git-repo

1 files changed, 221 insertions, 0 deletions

diff --git a/git-repo b/git-repo
new file mode 100755
index 0000000..8bded4f
--- /dev/null
+++ b/git-repo
@@ -0,0 +1,221 @@
+#!/usr/bin/env bash
+BASEDIR=$HOME/git
+
+C_bg_green=$(echo -e "\e[42m")
+C_bg_magenta=$(echo -e "\e[45m")
+C_bg_default=$(echo -e "\e[49m")
+C_bg_lblue=$(echo -e "\e[104m")
+ 
+_getent() {
+        local db=$1
+        local key=$2
+        getent $db $key | cut -d ':' -f 1
+}
+
+_list_repo_dirs() {
+        find "$1" -maxdepth 6 -type d -path "/home/*/git/*" -not -path '*.git/*' -name '*.git' 2>/dev/null
+}
+
+do_list() {
+	if [ -n "$1" ]; then
+		local root_path=$(readlink -f "$1")
+	else
+		local root_path=/home
+	fi
+        echo -n "Working.. listing repositories under $root_path"
+        for repo_path in $(_list_repo_dirs $root_path | sort); do
+                echo -ne "\r" # to remove working
+		eval $(stat -f 'local repo_path_uid=%u repo_path_gid=%g repo_path_mode=%Lp' "$repo_path")
+                if [ "$repo_path_uid" != "$UID" ]; then
+                        # so there must be a matching gid
+                        local pass=false
+                        for user_gid in $(id -G); do
+                        	if [ "$repo_path_gid" == "$user_gid" ]; then
+                        		pass=true
+                        	fi
+                        done
+                        if ! $pass; then
+                        	continue # skip that repo since uid and gids don't match
+                        fi
+
+                fi
+
+                # and is it marked as shared ?
+                local repo_git_shared=$(GIT_DIR="$repo_path" git config --get core.sharedrepository)
+
+                local repo_name="~${repo_path#/home/}"
+                local shortdesc=$(cut -c 1-40 < "$repo_path/description")
+                if [ $(( 0$repo_path_mode & 07 )) -gt 0 ]; then # public
+                        local shared="($C_bg_magenta$repo_path_mode$C_bg_default git.shared=${repo_git_shared} gid=$repo_path_gid/$(_getent group $repo_path_gid))"
+                elif [ $(( 0$repo_path_mode & 070 )) -gt 0 ]; then # shared
+                        local shared="($C_bg_lblue$repo_path_mode$C_bg_default git.shared=${repo_git_shared} gid=$repo_path_gid/$(_getent group $repo_path_gid))"
+                else
+                        local shared="($C_bg_green$repo_path_mode$C_bg_default)"
+                fi
+
+                printf "%-60s %s (%s)\n" "$repo_name" "$shared" "$shortdesc"
+        done
+}
+
+_create_repo() {
+	local label=$1
+	local shared=$2
+	local group=$3
+	local is_public=$4
+
+        read -p 'New repository name.git: '
+        local repo_name=$REPLY
+
+	if ! `expr "$repo_name" : '.*\.git' >/dev/null`; then
+		echo "Repository name must end with .git"
+		return 1
+	fi
+
+        local repo_dir=$BASEDIR/${repo_name}
+
+        test \! -e "$repo_dir" || { echo "Repo $repo_dir already exist"; exit 1; }
+
+        read -p 'Set Description:         '
+        local repo_desc=$REPLY
+
+        read -p "Create $label in $repo_dir Ok? (y/N)"
+        test "$REPLY" == "y" || exit 1
+
+        mkdir -p "$repo_dir"
+        git init --bare --shared=$shared "$repo_dir"
+	chgrp -R "$group" "$repo_dir"
+        echo "$repo_desc" > "$repo_dir/description"
+
+	if $is_public; then
+		touch "$repo_dir/PUBLIC"
+		echo "created $repo_dir/PUBLIC to expose via cgit"
+	fi
+
+        echo "done creating $label in $repo_dir"
+	echo "use 'git repo show $repo_dir' for details"
+	return 0
+}
+
+do_create_public() {
+	_create_repo "public repository" "0664" "share" true
+	return $?
+}
+
+do_create_shared() {
+	_create_repo "group-writeable repository" "0660" "share" false
+	return $?
+}
+
+do_create_private() {
+	_create_repo "private repository" "0600" "$USER" false
+	return $?
