CN105573785A - Differential package manufacturing method and device - Google Patents
Differential package manufacturing method and device Download PDFInfo
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- CN105573785A CN105573785A CN201510929911.7A CN201510929911A CN105573785A CN 105573785 A CN105573785 A CN 105573785A CN 201510929911 A CN201510929911 A CN 201510929911A CN 105573785 A CN105573785 A CN 105573785A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
- G06F8/658—Incremental updates; Differential updates
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Abstract
The invention discloses a differential package manufacturing method and device. The differential package manufacturing method comprises the following steps: determining target files in a new version file package and source files in an old version file package; respectively determining unique identifiers of the target files and the source files before decompression; decompressing the target files and the source files with different unique identifiers; determining whether the decompressed target files and the decompressed source files are the same; and if so, eliminating the target files the same as the source files, and manufacturing the target files different from the source files into a differential package. By adopting the differential package manufacturing method and device disclosed by the invention, files requiring no processing can be eliminated, thereby reducing the size of an upgrading package and accelerating the upgrading speed.
Description
Technical field
The present invention relates to technical field of data processing, particularly a kind of method for making of difference bag and device.
Background technology
Fig. 1 is OTA upgrading type schematic diagram, and as shown in the figure, OTA (Over-the-AirTechnology, over the air) upgrading has two types, and each type has corresponding purposes and advantage.This two type is respectively: IncrementOTA (increment/difference) and FullOTA (whole bag).
The maximum difference of OTA two type is " starting point " that create two kinds of different AKU.Do not need old (former) to wrap when creating whole bag, base (basis) directly can be used to wrap and carry out upgrading under normal circumstances, the size of whole bag is comparatively close to the mirror image of whole firmware.And the not specific restriction of difference bag, can be almost large with whole bag, also can only have a few KB, but under normal circumstances, difference bag is more much smaller than whole bag.Difference bag similarly is more a patch (patch), the part of source file A and file destination B difference can be thought, and source file A and file destination B is the compressed file utilizing some compression algorithms to make, as whether effect value is identical, server end judges that whether two files are variant by the identification information comparing two compressed files corresponding, as variant, then by difference compiler, the difference section of A bag and B bag is generated difference AKU.The advantage of difference upgrading scheme is that the difference bag made is smaller relative to complete package data amount, relative to more easily controlling whole bag and making.Easily find out, during current all kinds of smart machine system upgrade, generally use difference bag to upgrade, all the more so in the android system generally used.Reason is just that its volume is far smaller than the upgrading of full dose bag.
But, present inventor finds, the current System level gray correlation subpackage production program of prior art mainly focuses on the making completing bag how fast, be embodied in relatively going up difference, comparing also namely to difference between upgrade file with source file, but, in the process making difference bag, because source file and file destination are the compressed file using compression algorithm to make in essence, current various compression algorithm all inevitably can introduce some unnecessary redundant informations, this redundant information does not belong to the updated contents of essence, the modification time change of such as file, the package information etc. such as different compilation time points, this type of information can join in difference bag when using tool of compression compression, during actual use, real software update code part may not change, that is, this type of redundant information is fabricated in bag by difference AKU that prior art makes usually in the lump, increase the quantity of documents in difference bag, have impact on the time shared by escalation process further.
Summary of the invention
The invention provides a kind of method for making and device of difference bag, in order to the production method by changing difference bag, avoid the redundant information not belonging to essence updated contents to add in difference bag, the embodiment of the present application can reduce the size of difference bag, and then shortens difference escalation process.
Provide a kind of method for making of difference bag in the embodiment of the present invention, comprising:
Determine each file destination in new edition file bag and each source file in legacy version file bag;
Determine the unique identification of each file destination before decompressing and each source file respectively;
The file destination not identical to unique identification and source file decompress;
Determine that whether the file destination after decompressing is identical with source file;
If identical, after rejecting the file destination identical with source file, the file destination not identical with described source file is made into difference bag.
Provide a kind of producing device of difference bag in the embodiment of the present invention, comprise
File determination module, for determining each file destination in new edition file bag and each source file in legacy version file bag;
Mark determination module, for determining the unique identification of each file destination before decompressing and each source file respectively;
Decompression module, for decompressing to the not identical file destination of unique identification and source file;
Whether judge module is identical with source file for determining the file destination after decompressing;
Difference packs makes module, if for identical, after rejecting the file destination identical with source file, the file destination not identical with described source file is made into difference bag.
