WO2021114101A1

WO2021114101A1 - Method and apparatus for incremental update of file, and terminal and computer-readable storage medium

Info

Publication number: WO2021114101A1
Application number: PCT/CN2019/124363
Authority: WO
Inventors: 赵杰
Original assignee: 深圳市欢太科技有限公司; Oppo广东移动通信有限公司
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2021-06-17
Also published as: CN114402311A

Abstract

A method and apparatus for incremental update of a file, and a terminal and a computer-readable storage medium. The method comprises: a first terminal acquiring a differential file generated by a second terminal (201), and then restoring a third file to be subjected to incremental update to be a third restored file (202); then synthesizing the third restored file and the obtained differential file to obtain a first synthesized file (203); and then carrying out reverse restoration on the first synthesized file to obtain a fourth file that corresponds to the third file and has been completely subjected to incremental update (204). The technical effect of reducing a data download amount of a differential file when incremental update is performed on a file is achieved.

Description

File incremental update method, device, terminal and computer readable storage medium

Technical field

This application belongs to the field of communication technology, and in particular relates to a method, device, terminal, and computer-readable storage medium for incrementally updating files.

Background technique

When the terminal updates the file, it can be implemented in two ways: full update and incremental update.

Among them, when the full update method is used to update the file before the update, the terminal usually needs to download the entire updated file from the server to replace the file before the update to complete the file update. When an incremental update method is used to update the file before the update, the terminal only needs to download the difference file that records the difference between the updated file and the file before the update from the server, and then compare the file before the update with the difference file. The files are synthesized to realize the update of the files; therefore, compared with the full update mode, the incremental update mode can reduce the amount of data download to a certain extent.

Summary of the invention

The embodiments of the present application provide a method, device, terminal, and computer-readable storage medium for incrementally updating files, which can solve the technical problem of excessive data download of differential files when files are incrementally updated.

The first aspect of the embodiments of the present application provides a method for incrementally updating files, which is applied to a first terminal, and includes:

Obtain a differential file; the differential file includes a differential file obtained by a second terminal performing a differential operation on a first restored file and a second restored file; the first restored file is stored by the second terminal on the second terminal The file obtained by restoring the first file to be incrementally updated; the second restored file is the file obtained by restoring the second file corresponding to the first file that has been incrementally updated by the second terminal ；

Acquiring a third file to be incrementally updated stored by the first terminal, and restoring the third file as a third restoration file;

Synthesize the third restored file with the difference file to obtain a first synthesized file;

Performing reverse restoration on the first composite file to obtain a fourth file corresponding to the third file that has been incrementally updated.

The second aspect of the embodiments of the present application provides a method for incrementally updating files, which is applied to a second terminal, and includes:

Acquiring a first file to be incrementally updated stored by the second terminal and a second file corresponding to the first file that has been incrementally updated;

Restoring the first file as a first restoring file, and restoring the second file as a second restoring file;

Perform a differential operation on the first restored file and the second restored file to obtain a differential file; the differential file is used to perform, at the first terminal, a third file stored in the first terminal to be incrementally updated During incremental update, the third restored file corresponding to the third file is synthesized to obtain the first synthesized file, and the first synthesized file is reversely restored to obtain the completed increment corresponding to the third file The updated fourth file.

A third aspect of the embodiments of the present application provides an incremental update device for files, which is configured in a first terminal, and includes:

The first obtaining unit is configured to obtain a differential file; the differential file includes a differential file obtained by a second terminal performing a differential operation on a first restored file and a second restored file; the first restored file is the second terminal pair The file obtained by restoring the first file to be incrementally updated stored by the second terminal; the second restored file is the first file that the second terminal has completed the incremental update corresponding to the first file 2. The file obtained by restoring the file;

The first restoration unit is configured to obtain a third file to be incrementally updated stored in the first terminal, and restore the third file to a third restoration file;

A synthesis unit, configured to synthesize the third restored file and the difference file to obtain a first synthesized file;

The anti-restoration unit is configured to perform anti-restoration on the first composite file to obtain a fourth file corresponding to the third file that has been incrementally updated.

A fourth aspect of the embodiments of the present application provides an incremental update device for files, which is configured in a second terminal, and includes:

A second acquiring unit, configured to acquire a first file to be incrementally updated stored by the second terminal and a second file corresponding to the first file that has been incrementally updated;

A second restoring unit, configured to restore the first file to the first restored file, and restore the second file to the second restored file;

The difference unit is used to perform a difference operation on the first restored file and the second restored file to obtain a difference file; the difference file is used to incrementally update the to-be-stored first terminal at the first terminal When the third file of the third file is incrementally updated, the third restored file corresponding to the third file is synthesized to obtain the first synthesized file, and the first synthesized file is reversely restored to obtain the third file corresponding to the third file The fourth file that has been incrementally updated.

A fifth aspect of the embodiments of the present application provides a terminal including a memory, a processor, and a computer program stored in the memory and capable of running on the processor. The processor implements the steps of the method of the first aspect when the processor executes the computer program.

A sixth aspect of the embodiments of the present application provides a terminal including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and the processor implements the steps of the method of the second aspect when the processor executes the computer program.

A seventh aspect of the embodiments of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned method of the first aspect are implemented.

The eighth aspect of the embodiments of the present application provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method of the second aspect described above are implemented.

Description of the drawings

In order to more clearly describe the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application, and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative work.

