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-rw-r--r--t/lib-rebase.sh67
1 files changed, 67 insertions, 0 deletions
diff --git a/t/lib-rebase.sh b/t/lib-rebase.sh
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+++ b/t/lib-rebase.sh
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+#!/bin/sh
+
+# 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
+# - 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.
+# $FAKE_LINES consists of a sequence of words separated by spaces.
+# The following word combinations are possible:
+#
+# "<lineno>" -- add a "pick" line with the SHA1 taken from the
+# specified line.
+#
+# "<cmd> <lineno>" -- add a line with the specified command
+# ("squash", "fixup", "edit", or "reword") and the SHA1 taken
+# from the specified line.
+#
+# "#" -- Add a comment line.
+#
+# ">" -- Add a blank line.
+
+set_fake_editor () {
+ echo "#!$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" >> "$1"
+ exit
+ ;;
+esac
+test -z "$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=pick
+for line in $FAKE_LINES; do
+ case $line in
+ squash|fixup|edit|reword)
+ action="$line";;
+ exec*)
+ echo "$line" | sed 's/_/ /g' >> "$1";;
+ "#")
+ echo '# comment' >> "$1";;
+ ">")
+ echo >> "$1";;
+ *)
+ sed -n "${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"
+ chmod a+x fake-editor.sh
+}