user-tools/git-checkout-sparse

   1 #!/bin/bash
   2
   3 set -e
   4 set -u
   5
   6 repourl=''
   7 dir=''
   8 depth=1
   9 remote=origin
  10 branch=''
  11 declare -a paths=()
  12
  13 while [ -n "${1:-}" ]
  14 do
  15         case "$1" in
  16         -d)
  17                 shift
  18                 dir=$1
  19                 ;;
  20         -b)
  21                 shift
  22                 branch=$1
  23                 ;;
  24         -o)
  25                 shift
  26                 origin=$1
  27                 ;;
  28         -h|--help)
  29                 echo "${0##*/} GIT_REPO_URL [-d CLONE_DIRECTORY] [-o ORIGIN_NAME] [-b BRANCH] PATH [PATH [PATH ...]]"
  30                 exit 1
  31                 ;;
  32         -*)
  33                 echo "${0##*/}: invalid option: $1" >&2
  34                 exit 1
  35                 ;;
  36         *)
  37                 if [ "${repourl:-}" = "" ]
  38                 then
  39                         repourl=$1
  40                 else
  41                         paths+=("$1")
  42                 fi
  43                 ;;
  44         esac
  45         shift
  46 done
  47
  48 repourlnoslash=${repourl%%/}
  49 reponame=${repourlnoslash##*/}
  50 dir="${dir:-$reponame}"
  51
  52 clean()
  53 {
  54         rm -rv "$dir"
  55 }
  56
  57 trap clean SIGINT SIGQUIT SIGTERM
  58
  59 mkdir "$dir"
  60 (
  61         cd "$dir"
  62         git init
  63         git config core.sparseCheckout true
  64         git remote add "$remote" "$repourl"
  65         git fetch --depth=$depth "$remote" "$branch:$branch"
  66         for path in "${paths[@]}"
  67         do
  68                 #[ "${path: -1}" = / ] && path="$path*"
  69                 echo "$path" >> .git/info/sparse-checkout
  70         done
  71         git checkout "$branch"
  72 )