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 $FAKE_LINES in the form
   9 #
  10 #       "[<lineno1>] [<lineno2>]..."
  11 #
  12 #   If a line number is prefixed with "squash", "fixup", "edit", or
  13 #   "reword", the respective line's command will be replaced with the
  14 #   specified one.
  15
  16 set_fake_editor () {
  17         echo "#!$SHELL_PATH" >fake-editor.sh
  18         cat >> fake-editor.sh <<\EOF
  19 case "$1" in
  20 */COMMIT_EDITMSG)
  21         test -z "$FAKE_COMMIT_MESSAGE" || echo "$FAKE_COMMIT_MESSAGE" > "$1"
  22         test -z "$FAKE_COMMIT_AMEND" || echo "$FAKE_COMMIT_AMEND" >> "$1"
  23         exit
  24         ;;
  25 esac
  26 test -z "$EXPECT_COUNT" ||
  27         test "$EXPECT_COUNT" = $(sed -e '/^#/d' -e '/^$/d' < "$1" | wc -l) ||
  28         exit
  29 test -z "$FAKE_LINES" && exit
  30 grep -v '^#' < "$1" > "$1".tmp
  31 rm -f "$1"
  32 echo 'rebase -i script before editing:'
  33 cat "$1".tmp
  34 action=pick
  35 for line in $FAKE_LINES; do
  36         case $line in
  37         squash|fixup|edit|reword)
  38                 action="$line";;
  39         *)
  40                 sed -n "${line}s/^pick/$action/p" < "$1".tmp >> "$1"
  41                 action=pick;;
  42         esac
  43 done
  44 echo 'rebase -i script after editing:'
  45 cat "$1"
  46 EOF
  47
  48         test_set_editor "$(pwd)/fake-editor.sh"
  49         chmod a+x fake-editor.sh
  50 }