solver: new package selection logic (which is not yet used)
* basic code for a backtracking, forward checking dependency satisfier * works better when there are tricky dependencies to solve (when can't just upgrade everything to most preferred versions) * the new code always evaluates all of 'world' constraints (old code just does incremental updates based on heuristics) * is probably somewhat slower than old code (probably unnoticeable difference in most cases) * makes easier to write support for provides and repository pinning * test applet and a bunch of test cases added which uses the new code * from the old feature set install_if is not yet implementedcute-signatures
parent
169cb3a97e
commit
79b53d4d76
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@ -1,5 +1,6 @@
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apk
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src/apk
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apk.static
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src/apk_test
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src/apk.static
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*.o
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*.o
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*.d
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*.d
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*.cmd
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*.cmd
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4
Makefile
4
Makefile
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@ -36,5 +36,9 @@ install:
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$(INSTALLDIR) $(DESTDIR)$(DOCDIR)
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$(INSTALLDIR) $(DESTDIR)$(DOCDIR)
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$(INSTALL) README $(DESTDIR)$(DOCDIR)
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$(INSTALL) README $(DESTDIR)$(DOCDIR)
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test: FORCE
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$(Q)$(MAKE) TEST=y
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$(Q)$(MAKE) -C test
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static:
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static:
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$(Q)$(MAKE) STATIC=y
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$(Q)$(MAKE) STATIC=y
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13
src/Makefile
13
src/Makefile
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@ -23,7 +23,13 @@ apk-objs := apk.o add.o del.o fix.o update.o info.o \
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audit.o verify.o dot.o
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audit.o verify.o dot.o
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libapk.so-objs := common.o state.o database.o package.o archive.o \
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libapk.so-objs := common.o state.o database.o package.o archive.o \
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version.o io.o url.o gunzip.o blob.o hash.o print.o
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version.o io.o url.o gunzip.o blob.o hash.o print.o \
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solver.o topology.o
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ifeq ($(TEST),y)
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progs-y += apk_test
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apk_test-objs := apk.o test.o $(libapk.so-objs)
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endif
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ifeq ($(SHARED_LIBAPK),)
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ifeq ($(SHARED_LIBAPK),)
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apk-objs += $(libapk.so-objs)
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apk-objs += $(libapk.so-objs)
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@ -47,15 +53,16 @@ progs-$(STATIC) += apk.static
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apk.static-objs := $(filter-out apk.o,$(apk-objs)) apk-static.o
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apk.static-objs := $(filter-out apk.o,$(apk-objs)) apk-static.o
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LDFLAGS_apk.static := -static
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LDFLAGS_apk.static := -static
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LDFLAGS_apk += -nopie -L$(obj)
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LDFLAGS_apk += -nopie -L$(obj)
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LDFLAGS_apk_test += -nopie -L$(obj)
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CFLAGS_ALL += $(shell pkg-config --cflags $(PKGDEPS))
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CFLAGS_ALL += $(shell pkg-config --cflags $(PKGDEPS))
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LIBS := -Wl,--as-needed \
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LIBS := -Wl,--as-needed \
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$(shell pkg-config --libs $(PKGDEPS)) \
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$(shell pkg-config --libs $(PKGDEPS)) \
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-Wl,--no-as-needed
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-Wl,--no-as-needed
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$(obj)/apk: $(LIBAPK-y)
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$(obj)/apk: $(LIBAPK-y)
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$(obj)/apk.so: $(obj)/libapk.so
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$(obj)/apk.so: $(obj)/libapk.so
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install: $(obj)/apk $(LIBAPK-y) $(LUA_LIB-y)
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install: $(obj)/apk $(LIBAPK-y) $(LUA_LIB-y)
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$(INSTALLDIR) $(DESTDIR)$(SBINDIR)
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$(INSTALLDIR) $(DESTDIR)$(SBINDIR)
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@ -80,6 +80,7 @@ struct apk_installed_package {
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struct apk_package {
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struct apk_package {
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apk_hash_node hash_node;
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apk_hash_node hash_node;
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unsigned int topology_sort;
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struct apk_name *name;
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struct apk_name *name;
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struct apk_installed_package *ipkg;
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struct apk_installed_package *ipkg;
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apk_blob_t *version, *arch, *license;
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apk_blob_t *version, *arch, *license;
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@ -0,0 +1,33 @@
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/* apk_solver.h - Alpine Package Keeper (APK)
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*
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* Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
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* Copyright (C) 2008 Timo Teräs <timo.teras@iki.fi>
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* All rights reserved.
