add.c 4.35 KB
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/* add.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.
 *
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 * This program is free software; you can redistribute it and/or modify it
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 * 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.
 */

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#include <errno.h>
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#include <stdio.h>
#include "apk_applet.h"
#include "apk_database.h"
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#include "apk_state.h"
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struct add_ctx {
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	const char *virtpkg;
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};

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static int add_parse(void *ctx, struct apk_db_options *dbopts,
		     int optch, int optindex, const char *optarg)
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{
	struct add_ctx *actx = (struct add_ctx *) ctx;

	switch (optch) {
	case 0x10000:
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		dbopts->open_flags |= APK_OPENF_CREATE;
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		break;
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	case 'u':
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		apk_flags |= APK_UPGRADE;
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		break;
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	case 't':
		actx->virtpkg = optarg;
		break;
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	default:
		return -1;
	}
	return 0;
}

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static int non_repository_check(struct apk_database *db)
{
	if (apk_flags & APK_FORCE)
		return 0;
	if (apk_db_cache_active(db))
		return 0;
	if (apk_db_permanent(db))
		return 0;

	apk_error("You tried to add a non-repository package to system, "
		  "but it would be lost on next reboot. Enable package caching "
		  "(apk cache --help) or use --force if you know what you are "
		  "doing.");
	return 1;
}

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static int add_main(void *ctx, struct apk_database *db, int argc, char **argv)
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{
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	struct add_ctx *actx = (struct add_ctx *) ctx;
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	struct apk_state *state = NULL;
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	struct apk_package *virtpkg = NULL;
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	struct apk_dependency virtdep;
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	struct apk_dependency *deps;
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	int i, r = 0, num_deps = 0, errors = 0;
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	if (actx->virtpkg) {
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		if (non_repository_check(db))
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			return -1;
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		virtpkg = apk_pkg_new();
		if (virtpkg == NULL) {
			apk_error("Failed to allocate virtual meta package");
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			return -1;
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		}
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		virtpkg->name = apk_db_get_name(db, APK_BLOB_STR(actx->virtpkg));
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		apk_blob_checksum(APK_BLOB_STR(virtpkg->name->name),
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				  apk_checksum_default(), &virtpkg->csum);
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		virtpkg->version = strdup("0");
		virtpkg->description = strdup("virtual meta package");
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		apk_dep_from_pkg(&virtdep, db, virtpkg);
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		virtdep.name->flags |= APK_NAME_TOPLEVEL;
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		virtpkg = apk_db_pkg_add(db, virtpkg);
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		num_deps = 1;
	} else
		num_deps = argc;

	deps = alloca(sizeof(struct apk_dependency) * num_deps);
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	for (i = 0; i < argc; i++) {
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		struct apk_dependency dep;

		if (strstr(argv[i], ".apk") != NULL) {
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			struct apk_package *pkg = NULL;
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			struct apk_sign_ctx sctx;
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			if (non_repository_check(db))
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				return -1;
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			apk_sign_ctx_init(&sctx, APK_SIGN_VERIFY_AND_GENERATE,
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					  NULL, db->keys_fd);
			r = apk_pkg_read(db, argv[i], &sctx, &pkg);
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			apk_sign_ctx_free(&sctx);
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			if (r != 0) {
				apk_error("%s: %s", argv[i], apk_error_str(r));
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				return -1;
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			}
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			apk_dep_from_pkg(&dep, db, pkg);
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		} else {
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			r = apk_dep_from_blob(&dep, db, APK_BLOB_STR(argv[i]));
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			if (r != 0)
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				return -1;
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		}
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		if (virtpkg)
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			apk_deps_add(&virtpkg->depends, &dep);
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		else {
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			deps[i] = dep;
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			deps[i].name->flags |= APK_NAME_TOPLEVEL_OVERRIDE;
		}
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	}
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	if (virtpkg)
		deps[0] = virtdep;
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	state = apk_state_new(db);
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	if (state == NULL)
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		return -1;
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	for (i = 0; i < num_deps; i++) {
		r = apk_state_lock_dependency(state, &deps[i]);
		if (r == 0) {
			apk_deps_add(&db->world, &deps[i]);
			deps[i].name->flags |= APK_NAME_TOPLEVEL;
		} else {
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			errors++;
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		}
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	}
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	if (errors && !(apk_flags & APK_FORCE)) {
		apk_state_print_errors(state);
		r = -1;
	} else {
		r = apk_state_commit(state, db);
	}
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	if (state != NULL)
		apk_state_unref(state);
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	return r;
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}

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static struct apk_option add_options[] = {
	{ 0x10000,	"initdb",	"Initialize database" },
	{ 'u',		"upgrade",	"Prefer to upgrade package" },
	{ 't',		"virtual",
	  "Instead of adding all the packages to 'world', create a new virtual "
	  "package with the listed dependencies and add that to 'world'. The "
	  "actions of the command are easily reverted by deleting the virtual "
	  "package.", required_argument, "NAME" },
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};

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static struct apk_applet apk_add = {
	.name = "add",
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	.help = "Add (or update) PACKAGEs to main dependencies and install "
		"them, while ensuring that all dependencies are met.",
	.arguments = "PACKAGE...",
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	.open_flags = APK_OPENF_WRITE,
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	.context_size = sizeof(struct add_ctx),
	.num_options = ARRAY_SIZE(add_options),
	.options = add_options,
	.parse = add_parse,
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	.main = add_main,
};

APK_DEFINE_APPLET(apk_add);