Software upgrading method, device, system and medium

Abstract

The invention provides a software upgrading method, a device, a system and a medium. The method comprises the following steps: reading file directories of a new software package and an old software package; traversing file directories of the new software package and the old software package, and comparing a new file in the file directory of the new software package with an old file in the file directory of the old software package to generate a patch file containing differential content between the new file and the old file; and upgrading the software based on the patch file and the old software package. By means of the method, the efficiency of the software updating process can be higher and more stable, and therefore the user updating experience is improved.

Description

technical field [0001] The invention relates to a software upgrading method, device, system and medium. Background technique [0002] In the field of mobile application development, software updates are much more frequent than traditional desktop software updates. Therefore, users will spend a considerable amount of network traffic on software updates during use. For the update of mobile terminal software, software developers usually provide new versions of software for users to download online and install locally. In order to save data traffic, the difference between the installation package of the new version and the installation package of the current version in the user's mobile phone is usually performed to generate a patch package. The patch pack is smaller in size than the full installer. After the user downloads the patch package to the local, use the patch package and the local installation package to regenerate a new version of the installation package for insta...

AI Technical Summary

Problems solved by technology

In this case, the technical solution cannot correctly handle empty files in META-INF, which will cause abnormalities in the functions implemented by using the empty file solution

[0007] Also, folder information is not included in MANIFEST.MF

If there are empty folders in the file directory structure of the installation package, it is usually not handled correctly to ensure that the composite package and the new package are exactly the same

At this time, if there is logic in the software code that involves these empty folders, it may cause abnormal function of the synthetic package

[0008] The above shows that this existing software upgrade method has defects in applicability and usability

[0009] (2) In addition, this prior art does not perform a differential comparison of the updated files in the old and new installation packages, but directly writes the corresponding files in the new version into the update package, which will cause the volume of the update package to change. Large, the effect of incremental update is not good, and the purpose of saving traffic is not well realized

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