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authorStefano Sabatini <stefasab@gmail.com>2013-05-28 23:52:33 +0400
committerStefano Sabatini <stefasab@gmail.com>2013-07-03 13:25:45 +0400
commit628ceac6526724d35cb390cc1f88344f4ea22eb4 (patch)
treebc650164fc69295c226b18f1c71b1095caa46be4 /doc/texidep.pl
parent37a970bbb668956956c632652a4316cceb48955a (diff)
doc: add script to compute texi files dependencies
Replace the inline awk script with a Perl script which tracks the dependencies recursively. This allows to correctly track dependencies for files including files with a second level include (for example: ffmpeg-devices.texi -> devices.texi -> outdevs.texi). This also adds a dependency on perl for computing the dependencies, which should not be a problem since perl is already required all the way for building documentation.
Diffstat (limited to 'doc/texidep.pl')
-rw-r--r--doc/texidep.pl22
1 files changed, 22 insertions, 0 deletions
diff --git a/doc/texidep.pl b/doc/texidep.pl
new file mode 100644
index 0000000000..0275e74709
--- /dev/null
+++ b/doc/texidep.pl
@@ -0,0 +1,22 @@
+#! /usr/bin/perl
+
+use warnings;
+use strict;
+
+my ($root, $target) = @ARGV;
+
+sub print_deps {
+ my ($file, $deps) = @_;
+ $deps->{$file} = 1;
+
+ open(my $fh, "$file") or die "Cannot open file '$file': $!";
+ while (<$fh>) {
+ /^@(?:verbatim)?include\s+(\S+)/ and do {
+ die "Circular dependency found in file $root\n" if exists $deps->{"doc/$1"};
+ print "$target: doc/$1\n";
+ print_deps("doc/$1", {%$deps});
+ }
+ }
+}
+
+print_deps($root, {});