Beneficial effect of the present invention is as follows:
In the technical scheme that the embodiment of the present invention provides, due to before carrying out source file and file destination comparison, the unique identification with uniqueness first according to two kinds of files is compared, the file destination not identical to unique identification and source file decompress, realize contrast further, and the rear file destination identical with source file that decompress is rejected, the remaining file destination not identical with source file is made into difference bag, prior art makes difference bag by means of only the otherness of identification information judgment source file and file destination, the embodiment of the present application compares through twice, namely identification information is compared and whether the source file after comparing decompression is identical with file destination, finally judge to use which documenting difference bag, because this programme can reject the rear file destination identical with source file that decompress, remain the discrepant file destination with source file and make difference bag, file destination namely identical with source file for the redundant information not belonging to essence updated contents is avoided to add in difference bag, therefore the application can reduce the size of difference AKU, and further shorten difference escalation process, accelerate updating speed.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is OTA upgrading type schematic diagram in background technology;
Fig. 2 is the method for making implementing procedure schematic diagram of difference bag in the embodiment of the present invention;
Fig. 3 is the producing device structural representation of difference bag in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
Inventor notices in invention process:
The upgrading mode of difference bag downloads difference bag exactly on equipment, and increases file, deleted file newly according to upgrade script, and by the difference Patch write device between file, file destination is modified as source file.And in the process, in order to ensure the integrality of upgrading, can preserve the proof test value of file destination and the proof test value of source file in difference bag, proof test value is that the uniqueness of file represents, when only having proof test value to mate, upgrading can be started.Such as, supposing that Patch is the difference from file A to B, when upgrading, first will confirm that current file is exactly A, just can be determined by the proof test value calculating A file when confirming A, such as, calculate cryptographic hash.
Based on this, the making will the proof test value with uniqueness being utilized to carry out difference bag in the embodiment of the present invention, packs the mode of work to reduce size and the content of difference bag from difference, shortens the time of difference upgrading, reduces user and waits for.Specifically described below.
Fig. 2 is the method for making implementing procedure schematic diagram of difference bag, as shown in the figure, can comprise:
Step 201, determine each file destination in new edition file bag and each source file in legacy version file bag;
Step 202, determine each file destination before decompressing and the unique identification of each source file respectively;
Step 203, the not identical file destination of unique identification and source file to be decompressed;
Step 204, determine decompress after file destination whether identical with source file;
If step 205 is identical, after rejecting the file destination identical with source file, the file destination not identical with described source file is made into difference bag.
In enforcement, in this application the file in legacy version file bag is called source file, the file in new edition file bag is called file destination.
In step 202 determines that the uniquely identified of each file destination before decompressing and each source file is implemented respectively, again will check when making difference bag, utilize the unique identification of file to filter out invalid difference, and then ignore part variation file, thus reduce the quantity of documents in difference bag.Concrete, the file existed with compressed package form is when comparing, if proof test value is variant, then in step 203 by file destination and source file decompress(ion), after the All Files out of file destination decompress(ion) and source file solution are pressed out, compare in step 204, if the file of decompress(ion) is identical with source file, then do not think that this file is variant, ignores this file, otherwise, join in difference bag.
In enforcement, the difference bag be made into can be the difference bag for system file upgrading.
In enforcement, the difference bag be made into can be at the difference bag by using during OTA technology upgrading.
Concrete, the making of difference bag can be carried out on high-performance server, and the upgrading of difference bag, then for embedded device etc., is specially adapted to use by during OTA technology upgrading.
In the enforcement of step 202, unique identification can be the proof test value of file, and/or, the binary content of file.
Concrete, proof test value is the unique identification of compressed file, and conventional compressed file is all with proof test value, and equally, the binary content of compressed file is also one of unique identification of file, can determine that whether two compressed files are consistent by this mark.
Adopting the binary content of proof test value or file to be because they obtain than being easier in force, being also the means comparatively commonly used, there is certain typicalness; But, also be fine by other value, as long as can determine two compressed files whether the same, that there is uniqueness mark can adopt, the binary content of proof test value or file is only for instructing those skilled in the art specifically how to implement the present invention, but do not mean the binary content that only can use proof test value or file, can in conjunction with putting into practice needs to determine corresponding technological means in implementation process.
In the enforcement that the not identical file destination of step 203 pair unique identification and source file decompress, described decompression can adopt ZIP to decompress under Android platform, tgz or ZIP can be adopted under Linux platform to decompress.
ZIP or tgz is adopted to be because this is current compression & decompression mode the most conventional in force, so be described for ZIP or tgz here; But, also be fine by other decompression mode, as long as can by after file decompression, can be used in whether there is difference between comparison two files, ZIP or tgz is only for instructing those skilled in the art specifically how to implement the present invention, but do not mean and only can use ZIP or tgz, can in conjunction with putting into practice needs to determine the mode that decompresses accordingly in implementation process.
