fix: Ensure bit-for-bit reproducibility of AppImage builds.#193
Merged
Conversation
Normalization of file timestamps and permissions was happening before some plugins were copied and the deploy step was run, making files in the AppDir non-deterministic. We now move the normalization to just before AppImage creation. Also, stop unsetting `SOURCE_DATE_EPOCH` during packaging. To avoid conflicts with `appimagetool`'s `-fstime` argument (which defaults to the current time), wrap `mksquashfs` to strip the `-fstime` flag, allowing it to honor the environment variable for the SquashFS superblock.
Contributor
|
Tip Preview URL: |
robinlinden
approved these changes
Feb 15, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Normalization of file timestamps and permissions was happening before some plugins were copied and the deploy step was run, making files in the AppDir non-deterministic. We now move the normalization to just before AppImage creation.
Also, stop unsetting
SOURCE_DATE_EPOCHduring packaging. To avoid conflicts withappimagetool's-fstimeargument (which defaults to the current time), wrapmksquashfsto strip the-fstimeflag, allowing it to honor the environment variable for the SquashFS superblock.This change is