# After setting the fake editor with this function, you can
#
-# - override the commit message with $FAKE_COMMIT_MESSAGE,
+# - override the commit message with $FAKE_COMMIT_MESSAGE
# - amend the commit message with $FAKE_COMMIT_AMEND
# - check that non-commit messages have a certain line count with $EXPECT_COUNT
-# - rewrite a rebase -i script with $FAKE_LINES in the form
+# - check the commit count in the commit message header with $EXPECT_HEADER_COUNT
+# - rewrite a rebase -i script as directed by $FAKE_LINES.
+# $FAKE_LINES consists of a sequence of words separated by spaces.
+# The following word combinations are possible:
#
-# "[<lineno1>] [<lineno2>]..."
+# "<lineno>" -- add a "pick" line with the SHA1 taken from the
+# specified line.
#
-# If a line number is prefixed with "squash", "fixup", "edit", or
-# "reword", the respective line's command will be replaced with the
-# specified one.
+# "<cmd> <lineno>" -- add a line with the specified command
+# ("squash", "fixup", "edit", or "reword") and the SHA1 taken
+# from the specified line.
+#
+# "#" -- Add a comment line.
+#
+# ">" -- Add a blank line.
set_fake_editor () {
echo "#!$SHELL_PATH" >fake-editor.sh
cat >> 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" >> "$1"
exit
test -z "$FAKE_LINES" && exit
grep -v '^#' < "$1" > "$1".tmp
rm -f "$1"
+echo 'rebase -i script before editing:'
cat "$1".tmp
action=pick
for line in $FAKE_LINES; do
case $line in
squash|fixup|edit|reword)
action="$line";;
+ "#")
+ echo '# comment' >> "$1";;
+ ">")
+ echo >> "$1";;
*)
- echo sed -n "${line}s/^pick/$action/p"
- sed -n "${line}p" < "$1".tmp
sed -n "${line}s/^pick/$action/p" < "$1".tmp >> "$1"
action=pick;;
esac
done
+echo 'rebase -i script after editing:'
+cat "$1"
EOF
test_set_editor "$(pwd)/fake-editor.sh"