FIG. 1 is a schematic diagram of the system architecture of a method for incrementally updating files provided by an embodiment of the present application;

2 is a schematic diagram of the first implementation process of the incremental update method for files provided by an embodiment of the present application;

Figure 3 is a schematic diagram of the implementation of file synthesis provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of the implementation process of confirming that the third file has been successfully incrementally updated according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a specific implementation flow of step 202 of the method for incrementally updating files provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of a second implementation flow of the method for incrementally updating files provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of an implementation process of judging the validity of a difference file provided by an embodiment of the present application;

FIG. 8 is a first structural schematic diagram of a file incremental update device provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of a second structure of a file incremental update device provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a terminal provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions, and advantages of this application clearer and clearer, the following further describes the application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not used to limit the present application. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the existence of the described features, wholes, steps, operations, elements and/or components, but does not exclude one or more other features , The existence or addition of a whole, a step, an operation, an element, a component, and/or a collection thereof.

It should also be understood that the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in the specification of this application and the appended claims, unless the context clearly indicates other circumstances, the singular forms "a", "an" and "the" are intended to include plural forms.

It should also be further understood that the term "and/or" used in the specification and appended claims of this application refers to one or more of the items listed in the associated list (a number of which includes two or more) Any combination and all possible combinations of and including these combinations.

In order to illustrate the above-mentioned technical solutions of the present application, specific embodiments are used for description below.

At present, when the terminal updates files, it can be implemented in two ways, full update and incremental update.

Specifically, when the terminal uses the full update method to update the file, the terminal usually needs to download the entire updated file from the server to replace the file before the update. With each update, the data volume of the file is constantly superimposed. , The amount of data download is relatively large when the file is updated using the full update method.

When an incremental update method is used to update the file before the update, the terminal only needs to download the difference file that records the difference between the updated file and the file before the update from the server, and then compare the file before the update with the difference file. The files are synthesized to realize the update of the files; therefore, compared with the full update mode, the incremental update mode can reduce the amount of data download to a certain extent.

In a general incremental update method, the differential file is often a first file to be incrementally updated stored on the server (second terminal) and a second file corresponding to the first file that has been incrementally updated. The difference is calculated. However, affected by the file format or compression algorithm of the first file and the second file, when the file format corresponding to the first file is converted or compressed, the file format of the first restored file and the file format of the second file corresponds to When the data change of the second restored file before conversion or compression is small, it will still cause a large data change between the first file and the second file, and finally make the difference operation between the first file and the second file directly. The data volume of the difference file is also relatively large.

For example, the content of the first file to be incrementally updated is the binary character obtained by compressing the character "aaabbb", and the compression dictionary of the compression algorithm is 0 for aaa and 1 for bbb, then the incremental update is to be performed The first file is "01". At this time, if the first file to be incrementally updated is incrementally updated, and the content of the incrementally updated file is the binary character obtained by compressing the character "aaabb", then Due to the change of file content, the corresponding compression dictionary of the same compression algorithm will change. For example, if the compression dictionary changes to 0 for a and 1 for b, then the incrementally updated file will be changed to "00011", thus It can be seen that when performing incremental update of the first file to be incrementally updated, although only the character "aaabbb" before compression corresponding to the first file to be incrementally updated is changed by one character, that is, "aaabbb "Is changed to "aaabb", but it will cause a big change in the compressed binary characters corresponding to the incrementally updated file, that is, from "01" to "00011". Therefore, the difference file obtained by directly performing the difference calculation on the first file to be incrementally updated and the file after the incremental update has the problem of excessive data volume.

Based on this, the embodiments of the present application provide a method, device, terminal, and computer-readable storage medium for incremental update of files, which can solve the technical problem of excessive data download when downloading differential files for incremental update.

FIG. 1 is a schematic structural diagram of a file incremental update system provided by an embodiment of the application. The file incremental update system includes a first terminal 100 and a second terminal 200 that can implement two-way communication. Wherein, the above-mentioned first terminal 100 and second terminal 200 may both be smart terminals such as mobile phones, computers, servers, etc. The following takes the second terminal as a server as an example for description.

In practical applications, when a certain file A has been updated, the server (the second terminal 200) may first upload the file A (the first file to be incrementally updated) and the updated file B corresponding to the file A. (The second file that has been incrementally updated corresponding to the first file) is restored separately to obtain the first restored file and the second restored file, and then the first restored file and the second restored file are performed Difference operation, get the difference file.

When the first terminal 100 needs to incrementally update the stored file C (the third file to be incrementally updated) that is the same as the file A, the first terminal 100 may send the file identification information to the second terminal (For example, the identification information of the file C, and the identification information may include identification information such as the file name or the MD5 value of the file), the second terminal 200 receives the differential file acquisition request sent by the first terminal 100 Then, the differential file corresponding to the differential file acquisition request stored by the second terminal 200 is sent to the first terminal 100. After acquiring the differential file sent by the second terminal 200, the first terminal 100 may first restore the file C to the third Restore the file, and then synthesize the third restored file with the obtained difference file to obtain the first synthesized file, and then reverse restore the first synthesized file to obtain the fourth file corresponding to file C that has been incrementally updated , To achieve incremental updates to file C.

In the embodiment of the present application, the first terminal restores the acquired third file stored in the first terminal to be incrementally updated as the third restored file, and then combines the third restored file with the obtained second file. The terminal synthesizes the difference file obtained by performing the difference operation on the first restored file and the second restored file to obtain the first synthesized file, and then reverse restores the first synthesized file to obtain the completed increase corresponding to the third file. The fourth file for incremental update; the differential file used for incremental update is the file obtained by the second terminal through the differential operation of the first restored file and the second restored file, instead of the first incremental update to be directly processed File and the second file corresponding to the first file that has been incrementally updated. Therefore, when the amount of data change between the first restored file and the second restored file is greater than that of the first file and the second file The amount of change should be small, so that the data amount of the difference file obtained by performing the difference operation on the first restored file and the second restored file is smaller than the data amount of the difference file obtained by directly performing the difference operation on the first file and the second file. Correspondingly, When the first terminal downloads the differential file generated by the second terminal, the amount of data that needs to be downloaded will also be reduced, which solves the technical problem of excessive data download of the differential file when the file is incrementally updated, and improves the file The efficiency of incremental updates.