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*
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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
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* by the Free Software Foundation. See http://www.gnu.org/ for details.
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*/
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#ifndef APK_SOLVER_H
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#define APK_SOLVER_H
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struct apk_change {
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struct apk_package *oldpkg;
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struct apk_package *newpkg;
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};
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APK_ARRAY(apk_change_array, struct apk_change);
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struct apk_changeset {
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struct apk_change_array *changes;
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};
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void apk_solver_sort(struct apk_database *db);
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int apk_solver_solve(struct apk_database *db, struct apk_dependency_array *world,
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struct apk_package_array **solution);
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int apk_solver_generate_changeset(struct apk_database *db,
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struct apk_package_array *solution,
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struct apk_changeset *changeset);
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#endif
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@ -0,0 +1,563 @@
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/* solver.c - Alpine Package Keeper (APK)
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* A backtracking, forward checking dependency graph solver.
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*
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* Copyright (C) 2011 Timo Teräs <timo.teras@iki.fi>
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* All rights reserved.
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*
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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
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* by the Free Software Foundation. See http://www.gnu.org/ for details.
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*/
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/* FIXME: install-if not supported yet */
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#include <stdlib.h>
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#include "apk_defines.h"
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#include "apk_database.h"
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#include "apk_package.h"
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#include "apk_solver.h"
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#if 0
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#include <stdio.h>
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#define dbg_printf(args...) fprintf(stderr, args)
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#else
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#define dbg_printf(args...)
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#endif
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#define APK_PKGSTF_NOINSTALL 0
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#define APK_PKGSTF_INSTALL 1
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#define APK_PKGSTF_BRANCH 2
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#define APK_PKGSTF_ALT_BRANCH 4
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struct apk_package_state {
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struct apk_package *backtrack;
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unsigned short flags;
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unsigned short conflicts;
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};
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struct apk_name_state {
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struct list_head unsolved_list;
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struct apk_package *chosen;
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struct apk_package *preferred;
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unsigned short requirers;
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};
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struct apk_solver_state {
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struct apk_database *db;
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struct apk_package_state *pkg_state;
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struct apk_name_state *name_state;
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struct list_head unsolved_list_head;
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struct apk_package *latest_decision;
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unsigned int topology_position;
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unsigned int assigned_names;
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struct apk_package_array *best_solution;
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unsigned int best_cost;
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};
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static int apply_constraint(struct apk_solver_state *ss, struct apk_dependency *dep);
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static int undo_constraint(struct apk_solver_state *ss, struct apk_dependency *dep);
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static int push_decision(struct apk_solver_state *ss, struct apk_package *pkg,
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int flags);
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static inline int pkg_available(struct apk_database *db, struct apk_package *pkg)
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{
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if (pkg->ipkg != NULL)
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return TRUE;
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if (pkg->installed_size == 0)
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return TRUE;
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if (pkg->filename != NULL)
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return TRUE;
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if (apk_db_select_repo(db, pkg) != NULL)
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return TRUE;
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return FALSE;
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}
