Commit 9c7703ac authored by Daniel Stenberg's avatar Daniel Stenberg
Browse files

Based on Dan Fandrich's patch and gzip unpack function, we now compress 

the 'hugehelp' text if libz and gzip are available at build time.
parent 4a8155b5

src/Makefile.am

+9 −1
Original line number Diff line number Diff line
@@ -11,6 +11,14 @@ INCLUDES = -I$(top_srcdir)/include -I$(top_builddir)/src -I$(top_srcdir)/src 


bin_PROGRAMS = curl #memtest



if HAVE_LIBZ

# libz available, attempt to compress the help data

MKHELPOPT=-c

else

# no libz, don't try to compress

MKHELPOPT=

endif



#memtest_SOURCES = memtest.c

#memtest_LDADD = $(top_srcdir)/lib/libcurl.la
@@ -38,4 +46,4 @@ MKHELP=$(top_srcdir)/src/mkhelp.pl 
# This generates the hugehelp.c file

hugehelp.c: $(README) $(MANPAGE)  mkhelp.pl

	rm -f hugehelp.c

	$(NROFF) -man $(MANPAGE) | $(PERL) $(MKHELP)  $(README) > hugehelp.c
 
	$(NROFF) -man $(MANPAGE) | $(PERL) -s $(MKHELP) $(MKHELPOPT) $(README) > hugehelp.c

src/mkhelp.pl

+106 −13
Original line number Diff line number Diff line
@@ -6,10 +6,10 @@ 
# THEY DON'T FIT ME :-)



# Get readme file as parameter:

$README = $ARGV[0];

my $README = $ARGV[0];



if($README eq "") {

    print "usage: mkreadme.pl <README>\n";

    print "usage: mkreadme.pl [-c] <README> < manpage\n";

    exit;

}
@@ -20,8 +20,8 @@ push @out, " / __| | | | |_) | | \n"; 
push @out, "                            | (__| |_| |  _ <| |___ \n";

push @out, "                             \\___|\\___/|_| \\_\\_____|\n";



$head=0;

loop:

my $head=0;



while (<STDIN>) {

    $line = $_;
@@ -34,13 +34,13 @@ while (<STDIN>) { 
    if($line =~ /^curl/i) {

	# cut off the page headers

        $head=1;

	next loop;

	next;

    } 



    if($line =~ /^[ \t]*\n/) {

	$wline++;

	# we only make one empty line max

	next loop;

	next;

    }

    if($wline) {

	$wline = 0;
@@ -54,20 +54,113 @@ while (<STDIN>) { 
push @out, "\n"; # just an extra newline



open(READ, "<$README") ||

    die "couldn't read the README infile";

    die "couldn't read the README infile $README";



while(<READ>) {

    push @out, $_;

}

close(READ);



# if compressed

if($c) {

    my @test = `gzip --version 2>&1`;

    if($test[0] =~ /gzip/) {

        open(GZIP, "|gzip -9 >dumpit.gz");

        binmode GZIP;

        for(@out) {

            print GZIP $_;

            $gzip += length($_);

        }

        close(GZIP);

        

        open(GZIP, "<dumpit.gz");

        binmode GZIP;

        while(<GZIP>) {

            push @gzip, $_;

            $gzipped += length($_);

        }

        close(GZIP);

    }

    else {

        # no gzip, no compression!

        undef $c;

        print STDERR "MEEEP: Couldn't find gzip, disable compression\n";

    }

}



print "/* NEVER EVER edit this manually, fix the mkhelp script instead! */\n"

$now = localtime;

print <<HEAD

/*

 * NEVER EVER edit this manually, fix the mkhelp.pl script instead!

 * Generation time: $now

 */

#include <stdio.h>

HEAD

    ;

print "#include <stdio.h>\n";

print "void hugehelp(void)\n";

print "{\n";

print " fputs (\n";

if($c) {

    print "/* gzip shrunk this data from $gzip to $gzipped bytes */\n",

    "#include <zlib.h>\nstatic const unsigned char hugehelpgz[] = {\n  ";

    my $c=0;

    for(@gzip) {

        my @all=split(//, $_);

        for(@all) {

            my $num=ord($_);

            printf("0x%02x, ", 0+$num);

            if(++$c>11) {

                print "\n  ";

                $c=0;

            }

        }

    }

    print "\n};\n";



    print <<EOF

/* Decompress and send to stdout a gzip-compressed buffer */

void hugehelp(void)

{

  unsigned char buf[0x10000];

  int status,headerlen;

  z_stream z;



  /* Make sure no gzip options are set */

  if (hugehelpgz[3] & 0xfe)

    return;



  headerlen = 10;

  z.avail_in = sizeof(hugehelpgz) - headerlen;

  z.next_in = (unsigned char *)hugehelpgz + headerlen;

  z.zalloc = (alloc_func)Z_NULL;

  z.zfree = (free_func)Z_NULL;

  z.opaque = 0;



  if (inflateInit2(&z, -MAX_WBITS) != Z_OK)

    return;



  for (;;) {

    z.avail_out = (int)sizeof(buf);

    z.next_out = buf;

    status = inflate(&z, Z_SYNC_FLUSH);

    if (status == Z_OK || status == Z_STREAM_END) {

      fwrite(buf, sizeof(buf) - z.avail_out, 1, stdout);

      if (status == Z_STREAM_END)

         break;

    } else

      break;    /* Error */

  }

  inflateEnd(&z);

}

EOF

    ;

exit;

}

else {

    print <<HEAD

void hugehelp(void)

{

   fputs(

HEAD

         ;

}



$outsize=0;

for(@out) {