name=
-topic=
+head_from=
diff_opts=
diff_committed_only=yes # will be unset for index/worktree
arg="$1"; shift
case "$arg" in
-i)
- topic='(i)'
+ [ -z "$head_from" ] || die "-i and -w are mutually exclusive"
+ head_from=-i
diff_opts="$diff_opts --cached";
diff_committed_only=;;
-w)
- topic='(w)'
+ [ -z "$head_from" ] || die "-i and -w are mutually exclusive"
+ head_from=-w
diff_committed_only=;;
-*)
echo "Usage: tg [...] patch [-i | -w] [NAME]" >&2
esac
done
+head="$(git symbolic-ref HEAD)"
+head="${head#refs/heads/}"
-[ -n "$name" -a -z "$diff_committed_only" ] &&
- die "-i/-w are mutually exclusive with NAME"
-
-[ -n "$name" ] || name="$(git symbolic-ref HEAD | sed 's#^refs/\(heads\|top-bases\)/##')"
+[ -n "$name" ] ||
+ name="$head"
base_rev="$(git rev-parse --short --verify "refs/top-bases/$name" 2>/dev/null)" ||
die "not a TopGit-controlled branch"
-# if not index/worktree, topic is current branch
-[ -z "$topic" ] && topic="$name"
+if [ -n "$head_from" ] && [ "$name" != "$head" ]; then
+ die "$head_from makes only sense for the current branch"
+fi
setup_pager
-cat_file "$topic:.topmsg"
+cat_file "$name:.topmsg" $head_from
echo
[ -n "$(git grep $diff_opts '^[-]--' ${diff_committed_only:+"$name"} -- ".topmsg")" ] || echo '---'
fi
echo '-- '
-echo "tg: ($base_rev..) $name (depends on: $(cat_file "$topic:.topdeps" | paste -s -d' '))"
+echo "tg: ($base_rev..) $name (depends on: $(cat_file "$name:.topdeps" $head_from | paste -s -d' '))"
branch_contains "$name" "$base_rev" ||
echo "tg: The patch is out-of-date wrt. the base! Run \`$tg update\`."