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-rwxr-xr-xmisc/cleanpatch258
1 files changed, 0 insertions, 258 deletions
diff --git a/misc/cleanpatch b/misc/cleanpatch
deleted file mode 100755
index 9680d03a..00000000
--- a/misc/cleanpatch
+++ /dev/null
@@ -1,258 +0,0 @@
-#!/usr/bin/perl -w
-#
-# Clean a patch file -- or directory of patch files -- of stealth whitespace.
-# WARNING: this can be a highly destructive operation. Use with caution.
-#
-
-use bytes;
-use File::Basename;
-
-# Default options
-$max_width = 79;
-
-# Clean up space-tab sequences, either by removing spaces or
-# replacing them with tabs.
-sub clean_space_tabs($)
-{
- no bytes; # Tab alignment depends on characters
-
- my($li) = @_;
- my($lo) = '';
- my $pos = 0;
- my $nsp = 0;
- my($i, $c);
-
- for ($i = 0; $i < length($li); $i++) {
- $c = substr($li, $i, 1);
- if ($c eq "\t") {
- my $npos = ($pos+$nsp+8) & ~7;
- my $ntab = ($npos >> 3) - ($pos >> 3);
- $lo .= "\t" x $ntab;
- $pos = $npos;
- $nsp = 0;
- } elsif ($c eq "\n" || $c eq "\r") {
- $lo .= " " x $nsp;
- $pos += $nsp;
- $nsp = 0;
- $lo .= $c;
- $pos = 0;
- } elsif ($c eq " ") {
- $nsp++;
- } else {
- $lo .= " " x $nsp;
- $pos += $nsp;
- $nsp = 0;
- $lo .= $c;
- $pos++;
- }
- }
- $lo .= " " x $nsp;
- 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($0);
-
-@files = ();
-
-while (defined($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 $f) {
- print STDERR "$f: not a file\n";
- next;
- }
-
- if (!open(FILE, '+<', $f)) {
- print STDERR "$name: Cannot open file: $f: $!\n";
- next;
- }
-
- binmode FILE;
-
- # First, verify that it is not a binary file; consider any file
- # with a zero byte to be a binary file. Is there any better, or
- # additional, heuristic that should be applied?
- $is_binary = 0;
-
- while (read(FILE, $data, 65536) > 0) {
- if ($data =~ /\0/) {
- $is_binary = 1;
- last;
- }
- }
-
- if ($is_binary) {
- print STDERR "$name: $f: binary file\n";
- next;
- }
-
- seek(FILE, 0, 0);
-
- $in_bytes = 0;
- $out_bytes = 0;
- $lineno = 0;
-
- @lines = ();
-
- $in_hunk = 0;
- $err = 0;
-
- while ( defined($line = <FILE>) ) {
- $lineno++;
- $in_bytes += length($line);
-
- if (!$in_hunk) {
- if ($line =~
- /^\@\@\s+\-([0-9]+),([0-9]+)\s+\+([0-9]+),([0-9]+)\s\@\@/) {
- $minus_lines = $2;
- $plus_lines = $4;
- if ($minus_lines || $plus_lines) {
- $in_hunk = 1;
- @hunk_lines = ($line);
- }
- } else {
- push(@lines, $line);
- $out_bytes += length($line);
- }
- } else {
- # We're in a hunk
-
- if ($line =~ /^\+/) {
- $plus_lines--;
-
- $text = substr($line, 1);
- $text =~ s/[ \t\r]*$//; # 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--;
- push(@hunk_lines, $line);
- } elsif ($line =~ /^ /) {
- $plus_lines--;
- $minus_lines--;
- push(@hunk_lines, $line);
- } else {
- print STDERR "$name: $f: malformed patch\n";
- $err = 1;
- last;
- }
-
- if ($plus_lines < 0 || $minus_lines < 0) {
- print STDERR "$name: $f: malformed patch\n";
- $err = 1;
- last;
- } elsif ($plus_lines == 0 && $minus_lines == 0) {
- # End of a hunk. Process this hunk.
- my $i;
- my $l;
- my @h = ();
- my $adj = 0;
- my $done = 0;
-
- for ($i = scalar(@hunk_lines)-1; $i > 0; $i--) {
- $l = $hunk_lines[$i];
- if (!$done && $l eq "+\n") {
- $adj++; # Skip this line
- } elsif ($l =~ /^[ +]/) {
- $done = 1;
- unshift(@h, $l);
- } else {
- unshift(@h, $l);
- }
- }
-
- $l = $hunk_lines[0]; # Hunk header
- undef @hunk_lines; # Free memory
-
- if ($adj) {
- die unless
- ($l =~ /^\@\@\s+\-([0-9]+),([0-9]+)\s+\+([0-9]+),([0-9]+)\s\@\@(.*)$/);
- my $mstart = $1;
- my $mlin = $2;
- my $pstart = $3;
- my $plin = $4;
- my $tail = $5; # doesn't include the final newline
-
- $l = sprintf("@@ -%d,%d +%d,%d @@%s\n",
- $mstart, $mlin, $pstart, $plin-$adj,
- $tail);
- }
- unshift(@h, $l);
-
- # Transfer to the output array
- foreach $l (@h) {
- $out_bytes += length($l);
- push(@lines, $l);
- }
-
- $in_hunk = 0;
- }
- }
- }
-
- if ($in_hunk) {
- print STDERR "$name: $f: malformed patch\n";
- $err = 1;
- }
-
- if (!$err) {
- if ($in_bytes != $out_bytes) {
- # Only write to the file if changed
- seek(FILE, 0, 0);
- print FILE @lines;
-
- if ( !defined($where = tell(FILE)) ||
- !truncate(FILE, $where) ) {
- die "$name: Failed to truncate modified file: $f: $!\n";
- }
- }
- }
-
- close(FILE);
-}