summaryrefslogtreecommitdiffstats
path: root/src/info.c
blob: a222b8cbdb528a7e1b872d7682d5a39d11a5e8ff (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
/* info.c - Alpine Package Keeper (APK)
 *
 * Copyright (C) 2005-2009 Natanael Copa <n@tanael.org>
 * Copyright (C) 2009 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_defines.h"
#include "apk_applet.h"
#include "apk_package.h"
#include "apk_database.h"
#include "apk_state.h"

struct info_ctx {
	int (*action)(struct info_ctx *ctx, struct apk_database *db,
		      int argc, char **argv);
	int subaction_mask;
};

struct info_subaction {
	int mask;
	void (*subaction)(struct apk_package *pkg);
};

static void info_print_depends(struct apk_package *pkg);
static void info_print_url(struct apk_package *pkg);
static void info_print_required_by(struct apk_package *pkg);
static void info_print_size(struct apk_package *pkg);
static void info_print_contents(struct apk_package *pkg);
static void info_print_description(struct apk_package *pkg);

#define APK_INFO_URL		0x01
#define APK_INFO_DEPENDS	0x02
#define APK_INFO_RDEPENDS	0x04
#define APK_INFO_SIZE		0x08
#define APK_INFO_CONTENTS	0x10
#define APK_INFO_DESC		0x20

#define APK_INFO_NUM_SUBACTIONS 6
static struct info_subaction info_package_actions[] = {
	{ APK_INFO_DESC,	info_print_description },
	{ APK_INFO_URL,		info_print_url },
	{ APK_INFO_SIZE,	info_print_size },
	{ APK_INFO_CONTENTS,	info_print_contents },
	{ APK_INFO_DEPENDS,	info_print_depends },
	{ APK_INFO_RDEPENDS,	info_print_required_by },
};

static void verbose_print_pkg(struct apk_package *pkg, int minimal_verbosity)
{
	int verbosity = apk_verbosity;
	if (verbosity < minimal_verbosity)
		verbosity = minimal_verbosity;

	if (pkg == NULL || verbosity < 1)
		return;

	printf("%s", pkg->name->name);
	if (apk_verbosity > 1)
		printf("-%s", pkg->version);
	if (apk_verbosity > 2)
		printf(" - %s", pkg->description);
	printf("\n");
}


static int info_list(struct info_ctx *ctx, struct apk_database *db,
		     int argc, char **argv)
{
	struct apk_package *pkg;

	list_for_each_entry(pkg, &db->installed.packages, installed_pkgs_list)
		verbose_print_pkg(pkg, 1);
	return 0;
}

static int info_exists(struct info_ctx *ctx, struct apk_database *db,
		       int argc, char **argv)
{
	struct apk_name *name;
	struct apk_package *pkg = NULL;
	struct apk_dependency dep;
	int r, i, j, ok = 0;

	for (i = 0; i < argc; i++) {
		r = apk_dep_from_blob(&dep, db, APK_BLOB_STR(argv[i]));
		if (r != 0)
			continue;

		name = dep.name;
		for (j = 0; j < name->pkgs->num; j++) {
			pkg = name->pkgs->item[j];
			if (apk_pkg_get_state(pkg) == APK_PKG_INSTALLED)
				break;
		}
		if (j >= name->pkgs->num)
			continue;

		if (!(apk_version_compare(pkg->version, dep.version)
		      & dep.result_mask))
			continue;

		verbose_print_pkg(pkg, 0);
		ok++;
	}

	return argc - ok;
}

static int info_who_owns(struct info_ctx *ctx, struct apk_database *db,
			 int argc, char **argv)
{
	struct apk_package *pkg;
	struct apk_dependency_array *deps = NULL;
	struct apk_dependency dep;
	int i;

	for (i = 0; i < argc; i++) {
		pkg = apk_db_get_file_owner(db, APK_BLOB_STR(argv[i]));
		if (pkg == NULL)
			continue;

		if (apk_verbosity < 1) {
			dep = (struct apk_dependency) {
				.name = pkg->name,
				.result_mask = APK_DEPMASK_REQUIRE,
			};
			apk_deps_add(&deps, &dep);
		} else {
			printf("%s is owned by %s-%s\n", argv[i],
			       pkg->name->name, pkg->version);
		}
	}
	if (apk_verbosity < 1 && deps != NULL) {
		struct apk_ostream *os;

		os = apk_ostream_to_fd(STDOUT_FILENO);
		apk_deps_write(deps, os);
		os->write(os, "\n", 1);
		os->close(os);

		free(deps);
	}

	return 0;
}

static void info_subaction(struct info_ctx *ctx, struct apk_package *pkg)
{
	int i;
	for (i = 0; i < APK_INFO_NUM_SUBACTIONS; i++)
		if (info_package_actions[i].mask & ctx->subaction_mask) {
			info_package_actions[i].subaction(pkg);
			puts("");
		}
}

static int info_package(struct info_ctx *ctx, struct apk_database *db,
			int argc, char **argv)
{
	struct apk_name *name;
	int i, j;

	for (i = 0; i < argc; i++) {
		name = apk_db_query_name(db, APK_BLOB_STR(argv[i]));
		if (name == NULL) {
			apk_error("Not found: %s", name);
			return 1;
		}
		for (j = 0; j < name->pkgs->num; j++) {
			struct apk_package *pkg = name->pkgs->item[j];
			if (apk_pkg_get_state(pkg) == APK_PKG_INSTALLED)
				info_subaction(ctx, pkg);
		}
	}
	return 0;
}

static void info_print_contents(struct apk_package *pkg)
{
	struct apk_db_dir_instance *diri;
	struct apk_db_file *file;
	struct hlist_node *dc, *dn, *fc, *fn;

