Add scripts/gir-rebuilder.py, script to find and rebuild outdated girs

* Similar in spirit to python-updater, perl-cleaner and revdep-rebuild

1 files changed, 103 insertions, 0 deletions

diff --git a/scripts/gir-rebuilder.py b/scripts/gir-rebuilder.py
new file mode 100755
index 00000000..445b4213
--- /dev/null
+++ b/scripts/gir-rebuilder.py
@@ -0,0 +1,103 @@
+#!/usr/bin/env python
+# vim: set sts=4 sw=4 et tw=90 :
+# 
+# Author(s): Nirbheek Chauhan <nirbheek@gentoo.org>
+# Idea-by: Arun Raghavan <ford_prefect@gentoo.org>
+# Tested-by: Arun Raghavan <ford_prefect@gentoo.org>
+#
+# Script to find outdated gobject-introspection .gir files, associate them with packages
+# and then recompile/upgrade them
+
+import os
+import os.path as osp
+import sys
+import re
+import subprocess
+from xml.dom import minidom as dom
+
+import portage
+from portage.versions import vercmp
+from portage.output import colorize
+
+###############
+## Variables ##
+###############
+quiet = False
+root = '/'
+gir_dirs = ['/usr/share/gir-1.0']
+girs = {}
+girversion = ''
+gi = 'gobject-introspection'
+settings = portage.settings
+
+###############
+## Functions ##
+###############
+def usage():
+    print """
+gir-rebuilder: Rebuilds gobject-introspection typelibs and girs in the following directories:
+ %s
+
+Usage: %s [ARGUMENTS TO EMERGE]
+
+Arguments:
+  All arguments are passed to portage
+    """ % ('\n '.join(gir_dirs), sys.argv[0])
+
+def get_version(gir):
+    return dom.parse(gir).getElementsByTagName('repository')[0].getAttribute('version')
+
+def get_contents(cpv):
+    cpv = portage.catsplit(cpv)
+    return set(portage.dblink(cpv[0], cpv[1], root, settings).getcontents().keys())
+
+##############
+## Set vars ##
+##############
+if os.environ.has_key('ROOT'):
+    root = os.environ['ROOT']
+portdb = portage.db[root]["vartree"].dbapi
+# Find the latest g-i
+# XXX: Assumes there's only one slot for g-i
+gi = portdb.match(gi)[0]
+for each in get_contents(gi):
+    # Find GIRepository-$ver.gir, and get the internal version
+    if re.match('.*GIRepository[^/]+\.gir$', each):
+        girepository = each
+        break
+else:
+    raise Exception("GIRepository .gir not found")
+girversion = get_version(girepository)
+
+##########
+## Work ##
+##########
+if '--help' in sys.argv:
+    usage()
+    exit(0)
+
+files_list = set()
+for dir in gir_dirs:
+    # Walk the gir directories to find files
+    for path, dirs, files in os.walk(osp.join(root, dir)):
+        for file in files:
+            if not file.endswith('.gir'):
+                continue
+            # Get the .gir version
+            version = get_version(osp.join(path, file))
+            # If not the same version as the GIRepository.gir, rebuild it
+            if vercmp(girversion, version) != 0:
+                if not quiet:
+                    print colorize("yellow", "GIR file to be rebuilt: ")+osp.join(path, file)
+                files_list.add(osp.join(path, file))
+
+rebuild_list = set()
+for cpv in portage.db[root]["vartree"].dbapi.cpv_all():
+    # If some of the files of this package are in the gir file list
+    if get_contents(cpv).intersection(files_list):
+        slot = portage.portdb.aux_get(cpv, ['SLOT'])[0]
+        # We strip the version, but maintain the slot (same as revdep-rebuild)
+        rebuild_list.add(portage.pkgsplit(cpv)[0]+':'+slot)
+
+# Run emerge
+subprocess.check_call("emerge -1 "+' '.join(sys.argv[1:]+list(rebuild_list)), shell=True)