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/* index.c - Alpine Package Keeper (APK)
*
* Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
* Copyright (C) 2008 Timo Teräs <timo.teras@iki.fi>
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation. See http://www.gnu.org/ for details.
*/
#include <stdio.h>
#include <unistd.h>
#include "apk_applet.h"
#include "apk_database.h"
struct counts {
int unsatisfied;
};
struct index_ctx {
const char *index;
time_t index_mtime;
};
static int index_parse(void *ctx, int optch, int optindex, const char *optarg)
{
struct index_ctx *ictx = (struct index_ctx *) ctx;
switch (optch) {
case 'x':
ictx->index = optarg;
break;
default:
return -1;
}
return 0;
}
static int index_read_file(struct apk_database *db, struct index_ctx *ictx)
{
struct apk_bstream *bs;
struct apk_file_info fi;
int r;
if (ictx->index == NULL)
return 0;
if (apk_file_get_info(ictx->index, APK_CHECKSUM_NONE, &fi) < 0)
return -1;
ictx->index_mtime = fi.mtime;
bs = apk_bstream_from_istream(apk_bstream_gunzip(apk_bstream_from_url(ictx->index), 1));
if (bs == NULL)
return -1;
r = apk_db_index_read(db, bs, 0);
bs->close(bs, NULL);
return r;
}
static int warn_if_no_providers(apk_hash_item item, void *ctx)
{
struct counts *counts = (struct counts *) ctx;
struct apk_name *name = (struct apk_name *) item;
if (name->pkgs == NULL) {
if (++counts->unsatisfied < 10) {
apk_warning("No provider for dependency '%s'",
name->name);
} else if (counts->unsatisfied == 10) {
apk_warning("Too many unsatisfiable dependencies, "
"not reporting the rest.");
}
}
return 0;
}
static int index_main(void *ctx, int argc, char **argv)
{
struct apk_database db;
struct counts counts = {0};
struct apk_ostream *os;
struct apk_file_info fi;
int total, i, j, found, newpkgs = 0;
struct index_ctx *ictx = (struct index_ctx *) ctx;
apk_db_open(&db, NULL, APK_OPENF_READ);
if (index_read_file(&db, ictx) < 0) {
apk_db_close(&db);
apk_error("The index is corrupt, or of unknown format.");
return -1;
}
for (i = 0; i < argc; i++) {
if (apk_file_get_info(argv[i], APK_CHECKSUM_NONE, &fi) < 0) {
apk_warning("File '%s' is unaccessible", argv[i]);
continue;
}
found = FALSE;
do {
struct apk_name *name;
char *fname, *fend;
apk_blob_t bname, bver;
/* Check if index is newer than package */
if (ictx->index == NULL || ictx->index_mtime < fi.mtime)
break;
/* Check that it looks like a package name */
fname = strrchr(argv[i], '/');
if (fname == NULL)
fname = argv[i];
else
fname++;
fend = strstr(fname, ".apk");
if (fend == NULL)
break;
if (apk_pkg_parse_name(APK_BLOB_PTR_PTR(fname, fend-1),
&bname, &bver) < 0)
break;
/* If we have it in the old index already? */
name = apk_db_query_name(&db, bname);
if (name == NULL || name->pkgs == NULL)
break;
for (j = 0; j < name->pkgs->num; j++) {
struct apk_package *pkg = name->pkgs->item[j];
if (apk_blob_compare(bver, APK_BLOB_STR(pkg->version)) != 0)
continue;
if (pkg->size != fi.size)
continue;
pkg->filename = strdup(argv[i]);
found = TRUE;
break;
}
} while (0);
if (!found) {
apk_db_pkg_add_file(&db, argv[i]);
newpkgs++;
}
}
os = apk_ostream_to_fd(STDOUT_FILENO);
total = apk_db_index_write(&db, os);
os->close(os);
apk_hash_foreach(&db.available.names, warn_if_no_providers, &counts);
apk_db_close(&db);
if (counts.unsatisfied != 0)
apk_warning("Total of %d unsatisfiable package "
"names. Your repository maybe broken.",
counts.unsatisfied);
apk_message("Index has %d packages (of which %d are new)",
total, newpkgs);
return 0;
}
static struct apk_option index_options[] = {
{ 'x', "index", "Read INDEX to speed up new index creation by reusing "
"the information from an old index",
required_argument, "INDEX" },
};
static struct apk_applet apk_index = {
.name = "index",
.help = "Create repository index file from FILEs.",
.arguments = "FILE...",
.context_size = sizeof(struct index_ctx),
.num_options = ARRAY_SIZE(index_options),
.options = index_options,
.parse = index_parse,
.main = index_main,
};
APK_DEFINE_APPLET(apk_index);
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