mirror of
https://github.com/git/git
synced 2024-11-05 18:59:29 +00:00
adcc94a0aa
Long time ago at fab47d05 ("merge: force edit and no-ff mode when
merging a tag object", 2011-11-07), "git merge" was made to always
create a merge commit when merging a tag, even when the side branch
being merged is a descendant of the current branch.
This default is good for merges made by upstream maintainers to
integrate work signed by downstream contributors, but will leave
pointless no-ff merges when downstream contributors pull a newer
release tag to make their long-running topic branches catch up with
the upstream. When there is no local work left on the topic, such a
merge should simply fast-forward to the commit pointed at by the
release tag.
Update the default (again) for "git merge" that merges a tag object
to (1) --no-ff (i.e. create a merge commit even when side branch
fast forwards) if the tag being merged is not at its expected place
in refs/tags/ hierarchy and (2) --ff (i.e. allow fast-forward update
when able) otherwise.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
529 lines
10 KiB
Bash
Executable file
529 lines
10 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2006, Junio C Hamano
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#
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test_description='fmt-merge-msg test'
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. ./test-lib.sh
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test_expect_success setup '
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echo one >one &&
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git add one &&
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test_tick &&
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git commit -m "Initial" &&
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git clone . remote &&
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echo uno >one &&
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echo dos >two &&
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git add two &&
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test_tick &&
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git commit -a -m "Second" &&
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git checkout -b left &&
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echo "c1" >one &&
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test_tick &&
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git commit -a -m "Common #1" &&
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echo "c2" >one &&
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test_tick &&
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git commit -a -m "Common #2" &&
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git branch right &&
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echo "l3" >two &&
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test_tick &&
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GIT_COMMITTER_NAME="Another Committer" \
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GIT_AUTHOR_NAME="Another Author" git commit -a -m "Left #3" &&
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echo "l4" >two &&
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test_tick &&
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GIT_COMMITTER_NAME="Another Committer" \
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GIT_AUTHOR_NAME="Another Author" git commit -a -m "Left #4" &&
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echo "l5" >two &&
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test_tick &&
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GIT_COMMITTER_NAME="Another Committer" \
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GIT_AUTHOR_NAME="Another Author" git commit -a -m "Left #5" &&
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git tag tag-l5 &&
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git checkout right &&
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echo "r3" >three &&
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git add three &&
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test_tick &&
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git commit -a -m "Right #3" &&
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git tag tag-r3 &&
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echo "r4" >three &&
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test_tick &&
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git commit -a -m "Right #4" &&
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echo "r5" >three &&
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test_tick &&
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git commit -a -m "Right #5" &&
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git checkout -b long &&
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i=0 &&
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while test $i -lt 30
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do
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test_commit $i one &&
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i=$(($i+1))
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done &&
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git show-branch &&
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apos="'\''"
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'
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test_expect_success 'message for merging local branch' '
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echo "Merge branch ${apos}left${apos}" >expected &&
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git checkout master &&
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git fetch . left &&
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git fmt-merge-msg <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success 'message for merging external branch' '
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echo "Merge branch ${apos}left${apos} of $(pwd)" >expected &&
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git checkout master &&
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git fetch "$(pwd)" left &&
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git fmt-merge-msg <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success '[merge] summary/log configuration' '
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cat >expected <<-EOF &&
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Merge branch ${apos}left${apos}
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# By Another Author (3) and A U Thor (2)
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# Via Another Committer
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* left:
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Left #5
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Left #4
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Left #3
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Common #2
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Common #1
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EOF
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test_config merge.log true &&
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test_unconfig merge.summary &&
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git checkout master &&
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test_tick &&
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git fetch . left &&
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git fmt-merge-msg <.git/FETCH_HEAD >actual1 &&
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test_unconfig merge.log &&
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test_config merge.summary true &&
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git checkout master &&
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test_tick &&
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git fetch . left &&
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git fmt-merge-msg <.git/FETCH_HEAD >actual2 &&
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test_cmp expected actual1 &&
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test_cmp expected actual2
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'
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test_expect_success 'setup FETCH_HEAD' '
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git checkout master &&
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test_tick &&
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git fetch . left
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'
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test_expect_success 'merge.log=3 limits shortlog length' '
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cat >expected <<-EOF &&
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Merge branch ${apos}left${apos}
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# By Another Author (3) and A U Thor (2)
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# Via Another Committer
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* left: (5 commits)
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Left #5
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Left #4
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Left #3
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...
