| 1 | #! /usr/bin/env perl |
| 2 | |
| 3 | # This script will print the dependency of a Texinfo file to stdout. |
| 4 | # texidep.pl <src-path> <input.texi> <output.ext> |
| 5 | |
| 6 | use warnings; |
| 7 | use strict; |
| 8 | |
| 9 | die unless @ARGV == 3; |
| 10 | |
| 11 | my ($src_path, $root, $target) = @ARGV; |
| 12 | |
| 13 | sub print_deps { |
| 14 | my ($file, $deps) = @_; |
| 15 | $deps->{$file} = 1; |
| 16 | |
| 17 | open(my $fh, "<", "$file") or die "Cannot open file '$file': $!"; |
| 18 | while (<$fh>) { |
| 19 | if (my ($i) = /^\@(?:verbatim)?include\s+(\S+)/) { |
| 20 | die "Circular dependency found in file $root\n" if exists $deps->{"doc/$1"}; |
| 21 | print "$target: doc/$1\n"; |
| 22 | |
| 23 | # skip looking for config.texi dependencies, since it has |
| 24 | # none, and is not located in the source tree |
| 25 | if ("$1" ne "config.texi") { |
| 26 | print_deps("$src_path/doc/$1", {%$deps}); |
| 27 | } |
| 28 | } |
| 29 | } |
| 30 | } |
| 31 | |
| 32 | print_deps($root, {}); |