4 files changed, 169 insertions, 0 deletions

diff --git a/bitbake/ChangeLog b/bitbake/ChangeLog
index b8ab651aa2..0c7e6d8a8e 100644
--- a/bitbake/ChangeLog
+++ b/bitbake/ChangeLog
@@ -8,6 +8,8 @@ Changes in BitBake 1.8.x:
         - Detect builds of tasks with overlapping providers and warn (will become a fatal error) (#1359)
         - Add MULTI_PROVIDER_WHITELIST variable to allow known safe multiple providers to be listed
         - Handle paths in svn fetcher module parameter
+        - Support the syntax "export VARIABLE"
+        - Add bzr fetcher
 
 Changes in Bitbake 1.8.8:
         - Rewrite svn fetcher to make adding extra operations easier 
diff --git a/bitbake/lib/bb/fetch/__init__.py b/bitbake/lib/bb/fetch/__init__.py
index c34405738b..da911e242c 100644
--- a/bitbake/lib/bb/fetch/__init__.py
+++ b/bitbake/lib/bb/fetch/__init__.py
@@ -460,6 +460,7 @@ import wget
 import svk
 import ssh
 import perforce
+import bzr
 
 methods.append(local.Local())
 methods.append(wget.Wget())
@@ -469,3 +470,4 @@ methods.append(cvs.Cvs())
 methods.append(svk.Svk())
 methods.append(ssh.SSH())
 methods.append(perforce.Perforce())
+methods.append(bzr.Bzr())
diff --git a/bitbake/lib/bb/fetch/bzr.py b/bitbake/lib/bb/fetch/bzr.py
new file mode 100644
index 0000000000..be89a080a0
--- /dev/null
+++ b/bitbake/lib/bb/fetch/bzr.py
@@ -0,0 +1,159 @@
+"""
+BitBake 'Fetch' implementation for bzr.
+
+"""
+
+# Copyright (C) 2007 Ross Burton
+# Copyright (C) 2007 Richard Purdie
+#
+#   Classes for obtaining upstream sources for the
+#   BitBake build tools.
+#   Copyright (C) 2003, 2004  Chris Larson
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# 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.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import os
+import sys
+import bb
+from bb import data
+from bb.fetch import Fetch
+from bb.fetch import FetchError
+from bb.fetch import MissingParameterError
+from bb.fetch import runfetchcmd
+
+class Bzr(Fetch):
+    def supports(self, url, ud, d):
+        return ud.type in ['bzr']
+
+    def localpath (self, url, ud, d):
+
+        # Create paths to bzr checkouts
+        relpath = ud.path
+        if relpath.startswith('/'):
+            # Remove leading slash as os.path.join can't cope
+            relpath = relpath[1:]
+        ud.pkgdir = os.path.join(data.expand('${BZRDIR}', d), ud.host, relpath)
+
+        if 'rev' in ud.parm:
+            ud.revision = ud.parm['rev']
+        else:
+            # ***Nasty hack***
+            rev = data.getVar("SRCREV", d, 0)
+            if rev and "get_srcrev" in rev:
+                ud.revision = self.latest_revision(url, ud, d)
+            elif rev:
+                ud.revision = rev
+            else:
+                ud.revision = ""
+
+        
+        ud.localfile = data.expand('bzr_%s_%s_%s.tar.gz' % (ud.host, ud.path.replace('/', '.'), ud.revision), d)
+        
+        return os.path.join(data.getVar("DL_DIR", d, True), ud.localfile)
+
+    def _buildbzrcommand(self, ud, d, command):
+        """
+        Build up an bzr commandline based on ud
+        command is "fetch", "update", "revno"
+        """
+
+        basecmd = data.expand('${FETCHCMD_bzr}', d)
+
+        proto = "http"
+        if "proto" in ud.parm:
+            proto = ud.parm["proto"]
+
+        bzrroot = ud.host + ud.path
+
+        options = []
+
+        if command is "revno":
+            bzrcmd = "%s revno %s %s://%s" % (basecmd, " ".join(options), proto, bzrroot)
+        else:
+            if ud.revision:
+                options.append("-r %s" % ud.revision)
+
+            if command is "fetch":
+                bzrcmd = "%s co %s %s://%s" % (basecmd, " ".join(options), proto, bzrroot)
+            elif command is "update":
