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fetchGit/fetchTree: Improve exportIgnore, submodule interaction

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Also fingerprint and some preparatory improvements.

Testing is still not up to scratch because lots of logic is duplicated
between the workdir and commit cases.
This commit is contained in:
Robert Hensing 2023-12-11 22:36:08 +01:00
parent 1bbe837184
commit 99bd12f0b1
5 changed files with 101 additions and 16 deletions
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42
tests/functional/fetchGitSubmodules.sh
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@ -118,3 +118,45 @@ cloneRepo=$TEST_ROOT/a/b/gitSubmodulesClone # NB /a/b to make the relative path
git clone $rootRepo $cloneRepo
pathIndirect=$(nix eval --raw --expr "(builtins.fetchGit { url = file://$cloneRepo; rev = \"$rev2\"; submodules = true; }).outPath")
[[ $pathIndirect = $pathWithRelative ]]
# Test submodule export-ignore interaction
git -C $rootRepo/sub config user.email "foobar@example.com"
git -C $rootRepo/sub config user.name "Foobar"
echo "/exclude-from-root export-ignore" >> $rootRepo/.gitattributes
echo nope > $rootRepo/exclude-from-root
git -C $rootRepo add .gitattributes exclude-from-root
git -C $rootRepo commit -m "Add export-ignore"
echo "/exclude-from-sub export-ignore" >> $rootRepo/sub/.gitattributes
echo nope > $rootRepo/sub/exclude-from-sub
git -C $rootRepo/sub add .gitattributes exclude-from-sub
git -C $rootRepo/sub commit -m "Add export-ignore (sub)"
git -C $rootRepo add sub
git -C $rootRepo commit -m "Update submodule"
git -C $rootRepo status
# exportIgnore can be used with submodules
pathWithExportIgnore=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = file://$rootRepo; submodules = true; exportIgnore = true; }).outPath")
# find $pathWithExportIgnore
# git -C $rootRepo archive --format=tar HEAD | tar -t
# cp -a $rootRepo /tmp/rootRepo
[[ -e $pathWithExportIgnore/sub/content ]]
[[ ! -e $pathWithExportIgnore/exclude-from-root ]]
[[ ! -e $pathWithExportIgnore/sub/exclude-from-sub ]]
# exportIgnore can be explicitly disabled with submodules
pathWithoutExportIgnore=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = file://$rootRepo; submodules = true; exportIgnore = false; }).outPath")
# find $pathWithoutExportIgnore
[[ -e $pathWithoutExportIgnore/exclude-from-root ]]
[[ -e $pathWithoutExportIgnore/sub/exclude-from-sub ]]
# exportIgnore defaults to false when submodules = true
pathWithSubmodules=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = file://$rootRepo; submodules = true; }).outPath")
[[ -e $pathWithoutExportIgnore/exclude-from-root ]]
[[ -e $pathWithoutExportIgnore/sub/exclude-from-sub ]]