1 files changed, 96 insertions, 0 deletions
diff --git a/js/src/build/cl.py b/js/src/build/cl.py
new file mode 100644
index 0000000..0198c92
--- /dev/null
+++ b/js/src/build/cl.py
@@ -0,0 +1,96 @@
+# ***** BEGIN LICENSE BLOCK *****
+# Version: MPL 1.1/GPL 2.0/LGPL 2.1
+#
+# The contents of this file are subject to the Mozilla Public License Version
+# 1.1 (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+# http://www.mozilla.org/MPL/
+#
+# Software distributed under the License is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+# for the specific language governing rights and limitations under the
+# License.
+#
+# The Original Code is cl.py: a python wrapper for cl to automatically generate
+# dependency information.
+#
+# The Initial Developer of the Original Code is
+#   Mozilla Foundation.
+# Portions created by the Initial Developer are Copyright (C) 2010
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Kyle Huey <me@kylehuey.com>
+#
+# Alternatively, the contents of this file may be used under the terms of
+# either the GNU General Public License Version 2 or later (the "GPL"), or
+# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+# in which case the provisions of the GPL or the LGPL are applicable instead
+# of those above. If you wish to allow use of your version of this file only
+# under the terms of either the GPL or the LGPL, and not to allow others to
+# use your version of this file under the terms of the MPL, indicate your
+# decision by deleting the provisions above and replace them with the notice
+# and other provisions required by the GPL or the LGPL. If you do not delete
+# the provisions above, a recipient may use your version of this file under
+# the terms of any one of the MPL, the GPL or the LGPL.
+#
+# ***** END LICENSE BLOCK *****
+
+import os, os.path
+import subprocess
+import sys
+
+CL_INCLUDES_PREFIX = os.environ.get("CL_INCLUDES_PREFIX", "Note: including file:")
+
+def InvokeClWithDependencyGeneration(cmdline):
+    target = ""
+    # Figure out what the target is
+    for arg in cmdline:
+        if arg.startswith("-Fo"):
+            target = arg[3:]
+            break
+
+    if target == None:
+        print >>sys.stderr, "No target set" and sys.exit(1)
+
+    # The deps target lives here
+    depstarget = os.path.basename(target) + ".pp"
+
+    cmdline += ['-showIncludes']
+    cl = subprocess.Popen(cmdline, stdout=subprocess.PIPE)
+
+    deps = set()
+    for line in cl.stdout:
+        # cl -showIncludes prefixes every header with "Note: including file:"
+        # and an indentation corresponding to the depth (which we don't need)
+        if line.startswith(CL_INCLUDES_PREFIX):
+            dep = line[len(CL_INCLUDES_PREFIX):].strip()
+            # We can't handle pathes with spaces properly in mddepend.pl, but
+            # we can assume that anything in a path with spaces is a system
+            # header and throw it away.
+            if dep.find(' ') == -1:
+                deps.add(dep)
+        else:
+            sys.stdout.write(line) # Make sure we preserve the relevant output
+                                   # from cl
+
+    ret = cl.wait()
+    if ret != 0 or target == "":
+        sys.exit(ret)
+
+    depsdir = os.path.normpath(os.path.join(os.path.dirname(target), ".deps"))
+    depstarget = os.path.join(depsdir, depstarget)
+    if not os.path.isdir(depsdir):
+        try:
+            os.makedirs(depsdir)
+        except OSError:
+            pass # This suppresses the error we get when the dir exists, at the
+                 # cost of masking failure to create the directory.  We'll just
+                 # die on the next line though, so it's not that much of a loss.
+
+    f = open(depstarget, "w")
+    for dep in sorted(deps):
+        print >>f, "%s: %s" % (target, dep)
+
+if __name__ == "__main__":
+    InvokeClWithDependencyGeneration(sys.argv[1:])