+                bzrcmd = "%s update %s" % (basecmd, " ".join(options))
+            else:
+                raise FetchError("Invalid bzr command %s" % command)
+
+        return bzrcmd
+
+    def go(self, loc, ud, d):
+        """Fetch url"""
+
+        # try to use the tarball stash
+        if Fetch.try_mirror(d, ud.localfile):
+            bb.msg.debug(1, bb.msg.domain.Fetcher, "%s already exists or was mirrored, skipping bzr checkout." % ud.localpath)
+            return
+
+        # Updating is disabled until bzr supports the syntax "bzr update -r X" to specify a revision
+        if 0 and os.access(os.path.join(ud.pkgdir, os.path.basename(ud.pkgdir), '.bzr'), os.R_OK):
+            bzrcmd = self._buildbzrcommand(ud, d, "update")
+            bb.msg.debug(1, bb.msg.domain.Fetcher, "BZR Update %s" % loc)
+            os.chdir(os.path.join (ud.pkgdir, os.path.basename(ud.path)))
+            runfetchcmd(bzrcmd, d)
+        else:
+            os.system("rm -rf %s" % os.path.join(ud.pkgdir, os.path.basename(ud.pkgdir)))
+            bzrcmd = self._buildbzrcommand(ud, d, "fetch")
+            bb.msg.debug(1, bb.msg.domain.Fetcher, "BZR Checkout %s" % loc)
+            bb.mkdirhier(ud.pkgdir)
+            os.chdir(ud.pkgdir)
+            bb.msg.debug(1, bb.msg.domain.Fetcher, "Running %s" % bzrcmd)
+            runfetchcmd(bzrcmd, d)
+
+        os.chdir(ud.pkgdir)
+        # tar them up to a defined filename
+        try:
+            runfetchcmd("tar -czf %s %s" % (ud.localpath, os.path.basename(ud.pkgdir)), d)
+        except:
+            t, v, tb = sys.exc_info()
+            try:
+                os.unlink(ud.localpath)
+            except OSError:
+                pass
+            raise t, v, tb
+
+    def suppports_srcrev(self):
+        return True
+
+    def _revision_key(self, url, ud, d):
+        """
+        Return a unique key for the url
+        """
+        return "bzr:" + ud.pkgdir
+
+    def _latest_revision(self, url, ud, d):
+        """
+        Return the latest upstream revision number
+        """
+        bb.msg.debug(2, bb.msg.domain.Fetcher, "BZR fetcher hitting network for %s" % url)
+
+        output = runfetchcmd(self._buildbzrcommand(ud, d, "revno"), d, True)
+
+        for line in output.splitlines():
+            revision = line
+
+        return revision
+
+    def _sortable_revision(self, url, ud, d):
+        """
+        Return a sortable revision number which in our case is the revision number
+        (use the cached version to avoid network access)
+        """
+
+        return self.latest_revision(url, ud, d)
diff --git a/bitbake/lib/bb/parse/parse_py/ConfHandler.py b/bitbake/lib/bb/parse/parse_py/ConfHandler.py
index 6311e76902..e6488bbe11 100644
--- a/bitbake/lib/bb/parse/parse_py/ConfHandler.py
+++ b/bitbake/lib/bb/parse/parse_py/ConfHandler.py
@@ -31,6 +31,7 @@ from bb.parse import ParseError
 __config_regexp__  = re.compile( r"(?P<exp>export\s*)?(?P<var>[a-zA-Z0-9\-_+.${}/]+)(\[(?P<flag>[a-zA-Z0-9\-_+.]+)\])?\s*((?P<colon>:=)|(?P<ques>\?=)|(?P<append>\+=)|(?P<prepend>=\+)|(?P<predot>=\.)|(?P<postdot>\.=)|=)\s*(?P<apo>['\"]?)(?P<value>.*)(?P=apo)$")
 __include_regexp__ = re.compile( r"include\s+(.+)" )
 __require_regexp__ = re.compile( r"require\s+(.+)" )
+__export_regexp__ = re.compile( r"export\s+(.+)" )
 
 def init(data):
     if not bb.data.getVar('TOPDIR', data):
@@ -214,6 +215,11 @@ def feeder(lineno, s, fn, data):
         include(fn, s, data, "include required")
         return
 
+    m = __export_regexp__.match(s)
+    if m:
+        bb.data.setVarFlag(m.group(1), "export", 1, data)
+        return
+
     raise ParseError("%s:%d: unparsed line: '%s'" % (fn, lineno, s));
 
 # Add us to the handlers list