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static int foreach_dependency(struct apk_solver_state *ss, struct apk_dependency_array *deps,
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int (*func)(struct apk_solver_state *ss, struct apk_dependency *dep))
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{
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int i, r = 0;
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for (i = 0; i < deps->num; i++)
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r += func(ss, &deps->item[i]);
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return r;
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}
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static void calculate_preferred(struct apk_database *db,
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struct apk_name *name,
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struct apk_name_state *ns)
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{
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struct apk_package *installed = NULL, *latest = NULL;
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int i;
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/* Get latest and installed packages */
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for (i = 0; i < name->pkgs->num; i++) {
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struct apk_package *pkg = name->pkgs->item[i];
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if (pkg->ipkg != NULL)
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installed = pkg;
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else if (!pkg_available(db, pkg))
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continue;
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if (latest == NULL) {
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latest = pkg;
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continue;
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}
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if ((apk_flags & APK_PREFER_AVAILABLE) ||
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(name->flags & APK_NAME_REINSTALL)) {
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if (latest->repos != 0 && pkg->repos == 0)
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continue;
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if (latest->repos == 0 && pkg->repos != 0) {
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latest = pkg;
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continue;
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}
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/* Otherwise both are not available, or both are
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* available and we just compare the versions then */
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}
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if (apk_pkg_version_compare(pkg, latest) == APK_VERSION_GREATER)
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latest = pkg;
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}
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/* Choose the best looking candidate. */
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if (apk_flags & APK_UPGRADE) {
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ns->preferred = latest;
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} else {
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if (installed != NULL &&
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(installed->repos != 0 ||
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!(name->flags & APK_NAME_REINSTALL)))
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ns->preferred = installed;
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else
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ns->preferred = latest;
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}
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}
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static int update_name_state(struct apk_solver_state *ss,
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struct apk_name *name, struct apk_name_state *ns)
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{
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struct apk_package *pkg_best = NULL;
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int i, options = 0;
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for (i = 0; i < name->pkgs->num; i++) {
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struct apk_package *pkg0 = name->pkgs->item[i];
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struct apk_package_state *ps0 = &ss->pkg_state[pkg0->topology_sort];
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if (pkg0->topology_sort >= ss->topology_position ||
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ps0->conflicts != 0)
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continue;
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options++;
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if (pkg_best == NULL ||
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pkg0->topology_sort > pkg_best->topology_sort)
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pkg_best = pkg0;
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}
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ns->chosen = pkg_best;
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dbg_printf("%s: adjusted preference %d -> %d (options left %d)\n",
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name->name, ss->topology_position, ns->chosen->topology_sort,
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options);
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return options;
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}
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static int apply_decision(struct apk_solver_state *ss,
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struct apk_package *pkg,
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struct apk_package_state *ps)
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{
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struct apk_name_state *ns = &ss->name_state[pkg->name->id];
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|
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dbg_printf("apply_decision: " PKG_VER_FMT " %s\n", PKG_VER_PRINTF(pkg),
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(ps->flags & APK_PKGSTF_INSTALL) ? "INSTALL" : "NO_INSTALL");
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if (ps->flags & APK_PKGSTF_INSTALL) {
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ss->assigned_names++;
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ns->chosen = pkg;
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if (list_hashed(&ns->unsolved_list)) {
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list_del(&ns->unsolved_list);
