#! /usr/bin/env perl # This script will print the dependency of a Texinfo file to stdout. # texidep.pl <src-path> <input.texi> <output.ext> use warnings; use strict; die unless @ARGV == 3; my ($src_path, $root, $target) = @ARGV; sub print_deps { my ($file, $deps) = @_; $deps->{$file} = 1; open(my $fh, "<", "$file") or die "Cannot open file '$file': $!"; while (<$fh>) { if (my ($i) = /^\@(?:verbatim)?include\s+(\S+)/) { die "Circular dependency found in file $root\n" if exists $deps->{"doc/$1"}; print "$target: doc/$1\n"; # skip looking for config.texi dependencies, since it has # none, and is not located in the source tree if ("$1" ne "config.texi") { print_deps("$src_path/doc/$1", {%$deps}); } } } } print_deps($root, {});