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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:47:53 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:47:53 +0000 |
commit | c8bae7493d2f2910b57f13ded012e86bdcfb0532 (patch) | |
tree | 24e09d9f84dec336720cf393e156089ca2835791 /t/t6012-rev-list-simplify.sh | |
parent | Initial commit. (diff) | |
download | git-17a789943131483bc454986d1be6da6caaabce8c.tar.xz git-17a789943131483bc454986d1be6da6caaabce8c.zip |
Adding upstream version 1:2.39.2.upstream/1%2.39.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 't/t6012-rev-list-simplify.sh')
-rwxr-xr-x | t/t6012-rev-list-simplify.sh | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/t/t6012-rev-list-simplify.sh b/t/t6012-rev-list-simplify.sh new file mode 100755 index 0000000..de1e87f --- /dev/null +++ b/t/t6012-rev-list-simplify.sh @@ -0,0 +1,288 @@ +#!/bin/sh + +test_description='merge simplification' + +GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main +export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME + +. ./test-lib.sh + +note () { + git tag "$1" +} + +unnote () { + test_when_finished "rm -f tmp" && + git name-rev --tags --annotate-stdin >tmp && + sed -e "s|$OID_REGEX (tags/\([^)]*\)) |\1 |g" <tmp +} + +# +# Create a test repo with an interesting commit graph: +# +# A-----B-----G--H--I--K--L +# \ \ / / +# \ \ / / +# C--D--E--F J +# +# The commits are laid out from left-to-right starting with +# the root commit A and terminating at the tip commit L. +# +# There are a few places where we adjust the commit date or +# author date to make the --topo-order, --date-order, and +# --author-date-order flags produce different output. + +test_expect_success setup ' + echo "Hi there" >file && + echo "initial" >lost && + git add file lost && + test_tick && git commit -m "Initial file and lost" && + note A && + + git branch other-branch && + + git symbolic-ref HEAD refs/heads/unrelated && + git rm -f "*" && + echo "Unrelated branch" >side && + git add side && + test_tick && git commit -m "Side root" && + note J && + git checkout main && + + echo "Hello" >file && + echo "second" >lost && + git add file lost && + test_tick && GIT_AUTHOR_DATE=$(($test_tick + 120)) git commit -m "Modified file and lost" && + note B && + + git checkout other-branch && + + echo "Hello" >file && + >lost && + git add file lost && + test_tick && git commit -m "Modified the file identically" && + note C && + + echo "This is a stupid example" >another-file && + git add another-file && + test_tick && git commit -m "Add another file" && + note D && + + test_tick && + test_must_fail git merge -m "merge" main && + >lost && git commit -a -m "merge" && + note E && + + echo "Yet another" >elif && + git add elif && + test_tick && git commit -m "Irrelevant change" && + note F && + + git checkout main && + echo "Yet another" >elif && + git add elif && + test_tick && git commit -m "Another irrelevant change" && + note G && + + test_tick && git merge -m "merge" other-branch && + note H && + + echo "Final change" >file && + test_tick && git commit -a -m "Final change" && + note I && + + git checkout main && + test_tick && git merge --allow-unrelated-histories -m "Coolest" unrelated && + note K && + + echo "Immaterial" >elif && + git add elif && + test_tick && git commit -m "Last" && + note L +' + +FMT='tformat:%P %H | %s' + +check_outcome () { + outcome=$1 + shift + for c in $1 + do + echo "$c" + done >expect && + shift && + param="$*" && + test_expect_$outcome "log $param" ' + git log --pretty="$FMT" --parents $param >out && + unnote >actual <out && + sed -e "s/^.* \([^ ]*\) .