Specifically, FIG. 2 shows a schematic diagram of the first implementation flow of a method for incrementally updating files provided by an embodiment of the present application. The method is applied to the first terminal, and the incremental file configuration on the first terminal is determined by the method. Executed by the update device, the incremental update method of the above file may include step 201 to step 204.

Step 201: Obtain a difference file.

Wherein, the above-mentioned differential file includes the differential file obtained by the second terminal performing the differential operation on the first restored file and the second restored file; the above-mentioned first restored file is the first to be incrementally updated stored by the second terminal on the second terminal. A file obtained by restoring a file; the above-mentioned second restored file is a file obtained by restoring a second file corresponding to the first file that has been incrementally updated by the second terminal.

Step 202: Obtain a third file to be incrementally updated stored in the first terminal, and restore the third file as a third restored file.

It should be noted that the third file and the first file are files with the same content, but their storage locations are different. The third file is stored in the first terminal, and the first file is stored in the second terminal.

In this embodiment of the application, when the first terminal needs to incrementally update the third file, it needs to first obtain the above-mentioned differential file generated from the first file with the same content as the third file, and restore the third file to the third file. The file is restored, so that in step 203 to step 204, the third restored file and the difference file are synthesized, and finally a fourth file corresponding to the third file that has been incrementally updated is obtained.

In some embodiments of the present application, when the third file is a compressed file in the first preset format, restoring the third file to the third restored file includes: decompressing the third file into the first decompressed file.

For example, when the compressed file in the first preset format is a compressed file in zip format or rar format, restoring the third file to the third restored file may include decompressing the compressed file in zip format or rar format to obtain document.

In some embodiments of the present application, when the third file is a file to be converted in a second preset format, the above-mentioned restoring the third file to the third restoration file includes: retrieving the third file The format conversion is performed to obtain a first converted file in a third preset format corresponding to the second preset format.

For example, if the file to be converted in the second preset format is a file to be converted in jpg format or png format, and the third preset format corresponding to the second preset format is a bmp bitmap format, then the third file Restoring to the third restored file may include converting the file to be converted in the jpg format or the png format into a file in the bmp bitmap format.

It should be noted that, here is only an example of the file to be converted in the second preset format. In other embodiments of the present application, other files to be converted in the second preset format may also be included.

In some embodiments of the present application, the above-mentioned restoring the third file as the third restoring file may further include: invoking the first plug-in to restore the third file as the third restoring file.

Wherein, the first plug-in may include an open source plug-in or a plug-in provided by the second terminal, or a plug-in provided by other third-party software developers.

For example, when the aforementioned third file is a file obtained through a third-party software developer’s custom encryption method or a third-party custom format file, the third file can be restored by calling the plug-in provided by the third-party software developer. The third restore file.

Correspondingly, the foregoing reverse restoration of the first composite file to obtain the fourth file corresponding to the third file that has been incrementally updated may also include: invoking the second plug-in to reverse the restoration of the first composite file to obtain the third file corresponding to the third file. The fourth file that has been incrementally updated.

Similarly, the aforementioned second plug-in may include an open source plug-in or a plug-in provided by the aforementioned second terminal, or a plug-in provided by other third-party software developers.

Step 203: Synthesize the third restored file and the difference file to obtain a first synthesized file.

Specifically, the above-mentioned differential file may carry the marking information of the updated second sub-file, the marking information of the non-updated second sub-file, and the file information of the newly added file, according to the information of the updated second sub-file. The tag information, the tag information of the second sub-file that does not exist and the file information of the newly added file can determine the need to replace the data of the third restored file and the update location and data content of the newly added data. Therefore, the first The third restored file is synthesized with the difference file, and the first synthesized file corresponding to the third restored file can be obtained.

For example, as shown in Figure 3, the line segment JK represents the data content of the third restored file, and the difference file records the need to add data content MN at point L of the data content line segment JK of the third restored file, and add the data content of the OP line segment Replaced with O'P', the third restored file and the difference file are synthesized, and the data content J'K' of the first synthesized file can be obtained.

In addition, in order to further improve the efficiency of the incremental update of the file and avoid the incremental update failure of the file due to errors in the data in the differential file, the third restored file and the differential file are synthesized above to obtain the first composite Before the file, the integrity check of the differential file can also be performed to reduce the probability that the incremental update of the file fails.

For example, compare the difference file obtained by the first terminal with the difference file sent by the second terminal to determine whether the difference file obtained by the first terminal is consistent with the difference file sent by the second terminal. If the difference file is inconsistent with the difference file sent by the second terminal, the difference file sent by the second terminal is reacquired, and when the difference file obtained by the first terminal is consistent with the difference file sent by the second terminal, that is, the integrity When the verification is successful, the third restored file is synthesized with the difference file to obtain the first synthesized file.

Specifically, due to various factors during the data transmission process, the differential file sent by the second terminal acquired by the processor of the first terminal may be inconsistent with the differential file sent by the second terminal, that is, the differential file is in the transmission process. An error occurred in the file. Therefore, in order to avoid the incremental update failure of the file caused by an error in the data transmission, and to improve the incremental update efficiency of the file, in some embodiments of the present application, the file of the first terminal is incrementally updated. Previously, the difference file obtained by the first terminal may be compared with the difference file sent by the second terminal to determine whether the obtained difference file is consistent with the difference file sent by the second terminal.

