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-rw-r--r--build/variables.py111
1 files changed, 111 insertions, 0 deletions
diff --git a/build/variables.py b/build/variables.py
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index 0000000000..357e05c37b
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+++ b/build/variables.py
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+# 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 os
+import subprocess
+import sys
+from datetime import datetime
+
+SOURCESTAMP_FILENAME = "sourcestamp.txt"
+
+
+def buildid_header(output):
+ buildid = os.environ.get("MOZ_BUILD_DATE")
+ if buildid and len(buildid) != 14:
+ print("Ignoring invalid MOZ_BUILD_DATE: %s" % buildid, file=sys.stderr)
+ buildid = None
+ if not buildid:
+ buildid = datetime.now().strftime("%Y%m%d%H%M%S")
+ output.write("#define MOZ_BUILDID %s\n" % buildid)
+
+
+def get_program_output(*command):
+ try:
+ with open(os.devnull) as stderr:
+ return subprocess.check_output(
+ command, stderr=stderr, universal_newlines=True
+ )
+ except Exception:
+ return ""
+
+
+def get_hg_info(workdir):
+ repo = get_program_output("hg", "-R", workdir, "path", "default")
+ if repo:
+ repo = repo.strip()
+ if repo.startswith("ssh://"):
+ repo = "https://" + repo[6:]
+ repo = repo.rstrip("/")
+
+ changeset = get_hg_changeset(workdir)
+
+ return repo, changeset
+
+
+def get_hg_changeset(path):
+ return get_program_output("hg", "-R", path, "parent", "--template={node}")
+
+
+def get_info_from_sourcestamp(sourcestamp_path):
+ """Read the repository and changelog information from the sourcestamp
+ file. This assumes that the file exists and returns the results as a list
+ (either strings or None in case of error).
+ """
+
+ # Load the content of the file.
+ lines = None
+ with open(sourcestamp_path) as f:
+ lines = f.read().splitlines()
+
+ # Parse the repo and the changeset. The sourcestamp file is supposed to
+ # contain two lines: the first is the build id and the second is the source
+ # URL.
+ if len(lines) != 2 or not lines[1].startswith("http"):
+ # Just return if the file doesn't contain what we expect.
+ return None, None
+
+ # Return the repo and the changeset.
+ return lines[1].split("/rev/")
+
+
+def source_repo_header(output):
+ # We allow the source repo and changeset to be specified via the
+ # environment (see configure)
+ import buildconfig
+
+ repo = buildconfig.substs.get("MOZ_SOURCE_REPO")
+ changeset = buildconfig.substs.get("MOZ_SOURCE_CHANGESET")
+ source = ""
+
+ if not repo:
+ sourcestamp_path = os.path.join(buildconfig.topsrcdir, SOURCESTAMP_FILENAME)
+ if os.path.exists(os.path.join(buildconfig.topsrcdir, ".hg")):
+ repo, changeset = get_hg_info(buildconfig.topsrcdir)
+ elif os.path.exists(sourcestamp_path):
+ repo, changeset = get_info_from_sourcestamp(sourcestamp_path)
+ elif not changeset:
+ changeset = get_hg_changeset(buildconfig.topsrcdir)
+ if not changeset:
+ raise Exception(
+ "could not resolve changeset; " "try setting MOZ_SOURCE_CHANGESET"
+ )
+
+ if changeset:
+ output.write("#define MOZ_SOURCE_STAMP %s\n" % changeset)
+
+ if repo and buildconfig.substs.get("MOZ_INCLUDE_SOURCE_INFO"):
+ source = "%s/rev/%s" % (repo, changeset)
+ output.write("#define MOZ_SOURCE_REPO %s\n" % repo)
+ output.write("#define MOZ_SOURCE_URL %s\n" % source)
+
+
+def main(args):
+ if len(args):
+ func = globals().get(args[0])
+ if func:
+ return func(sys.stdout, *args[1:])
+
+
+if __name__ == "__main__":
+ sys.exit(main(sys.argv[1:]))