1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
#!/usr/bin/env python3
import re
import subprocess
import sys
verbosity = 0 # Show what's going on, 0 1 or 2.
suggestions = 1 # Set to 0 to not include lengthy suggestions in error messages.
ignore_prefixes = []
def verbose(*args):
if verbosity:
print(*args)
def very_verbose(*args):
if verbosity > 1:
print(*args)
class ErrorCollection:
# Track errors and warnings as the program runs
def __init__(self):
self.has_errors = False
self.has_warnings = False
self.prefix = ""
def error(self, text):
print("error: {}{}".format(self.prefix, text))
self.has_errors = True
def warning(self, text):
print("warning: {}{}".format(self.prefix, text))
self.has_warnings = True
def git_log(pretty_format, *args):
# Delete pretty argument from user args so it doesn't interfere with what we do.
args = ["git", "log"] + [arg for arg in args if "--pretty" not in args]
args.append("--pretty=format:" + pretty_format)
very_verbose("git_log", *args)
# Generator yielding each output line.
for line in subprocess.Popen(args, stdout=subprocess.PIPE).stdout:
yield line.decode().rstrip("\r\n")
def diagnose_subject_line(subject_line, subject_line_format, err):
err.error('Subject line: "' + subject_line + '"')
if not subject_line.endswith("."):
err.error('* must end with "."')
if not re.match(r"^[^!]+: ", subject_line):
err.error('* must start with "path: "')
if re.match(r"^[^!]+: *$", subject_line):
err.error("* must contain a subject after the path.")
m = re.match(r"^[^!]+: ([a-z][^ ]*)", subject_line)
if m:
err.error('* first word of subject ("{}") must be capitalised.'.format(m.group(1)))
if re.match(r"^[^!]+: [^ ]+$", subject_line):
err.error("* subject must contain more than one word.")
err.error("* must match: " + repr(subject_line_format))
err.error('* Example: "py/runtime: Add support for foo to bar."')
def verify(sha, err):
verbose("verify", sha)
err.prefix = "commit " + sha + ": "
# Author and committer email.
for line in git_log("%ae%n%ce", sha, "-n1"):
very_verbose("email", line)
if "noreply" in line:
err.error("Unwanted email address: " + line)
# Message body.
raw_body = list(git_log("%B", sha, "-n1"))
verify_message_body(raw_body, err)
def verify_message_body(raw_body, err):
if not raw_body:
err.error("Message is empty")
return
# Subject line.
subject_line = raw_body[0]
for prefix in ignore_prefixes:
if subject_line.startswith(prefix):
verbose("Skipping ignored commit message")
return
very_verbose("subject_line", subject_line)
subject_line_format = r"^[^!]+: [A-Z]+.+ .+\.$"
if not re.match(subject_line_format, subject_line):
diagnose_subject_line(subject_line, subject_line_format, err)
if len(subject_line) >= 73:
err.error("Subject line must be 72 or fewer characters: " + subject_line)
# Second one divides subject and body.
if len(raw_body) > 1 and raw_body[1]:
err.error("Second message line must be empty: " + raw_body[1])
# Message body lines.
for line in raw_body[2:]:
# Long lines with URLs are exempt from the line length rule.
if len(line) >= 76 and "://" not in line:
err.error("Message lines should be 75 or less characters: " + line)
if not raw_body[-1].startswith("Signed-off-by: ") or "@" not in raw_body[-1]:
err.error('Message must be signed-off. Use "git commit -s".')
def run(args):
verbose("run", *args)
err = ErrorCollection()
if "--check-file" in args:
filename = args[-1]
verbose("checking commit message from", filename)
with open(args[-1]) as f:
# Remove comment lines as well as any empty lines at the end.
lines = [line.rstrip("\r\n") for line in f if not line.startswith("#")]
while not lines[-1]:
lines.pop()
verify_message_body(lines, err)
else: # Normal operation, pass arguments to git log
for sha in git_log("%h", *args):
verify(sha, err)
if err.has_errors or err.has_warnings:
if suggestions:
print("See https://github.com/micropython/micropython/blob/master/CODECONVENTIONS.md")
else:
print("ok")
if err.has_errors:
sys.exit(1)
def show_help():
print("usage: verifygitlog.py [-v -n -h --check-file] ...")
print("-v : increase verbosity, can be specified multiple times")
print("-n : do not print multi-line suggestions")
print("-h : print this help message and exit")
print(
"--check-file : Pass a single argument which is a file containing a candidate commit message"
)
print(
"--ignore-rebase : Skip checking commits with git rebase autosquash prefixes or WIP as a prefix"
)
print("... : arguments passed to git log to retrieve commits to verify")
print(" see https://www.git-scm.com/docs/git-log")
print(" passing no arguments at all will verify all commits")
print("examples:")
print("verifygitlog.py -n10 # Check last 10 commits")
print("verifygitlog.py -v master..HEAD # Check commits since master")
if __name__ == "__main__":
args = sys.argv[1:]
verbosity = args.count("-v")
suggestions = args.count("-n") == 0
if "--ignore-rebase" in args:
args.remove("--ignore-rebase")
ignore_prefixes = ["squash!", "fixup!", "amend!", "WIP"]
if "-h" in args:
show_help()
else:
args = [arg for arg in args if arg not in ["-v", "-n", "-h"]]
run(args)
|