For example, the Cyclic Redundancy Check (CRC) method can be used to verify whether the differential files sent by the second terminal acquired by the processor of the first terminal are consistent, or by comparing the MD5 values of the differential files, and Or by comparing the hash values of the difference files, it is determined whether the obtained difference file is consistent with the difference file sent by the second terminal. However, those skilled in the art can also use data check methods such as direct comparison method, parity check method, exclusive OR check method, Hamming code check, etc. to verify the difference sent by the second terminal obtained by the processor of the first terminal. Whether the documents are consistent, these should belong to the idea of this application.

Step 204: Perform reverse restoration on the first composite file to obtain a fourth file corresponding to the third file that has been incrementally updated.

The foregoing reverse restoration of the first composite file to obtain a fourth file corresponding to the third file that has been incrementally updated indicates that the incremental update of the third file has been completed.

However, in order to confirm that the fourth file obtained by the incremental update of the third file is the target file of the incremental update of the file, in some embodiments of the present application, as shown in FIG. After anti-restoration obtains the fourth file corresponding to the third file that has been incrementally updated, it may include: step 401 to step 402.

Step 401: Determine whether the fourth file is consistent with the second file.

Step 402: If the fourth file is consistent with the second file, it is confirmed that the third file has been successfully incrementally updated.

In the embodiment of the present application, the above-mentioned differential file may carry identification information used to identify the file content of the second file, for example, the MD5 value or hash value of the second file. Therefore, the above-mentioned determining whether the fourth file is consistent with the second file It may include: calculating the identification information used to identify the file content of the fourth file, for example, the MD5 value or hash value of the fourth file, and then combining the identification information used to identify the file content of the fourth file with the identification information used to identify the fourth file. The identification information of the file content of the two files is compared. The identification information used to identify the file content of the fourth file is the same as the identification information used to identify the file content of the second file, which means that the fourth file is consistent with the second file. , The fourth file that has been incrementally updated corresponding to the third file is the target file for incremental update of the third file; otherwise, it means that the fourth file is inconsistent with the second file, and the above-mentioned corresponding to the third file has been updated. The fourth file that has been incrementally updated is not the target file for incrementally updating the third file. At this time, the third file stored by the first terminal can be fully updated, that is, the third file stored by the first terminal can be fully updated. Replace all files with the second file obtained.

Specifically, the above method for judging whether the fourth file is consistent with the second file can also refer to the above method for checking the integrity of the differential file, which will not be repeated here.

It should be noted that when the third file is an application installation package and other files, the third file usually contains multiple first sub-files, and some of these first sub-files are the first sub-files to be incrementally updated. Some first subfiles are first subfiles that do not need to be updated. In addition, due to the limitation of the restoration method, some updated first subfiles may not be restored. Therefore, in some embodiments of this application, as shown in the figure As shown in 5, the above-mentioned restoring the third file as the third restoring file may include: step 501 to step 502.

Step 501: Confirm the first subfile to be incrementally updated among the multiple first subfiles according to the difference file.

In the embodiment of the present application, the above-mentioned differential file may carry the marking information of the updated second subfile, the marking information of the second subfile that does not exist in the first file to be incrementally updated stored by the second terminal, and The file information of the newly-added file is added. Therefore, each first sub-file of the third file to be incrementally updated stored in the first terminal and each first file of the first file to be incrementally updated stored in the second terminal is added. Matching the tag information of the two sub-files can confirm the first sub-file to be incrementally updated and the first sub-file that does not need to be updated among the third files to be incrementally updated stored in the first terminal.

Step 502: Restore the first sub-file that can be restored among the first sub-files to be incrementally updated as the first reductive file.

Due to the limitation of the restoration method, some of the first subfiles to be incrementally updated may not be restored. Therefore, the traditional incremental update method can only be used for updating, and the first subfile that can be restored can be used The incremental update method of the file from step 201 to step 204 is updated. Therefore, it is necessary to confirm the first subfile that can be restored in the first subfile to be incrementally updated, and then restore the first subfile that can be restored For the first reduction of atomic files.

Specifically, the above-mentioned first sub-file that can be restored may include: among the first sub-files to be incrementally updated, a compressed file belonging to a first preset format or a first sub-file belonging to a file to be converted in a second preset format. , Or the first sub-file that can be restored by calling the first plug-in.

In some embodiments of the present application, after step 501, the method may further include: synthesizing the first subfile that cannot be restored among the first subfiles to be incrementally updated with the difference file to obtain The incrementally updated file corresponding to the first subfile that cannot be restored.

Specifically, the aforementioned first sub-file that cannot be restored may include: among the first sub-files to be incrementally updated, files that do not belong to compressed files in the first preset format and do not belong to files to be converted in the second preset format. At the same time, the first sub-file cannot be restored by calling the first plug-in.

It should be noted that, because the first subfile that cannot be restored belongs to the first subfile to be incrementally updated, that is, it belongs to the file that has a corresponding incremental update. Therefore, it needs to be compared with the difference The files are synthesized, and the incrementally updated file corresponding to the first subfile that cannot be restored is obtained.

Wherein, the difference file includes the second reduction file obtained by restoring the second subfile that can be restored in the first file and the third restoration obtained by restoring the corresponding third subfile that can be restored in the second file. A difference operation is performed on the file, and the difference operation is performed on the second subfile that cannot be restored in the first file and the corresponding third subfile that cannot be restored in the second file to obtain a difference file. In addition, the difference file may carry the marking information of the updated second sub-file, the marking information of the non-updated second sub-file, and the file information of the newly added file. Specifically, for the process of obtaining the difference file, refer to the description in the following related embodiments, which will not be repeated here.