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list_init(&ns->unsolved_list);
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dbg_printf("%s: deleting from unsolved list\n",
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pkg->name->name);
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}
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return foreach_dependency(ss, pkg->depends, apply_constraint);
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|
} else {
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if (!list_hashed(&ns->unsolved_list)) {
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ns->chosen = NULL;
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return 0;
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||||||
|
}
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||||||
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if (update_name_state(ss, pkg->name, ns) != 1)
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return 0;
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/* the name is required and we are left with only one candidate
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* after deciding to not install pkg; autoselect the last option */
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||||||
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return push_decision(ss, ns->chosen, APK_PKGSTF_INSTALL);
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||||||
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}
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||||||
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}
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||||||
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||||||
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static void undo_decision(struct apk_solver_state *ss,
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struct apk_package *pkg,
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struct apk_package_state *ps)
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||||||
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{
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||||||
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struct apk_name_state *ns = &ss->name_state[pkg->name->id];
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|
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||||||
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dbg_printf("undo_decision: " PKG_VER_FMT " %s\n", PKG_VER_PRINTF(pkg),
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||||||
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(ps->flags & APK_PKGSTF_INSTALL) ? "INSTALL" : "NO_INSTALL");
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if (ps->flags & APK_PKGSTF_INSTALL) {
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ss->assigned_names--;
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foreach_dependency(ss, pkg->depends, undo_constraint);
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|
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if (ns->requirers) {
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list_add(&ns->unsolved_list, &ss->unsolved_list_head);
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dbg_printf("%s: adding back to unsolved list (requirers: %d)\n",
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pkg->name->name, ns->requirers);
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||||||
|
} else {
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ns->chosen = NULL;
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||||||
|
}
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||||||
|
}
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||||||
|
}
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||||||
|
|
||||||
|
static int push_decision(struct apk_solver_state *ss, struct apk_package *pkg,
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int flags)
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||||||
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{
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||||||
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struct apk_package_state *ps = &ss->pkg_state[pkg->topology_sort];
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||||||
|
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ps->backtrack = ss->latest_decision;
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||||||
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ps->flags = flags;
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||||||
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ss->latest_decision = pkg;
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||||||
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if (flags & APK_PKGSTF_BRANCH) {
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ss->topology_position = pkg->topology_sort;
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dbg_printf("push_decision: adding new BRANCH at topology_position %d\n",
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ss->topology_position);
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|
} else
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ps->flags |= APK_PKGSTF_ALT_BRANCH;
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||||||
|
|
||||||
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return apply_decision(ss, pkg, ps);
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||||||
|
}
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|
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static int next_branch(struct apk_solver_state *ss)
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{
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struct apk_package *pkg;
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struct apk_package_state *ps;
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int r;
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|
|
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|
while (1) {
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pkg = ss->latest_decision;
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ps = &ss->pkg_state[pkg->topology_sort];
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undo_decision(ss, pkg, ps);
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if (ps->flags & APK_PKGSTF_ALT_BRANCH) {
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pkg = ps->backtrack;
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||||||
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ss->latest_decision = pkg;
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||||||
|
if (pkg == NULL) /* at root, can't back track */
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||||||
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return 1;
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||||||