+}
+
+do_show() {
+        for repo_path in $*; do
+                if ! [ -f "$repo_path/HEAD" ]; then
+                        echo "Not a git repository: $repo_path"
+                        continue
+                fi
+                
+                echo "========== Actions on: $repo_path"
+                local repo_file_mode=$(stat -f %Lp "$repo_path")
+                local repo_file_uid=$(stat -f %u "$repo_path")
+                local repo_file_user=$(_getent passwd $repo_file_uid)
+                local repo_file_gid=$(stat -f %g "$repo_path")
+                local repo_file_group=$(_getent group $repo_file_gid)
+
+                echo "  ✔ Permissions mode ${repo_file_mode} (uid=${repo_file_uid}/${repo_file_user} gid=${repo_file_gid}/${repo_file_group})"
+                echo " ⚡ To clone from remote execute: "
+                echo "       git clone 'ssh://localnet.cc/~${repo_path##/home/}'"
+                if [ $(( 0$repo_file_mode & 07 )) -gt 0 ]; then
+			echo "       git clone 'http://localnet.cc/cgit/cgit.cgi/${repo_path##/home/}'  (read-only)"
+		fi
+                echo "  ☛ To update description execute: $EDITOR $repo_path/description"
+		echo "  ☛ For limited ssh-access with current user configure ~/.ssh/authorized_keys with:"
+		echo "      command=\"git shell -c \\\"\$SSH_ORIGINAL_COMMAND\\\"\",no-port-forwarding,no-agent-forwarding,no-X11-forwarding,no-pty ssh-rsa AAAAB3....."
+        done
+}
+
+do_mirror() {
+        local root_path=$(readlink -f "$1")
+        for repo_path in $(_list_repo_dirs $root_path); do
+                local mirror_url=$(sed -n -e 's/^Mirror for \(https.*\)$/\1/p' < $repo_path/description)
+                #todo
+        done
+}
+
+do_make_public() {
+        local repo_path=$1
+        test -f "$repo_path/HEAD" || { echo "$repo_path is not a git repository"; exit 1; }
+        set -x
+        git init -q --bare --shared=0664 "$repo_path"
+        find "$repo_path" -type d -exec chown $USER:share \{\} \;
+        find "$repo_path" -type d -exec chmod 0775 \{\} \;
+        find "$repo_path" -type f -exec chmod 0664 \{\} \;
+        touch "$repo_path/PUBLIC"
+        set +x
+}
+
+do_make_shared() {
+        local repo_path=$1
+        test -f "$repo_path/HEAD" || { echo "$repo_path is not a git repository"; exit 1; }
+        set -x
+        git init -q --bare --shared=0660 "$repo_path"
+        find "$repo_path" -type d -exec chown $USER:share \{\} \;
+        find "$repo_path" -type d -exec chmod 0770 \{\} \;
+        find "$repo_path" -type f -exec chmod 0660 \{\} \;
+        rm -f "$repo_path/PUBLIC"
+        set +x
+}
+
+do_make_private() {
+        local repo_path=$1
+        test -f "$repo_path/HEAD" || { echo "$repo_path is not a git repository"; exit 1; }
+        set -x
+        git init -q --bare --shared=0600 "$repo_path"
+        find "$repo_path" -type d -exec chown $USER:$USER \{\} \;
+        find "$repo_path" -type d -exec chmod 0700 \{\} \;
+        find "$repo_path" -type f -exec chmod 0600 \{\} \;
+        rm -f "$repo_path/PUBLIC"
+        set +x
+}
+
+case "$1" in
+        list) do_list "$2" ;;
+        create-public) do_create_public ;;
+        create-shared) do_create_shared ;;
+        create-private) do_create_private ;;
+        make-public) do_make_public "$2" ;;
+        make-shared) do_make_shared "$2" ;;
+        make-private) do_make_private "$2" ;;
+        show)
+                shift
+                do_show $*
+                ;;
+        mirror) do_mirror "$2" ;;
+        *)
+                cat <<HERE
+Unknown subcommand: '$1'
+
+Subcommands of git repo:
+  list [<dir>]        List infos (optional: only below <dir>)
+  show <dir...>       Show Commands for repo <dir>
+  mirror <dir>        Mirror git repositories under <dir> by looking 
+                      for 'Mirror for https://..' in description"
+  create-public       Create new repository that is 
+                        - Read/Write by Owner
+                        - Read/Write by 'share' group.
+                        - Read-Only through www via cgit
+  create-shared       Create new repository that is
+                        - Read/Write by Owner
+                        - Read/Write by 'share' group.
+  create-private      Create new repository that is
+                        - Read/Write by Owner only
+  make-public <dir>   Change permissions to public
+  make-shared <dir>   Change permissions to shared
+  make-private <dir>  Change permissions to private
+HERE
+                ;;
+esac
+