In the embodiment of the present application, when the third file contains multiple first sub-files, synthesizing the third restored file with the difference file to obtain the first synthesized file may include: The first subfile that does not need to be updated among the multiple first subfiles is directly copied; the first subfile that can be restored in the first subfile to be incrementally updated is synthesized using the file incremental update method described in step 203 , Get the incrementally updated file corresponding to the first sub-file that can be restored; the first sub-file that cannot be restored among the first sub-files to be incrementally updated is synthesized with the difference file, and the obtained and cannot be restored The first sub-file corresponding to the file that has been incrementally updated; the copy file corresponding to the first sub-file that does not need to be updated, the file that has been incrementally updated corresponding to the first sub-file that can be restored, and The incrementally updated file corresponding to the first subfile that cannot be restored and the file information of the newly added file carried in the above-mentioned difference file are combined to obtain the first composite file.

FIG. 6 shows a schematic diagram of the second implementation flow of a method for incremental update of files provided by an embodiment of the present application. The method is applied to a second terminal and can be executed by an apparatus for incremental update of files configured on the second terminal. , The incremental update method of the aforementioned file may include step 601 to step 603.

Step 601: Obtain a first file to be incrementally updated stored in the second terminal and a second file corresponding to the first file that has been incrementally updated.

Step 602: Restore the first file to the first restored file, and restore the second file to the second restored file.

In some embodiments of the present application, when the first file is a compressed file in a first preset format, restoring the first file to the first restored file may include: decompressing the first file into a second restored file. unzip files. When the first file is the file to be converted in the second preset format, restoring the second file to the second restored file may include: formatting the second file to obtain the second file corresponding to the second preset format. Third, the second conversion file in the preset format.

In addition, the above-mentioned restoring the second file to the second restoring file may also include calling the first plug-in to restore the first file to the first restoring file and/or restoring the second file to the second restoring file.

Specifically, for the specific implementation of the foregoing step 602, reference may be made to the description of the foregoing step 202, which is not repeated here.

Step 603: Perform a differential operation on the first restored file and the second restored file to obtain a differential file.

Wherein, the above-mentioned difference file is used to synthesize the third restored file corresponding to the third file when the first terminal performs incremental update to the third file to be incrementally updated stored in the first terminal to obtain the first synthesized file , And perform reverse restoration on the first composite file to obtain a fourth file corresponding to the third file that has been incrementally updated.

In order to ensure the validity of the obtained differential file, in some embodiments of the present application, as shown in FIG. 7, after the above-mentioned differential operation is performed on the first restored file and the second restored file to obtain the differential file, it may include ：Step 701 to step 704.

Step 701: Synthesize the difference file with the first restored file to obtain a second synthesized file.

For the above method of synthesizing the difference file and the first restored file, reference may be made to the description of step 203 above, which will not be repeated here.

Step 702: Perform reverse restoration on the second composite file to obtain the file to be confirmed.

Step 703: Determine whether the file to be confirmed is consistent with the second file.

Specifically, for the above method for determining whether the file to be confirmed is consistent with the second file, reference may be made to the description of the above step 401 to step 402, which will not be repeated here.

Step 704: If the file to be confirmed is consistent with the second file, save the difference file obtained by performing the difference operation on the first restored file and the second restored file.

In the embodiment of the present application, when the file to be confirmed is consistent with the second file, it indicates that the differential file is valid. Therefore, the differential file can be saved so that the first terminal can obtain the differential file.

In some other embodiments of the present application, after the above-mentioned determining whether the file to be confirmed is consistent with the second file, it may further include: if the file to be confirmed is inconsistent with the second file, then the first restoration file and the second restoration The difference file obtained by the difference operation of the file is marked as an error file. That is, the obtained difference file is invalid. Further, the second terminal may also delete the difference file marked as an error file, so that the first terminal can perform a full update when a valid difference file cannot be obtained.

In some embodiments of the present application, when the first file is a file such as an application installation package, the first file may include multiple second sub-files, and correspondingly, the second file may also include multiple third sub-files; Since some of these second sub-files are updated second sub-files, some of the second sub-files are first sub-files that do not have updates. In addition, due to the limitation of the restoration method, some updated second sub-files may exist. The restoration cannot be performed. Therefore, before restoring the first file as the first restoration file and the second file as the second restoration file, the files of each second sub-file among the multiple second sub-files can be first restored. The identifier is compared with the file identifier of each third subfile in the plurality of third subfiles to obtain a second subfile of the plurality of second subfiles that has the same file identifier as the corresponding third subfile, and There is no second sub-file of the third sub-file with the same file identifier; then, the second sub-file with the same file identifier as the corresponding third sub-file is confirmed as no updated second sub-file, and all The second sub-file that does not have the third sub-file with the same file identifier is confirmed as the updated second sub-file.

Further, restoring the first file as the first restoration file and restoring the second file as the second restoration file may include: restoring the second subfile that can be restored among the updated second subfiles Restore to the second reduced file, and restore the third sub-file with the same file name as the restored second sub-file to the third reduced file.

Correspondingly, performing the differential operation on the first restored file and the second restored file to obtain the differential file may include: combining the second subfile that cannot be restored among the updated second subfiles with the corresponding third subfile. A file is subjected to a difference operation, and the second reduction file and the corresponding third reduction file are subjected to a difference operation to obtain the difference file; the difference file may carry a mark indicating that there is an updated second sub-file Information, the tag information of the updated second sub-file and the file information of the newly added file.

It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described sequence of actions. Because according to the present invention, certain steps can be performed in other orders.

