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|
#!/usr/bin/perl -w
use strict;
{
my $maxdepth = 2; # default
if ($#ARGV > -1 && $ARGV[0] eq "-h") {
print STDERR "usage: $0 [-d maxdepth] [target subroutine(s)]\n";
print STDERR " builds the dependency tree of f90 files - run from the QE root directory\n";
print STDERR " defaults: maxdepth=2, targets=all f90 files under the current directory\n";
exit 0;
}
if ($#ARGV > -1 && $ARGV[0] eq "-d")
{
if ($#ARGV < 1)
{
print STDERR "error: maxdepth missing\n";
print STDERR "usage: $0 [-d maxdepth] [targets]\n";
exit 1;
}
$maxdepth = $ARGV[1];
if ($maxdepth !~ /^\d+$/)
{
print STDERR "error: non-numeric maxdepth\n";
print STDERR "usage: $0 [-d maxdepth] [targets]\n";
exit 1;
}
shift @ARGV;
shift @ARGV;
}
my $basedir = $0;
# Orig: the following is the directory where this script is
# $basedir =~ s/(.*)\/.*/$1/;
# the following works only if we run the script from QE root
$basedir = "./";
my @sources = split(/ /, `echo $basedir/*/*.f90 $basedir/*/*/*.f90`);
# grab program, function and subroutine declarations
my (%place, %fname, %pname);
foreach my $file (@sources)
{
open(IN, "$file");
while (<IN>)
{
$_ = "\L$_"; # cast everything to lowercase
if (/^[^!'""']*\bfunction\s+(\w+)/o && ! /^\s*end\s+function\b/o)
{
$fname{$1} = 1;
push_place(\%place, $1, $file);
}
elsif (/^\s*program\s+(\w+)/o)
{
$pname{$1} = 1;
push_place(\%place, $1, $file);
}
elsif (/^\s*(?:(?:pure|recursive)\s+)?subroutine\s+(\w+)/o)
{
push_place(\%place, $1, $file);
}
}
close(IN);
}
my @names = sort keys %place;
my @functions = sort keys %fname;
# if no arguments are specified, stat all programs
my @targets = @ARGV;
if ($#targets < 0)
{
@targets = sort keys %pname;
}
my %cache;
foreach my $name (@targets)
{
stat_name($name, \%place, \@functions, \%cache, 0, "", $maxdepth);
}
}
sub push_place
{
my ($place, $name, $file) = @_;
if (defined $$place{$name})
{
$$place{$name} = "$$place{$name} $file";
}
else
{
$$place{$name} = "$file";
}
}
sub stat_name
{
my ($name, $place, $functions, $cache, $depth, $indent, $maxdepth) = @_;
print "$indent$name\n";
if ($depth >= $maxdepth || ! defined $$place{$name})
{
return;
}
if (! defined $$cache{$name})
{
my %cname;
my @files = split(/ /, $$place{$name});
foreach my $file (@files)
{
my $current = "";
open(IN, $file);
while (<IN>)
{
$_ = "\L$_";
if (/^\s*program\s+(\w+)/o)
{
$current = "$1";
}
elsif (/^\s*(?:(?:pure|recursive)\s+)?subroutine\s+(\w+)/o)
{
$current = "$1";
}
elsif (/^[^!'""']*\bfunction\s+(\w+)/o)
{
$current = "$1";
}
# here we are inside the relevant program/subroutine/function
elsif ($current eq $name)
{
# subroutine calls
if (/^\s*call\s+(\w+)/o)
{
$cname{$1} = 1;
}
# function calls
foreach my $fun (@$functions)
{
if (/^[^!'""']*\b$fun\b/)
{
$cname{$fun} = 1;
}
}
}
}
close(IN);
}
my @calls = sort keys %cname;
$$cache{$name} = \@calls;
}
foreach my $call (@{$$cache{$name}})
{
if ($call ne $name)
{
stat_name($call, $place, $functions, $cache,
$depth+1, " $indent", $maxdepth);
}
}
}
|
