bin/upload-to-github.sh

   1 #!/bin/sh
   2
   3 # Written with a lot of assistance by Scott Chacon
   4
   5 USAGE="$0"' <options>... <filepath>
   6 Options:
   7         --description   <download-description>  (required)
   8         --user          <github-account>        (required)
   9         --repository    <github-repository>     (required)
  10 '
  11
  12 description=
  13 user=
  14 repository=
  15 filepath=
  16 filesize=
  17 basename=
  18 dryrun=
  19 while test $# -gt 0
  20 do
  21         case "$1" in
  22         --description|--user|--repository)
  23                 test $# -gt 1 || {
  24                         echo "Option '$1' needs a value" >&2
  25                         exit 1
  26                 }
  27                 eval ${1#--}="\"$2\""
  28                 shift
  29                 ;;
  30         --description=*|--user=*|--repository=*)
  31                 pair="${1#--}"
  32                 eval ${pair%%=*}="${pair#*=}"
  33                 ;;
  34         --dry-run)
  35                 dryrun=YouGotThatRight
  36                 ;;
  37         --help)
  38                 echo "$USAGE"
  39                 exit 1
  40                 ;;
  41         *)
  42                 break;
  43         esac
  44         shift
  45 done
  46
  47 if test $# -ne 1 || ! test -f "$1"
  48 then
  49         echo "$USAGE"
  50         exit 1
  51 fi
  52
  53 filepath="$1"
  54 filesize="$(stat -c %s "$filepath")"
  55 basename="$(basename "$filepath")"
  56
  57 # extract 'for version <version>' from basename
  58 for_version=${basename%-preview*}
  59 for_version=${for_version##*Git-}
  60 for_version=${for_version##*install-}
  61 for_version="for official Git for Windows $for_version"
  62
  63 case "$basename" in
  64 Git-*)
  65         description="${description:-Full installer $for_version}"
  66         repository=${repository:-msysgit/git}
  67         ;;
  68 PortableGit-*)
  69         description="${description:-Portable application $for_version}"
  70         repository=${repository:-msysgit/git}
  71         ;;
  72 msysGit-netinstall-*)
  73         description="${description:-Net installer if you want to hack on Git}"
  74         repository=${repository:-msysgit/git}
  75         ;;
  76 msysGit-fullinstall-*)
  77         description="${description:-Full installer (self-contained) if you want to hack on Git}"
  78         repository=${repository:-msysgit/git}
  79         ;;
  80 esac
  81
  82 test -z "$user" &&
  83 user="$(grep -A2 -i '^machine  *api.github.com' < "$HOME/.netrc" 2> /dev/null |
  84         sed -n 's|login  *||pi')"
  85
  86 if test -z "$description" || test -z "$user" || test -z "$repository"
  87 then
  88         echo "$USAGE"
  89         exit 1
  90 fi
  91
  92 get_password () { # args: user host
  93         # try $HOME/.netrc; ignore <user> parameter first
  94         password="$(grep -A2 -i "^machine  *$2" < $HOME/.netrc 2> /dev/null |
  95                 sed -n 's|^password  *||p')"
  96         test -z "$password" &&
  97         password="$(git gui--askpass "Password for $1@$2")"
  98         echo "$password"
  99 }
 100
 101 json_get () { # args: key json
 102         echo "$2" |
 103         sed -n -s "s|^ *\"$1\" *: *\"\(.*\)\",\?$|\1|p"
 104 }
 105
 106 json_wrap () { # args: key1, value1, [key2, value2], ...
 107         printf '{'
 108         sep=
 109         while test $# -gt 1
 110         do
 111                 printf '%s"%s":"%s"' "$sep" "$1" "$2"
 112                 sep=,
 113                 shift
 114                 shift
 115         done
 116         printf '}'
 117 }
 118
 119 windowsfilepath="$(cd "$(dirname "$filepath")" && pwd -W)\\$basename"
 120
 121 test -n "$dryrun" && {
 122         cat << EOF
 123 basename:       $basename
 124 size:           $filesize
 125 description:    $description
 126 user:           $user
 127 repository:     $repository
 128 EOF
 129         exit 0
 130 }
 131
 132 password="$(get_password "$user" "api.github.com")"
 133 test -n "$password" || exit
 134
 135 # get ticket
 136 json="$(curl -XPOST \
 137         -d "$(json_wrap \
 138                 name "$basename" \
 139                 size "$filesize" \
 140                 description "$description")" \
 141         -u "$user:$password" \
 142         https://api.github.com/repos/$repository/downloads)"
 143
 144 # upload for real, using S3
 145 result="$(curl \
 146         -F key="$(json_get path "$json")" \
 147         -F acl="$(json_get acl "$json")" \
 148         -F success_action_status=201 \
 149         -F Filename="$(json_get name "$json")" \
 150         -F AWSAccessKeyId="$(json_get accesskeyid "$json")" \
 151         -F Policy="$(json_get policy "$json")" \
 152         -F Signature="$(json_get signature "$json")" \
 153         -F Content-Type="$(json_get mime_type "$json")" \
 154         -F file=@"$windowsfilepath" \
 155         "$(json_get s3_url "$json")")"
 156
 157 echo "$result"
 158
 159 # Verify that the upload was successful
 160 case "$result" in
 161 *"<Location>"*"</Location>"*)
 162         echo "Success!"
 163         ;;
 164 *)
 165         exit 1
 166         ;;
 167 esac