FIG. 8 shows a schematic structural diagram of a file incremental update device 800 provided by an embodiment of the present application. The file incremental update device 800 is configured in a first terminal and includes an acquisition unit 801, a restoration unit 802, and a synthesis unit 803. And the anti-reduction unit 804.

The first obtaining unit 801 is configured to obtain a differential file; the differential file includes a differential file obtained by a second terminal performing a differential operation on a first restored file and a second restored file; the first restored file is the second terminal A file obtained by restoring a first file to be incrementally updated stored by the second terminal; the second restored file is a file obtained by the second terminal of the completed incremental update corresponding to the first file The file obtained by restoring the second file;

The first restoring unit 802 is configured to obtain a third file to be incrementally updated stored in the first terminal, and restore the third file to a third restored file;

The synthesis unit 803 is configured to synthesize the third restored file and the difference file to obtain a first synthesized file;

The anti-restoration unit 804 is configured to perform anti-restoration on the first composite file to obtain a fourth file corresponding to the third file that has been incrementally updated.

It should be noted that, for the convenience and conciseness of the description, the specific working process of the file incremental updating device 800 described above can refer to the corresponding process of the method described in the above-mentioned FIG. 2 to FIG. 5, which will not be repeated here.

FIG. 9 shows a schematic structural diagram of a file incremental update device 900 provided by an embodiment of the present application. The file incremental update device 900 is configured in a second terminal and includes an acquisition unit 901, a restoration unit 902, and a difference unit 903. .

The second obtaining unit 901 is configured to obtain a first file to be incrementally updated stored in the second terminal and a second file corresponding to the first file that has been incrementally updated;

The second restoring unit 902 is configured to restore the first file to the first restored file, and restore the second file to the second restored file;

The difference unit 903 is configured to perform a difference operation on the first restored file and the second restored file to obtain a difference file; the difference file is used for the first terminal to increment the to-be-stored first terminal When the updated third file is incrementally updated, the third restored file corresponding to the third file is synthesized to obtain the first synthesized file, and the first synthesized file is reversely restored to obtain the third file Corresponding to the fourth file that has been incrementally updated.

It should be noted that, for the convenience and conciseness of the description, the specific working process of the file incremental update device 900 described above can refer to the corresponding process of the method described in the above-mentioned FIG. 6 to FIG. 7, which will not be repeated here.

The present application also provides a terminal for implementing the method for incrementally updating the files in FIG. 2 to FIG. 5, that is, the first terminal includes: a memory, a processor, and stored in the memory and on the processor. The running computer program, when the processor executes the computer program, the following steps are implemented:

This application also provides another terminal for implementing the incremental update method for files shown in FIGS. 6 to 7, that is, the above-mentioned second terminal includes: a memory, a processor, and a memory and a processor, When the processor executes the computer program, the following steps are implemented:

Specifically, as shown in FIG. 10, in addition to the processor 11 and the memory 12, the aforementioned first terminal or second terminal may also include one or more input devices 13 (only one is shown in FIG. 10) and one or Multiple output devices 14 (only one is shown in Fig. 1). The processor 11, the memory 12, the input device 13 and the output device 14 are connected by a bus 15.

It should be understood that, in the embodiment of the present application, the so-called processor 11 may be a central processing unit (Central Processing Unit, CPU), and the processor may also be other general-purpose processors or digital signal processors (Digital Signal Processors, DSP). , Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

The input device 13 may include a virtual keyboard, a touch panel, a fingerprint sensor (used to collect user fingerprint information and fingerprint orientation information), a microphone, etc., and the output device 14 may include a display, a speaker, and the like.

The memory 12 may include a read-only memory and a random access memory, and provides instructions and data to the processor 11. A part or all of the memory 12 may also include a non-volatile random access memory. For example, the memory 12 may also store device type information.

The above-mentioned memory 12 stores a computer program, and the above-mentioned computer program can be run on the above-mentioned processor 11. For example, the above-mentioned computer program is a program of a file incremental update method. When the processor 11 executes the computer program, the steps in the embodiment of the incremental update method for files are implemented, for example, step 201 to step 204 shown in FIG. 2 or, for example, step 601 to step 603 shown in FIG. 6. Alternatively, when the processor 11 executes the computer program, the functions of the modules/units in the above device embodiments are implemented, such as the functions of the units 801 to 804 shown in FIG. 8 or the functions of the units 901 to 903 shown in FIG. 9.

The foregoing computer program may be divided into one or more modules/units, and the foregoing one or more modules/units are stored in the foregoing memory 12 and executed by the foregoing processor 11 to complete the present application. The aforementioned one or more modules/units may be a series of computer program instruction segments capable of completing specific functions, and the instruction segments are used to describe the execution process of the aforementioned computer program in the aforementioned first terminal that performs incremental file update. For example, the above-mentioned computer program can be divided into a first acquisition unit, a first restoration unit, a synthesis unit, and an anti-restoration unit. The specific functions of each unit are as follows: the first acquisition unit is used to acquire a differential file; the differential file includes a second A differential file obtained by a terminal performing a differential operation on a first restored file and a second restored file; the first restored file is the second terminal restoring the first file stored by the second terminal to be incrementally updated The second restored file is the file obtained by restoring the second file corresponding to the first file that has been incrementally updated by the second terminal; the first restoring unit is configured to obtain the The third file to be incrementally updated stored in the first terminal, and the third file is restored to the third restored file; the synthesis unit is configured to synthesize the third restored file with the difference file to obtain The first synthetic file; an anti-restoration unit, configured to perform an anti-restoration on the first synthetic file to obtain a fourth file corresponding to the third file that has been incrementally updated.

