X-Git-Url: https://git.madduck.net/code/myrepos.git/blobdiff_plain/36ce226caca56a82e8c56426c5bb9bfc47e9e642..eb0532270369618a99e2495c41dab98315f73d11:/mr

diff --git a/mr b/mr
index b268027..1b73639 100755
--- a/mr
+++ b/mr
@@ -931,10 +931,17 @@ ls = list
 [DEFAULT]
 order = 10
 lib =
+	PWD="$pwd"
 	error() {
 		echo "mr: $@" >&2
 		exit 1
 	}
+	warning() {
+		echo "mr (warning): $@" >&2
+	}
+	info() {
+		echo "mr: $@" >&2
+	}
 	hours_since() {
 		if [ -z "$1" ] || [ -z "$2" ]; then
 			error "mr: usage: hours_since action num"
@@ -956,171 +963,206 @@ lib =
 			exit 1
 		fi
 	}
-
-update =
-	if [ -d "$MR_REPO"/.svn ]; then
-		svn update "$@"
-	elif [ -d "$MR_REPO"/.git ] || [ "${MR_REPO%.git/}" != "$MR_REPO" ]; then
-		# this is a bug in git-fetch, which requires GIT_DIR set
-		[ "${MR_REPO%.git/}" != "$MR_REPO" ] && GIT_DIR="$MR_REPO" && export GIT_DIR
-		if [ -z "$@" ]; then
-			git pull -t origin master
+	get_git_repo_type()
+	{
+		if [ -d "$1"/.git ] && [ -d "$1"/.git/refs/heads ] &&
+			[ -d "$1"/.git/objects ] && [ -f "$1"/.git/config ];
+			then
+			echo non-bare
+		elif [ -d "$1"/refs/heads ] && [ -d "$1"/refs/tags ] &&
+			[ -d "$1"/objects ] && [ -f "$1"/config ]; then
+			local bare
+			bare="$(GIT_CONFIG="$1"/config git-config --get core.bare)"
+			case "$bare" in
+				true) echo bare;;
+				false) echo fake-bare;;
+				*) return 255;;
+			esac
 		else
-			git pull "$@"
+			return 1
 		fi
-		unset GIT_DIR
-	elif [ -d "$MR_REPO"/.bzr ]; then
-		bzr merge "$@"
-	elif [ -d "$MR_REPO"/CVS ]; then
-		cvs update "$@"
-	elif [ -d "$MR_REPO"/.hg ]; then
-		hg pull "$@" && hg update "$@"
-	elif [ -d "$MR_REPO"/_darcs ]; then
-		darcs pull -a "$@"
-	else
-		error "unknown repo type"
-	fi
+	}
+	is_git_repo() {
+		get_git_repo_type "$1" >/dev/null
+	}
+	get_repo_type() {
+		if [ -d "$1"/.svn ]; then
+			echo svn
+		elif is_git_repo "$1"; then
+			echo git
+		elif [ -d "$1"/.bzr ]; then
+			echo bzr
+		elif [ -d "$1"/CVS ]; then
+			echo CVS
+		elif [ -d "$1"/.hg ]; then
+			echo hg
+		elif [ -d "$1"/_darcs ]; then
+			echo darcs
+		else
+			echo unknown
+		fi
+	}
+
+update =
+	case "$(get_repo_type "$MR_REPO")" in
+	svn) svn update "$@";;
+	git)
+		# all this is because of a bug in git-fetch, which requires GIT_DIR set
+		local git_dir_override; git_dir_override=.git
+		case "$(get_git_repo_type "$MR_REPO")" in
+			fake-bare) git_dir_override="$MR_REPO";;
+		esac
+		args="$@"
+		[ -z "$args" ] && args="-t origin master"
+		eval GIT_DIR="$git_dir_override" git pull "$args"
+		;;
+	bzr) bzr merge "$@";;
+	CVS) cvs update "$@";;
+	hg) hg pull "$@" && hg update "$@";;
+	darcs) darcs pull -a "$@";;
+	*) error "unknown repo type";;
+	esac
+
 status =
-	if [ -d "$MR_REPO"/.svn ]; then
-		svn status "$@"
-	elif [ -d "$MR_REPO"/.git ] || [ "${MR_REPO%.git/}" != "$MR_REPO" ]; then
-		git status "$@" || true
-	elif [ -d "$MR_REPO"/.bzr ]; then
-		bzr status "$@"
-	elif [ -d "$MR_REPO"/CVS ]; then
-		cvs status "$@"
-	elif [ -d "$MR_REPO"/.hg ]; then
-		hg status "$@"
-	elif [ -d "$MR_REPO"/_darcs ]; then
-		darcs whatsnew -ls "$@"
-	else
-		error "unknown repo type"
-	fi
+	case "$(get_repo_type "$MR_REPO")" in
+	svn) svn status "$@";;
+	git) git status "$@" || :;;
+	bzr) bzr status "$@";;
+	CVS) cvs status "$@";;
+	hg) hg status "$@";;
+	darcs) darcs whatsnew -ls "$@";;
+	*) error "unknown repo type";;
+	esac
+
 commit =
-	if [ -d "$MR_REPO"/.svn ]; then
-		svn commit "$@"
-	elif [ -d "$MR_REPO"/.git ]; then
+	case "$(get_repo_type "$MR_REPO")" in
+	svn) svn commit "$@";;
+	git)
+		case "$(get_git_repo_type "$MR_REPO")" in
+			bare) error "cannot commit to bare git repositories";;
+			fake-bare) error "commit does not work for fake bare git repositories (yet).";;
+		esac
 		git commit -a "$@" && git push --all
-	elif [ "${MR_REPO%.git/}" != "$MR_REPO" ]; then
-		error "commit does not work for fake bare git repositories (yet)."
