[gimp] build/win: Improvements to checkversions.sh

[Michael Henning <mhenning src gnome org>]

commit e9158b8be0873a83c4fa3d6cbfea01fa99c005e6
Author: Michael Henning <drawoc darkrefraction com>
Date:   Sun May 18 11:40:09 2014 -0400

    build/win: Improvements to checkversions.sh
    
    checkversions.sh now:
     * No longer needs a build output directory to run
     * Has comments
     * Filters out irrelevant results

 build/windows/jhbuild/checkversions.sh |   20 ++++++++++++++++----
 1 files changed, 16 insertions(+), 4 deletions(-)
---
diff --git a/build/windows/jhbuild/checkversions.sh b/build/windows/jhbuild/checkversions.sh
index 84e388f..62608e2 100755
--- a/build/windows/jhbuild/checkversions.sh
+++ b/build/windows/jhbuild/checkversions.sh
@@ -1,14 +1,26 @@
 #!/bin/bash
 
-grep -e entry targets/*/_jhbuild/packagedb.xml | grep -o -e "package[^//]*" | while read line; do 
-    COUPLE=`echo $line | grep -o -e "\"[^\"]*\"" | sed s/\"//g`
+./build list -r -a | sort | while read line; do
+       # Parse jhbuild's module versions
+       COUPLE=`echo $line | grep -o -e "[^ :()]*"`
        PACKAGE=`echo "$COUPLE" | sed -n 1p`
        VERSION=`echo "$COUPLE" | sed -n 2p | grep -o -e "[^- :]*" | sed -n 1p`
 
+       # Filter out git versions (40 char hashes), and metamodules (empty strings)
+       if [ ${#VERSION} == 40 ] || [ ${#VERSION} == 0 ]; then
+               continue
+       fi
+
+       # Determine pacman's version of the package
        PACVERSION=`pacman -Qi $PACKAGE | grep Version | grep -o -e "[^- :]*" | sed -n 2p`
+
+       # Filter out packages that pacman doesn't know about
+       if [ ${#PACVERSION} == 0 ]; then
+               continue
+       fi
+
+       # Warn if the versions are different
        if [ "$VERSION" != "$PACVERSION" ]; then
                echo $PACKAGE ":" $VERSION ":" $PACVERSION
        fi
 done
-
-#pacman -Qi $1 | grep Version | grep -o -e "[^- :]*" | sed -n 2p