#!/usr/bin/perl

# tcl.req - a simple makedepends like script for tcl.

# I plan to rewrite this in C so that perl is not required by RPM at
# build time.

# by Ken Estes Mail.com [email protected]

use File::Basename;

if ("@ARGV") {
foreach (@ARGV) {
process_file($_);
}
} else {

# notice we are passed a list of filenames NOT as common in unix the
# contents of the file.

foreach (<>) {
process_file($_);
}
}


foreach $module (sort keys %require) {
print "tcl($module)\n";
}

exit 0;



sub process_file {

my ($file) = @_;
chomp $file;

open(FILE, "<$file")||
die("$0: Could not open file: '$file' : $!\n");

while (<FILE>) {

# Each keyword can appear multiple times. Don't
# bother with datastructures to store these strings,
# if we need to print it print it now.

if ( m/^\s*\$RPM_Requires\s*=\s*["'](.*)['"]/i) {
foreach $_ (spit(/\s+/, $1)) {
print "$_\n";
}
}

s/\#.*//;

# Each keyword can appear multiple times. Don't
# bother with datastructures to store these strings,
# if we need to print it print it now.

if ( m/^\s*\$RPM_Requires\s*=\s*["'](.*)['"]/i) {
foreach $_ (spit(/\s+/, $1))
print "$_\n";
}


# we wish to capture these source statements:

# source "$PATH/lib/util.tcl"
# source "comconf.tcl"
# if {[catch {source $env(CONTROL_PANEL_LIB_DIR)/bindings.tcl}] != 0} {

# quick check to see if the complex regexps could possibly match.
# This should speed things up.

(m/source/) || next;

# note we include parethesis and '$' and '\' in the pattern

if (
(m!source\s+([\'\"])?([0-9A-Za-z/._\-\\\(\)\$]+)!)
) {

my ($module) = $2;

# If there is some interpolation of variables,
# see if taking the basename will give us the filename.

($module =~ m/\$/) &&
($module = basename($module));

($module =~ m/\$/) ||
($require{$module}=1);
}
}

close(FILE)||
die("$0: Could not close file: '$file' : $!\n");

return ;
}