pkgs/tools/graphics/netpbm/update.sh

   1 #!/usr/bin/env nix-shell
   2 #!nix-shell -p bash -p subversion -p common-updater-scripts -i bash
   3
   4 die() {
   5     echo "error: $1" >&2
   6     exit 1
   7 }
   8
   9 attr=netpbm
  10 svnRoot=https://svn.code.sf.net/p/netpbm/code/advanced
  11
  12 oldRev=$(nix-instantiate --eval -E "with import ./. {}; $attr.src.rev" | tr -d '"')
  13 if [[ -z "$oldRev" ]]; then
  14     die "Could not extract old revision."
  15 fi
  16
  17 latestRev=$(svn info --show-item "last-changed-revision" "$svnRoot")
  18 if [[ -z "$latestRev" ]]; then
  19     die "Could not find out last changed revision."
  20 fi
  21
  22 versionInfo=$(svn cat -r "$latestRev" "$svnRoot/version.mk")
  23 if [[ -z "$versionInfo" ]]; then
  24     die "Could not get version info."
  25 fi
  26
  27 nixFile=$(nix-instantiate --eval --strict -A "$attr.meta.position" | sed -re 's/^"(.*):[0-9]+"$/\1/')
  28 if [[ ! -f "$nixFile" ]]; then
  29     die "Could not evaluate '$attr.meta.position' to locate the .nix file!"
  30 fi
  31
  32 # h remembers if we found the pattern; on the last line, if a pattern was previously found, we exit with 1
  33 # https://stackoverflow.com/a/12145797/160386
  34 sed -i "$nixFile" -re '/(\brev\b\s*=\s*)"'"$oldRev"'"/{ s||\1"'"$latestRev"'"|; h }; ${x; /./{x; q1}; x}' && die "Unable to update revision."
  35
  36 majorRelease=$(grep --perl-regex --only-matching 'NETPBM_MAJOR_RELEASE = \K.+' <<< "$versionInfo")
  37 minorRelease=$(grep --perl-regex --only-matching 'NETPBM_MINOR_RELEASE = \K.+' <<< "$versionInfo")
  38 pointRelease=$(grep --perl-regex --only-matching 'NETPBM_POINT_RELEASE = \K.+' <<< "$versionInfo")
  39
  40 update-source-version "$attr" "$majorRelease.$minorRelease.$pointRelease"