1 files changed, 126 insertions, 0 deletions
diff --git a/util/gitconfig/cborg2cros.py b/util/gitconfig/cborg2cros.py
new file mode 100755
index 0000000000..133b00a398
--- /dev/null
+++ b/util/gitconfig/cborg2cros.py
@@ -0,0 +1,126 @@
+#!/usr/bin/env python
+
+# This file is part of the coreboot project.
+#
+# Copyright (C) 2016 Google, Inc.
+#
+# 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; version 2 of the License.
+#
+# 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.
+
+import sys
+import re
+import subprocess
+
+# Regular expression patterns
+pat_change_id = re.compile('^Change-Id: (.*)$')
+pat_orig_lines = re.compile('^(Signed-off-by|Reviewed-on|Reviewed-by)')
+pat_uninteresting = re.compile('^Tested-by')
+pat_quotes = re.compile('"')
+pat_leading_space = re.compile('^ ')
+pat_bug_line = re.compile('^bug\s*=', re.IGNORECASE)
+pat_branch_line = re.compile('branch\s*=', re.IGNORECASE)
+pat_test_line = re.compile('test\s*=', re.IGNORECASE)
+
+def main():
+    branch = ""
+    new_commit_message = ""
+    change_id = ""
+    commit_id = ""
+    bug_line = "BUG=None\n"
+    branch_line = "BRANCH=None\n"
+    test_line = "TEST=Build tested at coreboot.org\n"
+
+    # Check command line arguments
+    if len(sys.argv) > 1:
+        if sys.argv[1] == "-h" or sys.argv[1] == "--help":
+            print "Update the commit message to submit to the Chrome OS tree."
+            print "Usage: " + sys.argv[1] + " [Remote branch]\n"
+        else:
+            branch = sys.argv[1]
+    else:
+        branch = "cborg/master"
+
+    # Get the last commit message, then loop through looking at each line
+    commit_message = subprocess.check_output(["git", "log", "-n1"]).split("\n")
+    for line in commit_message:
+
+        # Skip the initial few lines of the commit message
+        m = pat_leading_space.match(line)
+        if not m:
+            continue
+
+        # Remove initial whitespace
+        line = line.lstrip(' ')
+
+        # Add the 'UPSTREAM' comment to the subject line
+        if len(new_commit_message) == 0:
+            new_commit_message += "UPSTREAM: " + line + "\n"
+            continue
+
+        # If we've found a TEST, BRANCH, or BUG line, mark it as found
+        if pat_test_line.match(line):
+            test_line = ""
+        if pat_bug_line.match(line):
+            bug_line = ""
+        if pat_branch_line.match(line):
+            branch_line = ""
+
+        # Grab the Change-Id
+        chid = pat_change_id.match(line)
+        if chid:
+            change_id = chid.group(1)
+
+        # Add 'Original-' to all of the coreboot.org gerrit messages
+        grrt = pat_orig_lines.match(line)
+        if grrt:
+            line = "Original-" + line
+
+        # if we've reached the end of the real commit message text and we don't
+        # have the required TEST= BUG= and BRANCH= lines, add them.
+        if (chid or grrt) and (bug_line or branch_line or test_line):
+            new_commit_message += bug_line + branch_line + test_line + "\n"
+            bug_line = branch_line = test_line = ""
+
+        # Remove uninteresting gerrit messages
+        if pat_uninteresting.match(line):
+            continue
+
+        # Add the current line to the updated commit message
+        new_commit_message += line + "\n"
+
+    # Error out if no Change-Id was located
+    if not change_id:
+        print "Error: No Change-Id found"
+        sys.exit(1)
+
+    # Get the Commit ID based on the Change-Id and the branch.
+    # Error out if git returns an error
+    try:
+        commit_id = subprocess.check_output(["git", "log", "-n1", "--grep", change_id, '--pretty=%H', branch, "--"]).rstrip('\n')
+    except:
+        print "Error: invalid branch - " + branch + ".\n"
+        sys.exit(1)
+
+    # To find the Commit-Id, we've looked through the git log for a particular Change-Id
+    # Error out if the Commit-Id wasn't found, with the message that we couldn't find the Change-Id
+    if not commit_id:
+        print "Error: Could not find Change-Id: " + change_id + " in branch " + branch + ".\n"
+        sys.exit(1)
+
+    # Add the Commit-Id that this change came from to the new commit message.
+    new_commit_message += "(cherry-picked from commit " + commit_id + ")\n"
+
+    # Update the commit message
+    amend_output = subprocess.check_output(["git", "commit", "-s", "--amend", "-m", new_commit_message ])
+
+    print "----------\n"
+    print amend_output
+
+if __name__ == "__main__":
+    main()