t/lib-rebase.sh

   1 #!/bin/sh
   2
   3 # After setting the fake editor with this function, you can
   4 #
   5 # - override the commit message with $FAKE_COMMIT_MESSAGE,
   6 # - amend the commit message with $FAKE_COMMIT_AMEND
   7 # - check that non-commit messages have a certain line count with $EXPECT_COUNT
   8 # - rewrite a rebase -i script with $FAKE_LINES in the form
   9 #
  10 #       "[<lineno1>] [<lineno2>]..."
  11 #
  12 #   If a line number is prefixed with "squash" or "edit", the respective line's
  13 #   command will be replaced with the specified one.
  14
  15 set_fake_editor () {
  16         echo "#!$SHELL_PATH" >fake-editor.sh
  17         cat >> fake-editor.sh <<\EOF
  18 case "$1" in
  19 */COMMIT_EDITMSG)
  20         test -z "$FAKE_COMMIT_MESSAGE" || echo "$FAKE_COMMIT_MESSAGE" > "$1"
  21         test -z "$FAKE_COMMIT_AMEND" || echo "$FAKE_COMMIT_AMEND" >> "$1"
  22         exit
  23         ;;
  24 esac
  25 test -z "$EXPECT_COUNT" ||
  26         test "$EXPECT_COUNT" = $(sed -e '/^#/d' -e '/^$/d' < "$1" | wc -l) ||
  27         exit
  28 test -z "$FAKE_LINES" && exit
  29 grep -v '^#' < "$1" > "$1".tmp
  30 rm -f "$1"
  31 cat "$1".tmp
  32 action=pick
  33 for line in $FAKE_LINES; do
  34         case $line in
  35         squash|edit)
  36                 action="$line";;
  37         *)
  38                 echo sed -n "${line}s/^pick/$action/p"
  39                 sed -n "${line}p" < "$1".tmp
  40                 sed -n "${line}s/^pick/$action/p" < "$1".tmp >> "$1"
  41                 action=pick;;
  42         esac
  43 done
  44 EOF
  45
  46         test_set_editor "$(pwd)/fake-editor.sh"
  47         chmod a+x fake-editor.sh
  48 }