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checkpatch: add ability to insert and delete lines to patch/file
This can be valuable to insert or delete blank lines as well as fix misplaced brace or else uses. Store indexes of lines to be added/deleted and the new lines. When creating the --fix file, insert or delete the appropriate lines and update the patch range information. Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@canonical.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches
Linus Torvalds
parent
194f66fc95
commit
d752fcc88b
@ -583,6 +583,8 @@ $chk_signoff = 0 if ($file);
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my @rawlines = ();
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my @lines = ();
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my @fixed = ();
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my @fixed_inserted = ();
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my @fixed_deleted = ();
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my $fixlinenr = -1;
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my $vname;
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@ -613,6 +615,8 @@ for my $filename (@ARGV) {
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@rawlines = ();
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@lines = ();
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@fixed = ();
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@fixed_inserted = ();
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@fixed_deleted = ();
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$fixlinenr = -1;
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}
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@ -1526,6 +1530,69 @@ sub report_dump {
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our @report;
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}
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sub fixup_current_range {
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my ($lineRef, $offset, $length) = @_;
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if ($$lineRef =~ /^\@\@ -\d+,\d+ \+(\d+),(\d+) \@\@/) {
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my $o = $1;
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my $l = $2;
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my $no = $o + $offset;
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my $nl = $l + $length;
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$$lineRef =~ s/\+$o,$l \@\@/\+$no,$nl \@\@/;
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}
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}
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sub fix_inserted_deleted_lines {
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my ($linesRef, $insertedRef, $deletedRef) = @_;
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my $range_last_linenr = 0;
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my $delta_offset = 0;
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my $old_linenr = 0;
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my $new_linenr = 0;
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my $next_insert = 0;
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my $next_delete = 0;
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my @lines = ();
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my $inserted = @{$insertedRef}[$next_insert++];
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my $deleted = @{$deletedRef}[$next_delete++];
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foreach my $old_line (@{$linesRef}) {
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my $save_line = 1;
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my $line = $old_line; #don't modify the array
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if ($line =~ /^(?:\+\+\+\|\-\-\-)\s+\S+/) { #new filename
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$delta_offset = 0;
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} elsif ($line =~ /^\@\@ -\d+,\d+ \+\d+,\d+ \@\@/) { #new hunk
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$range_last_linenr = $new_linenr;
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fixup_current_range(\$line, $delta_offset, 0);
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}
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while (defined($deleted) && ${$deleted}{'LINENR'} == $old_linenr) {
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$deleted = @{$deletedRef}[$next_delete++];
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$save_line = 0;
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fixup_current_range(\$lines[$range_last_linenr], $delta_offset--, -1);
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}
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while (defined($inserted) && ${$inserted}{'LINENR'} == $old_linenr) {
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push(@lines, ${$inserted}{'LINE'});
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$inserted = @{$insertedRef}[$next_insert++];
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$new_linenr++;
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fixup_current_range(\$lines[$range_last_linenr], $delta_offset++, 1);
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}
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if ($save_line) {
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push(@lines, $line);
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$new_linenr++;
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}
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$old_linenr++;
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}
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return @lines;
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}
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sub ERROR {
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my ($type, $msg) = @_;
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@ -2377,16 +2444,31 @@ sub process {
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$line =~ /^\+\s*(?:static\s+)?[A-Z_]*ATTR/ ||
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$line =~ /^\+\s*DECLARE/ ||
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$line =~ /^\+\s*__setup/)) {
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CHK("LINE_SPACING",
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"Please use a blank line after function/struct/union/enum declarations\n" . $hereprev);
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if (CHK("LINE_SPACING",
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"Please use a blank line after function/struct/union/enum declarations\n" . $hereprev) &&
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$fix) {
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my $inserted = {
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LINENR => $fixlinenr,
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LINE => "\+",
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};
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push(@fixed_inserted, $inserted);
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}
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}
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# check for multiple consecutive blank lines
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if ($prevline =~ /^[\+ ]\s*$/ &&
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$line =~ /^\+\s*$/ &&
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$last_blank_line != ($linenr - 1)) {
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CHK("LINE_SPACING",
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"Please don't use multiple blank lines\n" . $hereprev);
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if (CHK("LINE_SPACING",
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"Please don't use multiple blank lines\n" . $hereprev) &&
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$fix) {
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my $deleted = {
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LINENR => $fixlinenr,
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LINE => $rawline,
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};
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push(@fixed_deleted, $deleted);
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}
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$last_blank_line = $linenr;
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}
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@ -2424,8 +2506,15 @@ sub process {
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$sline =~ /^\+\s+\(?\s*(?:$Compare|$Assignment|$Operators)/) &&
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# indentation of previous and current line are the same
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(($prevline =~ /\+(\s+)\S/) && $sline =~ /^\+$1\S/)) {
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WARN("LINE_SPACING",
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"Missing a blank line after declarations\n" . $hereprev);
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if (WARN("LINE_SPACING",
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"Missing a blank line after declarations\n" . $hereprev) &&
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$fix) {
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my $inserted = {
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LINENR => $fixlinenr,
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LINE => "\+",
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};
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push(@fixed_inserted, $inserted);
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}
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}
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# check for spaces at the beginning of a line.
