1 files changed, 104 insertions, 0 deletions
diff --git a/dom/media/webrtc/third_party_build/write_default_config.py b/dom/media/webrtc/third_party_build/write_default_config.py
new file mode 100644
index 0000000000..204789e052
--- /dev/null
+++ b/dom/media/webrtc/third_party_build/write_default_config.py
@@ -0,0 +1,104 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+import argparse
+import sys
+from string import Template
+
+sys.path.insert(0, "./dom/media/webrtc/third_party_build")
+import lookup_branch_head
+
+text = """#!/bin/bash
+
+# Edit {path-to} to match the location of your copy of Mozilla's
+# fork of libwebrtc (at https://github.com/mozilla/libwebrtc).
+export MOZ_LIBWEBRTC_SRC=$$STATE_DIR/moz-libwebrtc
+
+# Fast-forwarding each Chromium version of libwebrtc should be done
+# under a separate bugzilla bug.  This bug number is used when crafting
+# the commit summary as each upstream commit is vendored into the
+# mercurial repository.  The bug used for the v106 fast-forward was
+# 1800920.
+export MOZ_FASTFORWARD_BUG="$bugnum"
+
+# MOZ_NEXT_LIBWEBRTC_MILESTONE and MOZ_NEXT_FIREFOX_REL_TARGET are
+# not used during fast-forward processing, but facilitate generating this
+# default config.  To generate an default config for the next update, run
+# bash dom/media/webrtc/third_party_build/update_default_config_env.sh
+export MOZ_NEXT_LIBWEBRTC_MILESTONE=$m2
+export MOZ_NEXT_FIREFOX_REL_TARGET=$t2
+
+# For Chromium release branches, see:
+# https://chromiumdash.appspot.com/branches
+
+# Chromium's v$m1 release branch was $bh1.  This is used to pre-stack
+# the previous release branch's commits onto the appropriate base commit
+# (the first common commit between trunk and the release branch).
+export MOZ_PRIOR_UPSTREAM_BRANCH_HEAD_NUM="$bh1"
+
+# New target release branch for v$m2 is branch-heads/$bh2.  This is used
+# to calculate the next upstream commit.
+export MOZ_TARGET_UPSTREAM_BRANCH_HEAD="branch-heads/$bh2"
+
+# For local development 'mozpatches' is fine for a branch name, but when
+# pushing the patch stack to github, it should be named something like
+# 'moz-mods-chr$m2-for-rel$t2'.
+export MOZ_LIBWEBRTC_BRANCH="mozpatches"
+
+# After elm has been merged to mozilla-central, the patch stack in
+# moz-libwebrtc should be pushed to github.  The script
+# push_official_branch.sh uses this branch name when pushing to the
+# public repo.
+export MOZ_LIBWEBRTC_OFFICIAL_BRANCH="moz-mods-chr$m2-for-rel$t2"
+"""
+
+
+def build_default_config_env(bug_number, milestone, target):
+    prior_branch_head = lookup_branch_head.get_branch_head(milestone)
+    if prior_branch_head is None:
+        sys.exit("error: chromium milestone '{}' is not found.".format(milestone))
+    new_branch_head = lookup_branch_head.get_branch_head(milestone + 1)
+    if new_branch_head is None:
+        sys.exit(
+            "error: next chromium milestone '{}' is not found.".format(milestone + 1)
+        )
+
+    s = Template(text)
+    return s.substitute(
+        bugnum=bug_number,
+        m1=milestone,
+        m2=milestone + 1,
+        t2=target + 1,
+        bh1=prior_branch_head,
+        bh2=new_branch_head,
+    )
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(
+        description="Updates the default_config_env file for new release/milestone"
+    )
+    parser.add_argument(
+        "--bug-number",
+        required=True,
+        type=int,
+        help="integer Bugzilla number (example: 1800920)",
+    )
+    parser.add_argument(
+        "--milestone",
+        required=True,
+        type=int,
+        help="integer chromium milestone (example: 106)",
+    )
+    parser.add_argument(
+        "--release-target",
+        required=True,
+        type=int,
+        help="integer firefox release (example: 110)",
+    )
+    args = parser.parse_args()
+
+    print(
+        build_default_config_env(args.bug_number, args.milestone, args.release_target),
+        end="",
+    )