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Improve commit-msg messages and autosquash

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Problem reported by Michal Nazarewicz in Bug#19337.
* build-aux/git-hooks/commit-msg: Add "commit message" to
diagnostics.  Distinguish better between tabs and other
unprintable chars in diagnostics.  Don't complain if a prefix
"fixup! " or "squash! " makes a summary line too long.
This commit is contained in:
Paul Eggert 2014-12-10 20:44:35 -08:00
parent 0c2f254bc3
commit 9ac0332030
2 changed files with 34 additions and 14 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2014-12-11 Paul Eggert <eggert@cs.ucla.edu>
Improve commit-msg messages and autosquash
Problem reported by Michal Nazarewicz in Bug#19337.
* build-aux/git-hooks/commit-msg: Add "commit message" to
diagnostics. Distinguish better between tabs and other
unprintable chars in diagnostics. Don't complain if a prefix
"fixup! " or "squash! " makes a summary line too long.
2014-12-08 Paul Eggert <eggert@cs.ucla.edu>
Port commit-message checking to FreeBSD 9.

39
build-aux/git-hooks/commit-msg
View file

@ -49,7 +49,7 @@ exec $awk '
/^#/ { next }
!/^.*$/ {
print "Invalid character (not UTF-8)"
print "Invalid character (not UTF-8) in commit message"
status = 1
}
@ -57,39 +57,50 @@ exec $awk '
{ nlines++ }
nlines == 1 && /^[[:space:]]/ {
print "White space at start of first line"
status = 1
nlines == 1 {
# Ignore special markers used by "git rebase --autosquash".
if (! sub(/^fixup! /, ""))
sub(/^squash! /, "")
if (/^[[:space:]]/) {
print "White space at start of commit message'\''s first line"
status = 1
}
}
nlines == 2 && /[^[:space:]]/ {
print "Nonempty second line"
status = 1
}
/[^[:print:]]/ {
print "Unprintable character; please use spaces instead of tabs"
print "Nonempty second line in commit message"
status = 1
}
72 < length && /[[:space:]]/ {
print "Line longer than 72 characters"
print "Line longer than 72 characters in commit message"
status = 1
}
140 < length {
print "Word longer than 140 characters"
print "Word longer than 140 characters in commit message"
status = 1
}
/^Signed-off-by: / {
print "'\''Signed-off-by:'\'' present"
print "'\''Signed-off-by:'\'' in commit message"
status = 1
}
/[^[:print:]]/ {
if (gsub(/\t/, "")) {
print "Tab in commit message; please use spaces instead"
}
if (/[^[:print:]]/) {
print "Unprintable character in commit message"
}
status = 1
}
END {
if (nlines == 0) {
print "Empty change log entry"
print "Empty commit message"
status = 1
}
exit status