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
|
/* 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;
unsigned short solver_flags;
};
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':
ctx->solver_flags |= APK_SOLVERF_UPGRADE;
break;
case 'a':
ctx->solver_flags |= APK_SOLVERF_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 void print_dep_errors(char *label, struct apk_dependency_array *deps)
{
int i, print_label = 1;
char buf[256];
apk_blob_t p = APK_BLOB_BUF(buf);
for (i = 0; i < deps->num; i++) {
struct apk_dependency *dep = &deps->item[i];
struct apk_package *pkg = dep->name->state_ptr;
if (pkg != NULL && apk_dep_is_satisfied(dep, pkg))
continue;
if (print_label) {
print_label = 0;
printf("%s: ", label);
} else {
printf(" ");
}
apk_blob_push_dep(&p, dep);
p = apk_blob_pushed(APK_BLOB_BUF(buf), p);
fwrite(p.ptr, p.len, 1, stdout);
}
if (!print_label)
printf("\n");
}
static void print_errors_in_solution(struct apk_database *db, int unsatisfiable,
struct apk_package_array *solution)
{
int i;
printf("%d unsatisfiable dependencies (solution with %d names)\n",
unsatisfiable, solution->num);
for (i = 0; i < solution->num; i++) {
struct apk_package *pkg = solution->item[i];
pkg->name->state_ptr = pkg;
}
print_dep_errors("world", db->world);
for (i = 0; i < solution->num; i++) {
struct apk_package *pkg = solution->item[i];
char pkgtext[256];
snprintf(pkgtext, sizeof(pkgtext), PKG_VER_FMT, PKG_VER_PRINTF(solution->item[i]));
print_dep_errors(pkgtext, pkg->depends);
}
}
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, r;
if (argc != 1)
return -EINVAL;
/* load installed db */
if (ctx->installed_db != NULL) {
bs = apk_bstream_from_file(AT_FDCWD, ctx->installed_db);
if (bs != NULL) {
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]);
if (bs != NULL) {
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 */
r = apk_solver_solve(db, ctx->solver_flags, db->world, &solution, &changeset);
if (r == 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);
}
} else { /* r >= 1*/
print_errors_in_solution(db, r, solution);
}
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);
|
