cc9dcdee61
The `--exec <cmd>` is documented as
Append "exec <cmd>" after each line creating a commit in the final
history.
...
If --autosquash is used, "exec" lines will not be appended for the
intermediate commits, and will only appear at the end of each
squash/fixup series.
Unfortunately, it would also add exec commands after non-pick
operations, such as 'no-op', which could be seen for example with
git rebase -i --exec true HEAD
todo_list_add_exec_commands() intent was to insert exec commands after
each logical pick, while trying to consider a chains of fixup and squash
commits to be part of the pick before it. So it would keep an 'insert'
boolean tracking if it had seen a pick or merge, but not write the exec
command until it saw the next non-fixup/squash command. Since that
would make it miss the final exec command, it had some code that would
check whether it still needed to insert one at the end, but instead of a
simple
if (insert)
it had a
if (insert || <condition that is always true>)
That's buggy; as per the docs, we should only add exec commands for
lines that create commits, i.e. only if insert is true. Fix the
conditional.
There was one testcase in the testsuite that we tweak for this change;
it was introduced in 54fd3243da ("rebase -i: reread the todo list if
`exec` touched it", 2017-04-26), and was merely testing that after an
exec had fired that the todo list would be re-read. The test at the
time would have worked given any revision at all, though it would only
work with 'HEAD' as a side-effect of this bug. Since we're fixing this
bug, choose something other than 'HEAD' for that test.
Finally, add a testcase that verifies when we have no commits to pick,
that we get no exec lines in the generated todo list.
Reported-by: Nikita Bobko <nikitabobko@gmail.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
91 lines
2.2 KiB
Bash
Executable File
91 lines
2.2 KiB
Bash
Executable File
#!/bin/sh
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test_description='rebase should reread the todo file if an exec modifies it'
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. ./test-lib.sh
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. "$TEST_DIRECTORY"/lib-rebase.sh
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test_expect_success 'setup' '
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test_commit first file &&
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test_commit second file &&
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test_commit third file
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'
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test_expect_success 'rebase exec modifies rebase-todo' '
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todo=.git/rebase-merge/git-rebase-todo &&
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git rebase HEAD~1 -x "echo exec touch F >>$todo" &&
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test -e F
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'
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test_expect_success 'rebase exec with an empty list does not exec anything' '
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git rebase HEAD -x "true" 2>output &&
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! grep "Executing: true" output
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'
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test_expect_success 'loose object cache vs re-reading todo list' '
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GIT_REBASE_TODO=.git/rebase-merge/git-rebase-todo &&
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export GIT_REBASE_TODO &&
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write_script append-todo.sh <<-\EOS &&
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# For values 5 and 6, this yields SHA-1s with the same first two digits
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echo "pick $(git rev-parse --short \
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$(printf "%s\\n" \
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"tree $EMPTY_TREE" \
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"author A U Thor <author@example.org> $1 +0000" \
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"committer A U Thor <author@example.org> $1 +0000" \
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"" \
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"$1" |
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git hash-object -t commit -w --stdin))" >>$GIT_REBASE_TODO
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shift
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test -z "$*" ||
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echo "exec $0 $*" >>$GIT_REBASE_TODO
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EOS
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git rebase HEAD -x "./append-todo.sh 5 6"
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'
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test_expect_success 'todo is re-read after reword and squash' '
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write_script reword-editor.sh <<-\EOS &&
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GIT_SEQUENCE_EDITOR="echo \"exec echo $(cat file) >>actual\" >>" \
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git rebase --edit-todo
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EOS
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test_write_lines first third >expected &&
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set_fake_editor &&
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GIT_SEQUENCE_EDITOR="$EDITOR" FAKE_LINES="reword 1 squash 2 fixup 3" \
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GIT_EDITOR=./reword-editor.sh git rebase -i --root third &&
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test_cmp expected actual
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'
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test_expect_success 're-reading todo doesnt interfere with revert --edit' '
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git reset --hard third &&
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git revert --edit third second &&
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cat >expect <<-\EOF &&
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Revert "second"
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Revert "third"
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third
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second
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first
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EOF
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git log --format="%s" >actual &&
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test_cmp expect actual
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'
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test_expect_success 're-reading todo doesnt interfere with cherry-pick --edit' '
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git reset --hard first &&
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git cherry-pick --edit second third &&
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cat >expect <<-\EOF &&
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third
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second
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first
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EOF
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git log --format="%s" >actual &&
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test_cmp expect actual
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'
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test_done
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