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ss->topology_position = pkg->topology_sort;
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||||||
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dbg_printf("next_branch: undo decision at topology_position %d\n",
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||||||
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ss->topology_position);
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||||||
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} else {
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dbg_printf("next_branch: swapping BRANCH at topology_position %d\n",
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||||||
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ss->topology_position);
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||||||
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|
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ps->flags |= APK_PKGSTF_ALT_BRANCH;
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ps->flags ^= APK_PKGSTF_INSTALL;
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||||||
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r = apply_decision(ss, pkg, ps);
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||||||
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if (r == 0 /*|| report_errors */)
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||||||
|
return r;
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||||||
|
}
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||||||
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}
|
||||||
|
}
|
||||||
|
|
||||||
|
static int apply_constraint(struct apk_solver_state *ss, struct apk_dependency *dep)
|
||||||
|
{
|
||||||
|
struct apk_name *name = dep->name;
|
||||||
|
struct apk_name_state *ns = &ss->name_state[name->id];
|
||||||
|
struct apk_package *pkg_best = NULL;
|
||||||
|
int i, options = 0;
|
||||||
|
|
||||||
|
for (i = 0; i < name->pkgs->num; i++) {
|
||||||
|
struct apk_package *pkg0 = name->pkgs->item[i];
|
||||||
|
struct apk_package_state *ps0 = &ss->pkg_state[pkg0->topology_sort];
|
||||||
|
|
||||||
|
if (pkg0->topology_sort >= ss->topology_position) {
|
||||||
|
dbg_printf(PKG_VER_FMT ": topology skip %d > %d\n",
|
||||||
|
PKG_VER_PRINTF(pkg0),
|
||||||
|
pkg0->topology_sort, ss->topology_position);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!apk_dep_is_satisfied(dep, pkg0)) {
|
||||||
|
ps0->conflicts++;
|
||||||
|
dbg_printf(PKG_VER_FMT ": conflicts++ -> %d\n",
|
||||||
|
PKG_VER_PRINTF(pkg0),
|
||||||
|
ps0->conflicts);
|
||||||
|
}
|
||||||
|
if (ps0->conflicts == 0) {
|
||||||
|
options++;
|
||||||
|
if (pkg_best == NULL ||
|
||||||
|
pkg0->topology_sort > pkg_best->topology_sort)
|
||||||
|
pkg_best = pkg0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
ns->requirers++;
|
||||||
|
if (!list_hashed(&ns->unsolved_list) && ns->chosen != NULL) {
|
||||||
|
dbg_printf(PKG_VER_FMT " selected already for %s\n", PKG_VER_PRINTF(ns->chosen),
|
||||||
|
dep->name->name);
|
||||||
|
return !apk_dep_is_satisfied(dep, ns->chosen);
|
||||||
|
}
|
||||||
|
|
||||||
|
ns->chosen = pkg_best;
|
||||||
|
if (options == 0) {
|
||||||
|
/* we conflicted with all possible options */
|
||||||
|
if (list_hashed(&ns->unsolved_list)) {
|
||||||
|
dbg_printf("%s: deleting unsolved (unable to satisfy)\n",
|
||||||
|
name->name);
|
||||||
|
list_del(&ns->unsolved_list);
|
||||||
|
list_init(&ns->unsolved_list);
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
if (options == 1) {
|
||||||
|
/* we can short circuit to select the only option
|
||||||
|
* possible */
|
||||||
|
return push_decision(ss, pkg_best, APK_PKGSTF_INSTALL);
|
||||||
|
}
|
||||||
|
/* multiple ways to satisfy the requirement */
|
||||||
|
if (ns->requirers == 1) {
|
||||||
|
list_init(&ns->unsolved_list);
|
||||||
|
list_add(&ns->unsolved_list, &ss->unsolved_list_head);
|
||||||
|
dbg_printf("%s: adding to unsolved list (%d options)\n",
|
||||||
|
name->name, options);
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int undo_constraint(struct apk_solver_state *ss, struct apk_dependency *dep)
|
||||||
|
{
|
||||||
|
struct apk_name *name = dep->name;
|
||||||
|
struct apk_name_state *ns = &ss->name_state[name->id];
|
||||||
|
struct apk_package *pkg_best = NULL;
|
||||||
|
int i, had_options = 0, options = 0;
|
||||||
|
|
||||||
|
for (i = 0; i < name->pkgs->num; i++) {
|
||||||
|
struct apk_package *pkg0 = name->pkgs->item[i];
|
||||||
|
struct apk_package_state *ps0 = &ss->pkg_state[pkg0->topology_sort];
|
||||||
|
|
||||||
|
if (pkg0->topology_sort >= ss->topology_position)
|
||||||
|
continue;
|
||||||
|
|
||||||
|
if (ps0->conflicts == 0)
|
||||||
|
had_options++;
|
||||||
|
if (!apk_dep_is_satisfied(dep, pkg0)) {
|
||||||
|
ps0->conflicts--;
|
||||||
|
dbg_printf(PKG_VER_FMT ": conflicts-- -> %d\n",
|
||||||
|
PKG_VER_PRINTF(pkg0),
|
||||||
|
ps0->conflicts);
|
||||||
|
}
|
||||||
|
if (ps0->conflicts == 0) {
|
||||||
|
options++;
|
||||||
|
if (pkg_best == NULL ||
|
||||||
|
pkg0->topology_sort > pkg_best->topology_sort)
|
||||||
|
pkg_best = pkg0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
ns->requirers--;
|
||||||
|
|
||||||
|
if (ns->requirers == 0) {
|
||||||
|
if (list_hashed(&ns->unsolved_list)) {
|
||||||
|
list_del(&ns->unsolved_list);
|
||||||
|
list_init(&ns->unsolved_list);
|
||||||
|
ns->chosen = NULL;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
ns->chosen = pkg_best;
|
||||||
|
if (had_options == 0 && options != 0) {
|
||||||
|
if (!list_hashed(&ns->unsolved_list)) {
|
||||||
|
list_add(&ns->unsolved_list, &ss->unsolved_list_head);
|
||||||
|
dbg_printf("%s: adding back to unsolved list (with %d options, %d requirers)\n",
|
||||||
|
name->name, options, ns->requirers);
|
||||||
|
} else {
|
||||||
|
ns->chosen = NULL;
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int expand_branch(struct apk_solver_state *ss)
|
||||||
|
{
|
||||||
|
int r;
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
struct apk_name_state *ns;
|
||||||
|
struct apk_package *pkg0 = NULL;
|
||||||
|
|
||||||
|
/* FIXME: change unsolved_list to a priority queue */
|
||||||
|
list_for_each_entry(ns, &ss->unsolved_list_head, unsolved_list) {
|
||||||
|
if (pkg0 == NULL ||
|
||||||
|
ns->chosen->topology_sort > pkg0->topology_sort)
|
||||||
|
pkg0 = ns->chosen;
|
||||||
|
}
|
||||||
|
if (pkg0 == NULL) {
|
||||||
|
dbg_printf("expand_branch: list is empty\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* someone needs to provide this name -- find next eligible
|
||||||
|
* provider candidate */
|
||||||
|
ns = &ss->name_state[pkg0->name->id];
|
||||||
|
dbg_printf("expand_branch: %s %d\n", pkg0->name->name, pkg0->topology_sort);
|
||||||
|
|
||||||
|
/* Is there something we can still use? */
|
||||||
|
if (ns->preferred == NULL)
|
||||||
|
calculate_preferred(ss->db, pkg0->name, ns);
|
||||||
|
|
||||||
|
r = push_decision(ss, pkg0,
|
||||||
|
(pkg0 == ns->preferred) ?
