1 files changed, 222 insertions, 0 deletions

diff --git a/scripts/jhbuild/rewrite.py b/scripts/jhbuild/rewrite.py
new file mode 100755
index 0000000000..7200a195c6
--- /dev/null
+++ b/scripts/jhbuild/rewrite.py
@@ -0,0 +1,222 @@
+#!/usr/bin/env python
+# Available modulesets:
+#
+# bootstrap.modules
+# freedesktop.modules
+# gcj.modules
+# gnome-2.10.modules
+# gnome-2.12.modules
+# gnome-2.14.modules
+# gnome-2.16.modules
+# gnutls.modules
+# gtk28.modules
+# gtk.modules
+# xorg-7.0.modules
+# xorg.modules
+
+moduleset = 'xorg.modules'
+
+
+
+import cElementTree as ElementTree
+# import lxml.etree as ElementTree
+import re, os, bb, bb.data
+
+class Handlers(object):
+    """
+    Class to act as a store for handlers of jhbuild xml elements, and as a
+    dispatcher of parsed Elements to those handlers.
+
+    These handlers exist to take an xml element from the jhbuild files and
+    either produce bitbake metadata in self.packages, or produce data which
+    will be used by other element handlers to do so.
+
+    Handlers(filename) -> new object to parse and process jhbuild file of
+                          name 'filename'.
+    """
+
+    cvsrootpat = re.compile(r'''
+        \s*                 # Skip leading whitespace
+        :(?P<scheme>[^:]+): # scheme (i.e. pserver, ext)
+        ((?P<user>\S+?)@)?  # username
+        (?P<host>\S+?):     # non-greedy match of the remote host
+        (?P<path>\S+)       # remote path
+    ''', re.VERBOSE)
+
+
+    def __init__(self, msfile):
+        self.msfile = msfile
+        self.msbasename = os.path.basename(msfile)
+        self.msdirname = os.path.dirname(msfile)
+
+        self.handled = {}
+
+        self.cvsroots = {}
+        self.repositories = {}
+        self.packages = []
+
+    def handle(self, element, parent):
+        import sys
+        """
+        XML Element dispatch function.  Can be called both from outside the
+        Handlers object to initiate handling, and from within individual XML
+        element handlers to ensure that dependent elements have been handled.
+
+        Does not handle a given XML Element more than once, as it retains
+        information about the handling state of the Elements it encounters.
+        """
+
+        try:
+            state = self.handled[element]
+        except KeyError:
+            pass
+        except:
+            return
+
+        try:
+            self.__class__.__dict__[element.tag](self, element, parent)
+            self.handled[element] = True
+        except KeyError:
+            self.handled[element] = False
+            sys.__stderr__.write('Unhandled element: %s\n' % element.tag)
+        except Exception:
+            sys.__stderr__.write('Error handling %s: %s:\n    %s\n' % (element.tag, sys.exc_type, sys.exc_value))
+            self.handled[element] = False
+
+        print('handle(%s, %s) -> %s' % (element, parent, self.handled[element]))
+        return self.handled[element]
+
+    def cvsroot(self, element, parent):
+        # Rip apart the cvsroot style location to build a cvs:// url for
+        # bitbake's usage in the cvsmodule handler.
+        # root=":pserver:anoncvs@cvs.freedesktop.org:/cvs/fontconfig"
+        print("cvsroot(%s, %s)" % (element, parent))
+
+        root = element.attrib.get('root')
+        rootmatch = re.match(Handlers.cvsrootpat, root)
+        name = element.attrib.get('name')
+        user = rootmatch.group('user') or ''
+        if user != '':
+            pw = element.attrib.get('password') or ''
+            if pw != '':
+                pw = ':' + pw + '@'
+            else:
+                user = user + '@'
+        print('user: %s' % user)
+        print('pw: %s' % pw)
+
+        host = rootmatch.group('host')
+        print('host: %s' % host)
+        path = rootmatch.group('path') or '/'
+        print('path: %s' % path)
+
+        root = "cvs://%s%s%s%s" % (user, pw, host, path)
+        print('root: %s' % root)
+        self.cvsroots[name] = root
+
+    def cvsmodule(self, element, parent):
+        rootlist = [root for root in list(parent) if root.attrib.get('name') == element.attrib.get('cvsroot')]
+        if len(rootlist) < 1:
+            raise Exception("Error: cvsmodule '%s' requires cvsroot '%s'." % (element.attrib.get('module'), element.attrib.get('cvsroot')))
+
+        cvsroot = rootlist[0]
+
+
+    def include(self, element, parent):
+        href = element.attrib.get('href')
+        fullhref = os.path.join(self.msdirname, href)
+        tree = ElementTree.ElementTree(file=fullhref)
+        elem = tree.getroot()
+
+        # Append the children of the newly included root element to the parent
+        # element, and manually handle() them, as the currently running
+        # iteration isn't going to hit them.
