git-xclone

#!/bin/sh
# Clone git repository with xtra directory
# vim:se ai si sts=2 sw=2 et:
#############################################################################
# Copyright (c) 2020 Osamu Aoki
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#############################################################################
__help() {
  echo "NAME"
  echo "    git-xclone - Clone a repository to the project name organized directory"
  echo "SYNOPSIS"
  echo "    git xclone URL"
  echo "DESCRIPTION"
  echo "    Clones a repository to the project name organized directory to work with"
  echo "    multiple projects smoothly.  Here, URL is like:"
  echo "      * https://<repository>/<owner>/<project>.git"
  echo "      * git@<repository>:<owner>/<project>.git"
  echo "    The first invocation clones a repository into:"
  echo "        <project>/<project>"
  echo "    The following invocations clone repositories into:"
  echo "        <project>/<repository>/<owner>/<project>"
  echo "    This should help us organize build results cleanly."
}

# Typical repos
#
# git@salsa.debian.org:debian/ibus.git
# https://salsa.debian.org/debian/ibus.git
#
# git xclone URL
# New: PROJ/PROJ
# Sub: PROJ/REPO/OWNR/PROJ
if [ -n "$1" ]; then
  URL="$1"
else
  URL="-h"
fi
case "$URL" in
  -h | --help) # need help
    __help
    exit 0
    ;;
  git@*) # git@salsa.debian.org:debian/ibus.git
    U="${URL#git@}"
    U="${U%.git}"
    PROJ="${U#*/}"
    U="${U%%/*}"
    SITE="${U%%:*}"
    OWNR="${U#*:}"
    ;;
  https://*) # https://salsa.debian.org/debian/ibus.git
    U="${URL#https://}"
    U="${URL%.git}"
    PROJ="${U##*/}"
    U="${U%/*}"
    SITE="${U%%/*}"
    OWNR="${U#*/}" # may contain "/"
    ;;
  http://*) # http://foo.bar.org/baz/zzzz.git
    U="${URL#http://}"
    U="${URL%.git}"
    PROJ="${U##*/}"
    U="${U%/*}"
    SITE="${U%%/*}"
    OWNR="${U#*/}" # may contain "/"
    ;;
  *) # others
    exit 1
    ;;
esac

if [ -e "$PROJ" ]; then
  mkdir -p "$SITE/$OWNR"
  cd "$SITE/$OWNR" || return > /dev/null
  git clone "$URL"
else
  mkdir -p "$PROJ"
  cd "$PROJ" || return > /dev/null
  git clone "$URL"
fi
exec