|
||||||
|
(APK_PKGSTF_INSTALL | APK_PKGSTF_BRANCH) :
|
||||||
|
(APK_PKGSTF_NOINSTALL | APK_PKGSTF_BRANCH));
|
||||||
|
|
||||||
|
if (/*no_error_reporting &&*/ r)
|
||||||
|
return r;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void record_solution(struct apk_solver_state *ss)
|
||||||
|
{
|
||||||
|
struct apk_package *pkg;
|
||||||
|
struct apk_package_state *ps;
|
||||||
|
int i;
|
||||||
|
|
||||||
|
apk_package_array_resize(&ss->best_solution, ss->assigned_names);
|
||||||
|
|
||||||
|
i = 0;
|
||||||
|
pkg = ss->latest_decision;
|
||||||
|
while (pkg != NULL) {
|
||||||
|
ps = &ss->pkg_state[pkg->topology_sort];
|
||||||
|
if (ps->flags & APK_PKGSTF_INSTALL)
|
||||||
|
ss->best_solution->item[i++] = pkg;
|
||||||
|
|
||||||
|
dbg_printf("record_solution: " PKG_VER_FMT ": %sINSTALL\n",
|
||||||
|
PKG_VER_PRINTF(pkg),
|
||||||
|
(ps->flags & APK_PKGSTF_INSTALL) ? "" : "NO_");
|
||||||
|
|
||||||
|
pkg = ps->backtrack;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int apk_solver_solve(struct apk_database *db, struct apk_dependency_array *world,
|
||||||
|
struct apk_package_array **solution)
|
||||||
|
{
|
||||||
|
struct apk_solver_state *ss;
|
||||||
|
int r;
|
||||||
|
|
||||||
|
ss = calloc(1, sizeof(struct apk_solver_state));
|
||||||
|
ss->db = db;
|
||||||
|
ss->topology_position = -1;
|
||||||
|
list_init(&ss->unsolved_list_head);
|
||||||
|
ss->pkg_state = calloc(db->available.packages.num_items+1, sizeof(struct apk_package_state));
|
||||||
|
ss->name_state = calloc(db->available.names.num_items+1, sizeof(struct apk_name_state));
|
||||||
|
|
||||||
|
r = foreach_dependency(ss, world, apply_constraint);
|
||||||
|
while (r == 0) {
|
||||||
|
if (expand_branch(ss) == 0) {
|
||||||
|
/* found solution*/
|
||||||
|
/* FIXME: we should check other permutations if they
|
||||||
|
* have smaller cost to find optimal changeset */
|
||||||
|
break;
|
||||||
|
} else {
|
||||||
|
/* conflicting constraints -- backtrack */
|
||||||
|
r = next_branch(ss);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* collect packages */
|
||||||
|
if (r == 0) {
|
||||||
|
record_solution(ss);
|
||||||
|
*solution = ss->best_solution;
|
||||||
|
}
|
||||||
|
|
||||||
|
free(ss->name_state);
|
||||||
|
free(ss->pkg_state);
|
||||||
|
free(ss);
|
||||||
|
|
||||||
|
return r;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int compare_change(const void *p1, const void *p2)
|
||||||
|
{
|
||||||
|
const struct apk_change *c1 = (const struct apk_change *) p1;
|
||||||
|
const struct apk_change *c2 = (const struct apk_change *) p2;
|
||||||
|
|
||||||
|
if (c1->newpkg == NULL) {
|
||||||
|
if (c2->newpkg == NULL)
|
||||||
|
/* both deleted - reverse topology order */
|
||||||
|
return c1->oldpkg->topology_sort - c2->oldpkg->topology_sort;
|
||||||
|
|
||||||
|
/* c1 deleted, c2 installed -> c2 first*/
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
if (c2->newpkg == NULL)
|
||||||
|
/* c1 installed, c2 deleted -> c1 first*/
|
||||||
|
return 1;
|
||||||
|
|
||||||
