117 lines
2.4 KiB
Perl
Executable File
117 lines
2.4 KiB
Perl
Executable File
#!/usr/bin/env perl
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# SPDX-License-Identifier: GPL-2.0
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#
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# Treewide grep for references to files under Documentation, and report
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# non-existing files in stderr.
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use warnings;
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use strict;
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use Getopt::Long qw(:config no_auto_abbrev);
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my $scriptname = $0;
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$scriptname =~ s,.*/([^/]+/),$1,;
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# Parse arguments
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my $help = 0;
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my $fix = 0;
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GetOptions(
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'fix' => \$fix,
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'h|help|usage' => \$help,
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);
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if ($help != 0) {
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print "$scriptname [--help] [--fix-rst]\n";
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exit -1;
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}
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# Step 1: find broken references
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print "Finding broken references. This may take a while... " if ($fix);
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my %broken_ref;
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open IN, "git grep 'Documentation/'|"
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or die "Failed to run git grep";
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while (<IN>) {
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next if (!m/^([^:]+):(.*)/);
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my $f = $1;
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my $ln = $2;
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# Makefiles contain nasty expressions to parse docs
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next if ($f =~ m/Makefile/);
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# Skip this script
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next if ($f eq $scriptname);
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if ($ln =~ m,\b(\S*)(Documentation/[A-Za-z0-9\_\.\,\~/\*+-]*),) {
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my $prefix = $1;
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my $ref = $2;
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my $base = $2;
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$ref =~ s/[\,\.]+$//;
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my $fulref = "$prefix$ref";
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$fulref =~ s/^(\<file|ref)://;
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$fulref =~ s/^[\'\`]+//;
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$fulref =~ s,^\$\(.*\)/,,;
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$base =~ s,.*/,,;
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# Remove URL false-positives
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next if ($fulref =~ m/^http/);
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# Check if exists, evaluating wildcards
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next if (grep -e, glob("$ref $fulref"));
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if ($fix) {
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if (!($ref =~ m/(devicetree|scripts|Kconfig|Kbuild)/)) {
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$broken_ref{$ref}++;
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}
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} else {
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print STDERR "$f: $fulref\n";
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}
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}
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}
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exit 0 if (!$fix);
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# Step 2: Seek for file name alternatives
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print "Auto-fixing broken references. Please double-check the results\n";
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foreach my $ref (keys %broken_ref) {
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my $new =$ref;
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# get just the basename
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$new =~ s,.*/,,;
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# Seek for the same name on another place, as it may have been moved
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my $f="";
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$f = qx(find . -iname $new) if ($new);
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# usual reason for breakage: file renamed to .rst
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if (!$f) {
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$new =~ s/\.txt$/.rst/;
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$f=qx(find . -iname $new) if ($new);
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}
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my @find = split /\s+/, $f;
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if (!$f) {
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print STDERR "ERROR: Didn't find a replacement for $ref\n";
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} elsif (scalar(@find) > 1) {
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print STDERR "WARNING: Won't auto-replace, as found multiple files close to $ref:\n";
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foreach my $j (@find) {
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$j =~ s,^./,,;
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print STDERR " $j\n";
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}
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} else {
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$f = $find[0];
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$f =~ s,^./,,;
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print "INFO: Replacing $ref to $f\n";
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foreach my $j (qx(git grep -l $ref)) {
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qx(sed "s\@$ref\@$f\@g" -i $j);
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}
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}
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}
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