120 lines
3.3 KiB
Python
Executable file
120 lines
3.3 KiB
Python
Executable file
#!/usr/bin/env python3
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#
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# check-dco.py: validate all commits are signed off
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#
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# Copyright (C) 2020 Red Hat, Inc.
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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import os
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import os.path
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import sys
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import subprocess
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namespace = "libvirt"
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if len(sys.argv) >= 2:
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namespace = sys.argv[1]
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def get_default_branch(remote):
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info = subprocess.check_output(["git", "remote", "show", remote],
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universal_newlines=True)
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head = "HEAD branch: "
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for line in info.split("\n"):
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offset = line.find(head)
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if offset != -1:
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offset += len(head)
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return line[offset:]
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raise Exception("Cannot find default branch")
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def get_branch_commits():
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cwd = os.getcwd()
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reponame = os.path.basename(cwd)
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repourl = "https://gitlab.com/%s/%s.git" % (namespace, reponame)
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subprocess.check_call(["git", "remote", "add", "check-dco", repourl])
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try:
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main = get_default_branch("check-dco")
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subprocess.check_call(["git", "fetch", "check-dco", main],
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL)
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ancestor = subprocess.check_output(["git", "merge-base", "check-dco/" + main, "HEAD"],
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universal_newlines=True)
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ancestor = ancestor.strip()
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return (ancestor, "HEAD")
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finally:
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subprocess.check_call(["git", "remote", "rm", "check-dco"])
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def get_mergereq_commits():
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return (os.environ["CI_MERGE_REQUEST_DIFF_BASE_SHA"],
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os.environ["CI_MERGE_REQUEST_SOURCE_BRANCH_SHA"])
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if os.environ.get("CI_PIPELINE_SOURCE", "") == "merge_request_event":
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ancestor, head = get_mergereq_commits()
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else:
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ancestor, head = get_branch_commits()
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errors = False
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print("\nChecking for 'Signed-off-by: NAME <EMAIL>' on all commits since %s...\n" % ancestor)
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log = subprocess.check_output(["git", "log", "--format=%H %s", ancestor + "..." + head],
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universal_newlines=True)
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if log == "":
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commits = []
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else:
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commits = [[c[0:40], c[41:]] for c in log.strip().split("\n")]
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for sha, subject in commits:
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msg = subprocess.check_output(["git", "show", "-s", sha],
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universal_newlines=True)
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lines = msg.strip().split("\n")
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print("🔍 %s %s" % (sha, subject))
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sob = False
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for line in lines:
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if "Signed-off-by:" in line:
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sob = True
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if "localhost" in line:
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print(" ❌ FAIL: bad email in %s" % line)
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errors = True
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if not sob:
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print(" ❌ FAIL missing Signed-off-by tag")
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errors = True
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if errors:
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print("""
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❌ ERROR: One or more commits are missing a valid Signed-off-By tag.
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This project requires all contributors to assert that their contributions
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are provided in compliance with the terms of the Developer's Certificate
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of Origin 1.1 (DCO):
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https://developercertificate.org/
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To indicate acceptance of the DCO every commit must have a tag
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Signed-off-by: REAL NAME <EMAIL>
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This can be achieved by passing the "-s" flag to the "git commit" command.
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To bulk update all commits on current branch "git rebase" can be used:
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git rebase -i master -x 'git commit --amend --no-edit -s'
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""")
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sys.exit(1)
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sys.exit(0)
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