GIMP builds have suddenly stopped completing with a message that:
Failed to stage: Parts 'babl' and 'desktop-launch' have the following files, but with different contents:
usr/lib/gcc/x86_64-linux-gnu/7/libgcc_s.so.1
Both those parts list the following in their section of the log:
babl
Copying needed symlink target '/lib/x86_64-linux-gnu/libgcc_s.so.1' from host to satisfy '/build/gimp/parts/babl/install/usr/lib/gcc/x86_64-linux-gnu/7/libgcc_s.so.1'.
desktop-launch
Copying needed symlink target '/lib/x86_64-linux-gnu/libgcc_s.so.1' from host to satisfy '/build/gimp/parts/desktop-launch/install/usr/lib/gcc/x86_64-linux-gnu/7/libgcc_s.so.1'.
I think there is something wrong in Snapcraft that is detecting that these files, which should be identical, are different.
While Iām not sure why the contents end up differing, Iām wondering if we should not be copying host files if the file is found in the base snap?
I attempted a minimal reproducer:
name: my-snap-name # you probably want to 'snapcraft register <name>'
base: core18 # the base snap is the execution environment for this snap
version: '0.1' # just for humans, typically '1.2+git' or '1.3.2'
summary: Single-line elevator pitch for your amazing snap # 79 char long summary
description: |
This is my-snap's description. You have a paragraph or two to tell the
most important story about your snap. Keep it under 100 words though,
we live in tweetspace and your description wants to look good in the snap
store.
grade: devel # must be 'stable' to release into candidate/stable channels
confinement: devmode # use 'strict' once you have the right plugs and slots
parts:
babl:
plugin: nil
stage-packages: [libgcc-7-dev]
desktop-launch:
plugin: nil
stage-packages: [libgcc-7-dev]
Output looks similar, but it builds OK:
<snip>
Copying needed symlink target '/lib/x86_64-linux-gnu/libgcc_s.so.1' from host to satisfy '/root/parts/babl/install/usr/lib/gcc/x86_64-linux-gnu/7/libgcc_s.so.1'.
Pulling babl
+ snapcraftctl pull
Hit http://security.ubuntu.com/ubuntu bionic-security InRelease
Hit http://archive.ubuntu.com/ubuntu bionic InRelease
Hit http://archive.ubuntu.com/ubuntu bionic-updates InRelease
Fetched 0 B in 0s (0 B/s)
Get:1 libgcc-7-dev_7.5.0-3ubuntu1~18.04_amd64.deb [2378 kB]
Fetched 0 B in 0s (0 B/s)
Get:1 libmpx2_8.4.0-1ubuntu1~18.04_amd64.deb [11.6 kB]
Fetched 0 B in 0s (0 B/s)
Get:1 gcc-8-base_8.4.0-1ubuntu1~18.04_amd64.deb [18.7 kB]
Fetched 0 B in 0s (0 B/s)
Get:1 libitm1_8.4.0-1ubuntu1~18.04_amd64.deb [27.9 kB]
Fetched 0 B in 0s (0 B/s)
Get:1 gcc-7-base_7.5.0-3ubuntu1~18.04_amd64.deb [18.3 kB]
Fetched 0 B in 0s (0 B/s)
Get:1 libcilkrts5_7.5.0-3ubuntu1~18.04_amd64.deb [42.5 kB]
Fetched 0 B in 0s (0 B/s)
Get:1 libasan4_7.5.0-3ubuntu1~18.04_amd64.deb [358 kB]
Fetched 0 B in 0s (0 B/s)
Get:1 libquadmath0_8.4.0-1ubuntu1~18.04_amd64.deb [134 kB]
Fetched 0 B in 0s (0 B/s)
Get:1 libtsan0_8.4.0-1ubuntu1~18.04_amd64.deb [288 kB]
Fetched 0 B in 0s (0 B/s)
Get:1 libubsan0_7.5.0-3ubuntu1~18.04_amd64.deb [126 kB]
Fetched 0 B in 0s (0 B/s)
Get:1 liblsan0_8.4.0-1ubuntu1~18.04_amd64.deb [133 kB]
Fetched 0 B in 0s (0 B/s)
Get:1 libgomp1_8.4.0-1ubuntu1~18.04_amd64.deb [76.5 kB]
Fetched 0 B in 0s (0 B/s)
Get:1 libatomic1_8.4.0-1ubuntu1~18.04_amd64.deb [9192 B]
Fetched 0 B in 0s (0 B/s)
Copying needed symlink target '/lib/x86_64-linux-gnu/libgcc_s.so.1' from host to satisfy '/root/parts/desktop-launch/install/usr/lib/gcc/x86_64-linux-gnu/7/libgcc_s.so.1'.
Pulling desktop-launch
+ snapcraftctl pull
Building babl
+ snapcraftctl build
Building desktop-launch
+ snapcraftctl build
Staging babl
+ snapcraftctl stage
Staging desktop-launch
+ snapcraftctl stage
Priming babl
+ snapcraftctl prime
Priming desktop-launch
+ snapcraftctl prime
Snapping |
Snapped my-snap-name_0.1_amd64.snap
Iāve found a fix, but still havenāt worked out how to reproduce it in a small testcase. The problem seems to be related to an accidentally-staged g++ package in the desktop-launch part of gimp. Iāve filed a PR to remove that accident.