+        for child in elem:
+            self.handle(child, elem)
+            parent.append(elem)
+
+    def repository(self, element, parent):
+        # TODO:
+        # Convert the URL in the href attribute, if necessary, to the format
+        # which bitbake expects to see in SRC_URI.
+        name = element.attrib.get('name')
+        self.repositories[name] = element.attrib.get('href')
+
+
+    def moduleset(self, element, parent):
+        for child in element:
+            self.handle(child, element)
+
+    def packagename(self, name):
+        # mangle name into an appropriate bitbake package name
+        return name.replace('/', '-') 
+
+    def metamodule(self, element, parent):
+        # grab the deps
+        dependlist = [child for child in element if child.tag == "dependencies"]
+        deps = [self.packagename(dep.attrib.get('package')) for dep in dependlist[0] if child.tag == "dep"]
+
+        # create the package
+        d = bb.data.init()
+        pn = self.packagename(element.attrib.get('id'))
+        bb.data.setVar('PN', pn, d)
+        bb.data.setVar('DEPENDS', ' '.join(deps), d)
+        bb.data.setVar('_handler', 'metamodule', d)
+        self.packages.append(d)
+
+    def autotools(self, element, parent):
+        deps = None
+        branch = None
+        for child in element:
+            if child.tag == 'dependencies':
+                deps = [self.packagename(dep.attrib.get('package')) for dep in child if dep.tag == "dep"]
+            elif child.tag == 'branch':
+                branch = child
+
+        # create the package
+        d = bb.data.init()
+        id = element.attrib.get('id')
+        if id is None:
+            raise Exception('Error: autotools element has no id attribute.')
+        pn = self.packagename(id)
+        bb.data.setVar('PN', pn, d)
+        if deps is not None:
+            bb.data.setVar('DEPENDS', ' '.join(deps), d)
+
+        if branch is not None:
+            # <branch repo="git.freedesktop.org" module="xorg/xserver"/>
+            repo = os.path.join(self.repositories[branch.attrib.get('repo')], branch.attrib.get('module'))
+            bb.data.setVar('SRC_URI', repo, d)
+
+            checkoutdir = branch.attrib.get('checkoutdir')
+            if checkoutdir is not None:
+                bb.data.setVar('S', os.path.join('${WORKDIR}', checkoutdir), d)
+
+        # build class
+        bb.data.setVar('INCLUDES', 'autotools', d)
+        bb.data.setVarFlag('INCLUDES', 'operator', '+=', d)
+        bb.data.setVar('_handler', 'autotools', d)
+        self.packages.append(d)
+
+class Emitter(object):
+    """
+    Class to take a Handlers object after processing and emit the
+    bitbake files from the metadata.  It supports either emitting
+    the data as is, using templates based on package name, and using
+    templates based on the name of handler / xml element associated
+    with the package itself.
+    """
+
+def _test():
+    msfile = os.path.join(os.path.abspath(os.curdir), 'modulesets', moduleset)
+    tree = ElementTree.ElementTree(file=msfile)
+    elem = tree.getroot()
+
+    handlers = Handlers(msfile)
+    handlers.handle(elem, None)
+
+    for package in handlers.packages:
+        print(bb.data.getVar('PN', package))
+
+if __name__ == "__main__":
+    _test()