diff options
Diffstat (limited to 'src/app_del.c')
| -rw-r--r-- | src/app_del.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/app_del.c b/src/app_del.c new file mode 100644 index 0000000..a5e8ddd --- /dev/null +++ b/src/app_del.c @@ -0,0 +1,178 @@ +/* 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. + * + * 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 "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; +}; + +static int option_parse_applet(void *pctx, struct apk_db_options *dbopts, int optch, const char *optarg) +{ + struct del_ctx *ctx = (struct del_ctx *) pctx; + + switch (optch) { + case 'r': + ctx->recursive_delete = 1; + break; + default: + return -ENOTSUP; + } + return 0; +} + +static const struct apk_option options_applet[] = { + { 'r', "rdepends" }, +}; + +static const struct apk_option_group optgroup_applet = { + .name = "Delete", + .options = options_applet, + .num_options = ARRAY_SIZE(options_applet), + .parse = option_parse_applet, +}; + +struct not_deleted_ctx { + struct apk_indent indent; + struct apk_name *name; + unsigned int matches; + int header; +}; + +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_dependency *d; + struct apk_provider *p; + + if (pkg0->name != ctx->name) { + if (!ctx->header) { + apk_message("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; + } + + apk_print_indented(&ctx->indent, APK_BLOB_STR(pkg0->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 not_deleted_ctx *ctx = (struct not_deleted_ctx *) pctx; + struct apk_provider *p; + + ctx->indent.indent = 0; + 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 del_ctx *ctx = (struct del_ctx *) pctx; + struct apk_package *pkg; + + if (!name) { + apk_error("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_database *db, struct apk_string_array *args) +{ + struct del_ctx *ctx = (struct del_ctx *) pctx; + struct not_deleted_ctx ndctx = {}; + struct apk_changeset changeset = {}; + struct apk_change *change; + 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; + 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", + .arguments = "PACKAGE...", + .open_flags = APK_OPENF_WRITE | APK_OPENF_NO_AUTOUPDATE, + .command_groups = APK_COMMAND_GROUP_INSTALL, + .context_size = sizeof(struct del_ctx), + .optgroups = { &optgroup_global, &optgroup_commit, &optgroup_applet }, + .main = del_main, +}; + +APK_DEFINE_APPLET(apk_del); |