#!/usr/bin/perl
+#
+# Copyright (C) 2013 Patrick "P. J." McDermott
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
use strict;
use warnings;
if (not GetOptions(\%opts,
"o=s",
"D=s%",
+ "I=s",
"h|help",
"V|version",
)) {
}
if (exists($opts{'h'})) {
- help(*STDERR);
+ help(*STDOUT);
exit(0);
}
if (exists($opts{'V'})) {
- version(*STDERR);
+ version(*STDOUT);
exit(0);
}
if ($#ARGV gt 0) {
error(4, "Cannot specify -o with multiple files\n");
}
- compile($ARGV[0], $opts{'o'}, $opts{'D'});
+ compile($ARGV[0], $opts{'o'}, $opts{'D'}, $opts{'I'});
} else {
for $input (@ARGV) {
$output = $input;
$output =~ s/\.[^.]+$/.html/;
- compile($input, $output, $opts{'D'});
+ compile($input, $output, $opts{'D'}, $opts{'I'});
}
}
}
usage($fh);
print("Options:\n");
print(" -D <name>=<value> Set the variable <name> to <value>\n");
+ print(" -I <directory> Set the document root to <directory>\n");
print(" -o <output> Place the output into <output>\n");
print(" -h, --help Display this information\n");
print(" -V, --version Display compiler version information\n");
sub warning
{
- my ($fmt, $args) = @_;
+ my ($fmt, @args) = @_;
- printf("ssic: Warning: " . $fmt, $args);
+ printf(STDERR "ssic: Warning: " . $fmt, @args);
}
sub error
{
- my ($status, $fmt, $args) = @_;
+ my ($status, $fmt, @args) = @_;
- printf("ssic: Error: " . $fmt, $args);
+ printf(STDERR "ssic: Error: " . $fmt, @args);
exit($status);
}
sub compile
{
- my ($input, $output, $vars) = @_;
+ my ($input, $output, $vars, $root) = @_;
my $input_fh;
+ my $input_abs;
my $output_fh;
my $ssi;
my $var_name;
my $var_value;
- if ($input eq $output) {
- error(4, "Input and output files are equal\n");
+ if ($input eq $output and $input ne "-") {
+ warning("Input and output files are equal\n");
}
- open($input_fh, "<", $input);
- open($output_fh, ">", $output);
+ if ($input eq "-") {
+ $input_fh = *STDIN;
+ $input_abs = File::Spec->rel2abs(".");
+ } else {
+ if (not open($input_fh, "<", $input)) {
+ error(4, "%s: %s\n", $input, $!);
+ }
+ $input_abs = File::Spec->rel2abs($input);
+ }
+ if ($output eq "-") {
+ $output_fh = *STDOUT;
+ } else {
+ if (not open($output_fh, ">", $output . "~")) {
+ error(4, "%s: %s\n", $output . "~", $!);
+ }
+ }
+
+ # CGI::SSI uses SCRIPT_FILENAME to determine the value of LAST_MODIFIED.
+ %ENV = (
+ "DOCUMENT_NAME" => $input,
+ "DOCUMENT_URI" => $input,
+ "DOCUMENT_ROOT" => $root,
+ "SCRIPT_FILENAME" => $input_abs,
+ );
$CGI::SSI::DEBUG = 0;
- $ssi = CGI::SSI->new();
+ $ssi = CGI::SSI->new(
+ "DOCUMENT_NAME" => $input,
+ "DOCUMENT_URI" => $input,
+ "DOCUMENT_ROOT" => $root,
+ );
while (($var_name, $var_value) = each(%{$vars})) {
$ssi->set($var_name => $var_value);
}
print($output_fh $ssi->process(<$input_fh>));
+
+ if ($input ne "-") {
+ close($input_fh);
+ }
+ if ($output ne "-") {
+ close($output_fh);
+ }
+
+ if (not rename($output . "~", $output)) {
+ error(4, "%s: %s\n", $output, $!);
+ }
}
main();