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| | #!/bin/sh
test_description='merge simplification'
. ./test-lib.sh
note () {
git tag "$1"
}
unnote () {
git name-rev --tags --stdin | sed -e "s|$OID_REGEX (tags/\([^)]*\)) |\1 |g"
}
#
# Create a test repo with interesting commit graph:
#
# A--B----------G--H--I--K--L
# \ \ / /
# \ \ / /
# C------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 master &&
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" master &&
>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 master &&
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 master &&
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 |
unnote >actual &&
sed -e "s/^.* \([^ ]*\) .*/\1/" >check <actual &&
test_cmp expect check
'
}
check_result () {
check_outcome success "$@"
}
check_result 'L K J I H F E D C G B A' --full-history --topo-order
check_result 'L K I H G F E D C B J A' --full-history
check_result 'L K I H G F E D C B J A' --full-history --date-order
check_result 'L K I H G F E D B C J A' --full-history --author-date-order
check_result 'K I H E C B A' --full-history -- file
check_result 'K I H E C B A' --full-history --topo-order -- file
check_result 'K I H E C B A' --full-history --date-order -- file
check_result 'K I H E B C A' --full-history --author-date-order -- file
check_result 'I E C B A' --simplify-merges -- file
check_result 'I E C B A' --simplify-merges --topo-order -- file
check_result 'I E C B A' --simplify-merges --date-order -- file
check_result 'I E B C A' --simplify-merges --author-date-order -- file
check_result 'I B A' -- file
check_result 'I B A' --topo-order -- file
check_result 'I B A' --date-order -- file
check_result 'I B A' --author-date-order -- file
check_result 'H' --first-parent -- another-file
check_result 'H' --first-parent --topo-order -- another-file
check_result 'E C B A' --full-history E -- lost
test_expect_success 'full history simplification without parent' '
printf "%s\n" E C B A >expect &&
git log --pretty="$FMT" --full-history E -- lost |
unnote >actual &&
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
'
#
# Modify the test repo to add a merge whose first parent is not TREESAME
# but whose second parent is TREESAME
#
# A--B----------G--H--I--K--L--N
# \ \ / / /
# \ \ / / /
# C------E---F J /
# \ \_/ /
# \ /
# M-----------------
test_expect_success 'expand graph' '
git switch -c branchM C &&
echo "new data" >file &&
git add file &&
test_tick &&
test_commit M &&
git checkout master &&
git merge -Xtheirs branchM -m "N" &&
note N
'
check_result 'M C A' -- file
check_result 'N M C A' --include-diversions -- file
check_result 'N M L K J I H F E D C G B A' --full-history --topo-order
check_result 'N M L K I H G F E D C B J A' --full-history
check_result 'N M L K I H G F E D C B J A' --full-history --date-order
check_result 'N M L K I H G F E D B C J A' --full-history --author-date-order
check_result 'N M K I H E C B A' --full-history -- file
check_result 'N M K I H E C B A' --full-history --topo-order -- file
check_result 'N M K I H E C B A' --full-history --date-order -- file
check_result 'N M K I H E B C A' --full-history --author-date-order -- file
check_result 'N M I E C B A' --simplify-merges -- file
check_result 'N M I E C B A' --simplify-merges --topo-order -- file
check_result 'N M I E C B A' --simplify-merges --date-order -- file
check_result 'N M I E B C A' --simplify-merges --author-date-order -- file
check_result 'M C A' --topo-order -- file
check_result 'M C A' --date-order -- file
check_result 'M C A' --author-date-order -- file
check_result 'H' --first-parent -- another-file
check_result 'H' --first-parent --topo-order -- another-file
test_done
|