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author | H. Peter Anvin <hpa@zytor.com> | 2007-05-25 17:58:26 -0700 |
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committer | Sam Ravnborg <sam@ravnborg.org> | 2007-07-16 21:15:50 +0200 |
commit | cb3ed5b7e09c6c0462e396d55e3fecc0980a333a (patch) | |
tree | ead4dd6f67c2350096b17791d79e414c984f79f9 /scripts/cleanpatch | |
parent | d72e5edbf4d13adfe489e9e6114a4922891ddcb2 (diff) | |
download | kernel_samsung_espresso10-cb3ed5b7e09c6c0462e396d55e3fecc0980a333a.zip kernel_samsung_espresso10-cb3ed5b7e09c6c0462e396d55e3fecc0980a333a.tar.gz kernel_samsung_espresso10-cb3ed5b7e09c6c0462e396d55e3fecc0980a333a.tar.bz2 |
scripts: Make cleanfile/cleanpatch warn about long lines
Make the "cleanfile" and "cleanpatch" script warn about long lines,
by default lines whose visual width exceeds 79 characters.
Per suggestion from Auke Kok.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'scripts/cleanpatch')
-rwxr-xr-x | scripts/cleanpatch | 58 |
1 files changed, 55 insertions, 3 deletions
diff --git a/scripts/cleanpatch b/scripts/cleanpatch index a53f987..9680d03 100755 --- a/scripts/cleanpatch +++ b/scripts/cleanpatch @@ -7,7 +7,9 @@ use bytes; use File::Basename; -# +# Default options +$max_width = 79; + # Clean up space-tab sequences, either by removing spaces or # replacing them with tabs. sub clean_space_tabs($) @@ -48,9 +50,49 @@ sub clean_space_tabs($) return $lo; } +# Compute the visual width of a string +sub strwidth($) { + no bytes; # Tab alignment depends on characters + + my($li) = @_; + my($c, $i); + my $pos = 0; + my $mlen = 0; + + for ($i = 0; $i < length($li); $i++) { + $c = substr($li,$i,1); + if ($c eq "\t") { + $pos = ($pos+8) & ~7; + } elsif ($c eq "\n") { + $mlen = $pos if ($pos > $mlen); + $pos = 0; + } else { + $pos++; + } + } + + $mlen = $pos if ($pos > $mlen); + return $mlen; +} + $name = basename($0); -foreach $f ( @ARGV ) { +@files = (); + +while (defined($a = shift(@ARGV))) { + if ($a =~ /^-/) { + if ($a eq '-width' || $a eq '-w') { + $max_width = shift(@ARGV)+0; + } else { + print STDERR "Usage: $name [-width #] files...\n"; + exit 1; + } + } else { + push(@files, $a); + } +} + +foreach $f ( @files ) { print STDERR "$name: $f\n"; if (! -f $f) { @@ -86,6 +128,7 @@ foreach $f ( @ARGV ) { $in_bytes = 0; $out_bytes = 0; + $lineno = 0; @lines = (); @@ -93,10 +136,12 @@ foreach $f ( @ARGV ) { $err = 0; while ( defined($line = <FILE>) ) { + $lineno++; $in_bytes += length($line); if (!$in_hunk) { - if ($line =~ /^\@\@\s+\-([0-9]+),([0-9]+)\s+\+([0-9]+),([0-9]+)\s\@\@/) { + if ($line =~ + /^\@\@\s+\-([0-9]+),([0-9]+)\s+\+([0-9]+),([0-9]+)\s\@\@/) { $minus_lines = $2; $plus_lines = $4; if ($minus_lines || $plus_lines) { @@ -117,6 +162,13 @@ foreach $f ( @ARGV ) { $text =~ s/[ \t\r]*$//; # Remove trailing spaces $text = clean_space_tabs($text); + $l_width = strwidth($text); + if ($max_width && $l_width > $max_width) { + print STDERR + "$f:$lineno: adds line exceeds $max_width ", + "characters ($l_width)\n"; + } + push(@hunk_lines, '+'.$text); } elsif ($line =~ /^\-/) { $minus_lines--; |