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EOF
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git -c merge.log=3 fmt-merge-msg <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success 'merge.log=5 shows all 5 commits' '
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cat >expected <<-EOF &&
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Merge branch ${apos}left${apos}
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# By Another Author (3) and A U Thor (2)
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# Via Another Committer
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* left:
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Left #5
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Left #4
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Left #3
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Common #2
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Common #1
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EOF
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git -c merge.log=5 fmt-merge-msg <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success '--log=5 with custom comment character' '
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cat >expected <<-EOF &&
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Merge branch ${apos}left${apos}
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x By Another Author (3) and A U Thor (2)
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x Via Another Committer
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* left:
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Left #5
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Left #4
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Left #3
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Common #2
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Common #1
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EOF
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git -c core.commentchar="x" fmt-merge-msg --log=5 <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success 'merge.log=0 disables shortlog' '
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echo "Merge branch ${apos}left${apos}" >expected &&
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git -c merge.log=0 fmt-merge-msg <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success '--log=3 limits shortlog length' '
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cat >expected <<-EOF &&
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Merge branch ${apos}left${apos}
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# By Another Author (3) and A U Thor (2)
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# Via Another Committer
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* left: (5 commits)
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Left #5
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Left #4
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Left #3
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...
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EOF
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git fmt-merge-msg --log=3 <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success '--log=5 shows all 5 commits' '
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cat >expected <<-EOF &&
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Merge branch ${apos}left${apos}
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# By Another Author (3) and A U Thor (2)
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# Via Another Committer
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* left:
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Left #5
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Left #4
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Left #3
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Common #2
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Common #1
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EOF
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git fmt-merge-msg --log=5 <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success '--no-log disables shortlog' '
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echo "Merge branch ${apos}left${apos}" >expected &&
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git fmt-merge-msg --no-log <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success '--log=0 disables shortlog' '
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echo "Merge branch ${apos}left${apos}" >expected &&
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git fmt-merge-msg --no-log <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success 'fmt-merge-msg -m' '
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echo "Sync with left" >expected &&
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cat >expected.log <<-EOF &&
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Sync with left
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# By Another Author (3) and A U Thor (2)
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# Via Another Committer
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* ${apos}left${apos} of $(pwd):
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Left #5
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Left #4
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Left #3
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Common #2
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Common #1
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EOF
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test_unconfig merge.log &&
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test_unconfig merge.summary &&
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git checkout master &&
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git fetch "$(pwd)" left &&
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git fmt-merge-msg -m "Sync with left" <.git/FETCH_HEAD >actual &&
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git fmt-merge-msg --log -m "Sync with left" \
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<.git/FETCH_HEAD >actual.log &&
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test_config merge.log true &&
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git fmt-merge-msg -m "Sync with left" \
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<.git/FETCH_HEAD >actual.log-config &&
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git fmt-merge-msg --no-log -m "Sync with left" \
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<.git/FETCH_HEAD >actual.nolog &&
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test_cmp expected actual &&
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test_cmp expected.log actual.log &&
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test_cmp expected.log actual.log-config &&
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test_cmp expected actual.nolog
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'
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test_expect_success 'setup: expected shortlog for two branches' '
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cat >expected <<-EOF
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Merge branches ${apos}left${apos} and ${apos}right${apos}
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# By Another Author (3) and A U Thor (2)
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# Via Another Committer
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* left:
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Left #5
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Left #4
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Left #3
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Common #2
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Common #1
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* right:
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Right #5
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Right #4
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Right #3
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Common #2
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Common #1
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EOF
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'
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test_expect_success 'shortlog for two branches' '
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test_config merge.log true &&
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test_unconfig merge.summary &&
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git checkout master &&
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test_tick &&
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git fetch . left right &&
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git fmt-merge-msg <.git/FETCH_HEAD >actual1 &&
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test_unconfig merge.log &&
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test_config merge.summary true &&
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git checkout master &&
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test_tick &&
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git fetch . left right &&
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git fmt-merge-msg <.git/FETCH_HEAD >actual2 &&
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test_config merge.log yes &&
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test_unconfig merge.summary &&
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git checkout master &&
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test_tick &&
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git fetch . left right &&
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git fmt-merge-msg <.git/FETCH_HEAD >actual3 &&
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test_unconfig merge.log &&
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test_config merge.summary yes &&
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git checkout master &&
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test_tick &&
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git fetch . left right &&
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git fmt-merge-msg <.git/FETCH_HEAD >actual4 &&
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test_cmp expected actual1 &&
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test_cmp expected actual2 &&
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test_cmp expected actual3 &&
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test_cmp expected actual4
