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Diffstat (limited to 'templates/hooks--pre-commit')
| -rw-r--r-- | templates/hooks--pre-commit | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/templates/hooks--pre-commit b/templates/hooks--pre-commit new file mode 100644 index 0000000000..cb1c82d55d --- /dev/null +++ b/templates/hooks--pre-commit @@ -0,0 +1,60 @@ +#!/bin/sh +# +# An example hook script to verify what is about to be committed. +# Called by git-commit-script with no arguments. The hook should +# exit with non-zero status after issuing an appropriate message if +# it wants to stop the commit. +# +# To enable this hook, make this file executable. + +# This is slightly modified from Andrew Morton's Perfect Patch. +# Lines you introduce should not have trailing whitespace. +# Also check for an indentation that has SP before a TAB. +perl -e ' + my $fh; + my $found_bad = 0; + my $filename; + my $reported_filename = ""; + my $lineno; + sub bad_line { + my ($why, $line) = @_; + if (!$found_bad) { + print "*\n"; + print "* You have some suspicious patch lines:\n"; + print "*\n"; + $found_bad = 1; + } + if ($reported_filename ne $filename) { + print "* In $filename\n"; + $reported_filename = $filename; + } + print "* $why (line $lineno)\n$line\n"; + } + open $fh, "-|", qw(git-diff-cache -p -M --cached HEAD); + while (<$fh>) { + if (m|^diff --git a/(.*) b/\1$|) { + $filename = $1; + next; + } + if (/^@@ -\S+ \+(\d+)/) { + $lineno = $1 - 1; + next; + } + if (/^ /) { + $lineno++; + next; + } + if (s/^\+//) { + $lineno++; + chomp; + if (/\s$/) { + bad_line("trailing whitespace", $_); + } + if (/^\s* /) { + bad_line("indent SP followed by a TAB", $_); + } + } + } + exit($found_bad); +' + |