Add a script to generate fetchurl_gnome args

svn path=/nixpkgs/trunk/; revision=29397

maintainers/scripts/gnome-latest.sh

@@ -0,0 +1,105 @@
+#!/bin/sh
+
+GNOME_FTP="ftp.gnome.org/pub/GNOME/sources"
+
+project=$1
+
+if [ "$project" == "--help" ]; then
+  echo "Usage: $0 project [major.minor]"
+  exit 0
+fi
+
+baseVersion=$2
+
+if [ -z "$project" ]; then
+  echo "No project specified, exiting"
+  exit 1
+fi
+
+# curl -l ftp://... doesn't work from my office in HSE, and I don't want to have
+# any conversations with sysadmin. Somehow lftp works.
+if [ "$FTP_CLIENT" = "lftp" ]; then
+  ls_ftp() {
+    lftp -c "open $1; cls"
+  }
+else
+  ls_ftp() {
+    curl -l "$1"/
+  }
+fi
+
+if [ -z "$baseVersion" ]; then
+  echo "Looking for available versions..." >&2
+  available_baseversions=( `ls_ftp ftp://${GNOME_FTP}/${project} | grep '[0-9]\.[0-9]' | sort -t. -k1,1n -k 2,2n` )
+  echo -e "The following versions are available:\n ${available_baseversions[@]}" >&2
+  echo -en "Choose one of them: " >&2
+  read baseVersion
+fi
+
+FTPDIR="${GNOME_FTP}/${project}/${baseVersion}"
+
+#version=`curl -l ${FTPDIR}/ 2>/dev/null | grep LATEST-IS | sed -e s/LATEST-IS-//`
+# gnome's LATEST-IS is broken. Do not trust it.
+
+files=$(ls_ftp "${FTPDIR}")
+declare -A versions
+
+for f in $files; do
+  case $f in
+    (LATEST-IS-*|*.news|*.changes|*.sha256sum|*.diff*):
+      ;;
+    ($project-*.*.9*.tar.*):
+      tmp=${f#$project-}
+      tmp=${tmp%.tar*}
+      echo "Ignored unstable version ${tmp}" >&2
+      ;;
+    ($project-*.tar.*):
+      tmp=${f#$project-}
+      tmp=${tmp%.tar*}
+      versions[${tmp}]=1
+      ;;
+    (*):
+      echo "UNKNOWN FILE $f"
+      ;;
+  esac
+done
+echo "Found versions ${!versions[@]}" >&2
+version=`echo ${!versions[@]} | sed -e 's/ /\n/g' | sort -t. -k1,1n -k 2,2n -k 3,3n | tail -n1`
+echo "Latest version is: ${version}" >&2
+
+name=${project}-${version}
+echo "Fetching .sha256 file" >&2
+curl -O http://${FTPDIR}/${name}.sha256sum
+
+extensions=( "xz" "bz2" "gz" )
+echo "Choosing archive extension (known are ${extensions[@]})..." >&2
+for ext in ${extensions[@]}; do
+  if grep "\\.tar\\.${ext}$" ${name}.sha256sum >& /dev/null; then
+    ext_pref=$ext
+    sha256=$(grep "\\.tar\\.${ext}$" ${name}.sha256sum | cut -f1 -d\ )
+    break
+  fi
+done
+sha256=`nix-hash --to-base32 --type sha256 $sha256`
+echo "Chosen ${ext_pref}, hash is ${sha256}" >&2
+
+cat <<EOF
+  src = fetchurl_gnome {
+    project = "${project}";
+EOF
+echo -n "    major = \"`echo ${version} | cut -d. -f1`\";"
+echo -n " minor = \"`echo ${version} | cut -d. -f2`\";"
+patchlevel=`echo ${version} | cut -d. -f3`
+if [ -n "$patchlevel" ]; then
+  echo -n " patchlevel = \"${patchlevel}\";"
+fi
+if [ "$ext_pref" != "bz2" ]; then
+  echo -n " extension = \"${ext_pref}\";"
+fi
+echo
+cat <<EOF
+    sha256 = "${sha256}";
+  };
+EOF
+
+rm -v ${name}.sha256sum >&2