Alternatively, the above computer program can be divided into a second acquisition unit, a second restoration unit, and a difference unit, and the specific functions of each unit are as follows: the second acquisition unit is used to acquire the second terminal stored by the second terminal to be incrementally updated. A file and a second file corresponding to the first file that has been incrementally updated; a second restoring unit for restoring the first file to the first restoring file, and restoring the second file to A second restored file; a difference unit, configured to perform a differential operation on the first restored file and the second restored file to obtain a differential file; the differential file is used to store the first terminal on the first terminal When the third file to be incrementally updated is incrementally updated, the third restored file corresponding to the third file is synthesized to obtain the first synthesized file, and the first synthesized file is reversely restored to obtain the same The third file corresponds to the fourth file that has been incrementally updated.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the division of the above functional units and modules is used as an example. In practical applications, the above functions can be allocated to different functional units and modules as needed. Module completion, that is, the internal structure of the above device is divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist alone physically, or two or more units can be integrated into one unit. The above-mentioned integrated units can be hardware-based Formal realization can also be realized in the form of a software functional unit. In addition, the specific names of each functional unit and module are only for the convenience of distinguishing each other, and are not used to limit the protection scope of this application. For the specific working process of the units and modules in the foregoing system, reference may be made to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the above-mentioned embodiments, the description of each embodiment has its own focus. For parts that are not described in detail or recorded in an embodiment, reference may be made to related descriptions of other embodiments.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

In the embodiments provided in this application, it should be understood that the disclosed device/terminal and method may be implemented in other ways. For example, the above-described device/terminal embodiments are merely illustrative. For example, the division of the above-mentioned modules or units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components. It can be combined or integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described above as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the above integrated modules/units are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, this application implements all or part of the processes in the above-mentioned embodiments and methods, and can also be completed by instructing relevant hardware through a computer program. The above-mentioned computer program can be stored in a computer-readable storage medium, and the computer program When executed by the processor, the steps of the foregoing method embodiments can be implemented. Wherein, the above-mentioned computer program includes computer program code, and the above-mentioned computer program code may be in the form of source code, object code, executable file, or some intermediate forms. The above-mentioned computer-readable medium may include: any entity or device capable of carrying the above-mentioned computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random Access memory (Random Access Memory, RAM), electric carrier signal, telecommunications signal, software distribution medium, etc. It should be noted that the content contained in the above-mentioned computer-readable media can be appropriately added or deleted in accordance with the requirements of the legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to the legislation and patent practice, the computer-readable media cannot Including electric carrier signal and telecommunication signal.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still compare the foregoing embodiments. The recorded technical solutions are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the application, and should be included in this Within the scope of protection applied for.

Claims

A method for incremental updating of files, applied to a first terminal, characterized in that the incremental updating method includes:

Obtain a differential file; the differential file includes a differential file obtained by a second terminal performing a differential operation on a first restored file and a second restored file; the first restored file is stored by the second terminal on the second terminal The file obtained by restoring the first file to be incrementally updated; the second restored file is the file obtained by restoring the second file corresponding to the first file that has been incrementally updated by the second terminal ；

Acquiring a third file to be incrementally updated stored by the first terminal, and restoring the third file as a third restoration file;

Synthesize the third restored file with the difference file to obtain a first synthesized file;

Performing reverse restoration on the first composite file to obtain a fourth file corresponding to the third file that has been incrementally updated.
5. The incremental update method according to claim 1, wherein when the third file is a compressed file in a first preset format, restoring the third file to a third restored file comprises:

Decompress the third file into a first decompressed file.
The incremental update method according to claim 1, wherein when the third file is a file to be converted in a second preset format, the restoring the third file to the third restored file comprises:

Performing format conversion on the third file to obtain a first converted file in a third preset format corresponding to the second preset format.
8. The incremental update method according to claim 1, wherein said restoring said third file to a third restored file comprises:

Calling the first plug-in to restore the third file to the third restored file;

The reverse restoration of the first composite file to obtain a fourth file corresponding to the third file that has been incrementally updated includes:

Invoking the second plug-in to reverse the restoration of the first composite file to obtain the fourth file corresponding to the third file that has been incrementally updated.
The incremental update method according to any one of claims 2-4, wherein the third file includes a plurality of first sub-files, and the restoring the third file to the third restored file includes :

Confirming the first subfile to be incrementally updated among the plurality of first subfiles according to the difference file;

Restore the first subfile that can be restored among the first subfiles to be incrementally updated as the first reduction file.
The incremental update method according to claim 5, wherein after the confirming the first subfile to be incrementally updated among the plurality of first subfiles according to the difference file, the method comprises:

Synthesize the first sub-file that cannot be restored among the first sub-files to be incrementally updated with the difference file to obtain a completed incremental update corresponding to the first sub-file that cannot be restored file.
5. The incremental update method according to claim 1, wherein before synthesizing the third restored file with the difference file to obtain the first synthesized file, the method comprises:

Perform an integrity check on the differential file;

The synthesizing the third restored file with the difference file to obtain the first synthesized file includes:

If the integrity check succeeds, the third restored file and the difference file are synthesized to obtain the first synthesized file.
The incremental update method according to claim 1, wherein after the reverse restoration of the first composite file to obtain a fourth file corresponding to the third file that has been incrementally updated, the method comprises :

Determine whether the fourth file is consistent with the second file;

If the fourth file is consistent with the second file, it is confirmed that the third file has been successfully incrementally updated.
A method for incremental update of files, applied to a second terminal, characterized in that the incremental update method includes:

Acquiring a first file to be incrementally updated stored by the second terminal and a second file corresponding to the first file that has been incrementally updated;

