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/* app_del.c - Alpine Package Keeper (APK)
*
* Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
* Copyright (C) 2008-2011 Timo Teräs <timo.teras@iki.fi>
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-only
*/
#include <stdio.h>
#include "apk_applet.h"
#include "apk_database.h"
#include "apk_print.h"
#include "apk_solver.h"
struct del_ctx {
int recursive_delete : 1;
struct apk_dependency_array *world;
int errors;
};
#define DEL_OPTIONS(OPT) \
OPT(OPT_DEL_redepends, APK_OPT_SH("r") "rdepends")
APK_OPT_APPLET(option_desc, DEL_OPTIONS);
static int option_parse_applet(void *pctx, struct apk_ctx *ac, int opt, const char *optarg)
{
struct del_ctx *ctx = (struct del_ctx *) pctx;
switch (opt) {
case OPT_DEL_redepends:
ctx->recursive_delete = 1;
break;
default:
return -ENOTSUP;
}
return 0;
}
static const struct apk_option_group optgroup_applet = {
.desc = option_desc,
.parse = option_parse_applet,
};
struct not_deleted_ctx {
struct apk_out *out;
struct apk_indent indent;
struct apk_name *name;
unsigned int matches;
int header;
};
static inline int name_in_world(struct apk_name *n)
{
return n->state_int == 1;
}
static void print_not_deleted_pkg(struct apk_package *pkg0, struct apk_dependency *dep0,
struct apk_package *pkg, void *pctx)
{
struct not_deleted_ctx *ctx = (struct not_deleted_ctx *) pctx;
struct apk_out *out = ctx->out;
struct apk_dependency *d;
struct apk_provider *p;
if (!ctx->header) {
apk_msg(out, "World updated, but the following packages are not removed due to:");
ctx->header = 1;
}
if (!ctx->indent.indent) {
ctx->indent.x = printf(" %s:", ctx->name->name);
ctx->indent.indent = ctx->indent.x + 1;
}
if (name_in_world(pkg0->name)) {
apk_print_indented(&ctx->indent, APK_BLOB_STR(pkg0->name->name));
}
foreach_array_item(d, pkg0->provides) {
if (!name_in_world(d->name)) continue;
apk_print_indented(&ctx->indent, APK_BLOB_STR(d->name->name));
}
apk_pkg_foreach_reverse_dependency(pkg0, ctx->matches, print_not_deleted_pkg, pctx);
foreach_array_item(d, pkg0->install_if) {
foreach_array_item(p, d->name->providers) {
if (!p->pkg->marked) continue;
if (apk_pkg_match_genid(p->pkg, ctx->matches)) continue;
print_not_deleted_pkg(p->pkg, NULL, NULL, pctx);
}
}
}
static void print_not_deleted_name(struct apk_database *db, const char *match,
struct apk_name *name, void *pctx)
{
struct apk_out *out = &db->ctx->out;
struct not_deleted_ctx *ctx = (struct not_deleted_ctx *) pctx;
struct apk_provider *p;
ctx->indent = (struct apk_indent) { .out = out };
ctx->name = name;
ctx->matches = apk_foreach_genid() | APK_FOREACH_MARKED | APK_DEP_SATISFIES;
foreach_array_item(p, name->providers)
if (p->pkg->marked)
print_not_deleted_pkg(p->pkg, NULL, NULL, ctx);
if (ctx->indent.indent)
printf("\n");
}
static void delete_pkg(struct apk_package *pkg0, struct apk_dependency *dep0,
struct apk_package *pkg, void *pctx)
{
struct del_ctx *ctx = (struct del_ctx *) pctx;
apk_deps_del(&ctx->world, pkg0->name);
if (ctx->recursive_delete)
apk_pkg_foreach_reverse_dependency(
pkg0, APK_FOREACH_INSTALLED | APK_DEP_SATISFIES,
delete_pkg, pctx);
}
static void delete_name(struct apk_database *db, const char *match,
struct apk_name *name, void *pctx)
{
struct apk_out *out = &db->ctx->out;
struct del_ctx *ctx = (struct del_ctx *) pctx;
struct apk_package *pkg;
if (!name) {
apk_err(out, "No such package: %s", match);
ctx->errors++;
return;
}
pkg = apk_pkg_get_installed(name);
if (pkg != NULL)
delete_pkg(pkg, NULL, NULL, pctx);
else
apk_deps_del(&ctx->world, name);
}
static int del_main(void *pctx, struct apk_ctx *ac, struct apk_string_array *args)
{
struct apk_database *db = ac->db;
struct del_ctx *ctx = (struct del_ctx *) pctx;
struct not_deleted_ctx ndctx = { .out = &db->ctx->out };
struct apk_changeset changeset = {};
struct apk_change *change;
struct apk_dependency *d;
int r = 0;
apk_dependency_array_copy(&ctx->world, db->world);
apk_name_foreach_matching(db, args, apk_foreach_genid(), delete_name, ctx);
if (ctx->errors) return ctx->errors;
r = apk_solver_solve(db, 0, ctx->world, &changeset);
if (r == 0) {
/* check for non-deleted package names */
foreach_array_item(change, changeset.changes)
if (change->new_pkg != NULL)
change->new_pkg->marked = 1;
foreach_array_item(d, ctx->world)
d->name->state_int = 1;
apk_name_foreach_matching(
db, args,
apk_foreach_genid() | APK_FOREACH_MARKED | APK_DEP_SATISFIES,
print_not_deleted_name, &ndctx);
if (ndctx.header)
printf("\n");
r = apk_solver_commit_changeset(db, &changeset, ctx->world);
} else {
apk_solver_print_errors(db, &changeset, ctx->world);
}
apk_change_array_free(&changeset.changes);
apk_dependency_array_free(&ctx->world);
return r;
}
static struct apk_applet apk_del = {
.name = "del",
.open_flags = APK_OPENF_WRITE | APK_OPENF_NO_AUTOUPDATE,
.context_size = sizeof(struct del_ctx),
.optgroups = { &optgroup_global, &optgroup_commit, &optgroup_applet },
.main = del_main,
};
APK_DEFINE_APPLET(apk_del);
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