.bin/vcs-url

   1 #!/bin/bash
   2
   3 err() { echo "error: $*" >&2; exit 1; }
   4
   5 _cvs_url() {
   6         [[ $# -gt 1 ]] && err "accepted args: <file>[:rev1[:rev2]]"
   7
   8         # spec has the form file:rev1[:rev2]
   9         # rev2 defaults to rev1-1
  10         export IFS=:
  11         set -- $1
  12         unset IFS
  13
  14         local file=$1
  15         if [[ ! -e ${file} ]] ; then
  16                 echo "file '${file}' does not exist"
  17                 return 1
  18         fi
  19         local dir="."
  20         [[ ${file} == */* ]] && dir=${file%/*}
  21         file=${file##*/}
  22
  23         local rev2=$2
  24         if [[ -z ${rev2} ]] ; then
  25                 rev2=$(
  26                         cd ${dir}
  27                         export IFS=/
  28                         set -- $(grep /${file}/ CVS/Entries)
  29                         unset IFS
  30                         echo $3
  31                 )
  32                 if [[ ${rev2} == "0" ]] ; then
  33                         # new file
  34                         rev2="1.1"
  35                 else
  36                         # existing file, bump rev automatically
  37                         rev2="1.$((${rev2#1.}+1))"
  38                 fi
  39         fi
  40         local rev2r=${rev2#1.}
  41         local rev1=${3:-1.$((rev2r - 1))}
  42
  43         local cvsroot=$(<${dir}/CVS/Repository)
  44         if [[ ${cvsroot} == gentoo-x86* ]] ; then
  45                 cvsroot=${cvsroot#gentoo-x86}
  46                 cvsroot=${cvsroot#/}
  47         fi
  48
  49         local urirev
  50         [[ ${rev2} == "1.1" || ${rev1} == "${rev2}" ]] \
  51                 && urirev="?rev=${rev2}" \
  52                 || urirev="?r1=${rev1}&r2=${rev2}"
  53         echo "http://sources.gentoo.org/${cvsroot}/${file}${urirev}"
  54 }
  55 cvs_url() {
  56         local f
  57         for f in "$@" ; do
  58                 _cvs_url "${f}"
  59         done
  60 }
  61
  62 git_url() {
  63         [[ $# -gt 1 ]] && err "accepted args: <rev>"
  64
  65         local repo url
  66         local remote=$(git config remote.origin.url)
  67         case ${remote} in
  68         *://uclibc.org/*|*://git.uclibc.org/*|\
  69         *://busybox.net/*|*://git.busybox.net/*|\
  70         *://buildroot.org/*|*://git.buildroot.org/*|\
  71         *://buildroot.net/*|*://git.buildroot.net/*)
  72                 repo=$(echo "${remote}" | sed -e 's,^[^:]*://[^/]*/,,' -e 's:[.]git$::')
  73                 url="https://git.${repo,,}.org/${repo}/commit/?id="
  74                 ;;
  75         *://git@git.gentoo.org/*|\
  76         *://anongit.gentoo.org/*)
  77                 repo=$(echo "${remote}" | sed 's:.*git[.a-z]*.gentoo.org/::')
  78                 url="http://gitweb.gentoo.org/${repo}/commit/?id="
  79                 ;;
  80         git@github.com/*|\
  81         *://github.com/*)
  82                 repo=$(echo "${remote}" | sed -e 's,^git@github.com/,,' -e 's,^https://github.com/,,' -e 's:[.]git$::')
  83                 url="https://github.com/${repo}/commit/"
  84                 ;;
  85         git://git.sv.gnu.org/*)
  86                 repo=$(echo "${remote}" | sed -e 's,^git://git.sv.gnu.org/,,' -e 's:[.]git$::')
  87                 url="http://git.savannah.gnu.org/cgit/${repo}.git/commit/?h="
  88                 ;;
  89         *)
  90                 echo "Unknown remote: ${remote}"
  91                 exit 1
  92                 ;;
  93         esac
  94
  95         git log -n3 ${1:-HEAD} | sed "s,^commit ,${url},"
  96 }
  97
  98 svn_url() {
  99         if [[ $# -eq 0 ]] ; then
 100                 svn info | \
 101                 awk '{
 102                         if ($1 == "URL:") {
 103                                 URL = "http://sources.gentoo.org/" gensub(/.*svnroot\/([^/]*).*/,"\\1","");
 104                         } else if ($1 == "Revision:") {
 105                                 rev = $2
 106                                 URL = URL "?rev=" (rev + 1) "&view=rev"
 107                         }
 108                 }
 109                 END { print URL }'
 110                 return 0
 111         fi
 112
 113         local f
 114         for f in "$@" ; do
 115                 svn info "${f}" | \
 116                 awk '{
 117                         if ($1 == "URL:") {
 118                                 sub(/.*svnroot/,"")
 119                                 URL = "http://sources.gentoo.org" $1 "?"
 120                         } else if ($1 == "Revision:") {
 121                                 rev = $2
 122                                 URL = URL "r1=" rev "&r2=" (rev + 1)
 123                         }
 124                 }
 125                 END { print URL }'
 126         done
 127 }
 128
 129 usage() {
 130         exec cat <<-EOF
 131         Usage: $0 [options] [args]
 132
 133         Options:
 134           -c       CVS URL
 135           -g       GIT URL (default)
 136           -s       SVN URL
 137           -x       Trace the script
 138           -h       Help
 139         EOF
 140 }
 141
 142 main() {
 143         local vcs="git"
 144         while [[ $# -gt 0 ]] ; do
 145                 case $1 in
 146                 -c) vcs="cvs";;
 147                 -s) vcs="svn";;
 148                 -g) vcs="git";;
 149                 -x) set -x;;
 150                 -h) usage;;
 151                 --) shift; break;;
 152                 -*) usage;;
 153                 *)  break;;
 154                 esac
 155                 shift
 156         done
 157
 158         case ${vcs} in
 159         cvs) cvs_url "$@";;
 160         git) git_url "$@";;
 161         svn) svn_url "$@";;
 162         esac
 163 }
 164 main "$@"