Restoring the first file as a first restoring file, and restoring the second file as a second restoring file;

Perform a differential operation on the first restored file and the second restored file to obtain a differential file; the differential file is used to perform, at the first terminal, a third file stored in the first terminal to be incrementally updated During incremental update, the third restored file corresponding to the third file is synthesized to obtain the first synthesized file, and the first synthesized file is reversely restored to obtain the completed increment corresponding to the third file The updated fourth file.
The incremental update method of claim 9, wherein the first file includes a plurality of second sub-files, and the second file includes a plurality of third sub-files; Before restoring the file as the first restored file and restoring the second file as the second restored file, it includes:

The file identifier of each second subfile in the plurality of second subfiles is compared with the file identifier of each third subfile in the plurality of third subfiles to obtain the A second subfile with the same file identifier of the corresponding third subfile, and a second subfile in which there is no third subfile with the same file identifier;

The second subfile with the same file identifier as the corresponding third subfile is confirmed as no updated second subfile, and the second subfile that does not exist with the third subfile with the same file identifier is confirmed as There is an updated second subfile.
10. The incremental update method according to claim 10, wherein said restoring said first file as a first restoring file and restoring said second file as a second restoring file comprises:

Restore the second subfile that can be restored among the updated second subfiles to the second reduction file, and restore the third subfile with the same file name as the restored second subfile to the third Return atomic files.
The incremental update method of claim 11, wherein:

The performing a differential operation on the first restored file and the second restored file to obtain a differential file includes:

Perform a difference operation between the second subfile that cannot be restored among the updated second subfiles and the corresponding third subfile, and perform the second reduction file with the corresponding third reduction file The difference operation is performed to obtain the difference file; the difference file carries the mark information of the updated second subfile, the mark information of the second subfile that does not exist, and the file information of the newly added file.
9. The incremental update method according to claim 9, wherein after performing a differential operation on the first restored file and the second restored file to obtain a differential file, the method comprises:

Synthesize the difference file with the first restored file to obtain a second synthesized file;

Reverse restore the second composite file to obtain the file to be confirmed;

Determine whether the file to be confirmed is consistent with the second file;

If the file to be confirmed is consistent with the second file, save the difference file obtained by performing a difference operation on the first restored file and the second restored file.
The incremental update method according to claim 13, wherein after determining whether the file to be confirmed is consistent with the second file, the method comprises:

If the file to be confirmed is inconsistent with the second file, the difference file obtained by performing the difference operation on the first restored file and the second restored file is marked as an error file.
A device for incrementally updating files, which is configured in a first terminal, is characterized in that it includes:

The first obtaining unit is configured to obtain a differential file; the differential file includes a differential file obtained by a second terminal performing a differential operation on a first restored file and a second restored file; the first restored file is the second terminal pair The file obtained by restoring the first file to be incrementally updated stored by the second terminal; the second restored file is the first file that the second terminal has completed the incremental update corresponding to the first file 2. The file obtained by restoring the file;

The first restoration unit is configured to obtain a third file to be incrementally updated stored in the first terminal, and restore the third file to a third restoration file;

A synthesis unit, configured to synthesize the third restored file and the difference file to obtain a first synthesized file;

The anti-restoration unit is configured to perform anti-restoration on the first composite file to obtain a fourth file corresponding to the third file that has been incrementally updated.
A device for incrementally updating files, which is configured in a second terminal, is characterized in that it includes:

A second acquiring unit, configured to acquire a first file to be incrementally updated stored by the second terminal and a second file corresponding to the first file that has been incrementally updated;

A second restoring unit, configured to restore the first file to the first restored file, and restore the second file to the second restored file;

The difference unit is used to perform a difference operation on the first restored file and the second restored file to obtain a difference file; the difference file is used to incrementally update the to-be-stored first terminal at the first terminal When the third file of the third file is incrementally updated, the third restored file corresponding to the third file is synthesized to obtain the first synthesized file, and the first synthesized file is reversely restored to obtain the third file corresponding to the third file The fourth file that has been incrementally updated.
A terminal includes a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the processor implements the following steps when the processor executes the computer program:

Obtain a differential file; the differential file includes a differential file obtained by a second terminal performing a differential operation on a first restored file and a second restored file; the first restored file is stored by the second terminal on the second terminal The file obtained by restoring the first file to be incrementally updated; the second restored file is the file obtained by restoring the second file corresponding to the first file that has been incrementally updated by the second terminal ；

Acquiring a third file to be incrementally updated stored by the first terminal, and restoring the third file as a third restoration file;

Synthesize the third restored file with the difference file to obtain a first synthesized file;

Performing reverse restoration on the first composite file to obtain a fourth file corresponding to the third file that has been incrementally updated.
A terminal includes a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the processor implements the following steps when the processor executes the computer program:

Acquiring a first file to be incrementally updated stored by the second terminal and a second file corresponding to the first file that has been incrementally updated;

Restoring the first file as a first restoring file, and restoring the second file as a second restoring file;

Perform a differential operation on the first restored file and the second restored file to obtain a differential file; the differential file is used to perform, at the first terminal, a third file stored in the first terminal to be incrementally updated During incremental update, the third restored file corresponding to the third file is synthesized to obtain the first synthesized file, and the first synthesized file is reversely restored to obtain the completed increment corresponding to the third file The updated fourth file.
A computer-readable storage medium storing a computer program, wherein the computer program implements the steps of the method according to any one of claims 1 to 8 when the computer program is executed by a processor.
A computer-readable storage medium storing a computer program, wherein the computer program implements the steps of the method according to any one of claims 9 to 14 when the computer program is executed by a processor.