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# Helper functions used by interactive rebase tests.
# After setting the fake editor with this function, you can
#
# - override the commit message with $FAKE_COMMIT_MESSAGE
# - amend the commit message with $FAKE_COMMIT_AMEND
# - copy the original commit message to a file with $FAKE_MESSAGE_COPY
# - check that non-commit messages have a certain line count with $EXPECT_COUNT
# - check the commit count in the commit message header with $EXPECT_HEADER_COUNT
# - rewrite a rebase -i script as directed by $FAKE_LINES.
# $FAKE_LINES consists of a sequence of words separated by spaces.
# The following word combinations are possible:
#
# "<lineno>" -- add a "pick" line with the SHA1 taken from the
# specified line.
#
# "<cmd> <lineno>" -- add a line with the specified command
# ("pick", "squash", "fixup"|"fixup_-C"|"fixup_-c", "edit", "reword" or "drop")
# and the SHA1 taken from the specified line.
#
# "_" -- add a space, like "fixup_-C" implies "fixup -C" and
# "exec_cmd_with_args" add an "exec cmd with args" line.
#
# "#" -- Add a comment line.
#
# ">" -- Add a blank line.
set_fake_editor () {
write_script fake-editor.sh <<-\EOF
case "$1" in
*/COMMIT_EDITMSG)
test -z "$EXPECT_HEADER_COUNT" ||
test "$EXPECT_HEADER_COUNT" = "$(sed -n '1s/^# This is a combination of \(.*\) commits\./\1/p' < "$1")" ||
exit
test -z "$FAKE_COMMIT_MESSAGE" || echo "$FAKE_COMMIT_MESSAGE" > "$1"
test -z "$FAKE_COMMIT_AMEND" || echo "$FAKE_COMMIT_AMEND" >> "$1"
test -z "$FAKE_MESSAGE_COPY" || cat "$1" >"$FAKE_MESSAGE_COPY"
exit
;;
esac
test -z "$EXPECT_COUNT" ||
test "$EXPECT_COUNT" = $(sed -e '/^#/d' -e '/^$/d' < "$1" | wc -l) ||
exit
test -z "$FAKE_LINES" && exit
grep -v '^#' < "$1" > "$1".tmp
rm -f "$1"
echo 'rebase -i script before editing:'
cat "$1".tmp
action=\&
for line in $FAKE_LINES; do
case $line in
pick|p|squash|s|fixup|f|edit|e|reword|r|drop|d|label|l|reset|r|merge|m)
action="$line";;
exec_*|x_*|break|b)
echo "$line" | sed 's/_/ /g' >> "$1";;
merge_*|fixup_*)
action=$(echo "$line" | sed 's/_/ /g');;
"#")
echo '# comment' >> "$1";;
">")
echo >> "$1";;
bad)
action="badcmd";;
fakesha)
test \& != "$action" || action=pick
echo "$action XXXXXXX False commit" >> "$1"
action=pick;;
*)
sed -n "${line}s/^[a-z][a-z]*/$action/p" < "$1".tmp >> "$1"
action=\&;;
esac
done
echo 'rebase -i script after editing:'
cat "$1"
EOF
test_set_editor "$(pwd)/fake-editor.sh"
}
# After set_cat_todo_editor, rebase -i will write the todo list (ignoring
# blank lines and comments) to stdout, and exit failure (so you should run
# it with test_must_fail). This can be used to verify the expected user
# experience, for todo list changes that do not affect the outcome of
# rebase; or as an extra check in addition to checking the outcome.
set_cat_todo_editor () {
write_script fake-editor.sh <<-\EOF
grep "^[^#]" "$1"
exit 1
EOF
test_set_editor "$(pwd)/fake-editor.sh"
}
# checks that the revisions in "$2" represent a linear range with the
# subjects in "$1"
test_linear_range () {
revlist_merges=$(git rev-list --merges "$2") &&
test -z "$revlist_merges" &&
expected=$1
set -- $(git log --reverse --format=%s "$2")
test "$expected" = "$*"
}
reset_rebase () {
test_might_fail git rebase --abort &&
git reset --hard &&
git clean -f
}
cherry_pick () {
git cherry-pick -n "$2" &&
git commit -m "$1" &&
git tag "$1"
}
revert () {
git revert -n "$2" &&
git commit -m "$1" &&
git tag "$1"
}
make_empty () {
git commit --allow-empty -m "$1" &&
git tag "$1"
}
# Call this (inside test_expect_success) at the end of a test file to
# check that no tests have changed editor related environment
# variables or config settings
test_editor_unchanged () {
# We're only interested in exported variables hence 'sh -c'
sh -c 'cat >actual <<-EOF
EDITOR=$EDITOR
FAKE_COMMIT_AMEND=$FAKE_COMMIT_AMEND
FAKE_COMMIT_MESSAGE=$FAKE_COMMIT_MESSAGE
FAKE_LINES=$FAKE_LINES
GIT_EDITOR=$GIT_EDITOR
GIT_SEQUENCE_EDITOR=$GIT_SEQUENCE_EDITOR
core.editor=$(git config core.editor)
sequence.editor=$(git config sequence.editor)
EOF'
cat >expect <<-\EOF
EDITOR=:
FAKE_COMMIT_AMEND=
FAKE_COMMIT_MESSAGE=
FAKE_LINES=
GIT_EDITOR=
GIT_SEQUENCE_EDITOR=
core.editor=
sequence.editor=
EOF
test_cmp expect actual
}
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