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277 lines
7.3 KiB
Bash
Executable file
277 lines
7.3 KiB
Bash
Executable file
#!/bin/sh
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test_description='parallel-checkout basics
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Ensure that parallel-checkout basically works on clone and checkout, spawning
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the required number of workers and correctly populating both the index and the
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working tree.
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'
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TEST_NO_CREATE_REPO=1
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. ./test-lib.sh
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. "$TEST_DIRECTORY/lib-parallel-checkout.sh"
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# Test parallel-checkout with a branch switch containing a variety of file
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# creations, deletions, and modifications, involving different entry types.
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# The branches B1 and B2 have the following paths:
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#
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# B1 B2
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# a/a (file) a (file)
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# b (file) b/b (file)
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#
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# c/c (file) c (symlink)
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# d (symlink) d/d (file)
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#
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# e/e (file) e (submodule)
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# f (submodule) f/f (file)
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#
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# g (submodule) g (symlink)
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# h (symlink) h (submodule)
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#
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# Additionally, the following paths are present on both branches, but with
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# different contents:
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#
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# i (file) i (file)
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# j (symlink) j (symlink)
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# k (submodule) k (submodule)
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#
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# And the following paths are only present in one of the branches:
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#
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# l/l (file) -
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# - m/m (file)
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#
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test_expect_success 'setup repo for checkout with various types of changes' '
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test_config_global protocol.file.allow always &&
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git init sub &&
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(
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cd sub &&
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git checkout -b B2 &&
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echo B2 >file &&
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git add file &&
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git commit -m file &&
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git checkout -b B1 &&
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echo B1 >file &&
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git add file &&
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git commit -m file
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) &&
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git init various &&
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(
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cd various &&
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git checkout -b B1 &&
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mkdir a c e &&
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echo a/a >a/a &&
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echo b >b &&
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echo c/c >c/c &&
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test_ln_s_add c d &&
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echo e/e >e/e &&
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git submodule add ../sub f &&
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git submodule add ../sub g &&
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test_ln_s_add c h &&
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echo "B1 i" >i &&
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test_ln_s_add c j &&
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git submodule add -b B1 ../sub k &&
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mkdir l &&
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echo l/l >l/l &&
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git add . &&
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git commit -m B1 &&
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git checkout -b B2 &&
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git rm -rf :^.gitmodules :^k &&
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mkdir b d f &&
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echo a >a &&
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echo b/b >b/b &&
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test_ln_s_add b c &&
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echo d/d >d/d &&
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git submodule add ../sub e &&
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echo f/f >f/f &&
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test_ln_s_add b g &&
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git submodule add ../sub h &&
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echo "B2 i" >i &&
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test_ln_s_add b j &&
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git -C k checkout B2 &&
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mkdir m &&
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echo m/m >m/m &&
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git add . &&
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git commit -m B2 &&
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git checkout --recurse-submodules B1
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)
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'
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for mode in sequential parallel sequential-fallback
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do
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case $mode in
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sequential) workers=1 threshold=0 expected_workers=0 ;;
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parallel) workers=2 threshold=0 expected_workers=2 ;;
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sequential-fallback) workers=2 threshold=100 expected_workers=0 ;;
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esac
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test_expect_success "$mode checkout" '
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repo=various_$mode &&
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cp -R -P various $repo &&
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# The just copied files have more recent timestamps than their
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# associated index entries. So refresh the cached timestamps
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# to avoid an "entry not up-to-date" error from `git checkout`.
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# We only have to do this for the submodules as `git checkout`
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# will already refresh the superproject index before performing
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# the up-to-date check.
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#
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git -C $repo submodule foreach "git update-index --refresh" &&
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set_checkout_config $workers $threshold &&
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test_checkout_workers $expected_workers \
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git -C $repo checkout --recurse-submodules B2 &&
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verify_checkout $repo
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'
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done
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for mode in parallel sequential-fallback
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do
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case $mode in
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parallel) workers=2 threshold=0 expected_workers=2 ;;
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sequential-fallback) workers=2 threshold=100 expected_workers=0 ;;
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esac
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test_expect_success "$mode checkout on clone" '
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test_config_global protocol.file.allow always &&
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repo=various_${mode}_clone &&
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set_checkout_config $workers $threshold &&
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test_checkout_workers $expected_workers \
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git clone --recurse-submodules --branch B2 various $repo &&
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verify_checkout $repo
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'
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done
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# Just to be paranoid, actually compare the working trees' contents directly.
