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-rw-r--r--t/lib-rebase.sh48
1 files changed, 48 insertions, 0 deletions
diff --git a/t/lib-rebase.sh b/t/lib-rebase.sh
new file mode 100644
index 000000000..260a23193
--- /dev/null
+++ b/t/lib-rebase.sh
@@ -0,0 +1,48 @@
+#!/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
+# - rewrite a rebase -i script with $FAKE_LINES in the form
+#
+# "[<lineno1>] [<lineno2>]..."
+#
+# If a line number is prefixed with "squash" or "edit", the respective line's
+# command will be replaced with the specified one.
+
+set_fake_editor () {
+ echo "#!$SHELL_PATH" >fake-editor.sh
+ cat >> fake-editor.sh <<\EOF
+case "$1" in
+*/COMMIT_EDITMSG)
+ test -z "$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"
+cat "$1".tmp
+action=pick
+for line in $FAKE_LINES; do
+ case $line in
+ squash|edit)
+ action="$line";;
+ *)
+ echo sed -n "${line}s/^pick/$action/p"
+ sed -n "${line}p" < "$1".tmp
+ sed -n "${line}s/^pick/$action/p" < "$1".tmp >> "$1"
+ action=pick;;
+ esac
+done
+EOF
+
+ test_set_editor "$(pwd)/fake-editor.sh"
+ chmod a+x fake-editor.sh
+}