tg-patch.sh

   1 #!/bin/sh
   2 # TopGit - A different patch queue manager
   3 # (c) Petr Baudis <pasky@suse.cz>  2008
   4 # GPLv2
   5
   6 name=
   7
   8
   9 ## Parse options
  10
  11 while [ -n "$1" ]; do
  12         arg="$1"; shift
  13         case "$arg" in
  14         -*)
  15                 echo "Usage: tg [...] patch [NAME]" >&2
  16                 exit 1;;
  17         *)
  18                 [ -z "$name" ] || die "name already specified ($name)"
  19                 name="$arg";;
  20         esac
  21 done
  22
  23 [ -n "$name" ] || name="$(git symbolic-ref HEAD | sed 's#^refs/heads/##')"
  24 base_rev="$(git rev-parse --short --verify "refs/top-bases/$name" 2>/dev/null)" ||
  25         die "not a TopGit-controlled branch"
  26
  27 git cat-file blob "$name:.topmsg"
  28 echo
  29 [ -n "$(git grep '^[-]--' "$name" -- ".topmsg")" ] || echo '---'
  30
  31 # Evil obnoxious hack to work around the lack of git diff --exclude
  32 git_is_stupid="$(mktemp -t tg-patch-changes.XXXXXX)"
  33 git diff-tree --name-only "$base_rev" "$name" |
  34         fgrep -vx ".topdeps" |
  35         fgrep -vx ".topmsg" >"$git_is_stupid" || : # fgrep likes to fail randomly?
  36 if [ -s "$git_is_stupid" ]; then
  37         cat "$git_is_stupid" | xargs git diff --patch-with-stat "$base_rev" "$name" --
  38 else
  39         echo "No changes."
  40 fi
  41 rm "$git_is_stupid"
  42
  43 echo '-- '
  44 echo "tg: ($base_rev..) $name (depends on: $(git cat-file blob "$name:.topdeps" | paste -s -d' '))"
  45 branch_contains "$name" "$base_rev" ||
  46         echo "tg: The patch is out-of-date wrt. the base! Run \`$tg update\`."