-	elif [ -d "$MR_REPO"/.bzr ]; then
-		bzr commit "$@" && bzr push
-	elif [ -d "$MR_REPO"/CVS ]; then
-		cvs commit "$@"
-	elif [ -d "$MR_REPO"/.hg ]; then
-		hg commit -m "$@" && hg push
-	elif [ -d "$MR_REPO"/_darcs ]; then
-		darcs commit -a -m "$@" && darcs push -a
-	else
-		error "unknown repo type"
-	fi
+		;;
+	bzr) bzr commit "$@" && bzr push;;
+	CVS) cvs commit "$@";;
+	hg) hg commit -m "$@" && hg push;;
+	darcs) darcs commit -a -m "$@" && darcs push -a;;
+	*) error "unknown repo type";;
+	esac
+
 diff =
-	if [ -d "$MR_REPO"/.svn ]; then
-		svn diff "$@"
-	elif [ -d "$MR_REPO"/.git ]; then
+	case "$(get_repo_type "$MR_REPO")" in
+	svn) svn diff "$@";;
+	git)
+		case "$(get_git_repo_type "$MR_REPO")" in
+			bare) error "cannot diff in bare git repositories";;
+			fake-bare) error "diff does not work for fake bare git repositories (yet).";;
+		esac
 		git diff "$@"
-	elif [ "${MR_REPO%.git/}" != "$MR_REPO" ]; then
-		error "commit does not work for fake bare git repositories (yet)."
-	elif [ -d "$MR_REPO"/.bzr ]; then
-		bzr diff "$@"
-	elif [ -d "$MR_REPO"/CVS ]; then
-		cvs diff "$@"
-	elif [ -d "$MR_REPO"/.hg ]; then
-		hg diff "$@"
-	elif [ -d "$MR_REPO"/_darcs ]; then
-		darcs diff "$@"
-	else
-		error "unknown repo type"
-	fi
+		;;
+	bzr) bzr diff "$@";;
+	CVS) cvs diff "$@";;
+	hg) hg diff "$@";;
+	darcs) darcs diff "$@";;
+	*) error "unknown repo type";;
+	esac
+
 log =
-	if [ -d "$MR_REPO"/.svn ]; then
-		svn log"$@"
-	elif [ -d "$MR_REPO"/.git ] || [ "${MR_REPO%.git/}" != "$MR_REPO" ]; then
-		git log "$@"
-	elif [ -d "$MR_REPO"/.bzr ]; then
-		bzr log "$@"
-	elif [ -d "$MR_REPO"/CVS ]; then
-		cvs log "$@"
-	elif [ -d "$MR_REPO"/.hg ]; then
-		hg log "$@"
-	elif [ -d "$MR_REPO"/_darcs ]; then
-		darcs changes "$@"
-	else
-		error "unknown repo type"
-	fi
+	case "$(get_repo_type "$MR_REPO")" in
+	svn) svn log"$@";;
+	git) git log "$@";;
+	bzr) bzr log "$@";;
+	CVS) cvs log "$@";;
+	hg) hg log "$@";;
+	darcs) darcs changes "$@";;
+	*) error "unknown repo type";;
+	esac
+
 register =
 	if [ -n "$1" ]; then
 		cd "$1"
 	fi
-	basedir="$(basename $(pwd))"
-	if [ -d .svn ]; then
+	basedir="${PWD##*/}"
+	case "$(get_repo_type .)" in
+	svn)
 		url=$(LANG=C svn info . | grep -i ^URL: | cut -d ' ' -f 2)
 		if [ -z "$url" ]; then
 			error "cannot determine svn url"
 		fi
 		echo "Registering svn url: $url in $MR_CONFIG"
-		mr -c "$MR_CONFIG" config "$(pwd)" checkout="svn co $url $basedir"
-	elif [ -d .git ] || [ "${basedir%.git}" != "$basedir" ]; then
-		GIT_CONFIG=.git/config
-		[ ! -f $GIT_CONFIG ] && GIT_CONFIG=config
-		export GIT_CONFIG
-		url="$(LANG=C git-config --get remote.origin.url)"
+		mr -c "$MR_CONFIG" config "$PWD" checkout="svn co $url $basedir"
+		;;
+	git)
+		local repo_type; repo_type="$(get_git_repo_type .)"