*/\1/" >check <actual && + test_cmp expect check + ' +} + +check_result () { + check_outcome success "$@" +} + +check_result 'L K J I H F E D C G B A' --full-history --topo-order +check_result 'L K I H G F E D C B J A' --full-history +check_result 'L K I H G F E D C B J A' --full-history --date-order +check_result 'L K I H G F E D B C J A' --full-history --author-date-order +check_result 'K I H E C B A' --full-history -- file +check_result 'K I H E C B A' --full-history --topo-order -- file +check_result 'K I H E C B A' --full-history --date-order -- file +check_result 'K I H E B C A' --full-history --author-date-order -- file +check_result 'I E C B A' --simplify-merges -- file +check_result 'I E C B A' --simplify-merges --topo-order -- file +check_result 'I E C B A' --simplify-merges --date-order -- file +check_result 'I E B C A' --simplify-merges --author-date-order -- file +check_result 'I B A' -- file +check_result 'I B A' --topo-order -- file +check_result 'I B A' --date-order -- file +check_result 'I B A' --author-date-order -- file +check_result 'H' --first-parent -- another-file +check_result 'H' --first-parent --topo-order -- another-file + +check_result 'L K I H G B A' --first-parent L +check_result 'F E D C' --exclude-first-parent-only F ^L +check_result '' F ^L +check_result 'L K I H G J' L ^F +check_result 'L K I H G B J' --exclude-first-parent-only L ^F +check_result 'L K I H G B' --exclude-first-parent-only --first-parent L ^F + +check_result 'E C B A' --full-history E -- lost +test_expect_success 'full history simplification without parent' ' + printf "%s\n" E C B A >expect && + git log --pretty="$FMT" --full-history E -- lost >out && + unnote >actual <out && + sed -e "s/^.* \([^ ]*\) .*/\1/" >check <actual && + test_cmp expect check +' + +test_expect_success '--full-diff is not affected by --parents' ' + git log -p --pretty="%H" --full-diff -- file >expected && + git log -p --pretty="%H" --full-diff --parents -- file >actual && + test_cmp expected actual +' + +# +# Create a new history to demonstrate the value of --show-pulls +# with respect to the subtleties of simplified history, --full-history, +# and --simplify-merges. +# +# .-A---M-----C--N---O---P +# / / \ \ \/ / / +# I B \ R-'`-Z' / +# \ / \/ / +# \ / /\ / +# `---X--' `---Y--' +# +# This example is explained in Documentation/rev-list-options.txt + +test_expect_success 'setup rebuild repo' ' + rm -rf .git * && + git init && + git switch -c topic && + + echo base >file && + git add file && + test_commit I && + + echo A >file && + git add file && + test_commit A && + + git switch -c branchB I && + echo B >file && + git add file && + test_commit B && + + git switch topic && + test_must_fail git merge -m "M" B && + echo A >file && + echo B >>file && + git add file && + git merge --continue && + note M && + + echo C >other && + git add other && + test_commit C && + + git switch -c branchX I && + echo X >file && + git add file && + test_commit X && + + git switch -c branchR M && + git merge -m R -Xtheirs X && + note R && + + git switch topic && + git merge -m N R && + note N && + + git switch -c branchY M && + echo Y >y && + git add y && + test_commit Y && + + git switch -c branchZ C && + echo Z >z && + git add z && + test_commit Z && + + git switch topic && + git merge -m O Z && + note O && + + git merge -m P Y && + note P +' + +check_result 'X I' -- file +check_result 'N R X I' --show-pulls -- file + +check_result 'P O N R X M B A I' --full-history --topo-order -- file +check_result 'N R X M B A I' --simplify-merges --topo-order --show-pulls -- file +check_result 'R X M B A I' --simplify-merges --topo-order -- file +check_result 'N M A I' --first-parent -- file +check_result 'N M A I' --first-parent --show-pulls -- file + +# --ancestry-path implies --full-history +check_result 'P O N R M' --topo-order \ + --ancestry-path A..HEAD -- file +check_result 'P O N R M' --topo-order \ + --show-pulls \ + --ancestry-path A..HEAD -- file +check_result 'P O N R M' --topo-order \ + --full-history \ + --ancestry-path A..HEAD -- file +check_result 'R M' --topo-order \ + --simplify-merges \ + --ancestry-path A..HEAD -- file +check_result 'N R M' --topo-order \ + --simplify-merges --show-pulls \ + --ancestry-path A..HEAD -- file + +test_expect_success 'log --graph --simplify-merges --show-pulls' ' + cat >expect <<-\EOF && + * N + * R + |\ + | * X + * | M + |\ \ + | * | B + | |/ + * / A + |/ + * I + EOF + git log --graph --pretty="%s" \ + --simplify-merges --show-pulls \ + -- file >actual && + test_cmp expect actual +' + +test_done |