|
return c2->newpkg->topology_sort - c1->newpkg->topology_sort;
|
||||||
|
}
|
||||||
|
|
||||||
|
int apk_solver_generate_changeset(struct apk_database *db,
|
||||||
|
struct apk_package_array *solution,
|
||||||
|
struct apk_changeset *changeset)
|
||||||
|
{
|
||||||
|
struct apk_name *name;
|
||||||
|
struct apk_package *pkg, *pkg0;
|
||||||
|
struct apk_installed_package *ipkg;
|
||||||
|
int num_installs = 0, num_removed = 0, ci = 0;
|
||||||
|
int i, j;
|
||||||
|
|
||||||
|
/* calculate change set size */
|
||||||
|
for (i = 0; i < solution->num; i++) {
|
||||||
|
pkg = solution->item[i];
|
||||||
|
name = pkg->name;
|
||||||
|
if (pkg->ipkg == NULL || (name->flags & APK_NAME_REINSTALL))
|
||||||
|
num_installs++;
|
||||||
|
name->flags |= APK_NAME_VISITED;
|
||||||
|
}
|
||||||
|
|
||||||
|
list_for_each_entry(ipkg, &db->installed.packages, installed_pkgs_list) {
|
||||||
|
if (!(ipkg->pkg->name->flags & APK_NAME_VISITED))
|
||||||
|
num_removed++;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* construct changeset */
|
||||||
|
apk_change_array_resize(&changeset->changes, num_installs + num_removed);
|
||||||
|
list_for_each_entry(ipkg, &db->installed.packages, installed_pkgs_list) {
|
||||||
|
if (ipkg->pkg->name->flags & APK_NAME_VISITED)
|
||||||
|
continue;
|
||||||
|
changeset->changes->item[ci].oldpkg = ipkg->pkg;
|
||||||
|
ci++;
|
||||||
|
}
|
||||||
|
for (i = 0; i < solution->num; i++) {
|
||||||
|
pkg = solution->item[i];
|
||||||
|
name = pkg->name;
|
||||||
|
|
||||||
|
if (pkg->ipkg == NULL || (name->flags & APK_NAME_REINSTALL)) {
|
||||||
|
for (j = 0; j < name->pkgs->num; j++) {
|
||||||
|
pkg0 = name->pkgs->item[j];
|
||||||
|
if (pkg0->ipkg == NULL)
|
||||||
|
continue;
|
||||||
|
changeset->changes->item[ci].oldpkg = pkg0;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
changeset->changes->item[ci].newpkg = pkg;
|
||||||
|
ci++;
|
||||||
|
}
|
||||||
|
name->flags &= ~APK_NAME_VISITED;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* sort changeset to topology order */
|
||||||
|
qsort(changeset->changes->item, changeset->changes->num,
|
||||||
|
sizeof(struct apk_change), compare_change);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
|
@ -0,0 +1,163 @@
|
||||||
|
/* 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;
|
||||||
|
};
|
||||||
|
|
||||||
|
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':
|
||||||
|
apk_flags |= APK_UPGRADE;
|
||||||
|
break;
|
||||||
|
case 'a':
|
||||||
|
apk_flags |= APK_PREFER_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 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;
|
||||||
|
|
||||||
|
if (argc != 1)
|
||||||
|
return -EINVAL;
|
||||||
|
|
||||||
|
/* load installed db */
|
||||||
|
if (ctx->installed_db != NULL) {
|
||||||
|
bs = apk_bstream_from_file(AT_FDCWD, ctx->installed_db);
|
||||||
|
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]);
|
||||||
|
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 */
|
||||||
|
apk_solver_sort(db);
|
||||||
|
