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mirror of https://github.com/moparisthebest/curl synced 2024-11-17 23:15:08 -05:00
curl/src/mkhelp.pl
Daniel Stenberg c543da9a50
curl: remove MANUAL from -M output
... and remove it from the dist tarball. It has served its time, it
barely gets updated anymore and "everything curl" is now convering all
this document once tried to include, and does it more and better.

In the compressed scenario, this removes ~15K data from the binary,
which is 25% of the -M output.

It remains in the git repo for now for as long as the web site builds a
page using that as source. It renders poorly on the site (especially for
mobile users) so its not even good there.

Closes #3587
2019-02-20 08:20:27 +01:00

236 lines
5.8 KiB
Perl
Executable File
Raw Blame History

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#!/usr/bin/env perl
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
# Yeah, I know, probably 1000 other persons already wrote a script like
# this, but I'll tell ya:
# THEY DON'T FIT ME :-)
# Get readme file as parameter:
if($ARGV[0] eq "-c") {
$c=1;
shift @ARGV;
}
push @out, " _ _ ____ _\n";
push @out, " Project ___| | | | _ \\| |\n";
push @out, " / __| | | | |_) | |\n";
push @out, " | (__| |_| | _ <| |___\n";
push @out, " \\___|\\___/|_| \\_\\_____|\n";
my $olen=0;
while (<STDIN>) {
my $line = $_;
# this should be removed:
$line =~ s/(.|_)//g;
# remove trailing CR from line. msysgit checks out files as line+CRLF
$line =~ s/\r$//;
if($line =~ /^([ \t]*\n|curl)/i) {
# cut off headers and empty lines
$wline++; # count number of cut off lines
next;
}
my $text = $line;
$text =~ s/^\s+//g; # cut off preceding...
$text =~ s/\s+$//g; # and trailing whitespaces
$tlen = length($text);
if($wline && ($olen == $tlen)) {
# if the previous line with contents was exactly as long as
# this line, then we ignore the newlines!
# We do this magic because a header may abort a paragraph at
# any line, but we don't want that to be noticed in the output
# here
$wline=0;
}
$olen = $tlen;
if($wline) {
# we only make one empty line max
$wline = 0;
push @out, "\n";
}
push @out, $line;
}
push @out, "\n"; # just an extra newline
print <<HEAD
/*
* NEVER EVER edit this manually, fix the mkhelp.pl script instead!
*/
#ifdef USE_MANUAL
#include "tool_hugehelp.h"
HEAD
;
if($c) {
# If compression requested, check that the Gzip module is available
# or else disable compression
$c = eval
{
require IO::Compress::Gzip;
IO::Compress::Gzip->import();
1;
};
print STDERR "Warning: compression requested but Gzip is not available\n" if (!$c)
}
if($c)
{
my $content = join("", @out);
my $gzippedContent;
IO::Compress::Gzip::gzip(
\$content, \$gzippedContent, Level => 9, TextFlag => 1, Time=>0) or die "gzip failed:";
$gzip = length($content);
$gzipped = length($gzippedContent);
print <<HEAD
#include <zlib.h>
#include "memdebug.h" /* keep this as LAST include */
static const unsigned char hugehelpgz[] = {
/* This mumbo-jumbo is the huge help text compressed with gzip.
Thanks to this operation, the size of this data shrank from $gzip
to $gzipped bytes. You can disable the use of compressed help
texts by NOT passing -c to the mkhelp.pl tool. */
HEAD
;
my $c=0;
print " ";
for(split(//, $gzippedContent)) {
my $num=ord($_);
printf(" 0x%02x,", 0+$num);
if(!(++$c % 12)) {
print "\n ";
}
}
print "\n};\n";
print <<EOF
#define BUF_SIZE 0x10000
static voidpf zalloc_func(voidpf opaque, unsigned int items, unsigned int size)
{
(void) opaque;
/* not a typo, keep it calloc() */
return (voidpf) calloc(items, size);
}
static void zfree_func(voidpf opaque, voidpf ptr)
{
(void) opaque;
free(ptr);
}
/* Decompress and send to stdout a gzip-compressed buffer */
void hugehelp(void)
{
unsigned char* buf;
int status,headerlen;
z_stream z;
/* Make sure no gzip options are set */
if (hugehelpgz[3] & 0xfe)
return;
headerlen = 10;
memset(&z, 0, sizeof(z_stream));
z.zalloc = (alloc_func)zalloc_func;
z.zfree = (free_func)zfree_func;
z.avail_in = (unsigned int)(sizeof(hugehelpgz) - headerlen);
z.next_in = (unsigned char *)hugehelpgz + headerlen;
if (inflateInit2(&z, -MAX_WBITS) != Z_OK)
return;
buf = malloc(BUF_SIZE);
if (buf) {
while(1) {
z.avail_out = BUF_SIZE;
z.next_out = buf;
status = inflate(&z, Z_SYNC_FLUSH);
if (status == Z_OK || status == Z_STREAM_END) {
fwrite(buf, BUF_SIZE - z.avail_out, 1, stdout);
if (status == Z_STREAM_END)
break;
}
else
break; /* Error */
}
free(buf);
}
inflateEnd(&z);
}
EOF
;
foot();
exit;
}
else {
print <<HEAD
void hugehelp(void)
{
fputs(
HEAD
;
}
$outsize=0;
for(@out) {
chop;
$new = $_;
$outsize += length($new)+1; # one for the newline
$new =~ s/\\/\\\\/g;
$new =~ s/\"/\\\"/g;
# gcc 2.96 claims ISO C89 only is required to support 509 letter strings
if($outsize > 500) {
# terminate and make another fputs() call here
print ", stdout);\n fputs(\n";
$outsize=length($new)+1;
}
printf("\"%s\\n\"\n", $new);
}
print ", stdout) ;\n}\n";
foot();
sub foot {
print <<FOOT
#else /* !USE_MANUAL */
/* built-in manual is disabled, blank function */
#include "tool_hugehelp.h"
void hugehelp(void) {}
#endif /* USE_MANUAL */
FOOT
;
}