+		local config;
+		case "$repo_type" in
+			non-bare) config=.git/config;;
+			bare|fake-bare) config=config;;
+		esac
+		url="$(LANG=C GIT_CONFIG="$config" git-config --get remote.origin.url)" || :
 		if [ -z "$url" ]; then
 			error "cannot determine git url"
 		fi
-		if [ $GIT_CONFIG = config ]; then
-			# this seems like a bare repo as it has no worktree.
-			# mr needs a worktree and cannot work with bare
-			# repositories, so ensure that it's "fake bare" and
-			# has a worktree configured.
-			case "$(git-config --get core.bare)" in
-				true) error "cannot register a bare git repository";;
-			esac
-			GIT_WORK_TREE="$(git-config --get core.worktree)" || :
-			case "$GIT_WORK_TREE" in
-				'') error "cannot register a fake bare git repository without core.worktree";;
-				*)
-					if [ ! -d "$GIT_WORK_TREE" ]; then
-						error "git worktree $GIT_WORK_TREE does not exist"
-					fi;;
-			esac
-			suffix=" (with worktree $GIT_WORK_TREE)"
-			mr -c "$MR_CONFIG" config "$(pwd)" \
-				lib="GIT_WORK_TREE=$GIT_WORK_TREE; export GIT_WORK_TREE"
-			unset GIT_WORK_TREE
-		fi
+		set -x
+		local clone_opts add_cmd work_tree suffix
+		case "$repo_type" in
+			fake-bare)
+				# this seems like a fake bare repo and needs a worktree
+				work_tree="$(git-config --get core.worktree)" || :
+				work_tree="${work_tree%%/}/"
+				if [ ! -d "$work_tree" ]; then
+					error "git worktree '$work_tree' does not exist"
+				fi
+				clone_opts=" --no-checkout"
+				add_cmd="$add_cmd && cd $basedir"
+				add_cmd="$add_cmd && git read-tree HEAD"
+				add_cmd="$add_cmd && git checkout-index -a --prefix='$work_tree' || :"
+				add_cmd="$add_cmd; git config core.worktree '$work_tree'"
+				add_cmd="$add_cmd && mv .git/* . && rmdir .git"
+				suffix=" (with worktree $work_tree)"
+				;;
+			bare)
+				clone_opts=" --bare"
+				suffix=" (bare repository)"
+				;;
+		esac
 		echo "Registering git url: $url in $MR_CONFIG${suffix:-}"
-		unset GIT_CONFIG
-		mr -c "$MR_CONFIG" config "$(pwd)" checkout="git clone $url $basedir"
-	elif [ -d .bzr ]; then
+		mr -c "$MR_CONFIG" config "$PWD" checkout="git clone${clone_opts:-} $url $basedir${add_cmd:-}"
+		;;
+	bzr)
 		url=$(cat .bzr/branch/parent)
 		if [ -z "$url" ]; then
 			error "cannot determine bzr url"
 		fi
 		echo "Registering bzr url: $url in $MR_CONFIG"
-		mr -c "$MR_CONFIG" config "$(pwd)" checkout="bzr clone $url $basedir"
-	elif [ -d CVS ]; then
+		mr -c "$MR_CONFIG" config "$PWD" checkout="bzr clone $url $basedir"
+		;;
+	CVS)
 		repo=$(cat CVS/Repository)
 		root=$(cat CVS/Root)
 		if [ -z "$root" ]; then
 			error "cannot determine cvs root"
 		fi
 		echo "Registering cvs repository $repo at root $root"
-		mr -c "$MR_CONFIG" config "$(pwd)" \
+		mr -c "$MR_CONFIG" config "$PWD" \
 			checkout="cvs -d '$root' co -d $basedir $repo"
-	elif [ -d .hg ]; then
+		;;
+	hg)
 		url=$(hg showconfig paths.default)
 		echo "Registering mercurial repo url: $url in $MR_CONFIG"
-		mr -c "$MR_CONFIG" config "$(pwd)" \
+		mr -c "$MR_CONFIG" config "$PWD" \
 			checkout="hg clone $url $basedir"
-	elif [ -d _darcs ]; then
+		;;
+	darcs)
 		url=$(cat _darcs/prefs/defaultrepo)
 		echo "Registering darcs repository $url in $MR_CONFIG"
-		mr -c "$MR_CONFIG" config "$(pwd)" \
+		mr -c "$MR_CONFIG" config "$PWD" \
 			checkout="darcs get $url $basedir"
-	else
-		error "unable to register this repo type"
-	fi
+		;;
+	*) error "unable to register this repo type";;
+	esac
+
 help =
 	if [ ! -e "$MR_PATH" ]; then
 		error "cannot find program path"