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test_expect_success 'compare the working trees' '
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rm -rf various_*/.git &&
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rm -rf various_*/*/.git &&
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# We use `git diff` instead of `diff -r` because the latter would
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# follow symlinks, and not all `diff` implementations support the
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# `--no-dereference` option.
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#
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git diff --no-index various_sequential various_parallel &&
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git diff --no-index various_sequential various_parallel_clone &&
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git diff --no-index various_sequential various_sequential-fallback &&
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git diff --no-index various_sequential various_sequential-fallback_clone
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'
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# Currently, each submodule is checked out in a separated child process, but
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# these subprocesses must also be able to use parallel checkout workers to
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# write the submodules' entries.
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test_expect_success 'submodules can use parallel checkout' '
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set_checkout_config 2 0 &&
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git init super &&
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(
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cd super &&
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git init sub &&
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test_commit -C sub A &&
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test_commit -C sub B &&
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git submodule add ./sub &&
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git commit -m sub &&
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rm sub/* &&
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test_checkout_workers 2 git checkout --recurse-submodules .
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)
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'
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test_expect_success 'parallel checkout respects --[no]-force' '
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set_checkout_config 2 0 &&
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git init dirty &&
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(
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cd dirty &&
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mkdir D &&
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test_commit D/F &&
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test_commit F &&
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rm -rf D &&
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echo changed >D &&
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echo changed >F.t &&
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# We expect 0 workers because there is nothing to be done
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test_checkout_workers 0 git checkout HEAD &&
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test_path_is_file D &&
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grep changed D &&
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grep changed F.t &&
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test_checkout_workers 2 git checkout --force HEAD &&
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test_path_is_dir D &&
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grep D/F D/F.t &&
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grep F F.t
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)
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'
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test_expect_success SYMLINKS 'parallel checkout checks for symlinks in leading dirs' '
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set_checkout_config 2 0 &&
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git init symlinks &&
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(
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cd symlinks &&
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mkdir D untracked &&
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# Commit 2 files to have enough work for 2 parallel workers
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test_commit D/A &&
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test_commit D/B &&
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rm -rf D &&
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ln -s untracked D &&
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test_checkout_workers 2 git checkout --force HEAD &&
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! test -h D &&
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grep D/A D/A.t &&
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grep D/B D/B.t
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)
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'
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# This test is here (and not in e.g. t2022-checkout-paths.sh), because we
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# check the final report including sequential, parallel, and delayed entries
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# all at the same time. So we must have finer control of the parallel checkout
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# variables.
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test_expect_success '"git checkout ." report should not include failed entries' '
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test_config_global filter.delay.process \
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"test-tool rot13-filter --always-delay --log=delayed.log clean smudge delay" &&
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test_config_global filter.delay.required true &&
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test_config_global filter.cat.clean cat &&
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test_config_global filter.cat.smudge cat &&
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test_config_global filter.cat.required true &&
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set_checkout_config 2 0 &&
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git init failed_entries &&
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(
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cd failed_entries &&
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cat >.gitattributes <<-EOF &&
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*delay* filter=delay
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parallel-ineligible* filter=cat
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EOF
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echo a >missing-delay.a &&
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echo a >parallel-ineligible.a &&
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echo a >parallel-eligible.a &&
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echo b >success-delay.b &&
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echo b >parallel-ineligible.b &&
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echo b >parallel-eligible.b &&
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git add -A &&
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git commit -m files &&
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a_blob="$(git rev-parse :parallel-ineligible.a)" &&
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rm .git/objects/$(test_oid_to_path $a_blob) &&
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rm *.a *.b &&
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test_checkout_workers 2 test_must_fail git checkout . 2>err &&
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# All *.b entries should succeed and all *.a entries should fail:
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# - missing-delay.a: the delay filter will drop this path
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# - parallel-*.a: the blob will be missing
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#
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grep "Updated 3 paths from the index" err &&
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test_stdout_line_count = 3 ls *.b &&
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! ls *.a
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)
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'
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test_done
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