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/* test.c - Alpine Package Keeper (APK)
*
* Copyright (C) 2011 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 <errno.h>
#include <fcntl.h>
#include "apk_applet.h"
#include "apk_database.h"
#include "apk_solver.h"
#include "apk_io.h"
#include "apk_print.h"
struct test_ctx {
const char *installed_db;
struct apk_string_array *repos;
};
static int test_parse(void *pctx, struct apk_db_options *dbopts,
int optch, int optindex, const char *optarg)
{
struct test_ctx *ctx = (struct test_ctx *) pctx;
switch (optch) {
case 0x10000:
ctx->installed_db = optarg;
break;
case 0x10001:
if (ctx->repos == NULL)
apk_string_array_init(&ctx->repos);
*apk_string_array_add(&ctx->repos) = (char*) optarg;
break;
case 'u':
apk_flags |= APK_UPGRADE;
break;
case 'a':
apk_flags |= APK_PREFER_AVAILABLE;
break;
default:
return -1;
}
return 0;
}
static inline void print_change(struct apk_package *oldpkg,
struct apk_package *newpkg)
{
const char *msg = NULL;
struct apk_name *name;
int r;
if (oldpkg != NULL)
name = oldpkg->name;
else
name = newpkg->name;
if (oldpkg == NULL) {
apk_message("Installing %s (" BLOB_FMT ")",
name->name,
BLOB_PRINTF(*newpkg->version));
} else if (newpkg == NULL) {
apk_message("Purging %s (" BLOB_FMT ")",
name->name,
BLOB_PRINTF(*oldpkg->version));
} else {
r = apk_pkg_version_compare(newpkg, oldpkg);
switch (r) {
case APK_VERSION_LESS:
msg = "Downgrading";
break;
case APK_VERSION_EQUAL:
if (newpkg == oldpkg)
msg = "Re-installing";
else
msg = "Replacing";
break;
case APK_VERSION_GREATER:
msg = "Upgrading";
break;
}
apk_message("%s %s (" BLOB_FMT " -> " BLOB_FMT ")",
msg, name->name,
BLOB_PRINTF(*oldpkg->version),
BLOB_PRINTF(*newpkg->version));
}
}
static int test_main(void *pctx, struct apk_database *db, int argc, char **argv)
{
struct test_ctx *ctx = (struct test_ctx *) pctx;
struct apk_bstream *bs;
struct apk_package_array *solution = NULL;
struct apk_changeset changeset;
int i;
if (argc != 1)
return -EINVAL;
/* load installed db */
if (ctx->installed_db != NULL) {
bs = apk_bstream_from_file(AT_FDCWD, ctx->installed_db);
apk_db_index_read(db, bs, -1);
bs->close(bs, NULL);
}
/* load additional indexes */
if (ctx->repos) {
for (i = 0; i < ctx->repos->num; i++) {
bs = apk_bstream_from_file(AT_FDCWD, ctx->repos->item[i]);
apk_db_index_read(db, bs, i);
bs->close(bs, NULL);
}
}
/* construct new world */
apk_deps_parse(db, &db->world, APK_BLOB_STR(argv[0]));
/* run solver */
apk_solver_sort(db);
if (apk_solver_solve(db, db->world, &solution) != 0)
return 1;
memset(&changeset, 0, sizeof(changeset));
if (apk_solver_generate_changeset(db, solution, &changeset) == 0) {
/* dump changeset */
for (i = 0; i < changeset.changes->num; i++) {
struct apk_change *c = &changeset.changes->item[i];
print_change(c->oldpkg, c->newpkg);
}
}
return 0;
}
static struct apk_option test_options[] = {
{ 0x10000, "installed", "Installed database",
required_argument, "DB" },
{ 0x10001, "raw-repository", "Add unsigned test repository index",
required_argument, "INDEX" },
{ 'u', "upgrade", "Prefer to upgrade package" },
{ 'a', "available",
"Re-install or downgrade if currently installed package is not "
"currently available from any repository" },
};
static struct apk_applet test_applet = {
.name = "test",
.help = "Test dependency graph solver (uses simple repository and installed db)",
.arguments = "'WORLD'",
.open_flags = APK_OPENF_READ | APK_OPENF_NO_STATE | APK_OPENF_NO_REPOS,
.context_size = sizeof(struct test_ctx),
.num_options = ARRAY_SIZE(test_options),
.options = test_options,
.parse = test_parse,
.main = test_main,
};
APK_DEFINE_APPLET(test_applet);
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