In the prior art, can automatically to file joining day stamp when adopting compress technique, also namely current various compression algorithms all can add band timestamp in different situations, the timestamp etc. that the timestamp of file and compressed file generate.After the technical scheme adopting above-described embodiment to provide, the change being only timestamp can be neglected in difference bag, the modification time change information of such as file, the temporal information etc. of different compiling.Why scheme can ignore the process of these information, is that difference only may be package information, and fileinfo, and real code and resource part do not change because information such as the timestamps added when using tool of compression compression.Screen out this type of difference, difference bag content tails off, and diminishes, though extend make difference bag time consuming time, but when device upgrade, also can promote speed during upgrading.
In the technical scheme that the embodiment of the present invention provides, due to before carrying out source file and file destination comparison, the unique identification with uniqueness first according to two kinds of files is compared, the file destination not identical to unique identification and source file decompress, realize contrast further, and the rear file destination identical with source file that decompress is rejected, the remaining file destination not identical with source file is made into difference bag, prior art makes difference bag by means of only the otherness of identification information judgment source file and file destination, the embodiment of the present application compares through twice, namely identification information is compared and whether the source file after comparing decompression is identical with file destination, finally judge to use which documenting difference bag, because this programme can reject the rear file destination identical with source file that decompress, remain the discrepant file destination with source file and make difference bag, file destination namely identical with source file for the redundant information not belonging to essence updated contents is avoided to add in difference bag, therefore the application can reduce the size of difference AKU, and further shorten difference escalation process, accelerate updating speed.
After the technical scheme adopting above-described embodiment to provide, the mode of work can be packed to reduce size and the content of difference bag from difference, because difference bag reduces, therefore objectively can shorten the time of difference upgrading, reduce user and wait for.
Based on same inventive concept, a kind of producing device of difference bag is additionally provided in the embodiment of the present invention, the principle of dealing with problems due to this device is similar to a kind of method for making of difference bag, and therefore the enforcement of this device see the enforcement of method, can repeat part and repeat no more.
Fig. 3 is the producing device structural representation of difference bag, as shown in the figure, can comprise:
File determination module 301, for determining each file destination in new edition file bag and each source file in legacy version file bag;
Mark determination module 302, for determining the unique identification of each file destination before decompressing and each source file respectively;
Decompression module 303, for decompressing to the not identical file destination of unique identification and source file;
Whether judge module 304 is identical with source file for determining the file destination after decompressing;
Difference packs makes module 305, if for identical, after rejecting the file destination identical with source file, the file destination not identical with described source file is made into difference bag.
In the technical scheme that the embodiment of the present invention provides, due to before carrying out source file and file destination comparison, the unique identification with uniqueness first according to two kinds of files is compared, the file destination not identical to unique identification and source file decompress, realize contrast further, and the rear file destination identical with source file that decompress is rejected, the remaining file destination not identical with source file is made into difference bag, prior art makes difference bag by means of only the otherness of identification information judgment source file and file destination, the embodiment of the present application compares through twice, namely identification information is compared and whether the source file after comparing decompression is identical with file destination, finally judge to use which documenting difference bag, because this programme can reject the rear file destination identical with source file that decompress, remain the discrepant file destination with source file and make difference bag, file destination namely identical with source file for the redundant information not belonging to essence updated contents is avoided to add in difference bag, therefore the application can reduce the size of difference AKU, and further shorten difference escalation process, accelerate updating speed.
In enforcement, difference packs to be made module and can also be further used for each not identical file destination to be made into difference bag for system file upgrading.
In enforcement, difference packs the difference bag made module and can also be further used for being made into by each not identical file destination by using during OTA technology upgrading.
In enforcement, decompression module can also be further used for adopting ZIP to decompress under Android platform, under Linux platform, adopt tgz or ZIP to decompress.
In enforcement, mark determination module can also be further used for the proof test value according to file, and/or the binary content of file determines described unique identification.
For convenience of description, each several part of the above device is divided into various module or unit to describe respectively with function.Certainly, the function of each module or unit can be realized in same or multiple software or hardware when implementing of the present invention.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disk memory and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the process flow diagram of the method for the embodiment of the present invention, equipment (system) and computer program and/or block scheme.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block scheme and/or square frame and process flow diagram and/or block scheme and/or square frame.These computer program instructions can being provided to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computing machine or other programmable data processing device produce device for realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make on computing machine or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computing machine or other programmable devices is provided for the step realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a method for making for difference bag, is characterized in that, comprising:
Determine each file destination in new edition file bag and each source file in legacy version file bag;
Determine the unique identification of each file destination before decompressing and each source file respectively;
The file destination not identical to unique identification and source file decompress;
Determine that whether the file destination after decompressing is identical with source file;
If identical, after rejecting the file destination identical with source file, the file destination not identical with described source file is made into difference bag.
