diff options
Diffstat (limited to 'git-hooks/pre-commit')
| -rwxr-xr-x | git-hooks/pre-commit | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/git-hooks/pre-commit b/git-hooks/pre-commit new file mode 100755 index 000000000000..253f2dd6654d --- /dev/null +++ b/git-hooks/pre-commit @@ -0,0 +1,187 @@ +#!/usr/bin/perl -w + +# A 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. + +use strict; +use File::Temp qw/ :mktemp /; +use File::Copy; + +$ENV{LC_ALL} = "C"; + +# attempt to fix whitespace in one file +# $1 - file to fix +# $2 - list of lines containing whitespace errors +sub fix_whitespace($$) { + my ( $file, $lines ) = @_; + + # usually we have nothing to do ;-) + return if ( keys( %{$lines} ) == 0 || + $file eq "" || + !( $file =~ /\.(c|cpp|cxx|h|hrc|hxx|idl|inl|java|map|mk|MK|pl|pm|pmk|py|sdi|sh|src|tab)/ ) ); + + open( IN, "$file" ) || die "Cannot open $file for reading"; + my ( $out, $tmpfile ) = mkstemp( "/tmp/whitespace-fixing-XXXXXX" ); + + my $line_no = 1; + while ( my $line = <IN> ) { + if ( $lines->{$line_no} && $line =~ /^(.*[^ \t])[ \t]+$/ ) { + print $out "$1\n"; + } + elsif ( $lines->{$line_no} && $line =~ /^[ \t]+$/ ) { + print $out "\n"; + } + else { + print $out $line; + } + ++$line_no; + } + close( $out ); + close( IN ); + + move( $tmpfile, $file ) or die "Cannot move '$tmpfile' to '$file'"; + + system( "git add $file" ); + print "Fixed whitespace in '$file'\n"; +} + +# go through the patch and collect lines to fix +sub check_and_fix_whitespace($) +{ + my ( $head ) = @_; + + my $file = ""; + my %lines = (); + my $line_no = 0; + my $line_max = -1; + + open( IN, "git diff-index -p --no-prefix --cached $head -- |" ) || die "Cannot get git diff-index"; + while ( my $line = <IN> ) { + if ( $line =~ /^\+\+\+ (.*)/ ) { + fix_whitespace( $file, \%lines ); + $file = $1; + %lines = (); + $line_no = 0; + $line_max = -1; + } + elsif ( $line =~ /^@@ -[0-9]+,[0-9]+ \+([0-9]+),([0-9]+) @@/ ) { + $line_no = $1; + $line_max = $line_no + $2; + } + elsif ( ( $line_no < $line_max ) && ( $line =~ /^[ +]/ ) ) { + if ( $line =~ /^\+.*[ \t]$/ ) { + $lines{$line_no} = 1; + } + ++$line_no; + } + } + fix_whitespace( $file, \%lines ); + close( IN ); +} + +# Do the work :-) + +# Initial commit: diff against an empty tree object +my $against="4b825dc642cb6eb9a060e54bf8d69288fbee4904"; +if ( system( "git rev-parse --verify HEAD >/dev/null 2>&1" ) == 0 ) { + $against="HEAD" +} + +# If you want to allow non-ascii filenames set this variable to true. +my $allownonascii=`git config hooks.allownonascii`; + +# Cross platform projects tend to avoid non-ascii filenames; prevent +# them from being added to the repository. We exploit the fact that the +# printable range starts at the space character and ends with tilde. +if ( $allownonascii ne "true" && + # Note that the use of brackets around a tr range is ok here, (it's + # even required, for portability to Solaris 10's /usr/bin/tr), since + # the square bracket bytes happen to fall in the designated range. + `git diff --cached --name-only --diff-filter=A -z $against | \ + LC_ALL=C tr -d '[ -~]\\0'` ne "" ) +{ + print <<EOM; +Error: Attempt to add a non-ascii file name." + +This can cause problems if you want to work" +with people on other platforms." + +To be portable it is advisable to rename the file ..." + +If you know what you are doing you can disable this" +check using:" + + git config hooks.allownonascii true" + +EOM + exit( 1 ); +} + +# be strict about tabs - we don't want them at all, setup your editor +# correctly ;-) +my $err_ext = ""; + +open( FILES, "git diff-index --cached --name-only $against |" ) || die "Cannot run git diff-index."; +while ( my $file = <FILES> ) { + chomp( $file ); + if ( $file =~ /\.(c|cpp|cxx|h|hrc|hxx|idl|inl|java|map|mk|MK|pmk|pl|pm|sdi|sh|src|tab|xcu|xml)$/) { + open( F, "git diff-index -p --cached $against -- '$file' |" ); + while ( my $line = <F> ) { + if ( $line =~ /^\+ *\t/ ) { + $err_ext .= "$file\n"; + last; + } + } + } + close( F ); +} +close( FILES ); + +if ( $err_ext ne "" ) { + print <<EOM; +Error: Your change in the following files introduces tabs in indentation: + +$err_ext +Please setup your editor not to use tabs, fix the files, and try again. +We have had enough trouble with tabs in the past :-( + +EOM + exit( 1 ); +} + +# check for old licenses +my $check_licenses='^+.*\(Sun Industry Standards Source License Version\|GNU Lesser General Public License Version 2.1\)'; +my $err_licenses=`git diff-index --cached --name-only $against | while read FILE ; do \ + if git diff-index -p --cached $against -- "\$FILE" | grep -qs "$check_licenses" ; then \ + echo "\$FILE" \ + fi \ + done`; +chomp( $err_licenses ); +if ( $err_licenses ne "" && $err_licenses ne "git-hooks/pre-commit" ) { + print <<EOM; +Error: Your change in the following files introduces old licenses: + +$err_licenses + +Please check with the author(s) that they agree with upgrading the +license to LGPL3, and change the license accondingly. + +EOM + exit( 1 ); +} + +# fix whitespace in code +check_and_fix_whitespace( $against ); + +# check the rest of the files +my $filter_patches=`git diff-index --check --cached $against -- | sed '/\.\(diff\|patch\):/,/.*/d'`; +chomp( $filter_patches ); +if ( $filter_patches ne "" ) { + print "WARNING:\n\n$filter_patches\n"; +} + +# all OK +exit( 0 ); +# vi:set shiftwidth=4 expandtab: |