blob: 6ff59102fd79ebcb79360f2646afad26b3dc5b1e (
plain)
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
|
#!/bin/sh
# Check the file list of GNU Emacs change log entries before pushing.
# Copyright 2023 Free Software Foundation, Inc.
# This file is part of GNU Emacs.
# GNU Emacs 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, either version 3 of the License, or
# (at your option) any later version.
# GNU Emacs 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.
# You should have received a copy of the GNU General Public License
# along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
### Commentary:
# This hook runs before pushing a series of commits and checks that
# the files mentioned in each commit message match the diffs. This
# helps ensure that the resulting change logs are correct, which
# should prevent errors when generating etc/AUTHORS.
# These checks also happen in the "post-commit" hook (which see), but
# that hook can't abort a commit; it just advises the committer to fix
# the commit so that this hook runs without errors.
### Code:
# Prefer gawk if available, as it handles NUL bytes properly.
if type gawk >/dev/null 2>&1; then
awk="gawk"
else
awk="awk"
fi
# Standard input receives lines of the form:
# <local ref> SP <local sha> SP <remote ref> SP <remote sha> LF
$awk -v origin_name="$1" '
# If the local SHA is all zeroes, ignore it.
$2 ~ /^0{40}$/ {
next
}
# Check any lines with a valid local SHA and whose remote ref is
# master or an emacs-NN release branch. (We want to avoid checking
# feature or scratch branches here.)
$2 ~ /^[a-z0-9]{40}$/ && $3 ~ /^refs\/heads\/(master|emacs-[0-9]+)$/ {
newref = $2
# If the remote SHA is all zeroes, this is a new object to be
# pushed (likely a branch)...
if ($4 ~ /^0{40}$/) {
back = 0
# ... Go backwards until we find a SHA on an origin branch.
# Stop trying after 1000 commits, just in case...
for (back = 0; back < 1000; back++) {
cmd = ("git branch -r -l '\''" origin_name "/*'\''" \
" --contains " newref "~" back)
rv = (cmd | getline)
close(cmd)
if (rv > 0)
break;
}
cmd = ("git rev-parse " newref "~" back)
cmd | getline oldref
if (!(oldref ~ /^[a-z0-9]{40}$/)) {
# The SHA is misformatted! Skip this line.
next
}
close(cmd)
} else if ($4 ~ /^[a-z0-9]{40}$/) {
oldref = $4
} else {
# The SHA is misformatted! Skip this line.
next
}
# Print every SHA after oldref, up to (and including) newref.
system("git rev-list --first-parent --reverse " oldref ".." newref)
}
' | $awk -v reason=pre-push -f ${GIT_DIR:-.git}/hooks/commit-msg-files.awk
|