2. the method for claim 1, is characterized in that, the difference bag be made into is the difference bag for system file upgrading.
3. the method for claim 1, is characterized in that, the difference bag be made into is at the difference bag by using during over the air OTA technology upgrading.
4. the method for claim 1, is characterized in that, described decompression adopts ZIP to decompress under Android platform, under Linux platform, adopt tgz or ZIP to decompress.
5. the method as described in as arbitrary in Claims 1-4, it is characterized in that, described unique identification is the proof test value of file, and/or, the binary content of file.
6. a producing device for difference bag, is characterized in that, comprising:
File determination module, for determining each file destination in new edition file bag and each source file in legacy version file bag;
Mark determination module, for determining the unique identification of each file destination before decompressing and each source file respectively;
Decompression module, for decompressing to the not identical file destination of unique identification and source file;
Whether judge module is identical with source file for determining the file destination after decompressing;
Difference packs makes module, if for identical, after rejecting the file destination identical with source file, the file destination not identical with described source file is made into difference bag.
7. device as claimed in claim 6, is characterized in that, difference packs and is further used for each not identical file destination being made into the difference bag for system file upgrading as module.
8. device as claimed in claim 6, is characterized in that, difference packs and is further used for as module the difference bag that is made into by each not identical file destination by using during OTA technology upgrading.
9. device as claimed in claim 6, it is characterized in that, decompression module is further used for adopting ZIP to decompress under Android platform, under Linux platform, adopt tgz or ZIP to decompress.
10. the device as described in as arbitrary in claim 6 to 9, is characterized in that, mark determination module is further used for determining described unique identification according to the proof test value of file and/or the binary content of file.
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| CN201510929911.7A CN105573785A (en) | 2015-12-11 | 2015-12-11 | Differential package manufacturing method and device |
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| CN201510929911.7A CN105573785A (en) | 2015-12-11 | 2015-12-11 | Differential package manufacturing method and device |
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| CN106020873A (en) * | 2016-05-13 | 2016-10-12 | 腾讯科技（深圳）有限公司 | Service pack loading method and device |
| CN106462430A (en) * | 2016-08-29 | 2017-02-22 | 北京小米移动软件有限公司 | Method and device for obtaining application upgrade packages |
| CN106686578A (en) * | 2016-12-28 | 2017-05-17 | 深圳天珑无线科技有限公司 | Difference package generation method and apparatus |
| CN106775835A (en) * | 2016-11-28 | 2017-05-31 | 广东欧珀移动通信有限公司 | Obtain method, server and the terminal of upgrade file |
| CN108874439A (en) * | 2018-07-02 | 2018-11-23 | 京东方科技集团股份有限公司 | Obtain method and device, upgrade method and the device of customization difference packet |
| WO2019020111A1 (en) * | 2017-07-27 | 2019-01-31 | 中兴通讯股份有限公司 | Upgrade package making method and apparatus, and method and apparatus for upgrading file |
| CN110162330A (en) * | 2019-07-08 | 2019-08-23 | 上海赫千电子科技有限公司 | A kind of system and method applied to automobile ECU upgrade file |
| CN111316230A (en) * | 2018-07-19 | 2020-06-19 | 华为技术有限公司 | Method and equipment for generating patch package |
| CN112631633A (en) * | 2021-01-07 | 2021-04-09 | 南方电网数字电网研究院有限公司 | Function module upgrading method and device based on double-core intelligent electric meter |
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| US11947673B2 (en) | 2018-11-09 | 2024-04-02 | Huawei Technologies Co., Ltd. | Over-the-air upgrade method and related apparatus |
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| CN106020873A (en) * | 2016-05-13 | 2016-10-12 | 腾讯科技（深圳）有限公司 | Service pack loading method and device |
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| CN110162330B (en) * | 2019-07-08 | 2021-04-13 | 上海赫千电子科技有限公司 | System and method applied to automobile ECU (electronic control Unit) file upgrading |
| WO2021114101A1 (en) * | 2019-12-10 | 2021-06-17 | 深圳市欢太科技有限公司 | Method and apparatus for incremental update of file, and terminal and computer-readable storage medium |
| CN112631633A (en) * | 2021-01-07 | 2021-04-09 | 南方电网数字电网研究院有限公司 | Function module upgrading method and device based on double-core intelligent electric meter |
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Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Applicant after: Hisense Video Technology Co., Ltd Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Applicant before: HISENSE ELECTRIC Co.,Ltd. |
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