	if (apk_verbosity == 1)
		printf("%s-%s contains:\n", pkg->name->name, pkg->version);

	hlist_for_each_entry_safe(diri, dc, dn, &pkg->owned_dirs,
				  pkg_dirs_list) {
		hlist_for_each_entry_safe(file, fc, fn, &diri->owned_files,
					  diri_files_list) {
			if (apk_verbosity > 1)
				printf("%s: ", pkg->name->name);
			printf("%s/%s\n", diri->dir->name, file->name);
		}
	}
}

static void info_print_depends(struct apk_package *pkg)
{
	int i;
	char *separator = apk_verbosity > 1 ? " " : "\n";
	if (apk_verbosity == 1)
		printf("%s-%s depends on:\n", pkg->name->name, pkg->version);
	if (pkg->depends == NULL)
		return;
	if (apk_verbosity > 1)
		printf("%s: ", pkg->name->name);
	for (i = 0; i < pkg->depends->num; i++) {
		printf("%s%s", pkg->depends->item[i].name->name, separator);
	}
}

static void info_print_required_by(struct apk_package *pkg)
{
	int i, j, k;
	char *separator = apk_verbosity > 1 ? " " : "\n";

	if (apk_verbosity == 1)
		printf("%s-%s is required by:\n", pkg->name->name, pkg->version);
	if (pkg->name->rdepends == NULL)
		return;
	if (apk_verbosity > 1)
		printf("%s: ", pkg->name->name);
	for (i = 0; i < pkg->name->rdepends->num; i++) {
		struct apk_name *name0 = pkg->name->rdepends->item[i];

		/* Check only the package that is installed, and that
		 * it actually has this package as dependency. */
		if (name0->pkgs == NULL)
			continue;
		for (j = 0; j < name0->pkgs->num; j++) {
			struct apk_package *pkg0 = name0->pkgs->item[j];

			if (apk_pkg_get_state(pkg0) != APK_PKG_INSTALLED ||
			    pkg0->depends == NULL)
				continue;
			for (k = 0; k < pkg0->depends->num; k++) {
				if (pkg0->depends->item[k].name != pkg->name)
					continue;
				printf("%s-%s%s", pkg0->name->name,
				       pkg0->version, separator);
				break;
			}
		}
	}
}

static void info_print_url(struct apk_package *pkg)
{
	if (apk_verbosity > 1)
		printf("%s: %s", pkg->name->name, pkg->url);
	else
		printf("%s-%s webpage:\n%s\n", pkg->name->name, pkg->version,
		       pkg->url);
}

static void info_print_size(struct apk_package *pkg)
{
	if (apk_verbosity > 1)
		printf("%s: %zu", pkg->name->name, pkg->installed_size);
	else
		printf("%s-%s installed size:\n%zu\n", pkg->name->name, pkg->version,
		       pkg->installed_size);
}

static void info_print_description(struct apk_package *pkg)
{
	if (apk_verbosity > 1)
		printf("%s: %s", pkg->name->name, pkg->description);
	else
		printf("%s-%s description:\n%s\n", pkg->name->name,
		       pkg->version, pkg->description);
}
static int info_parse(void *ctx, int optch, int optindex, const char *optarg)
{
	struct info_ctx *ictx = (struct info_ctx *) ctx;

	ictx->action = info_package;
	switch (optch) {
	case 'e':
		ictx->action = info_exists;
		break;
	case 'W':
		ictx->action = info_who_owns;
		break;
	case 'w':
		ictx->subaction_mask |= APK_INFO_URL;
		break;
	case 'L':
		ictx->subaction_mask |= APK_INFO_CONTENTS;
		break;
	case 'R':
		ictx->subaction_mask |= APK_INFO_DEPENDS;
		break;
	case 'r':
		ictx->subaction_mask |= APK_INFO_RDEPENDS;
		break;
	case 's':
		ictx->subaction_mask |= APK_INFO_SIZE;
		break;
	case 'd':
		ictx->subaction_mask |= APK_INFO_DESC;
		break;
	default:
		return -1;
	}
	return 0;
}

static int info_main(void *ctx, int argc, char **argv)
{
	struct info_ctx *ictx = (struct info_ctx *) ctx;
	struct apk_database db;
	int r;

	if (apk_db_open(&db, apk_root, APK_OPENF_READ | APK_OPENF_NO_REPOS) < 0)
		return -1;

	if (ictx->action != NULL)
		r = ictx->action(ictx, &db, argc, argv);
	else
		r = info_list(ictx, &db, argc, argv);

	apk_db_close(&db);
	return r;
}

static struct apk_option info_options[] = {
	{ 'L', "contents",	"List contents of the PACKAGE" },
	{ 'e', "installed",	"Check if PACKAGE is installed" },
	{ 'W', "who-owns",	"Print the package owning the specified file" },
	{ 'R', "depends",	"List packages that the PACKAGE depends on" },
	{ 'r', "rdepends",	"List all packages depending on PACKAGE" },
	{ 'w', "webpage",	"Show URL for more information about PACKAGE" },
	{ 's', "size",		"Show installed size of PACKAGE" },
	{ 'd', "description",	"Print description for PACKAGE" },
};

static struct apk_applet apk_info = {
	.name = "info",
	.help = "Give detailed information about PACKAGEs.",
	.arguments = "PACKAGE...",
	.context_size = sizeof(struct info_ctx),
	.num_options = ARRAY_SIZE(info_options),
	.options = info_options,
	.parse = info_parse,
	.main = info_main,
};

APK_DEFINE_APPLET(apk_info);