linux/poky.git/meta/classes/reproducible_build.bbclass, branch uninative-2.9

classes/reproducible: Move to library code

2020-07-22T11:45:56+00:00

Moves most of the python code used for dealing with the source date epoch to library code. (From OE-Core rev: a7ede90955bc0c8bec1cbb3cab498ef2583b2f4e) Signed-off-by: Joshua Watt Signed-off-by: Richard Purdie

reproducibile_build: Fix SDE file generation when unpack reruns

2020-03-08T08:21:11+00:00

Currently, if an existing TMPDIR is rebuilt, do_fetch/do_unpack can rerun but SDE would remain unchanged. This leads to different results compared to a fresh build. An example change which triggered this is: http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=cb4e69e6346a9fbeebf83a5d5397cacbd41d48b5 Instead, delete any existing SDE and recalculate if we're reunning. Also rename and drop the do_ prefix since these are for tasks, not functions. (From OE-Core rev: 5d579fc2fe71637fc6e071aa66542befa39ac8bb) Signed-off-by: Richard Purdie

classes/reproducible_build: Read SDE file later

2020-02-03T00:10:10+00:00

Defers the resolution of the SOURCE_DATE_EPOCH until the variable needs to be actually realized with a value. The previous method of loading the value in anonymous python had issues because it could occur before other anonymous python functions that affect the location of the epoch file, such as when a recipe uses AUTOINC/AUTOREV or allarch.bbclass. Also adds more logging to help diagnose issues in the future. [YOCTO #13763] (From OE-Core rev: b3313a10a3eb93f0a3710a35de0404fb49cd6202) Signed-off-by: Joshua Watt Signed-off-by: Richard Purdie

classes/reproducible_build: Create SDE destination

2019-10-02T19:22:25+00:00

Creates the source data epoch file destination directory when restoring from sstate (From OE-Core rev: f5259a62d444dfc221a9ba592dbca35564f794ac) Signed-off-by: Richard Purdie

classes/reproducible_build: Move SDE deploy to another directory

2019-09-27T12:02:16+00:00

The deployment of the source date epoch file had a race condition where any task attempting to read from the file would race with creation of the sstate archive for the do_deploy_source_date_epoch task. The creation of the sstate archive requires moving the directory to a temporary location, then moving it back. This means that the file disappears for a short period of time, which will cause a failure if any other task is running and trying to open the file to get the current source date epoch. The solution is to copy the source date epoch file to a separate directory when deploying so the file never disappears. When the file is restored from sstate, it is moved to the correct location after being extracted. [YOCTO #13501] (From OE-Core rev: ac27d12fe5480e9b8cc93de6a32bf9631c52d7f4) Signed-off-by: Joshua Watt Signed-off-by: Richard Purdie

reproducible: Don't look for youngest file when no source tarball

2018-11-23T23:35:19+00:00

Some packages (eg. init-ifupdown) take their source files entirely from openembedded-core, that is, they download no source tarball. These recipes either don't use S at all (ie. it is empty at unpack time), or they set S = WORKDIR (as in init-ifupdown). Looking at the file timestamps in the WORKDIR causes a non-reproducible SOURCE_DATE_EPOCH, as files taken from file:// URIs do not have reproducible timestamps. If S == WORKDIR, we are better to assume that there is no source tarball, and to fall back to a fixed timestamp for the SOURCE_DATE_EPOCH. This makes the init-ifupdown build reproducible. (From OE-Core rev: d395bad0179037eb5d0fa4d921985c87ae13f3a4) Signed-off-by: Douglas Royds Signed-off-by: Richard Purdie

reproducible: Refactor: Break out fixed_source_date_epoch() function

2018-11-23T23:35:19+00:00

(From OE-Core rev: 4eb6def4fe82959c2a348142b9eada27d3354aef) Signed-off-by: Douglas Royds Signed-off-by: Richard Purdie

reproducible_build: update do_deploy_source_date_epoch commment

2018-11-07T23:08:54+00:00

Once the value of SOURCE_DATE_EPOCH is determined, it is stored in the recipe's SDE_FILE. If none of the existing mechanisms are suitable, replace the do_deploy_source_date_epoch task with recipe-specific functionality to write the appropriate SOURCE_DATE_EPOCH into the SDE_FILE. (From OE-Core rev: e7b891b76954c784f5a93bd0a1c91315673ce40d) Signed-off-by: Douglas Royds Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

reproducible: Consistent debug logging

2018-09-22T01:45:46+00:00

Log both the source of the source_date_epoch and the resulting source_date_epoch in all cases. Also, now that we are determining the source_date_epoch successfully for both yocto and non-yocto kernels, remove the inherits_class('kernel') exception. We will log a failure to find a source_date_epoch for kernels as well. (From OE-Core rev: 48fe0e83435f9fb53b1e5b37d5d9f1c2caccd22d) Signed-off-by: Douglas Royds Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

reproducible: Don't enforce existence of ${S} dir

2018-09-22T01:45:46+00:00

Unnecessary. (From OE-Core rev: 75d5a9d72566aca7a9f08bea21523b3c66bddeae) Signed-off-by: Douglas Royds Signed-off-by: Ross Burton Signed-off-by: Richard Purdie