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@ -2627,7 +2716,7 @@ sub process {
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#print "realcnt<$realcnt> ctx_cnt<$ctx_cnt>\n";
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#print "pre<$pre_ctx>\nline<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>\n";
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if ($ctx !~ /{\s*/ && defined($lines[$ctx_ln -1]) && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
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if ($ctx !~ /{\s*/ && defined($lines[$ctx_ln - 1]) && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
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ERROR("OPEN_BRACE",
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"that open brace { should be on the previous line\n" .
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"$here\n$ctx\n$rawlines[$ctx_ln - 1]\n");
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@ -2777,8 +2866,34 @@ sub process {
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# check for initialisation to aggregates open brace on the next line
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if ($line =~ /^.\s*{/ &&
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$prevline =~ /(?:^|[^=])=\s*$/) {
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ERROR("OPEN_BRACE",
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"that open brace { should be on the previous line\n" . $hereprev);
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if (ERROR("OPEN_BRACE",
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"that open brace { should be on the previous line\n" . $hereprev) &&
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$fix && $prevline =~ /^\+/) {
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my $deleted = {
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LINENR => $fixlinenr - 1,
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LINE => $prevrawline,
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};
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push(@fixed_deleted, $deleted);
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$deleted = {
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LINENR => $fixlinenr,
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LINE => $rawline,
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};
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push(@fixed_deleted, $deleted);
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my $fixedline = $prevrawline;
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$fixedline =~ s/\s*=\s*$/ = {/;
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my $inserted = {
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LINENR => $fixlinenr,
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LINE => $fixedline,
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};
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push(@fixed_inserted, $inserted);
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$fixedline = $line;
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$fixedline =~ s/^(.\s*){\s*/$1/;
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$inserted = {
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LINENR => $fixlinenr,
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LINE => $fixedline,
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};
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push(@fixed_inserted, $inserted);
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}
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}
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#
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@ -4900,12 +5015,16 @@ sub process {
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hash_show_words(\%use_type, "Used");
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hash_show_words(\%ignore_type, "Ignored");
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if ($clean == 0 && $fix && "@rawlines" ne "@fixed") {
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if ($clean == 0 && $fix &&
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("@rawlines" ne "@fixed" ||
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$#fixed_inserted >= 0 || $#fixed_deleted >= 0)) {
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my $newfile = $filename;
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$newfile .= ".EXPERIMENTAL-checkpatch-fixes" if (!$fix_inplace);
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my $linecount = 0;
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my $f;
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@fixed = fix_inserted_deleted_lines(\@fixed, \@fixed_inserted, \@fixed_deleted);
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open($f, '>', $newfile)
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or die "$P: Can't open $newfile for write\n";
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foreach my $fixed_line (@fixed) {
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@ -4913,7 +5032,7 @@ sub process {
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if ($file) {
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if ($linecount > 3) {
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$fixed_line =~ s/^\+//;
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print $f $fixed_line. "\n";
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print $f $fixed_line . "\n";
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}
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} else {
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print $f $fixed_line . "\n";
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