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'
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test_expect_success 'merge-msg -F' '
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test_unconfig merge.log &&
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test_config merge.summary yes &&
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git checkout master &&
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test_tick &&
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git fetch . left right &&
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git fmt-merge-msg -F .git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success 'merge-msg -F in subdirectory' '
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test_unconfig merge.log &&
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test_config merge.summary yes &&
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git checkout master &&
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test_tick &&
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git fetch . left right &&
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mkdir sub &&
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cp .git/FETCH_HEAD sub/FETCH_HEAD &&
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(
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cd sub &&
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git fmt-merge-msg -F FETCH_HEAD >../actual
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) &&
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test_cmp expected actual
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'
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test_expect_success 'merge-msg with nothing to merge' '
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test_unconfig merge.log &&
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test_config merge.summary yes &&
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>empty &&
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(
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cd remote &&
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git checkout -b unrelated &&
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test_tick &&
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git fetch origin &&
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git fmt-merge-msg <.git/FETCH_HEAD >../actual
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) &&
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test_cmp empty actual
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'
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test_expect_success 'merge-msg tag' '
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cat >expected <<-EOF &&
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Merge tag ${apos}tag-r3${apos}
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* tag ${apos}tag-r3${apos}:
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Right #3
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Common #2
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Common #1
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EOF
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test_unconfig merge.log &&
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test_config merge.summary yes &&
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git checkout master &&
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test_tick &&
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git fetch . tag tag-r3 &&
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git fmt-merge-msg <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success 'merge-msg two tags' '
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cat >expected <<-EOF &&
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Merge tags ${apos}tag-r3${apos} and ${apos}tag-l5${apos}
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* tag ${apos}tag-r3${apos}:
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Right #3
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Common #2
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Common #1
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# By Another Author (3) and A U Thor (2)
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# Via Another Committer
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* tag ${apos}tag-l5${apos}:
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Left #5
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Left #4
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Left #3
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Common #2
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Common #1
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EOF
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test_unconfig merge.log &&
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test_config merge.summary yes &&
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git checkout master &&
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test_tick &&
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git fetch . tag tag-r3 tag tag-l5 &&
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git fmt-merge-msg <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success 'merge-msg tag and branch' '
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cat >expected <<-EOF &&
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Merge branch ${apos}left${apos}, tag ${apos}tag-r3${apos}
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* tag ${apos}tag-r3${apos}:
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Right #3
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Common #2
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Common #1
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# By Another Author (3) and A U Thor (2)
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# Via Another Committer
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* left:
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Left #5
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Left #4
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Left #3
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Common #2
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Common #1
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EOF
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test_unconfig merge.log &&
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test_config merge.summary yes &&
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git checkout master &&
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test_tick &&
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git fetch . tag tag-r3 left &&
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git fmt-merge-msg <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success 'merge-msg lots of commits' '
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{
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cat <<-EOF &&
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Merge branch ${apos}long${apos}
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* long: (35 commits)
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EOF
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i=29 &&
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while test $i -gt 9
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do
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echo " $i" &&
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i=$(($i-1))
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done &&
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echo " ..."
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} >expected &&
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test_config merge.summary yes &&
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git checkout master &&
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test_tick &&
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git fetch . long &&
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git fmt-merge-msg <.git/FETCH_HEAD >actual &&
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test_cmp expected actual
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'
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test_expect_success 'merge-msg with "merging" an annotated tag' '
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test_config merge.log true &&
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git checkout master^0 &&
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git commit --allow-empty -m "One step ahead" &&
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git tag -a -m "An annotated one" annote HEAD &&
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git checkout master &&
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git fetch . annote &&
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git fmt-merge-msg <.git/FETCH_HEAD >actual &&
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{
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cat <<-\EOF
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Merge tag '\''annote'\''
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An annotated one
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* tag '\''annote'\'':
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One step ahead
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EOF
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} >expected &&
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test_cmp expected actual &&
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test_when_finished "git reset --hard" &&
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annote=$(git rev-parse annote) &&
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git merge --no-commit --no-ff $annote &&
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{
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cat <<-EOF
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Merge tag '\''$annote'\''
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An annotated one
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* tag '\''$annote'\'':
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One step ahead
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EOF
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} >expected &&
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test_cmp expected .git/MERGE_MSG
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'
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test_done
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