magpie/magpie/mod_md5sums.c

/*
Magpie - reference librarian for Debian systems
Copyright (C) 2000  Bear Giles <bgiles@coyotesong.com>

This program is free software; you may redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

static const char rcsid[] = "$Id: mod_md5sums.c,v 1.2 2003/08/31 14:29:48 djpig-guest Exp $";

/*****
This module lists all packages, sorted by md5sum.
*****/
#include <assert.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include "magpie.h"

#include "parser.h"

extern int mkdir (const char *, mode_t);
extern char *compress_ext;

#define OUTPUT_FILE     "md5sums.html"


/*+
Comparison function for sorting by package md5sum.
It serves as a "knock on the side of the head" - what other fields
could be used for the sort?  What information would that provide?
+*/
static int cmp_md5sum (const void *p, const void *q)
{
        struct package_info *pp = *((struct package_info **) p);
        struct package_info *qq = *((struct package_info **) q);

        if (!pp->md5sum)
                return 1;
        if (!qq->md5sum)
                return -1;

        return strcmp (pp->md5sum, qq->md5sum);
}
        

/*+
+*/
static int md5sums_init (void)
{
        int i;
        FILE *fp;
        struct package_info *p;

        qsort (cache, cachecnt, sizeof (cache[0]), cmp_md5sum);

        fp = fopen (OUTPUT_FILE, "w");
        mp_doc_open (fp, "All Packages Sorted by MD5 Checksum");

        mp_abstract (fp, "\
This is a list of packages ordered by MD5 checksum.  It serves no real\n\
purpose.");

        mp_list_open (fp);
        for (i = 0; i < cachecnt; i++) {
                p = cache[i];
                mp_package (fp, p, 2, T_MD5SUM);
        }
        mp_list_close (fp);
        mp_doc_close (fp);
        fclose (fp);

        gzip (OUTPUT_FILE);

        return 0;
}


/*+
Print the *tasks* packages ordered by name.
+*/
static int md5sums_index (FILE *fp, int type)
{
        if (type != MAGPIE_ALL_PACKAGES)
                return 0;

        mp_item_open (fp); 
        mp_url (fp, "%s%s", "Ordered by MD5 checksum", 
                OUTPUT_FILE, compress_ext);
        mp_item_close (fp); 

        return 0;
}


struct magpie_module mod_md5sums = { 
        version           : MAGPIE_VERSION,
        description       : "group packages by package md5sums",
        init              : md5sums_init,
        unannotated_index : md5sums_index
};
1	/*
2	Magpie - reference librarian for Debian systems
3	Copyright (C) 2000 Bear Giles <bgiles@coyotesong.com>
4
5	This program is free software; you may redistribute it and/or
6	modify it under the terms of the GNU General Public License
7	as published by the Free Software Foundation; either version 2
8	of the license, or (at your option) any later version.
9
10	This program is distributed in the hope that it will be useful,
11	but WITHOUT ANY WARRANTY; without even the implied warranty of
12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13	GNU General Public License for more details.
14
15	You should have received a copy of the GNU General Public License
16	along with this program; if not, write to the Free Software
17	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18	*/
19
20	static const char rcsid[] = "$Id: mod_md5sums.c,v 1.2 2003/08/31 14:29:48 djpig-guest Exp $";
21
22	/*****
23	This module lists all packages, sorted by md5sum.
24	*****/
25	#include <assert.h>
26	#include <stdio.h>
27	#include <unistd.h>
28	#include <string.h>
29	#include <stdlib.h>
30	#include "magpie.h"
31
32	#include "parser.h"
33
34	extern int mkdir (const char *, mode_t);
35	extern char *compress_ext;
36
37	#define OUTPUT_FILE "md5sums.html"
38
39
40	/*+
41	Comparison function for sorting by package md5sum.
42	It serves as a "knock on the side of the head" - what other fields
43	could be used for the sort? What information would that provide?
44	+*/
45	static int cmp_md5sum (const void p, const void q)
46	{
47	struct package_info pp = ((struct package_info **) p);
48	struct package_info qq = ((struct package_info **) q);
49
50	if (!pp->md5sum)
51	return 1;
52	if (!qq->md5sum)
53	return -1;
54
55	return strcmp (pp->md5sum, qq->md5sum);
56	}
57
58
59	/*+
60	+*/
61	static int md5sums_init (void)
62	{
63	int i;
64	FILE *fp;
65	struct package_info *p;
66
67	qsort (cache, cachecnt, sizeof (cache[0]), cmp_md5sum);
68
69	fp = fopen (OUTPUT_FILE, "w");
70	mp_doc_open (fp, "All Packages Sorted by MD5 Checksum");
71
72	mp_abstract (fp, "\
73	This is a list of packages ordered by MD5 checksum. It serves no real\n\
74	purpose.");
75
76	mp_list_open (fp);
77	for (i = 0; i < cachecnt; i++) {
78	p = cache[i];
79	mp_package (fp, p, 2, T_MD5SUM);
80	}
81	mp_list_close (fp);
82	mp_doc_close (fp);
83	fclose (fp);
84
85	gzip (OUTPUT_FILE);
86
87	return 0;
88	}
89
90
91	/*+
92	Print the tasks packages ordered by name.
93	+*/
94	static int md5sums_index (FILE *fp, int type)
95	{
96	if (type != MAGPIE_ALL_PACKAGES)
97	return 0;
98
99	mp_item_open (fp);
100	mp_url (fp, "%s%s", "Ordered by MD5 checksum",
101	OUTPUT_FILE, compress_ext);
102	mp_item_close (fp);
103
104	return 0;
105	}
106
107
108	struct magpie_module mod_md5sums = {
109	version : MAGPIE_VERSION,
110	description : "group packages by package md5sums",
111	init : md5sums_init,
112	unannotated_index : md5sums_index
113	};