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Introduce CleanProperties #622

Merged
merged 1 commit into from Feb 24, 2023
Merged

Introduce CleanProperties #622

merged 1 commit into from Feb 24, 2023

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simPod
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@simPod simPod commented Dec 10, 2020

PropertiesFileTransformer uses java.utils.Properties internally as a storage.

java.utils.Properties store0() contains bw.write("#" + new Date().toString()); that prepends current timestamp before any content (after comments).

This effectively breaks reproducible builds that use PropertiesFileTransformer because every new build has different timestamp in transformed files.

CleanProperties implementation is introduced in order to remove prepended timestamp when creating output stream.

@johnrengelman johnrengelman added this to the 6.2 milestone Feb 21, 2021
@johnrengelman johnrengelman modified the milestones: 7.0, 8.0 Apr 26, 2021
@simPod
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simPod commented Nov 6, 2021

@johnrengelman can I do anything to move this forward?

@grongor
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grongor commented Nov 26, 2021

@johnrengelman please, can we do anything to move this forward? We are deploying several java applications in one pipeline, and it would be really nice if we could skip the ones that didn't change. And we can't do that now since the hash of the jar always changes...

@crafton
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crafton commented Sep 14, 2022

@johnrengelman will this change be moving forward?

PropertiesFileTransformer uses `java.utils.Properties` internally as a storage.

`java.utils.Properties` `store0()` contains `bw.write("#" + new Date().toString());` that prepends current timestamp before any content (after comments).

 This effectively breaks reproducible builds that use PropertiesFileTransformer because every new build has different timestamp in transformed files.

 CleanProperties implementation is introduced in order to remove prepended timestamp when creating output stream.
@simPod
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simPod commented Feb 15, 2023

Yet another rebase in few years. Fresh master.

@johnrengelman johnrengelman merged commit 31562dd into johnrengelman:master Feb 24, 2023
@simPod simPod deleted the clean-props branch March 6, 2023 18:55
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4 participants