jhbuild r1797 - in trunk: . jhbuild/commands

[fpeters svn gnome org]

Author: fpeters
Date: Thu Jan 10 21:03:17 2008
New Revision: 1797
URL: http://svn.gnome.org/viewvc/jhbuild?rev=1797&view=rev

Log:
* jhbuild/commands/rdepends.py: added a rdepends command, to show
reverse dependency information for a module; it has two possible
options: --dependencies to display dependency path next to modules,
and --direct to limit display to modules directly depending on the
given module.  (closes: #508289)



Added:
   trunk/jhbuild/commands/rdepends.py
Modified:
   trunk/ChangeLog

Added: trunk/jhbuild/commands/rdepends.py
==============================================================================
--- (empty file)
+++ trunk/jhbuild/commands/rdepends.py	Thu Jan 10 21:03:17 2008
@@ -0,0 +1,75 @@
+# jhbuild - a build script for GNOME 1.x and 2.x
+# Copyright (C) 2008  Frederic Peters
+#
+#   rdepends.py: show reverse-dependencies of a module
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from optparse import make_option
+
+import jhbuild.moduleset
+from jhbuild.commands import Command, register_command
+
+
+class cmd_rdepends(Command):
+    """Display reverse-dependencies of a module"""
+
+    name = 'rdepends'
+    usage_args = '[ module ]'
+
+    def __init__(self):
+        Command.__init__(self, [
+            make_option('--dependencies',
+                        action='store_true', dest='dependencies', default=False,
+                        help='display dependency path next to modules'),
+            make_option('--direct',
+                        action='store_true', dest='direct', default=False,
+                        help='limit display to modules directly depending on given module')
+            ])
+
+    def run(self, config, options, args):
+        module_set = jhbuild.moduleset.load(config)
+
+        if not args:
+            self.parser.error('This command requires a module parameter.')
+
+        modname = args[0]
+
+        # get all modules but those that are a dependency of modname
+        dependencies_list = [x.name for x in module_set.get_module_list([modname])]
+        dependencies_list.remove(modname)
+        modules = module_set.get_full_module_list(skip = dependencies_list)
+        modules = modules[[x.name for x in modules].index(modname)+1:]
+
+        # iterate over remaining modules, and print those with modname as dep;
+        # this is totally inefficient as a complete dependency list is computed
+        # for each module.
+        seen_modules = []
+        for module in modules:
+            if options.direct:
+                if modname in module.dependencies:
+                    print module.name
+            else:
+                module_list = module_set.get_module_list([module.name])
+                if modname in [x.name for x in module_list]:
+                    seen_modules.append(module.name)
+                    deps = ''
+                    if options.dependencies:
+                        dependencies = [x for x in module.dependencies if x in seen_modules]
+                        if dependencies:
+                            deps = '[' + ','.join(dependencies) + ']'
+                    print module.name, deps
+
+register_command(cmd_rdepends)