| #!/bin/sh |
| # |
| # An example hook script to verify what is about to be committed. |
| # Called by git-commit 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. |
| |
| if git-rev-parse --verify HEAD 2>/dev/null |
| then |
| git-diff-index -p -M --cached HEAD |
| else |
| # NEEDSWORK: we should produce a diff with an empty tree here |
| # if we want to do the same verification for the initial import. |
| : |
| fi | |
| perl -e ' |
| my $found_bad = 0; |
| my $filename; |
| my $reported_filename = ""; |
| my $lineno; |
| sub bad_line { |
| my ($why, $line) = @_; |
| if (!$found_bad) { |
| print STDERR "*\n"; |
| print STDERR "* You have some suspicious patch lines:\n"; |
| print STDERR "*\n"; |
| $found_bad = 1; |
| } |
| if ($reported_filename ne $filename) { |
| print STDERR "* In $filename\n"; |
| $reported_filename = $filename; |
| } |
| print STDERR "* $why (line $lineno)\n"; |
| print STDERR "$filename:$lineno:$line\n"; |
| } |
| while (<>) { |
| 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); |
| ' |
| |