if (apk_solver_solve(db, db->world, &solution) != 0)
|
||||||
|
return 1;
|
||||||
|
|
||||||
|
memset(&changeset, 0, sizeof(changeset));
|
||||||
|
if (apk_solver_generate_changeset(db, solution, &changeset) == 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);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
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);
|
|
@ -0,0 +1,56 @@
|
||||||
|
/* topology.c - Alpine Package Keeper (APK)
|
||||||
|
* Topological sorting of database packages
|
||||||
|
*
|
||||||
|
* 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 "apk_database.h"
|
||||||
|
|
||||||
|
static int sort_pkg(apk_hash_item item, void *ctx)
|
||||||
|
{
|
||||||
|
struct apk_package *pkg = (struct apk_package *) item;
|
||||||
|
unsigned int *sort_order = (unsigned int *) ctx;
|
||||||
|
int i, j;
|
||||||
|
|
||||||
|
/* Avoid recursion to same package */
|
||||||
|
if (pkg->topology_sort != 0) {
|
||||||
|
/* if pkg->topology_sort==-1 we have encountered a
|
||||||
|
* dependency loop. Just silently ignore it and pick a
|
||||||
|
* random topology sorting. */
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
pkg->topology_sort = -1;
|
||||||
|
|
||||||
|
/* Sort all dependants before self */
|
||||||
|
for (i = 0; i < pkg->depends->num; i++) {
|
||||||
|
struct apk_dependency *dep = &pkg->depends->item[i];
|
||||||
|
struct apk_name *name0 = dep->name;
|
||||||
|
|
||||||
|
/* FIXME: sort names in order of ascending preference */
|
||||||
|
for (j = 0; j < name0->pkgs->num; j++) {
|
||||||
|
struct apk_package *pkg0 = name0->pkgs->item[j];
|
||||||
|
if (!apk_dep_is_satisfied(dep, pkg0))
|
||||||
|
continue;
|
||||||
|
sort_pkg(pkg0, ctx);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* FIXME: install_if, provides, etc.*/
|
||||||
|
|
||||||
|
/* Finally assign a topology sorting order */
|
||||||
|
pkg->topology_sort = ++(*sort_order);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
void apk_solver_sort(struct apk_database *db)
|
||||||
|
{
|
||||||
|
unsigned int sort_order = 0;
|
||||||
|
|
||||||
|
apk_hash_foreach(&db->available.packages, sort_pkg, &sort_order);
|
||||||
|
}
|
|
@ -13,7 +13,7 @@ SYSREPO ?= http://alpinelinux.org/cgi-bin/dl.cgi/edge/main
|
||||||
LD_LIBRARY_PATH = ../src
|
LD_LIBRARY_PATH = ../src
|
||||||
export LD_LIBRARY_PATH SYSREPO
|
export LD_LIBRARY_PATH SYSREPO
|
||||||
|
|
||||||
all: tests
|
all: tests
|
||||||
|
|
||||||
$(repos):
|
$(repos):
|
||||||
@echo "Building $@"
|
@echo "Building $@"
|
||||||
|
@ -50,11 +50,17 @@ repos.stamp: $(repos)
|
||||||
$(SUDO) rm -rf $(testroot); \
|
$(SUDO) rm -rf $(testroot); \
|
||||||
touch $@
|
touch $@
|
||||||
|
|
||||||
tests: repos.stamp
|
root-tests: repos.stamp
|
||||||
@echo "== Testing `$(APK) --version` =="
|
@echo "== Testing `$(APK) --version` (tests that require root permission) =="
|
||||||
@for i in test*.sh; do \
|
@for i in test*.sh; do \
|
||||||
rm -f $${i%.sh}.ok ;\
|
rm -f $${i%.sh}.ok ;\
|
||||||
$(SUDO) $(MAKE) --no-print-directory $${i%.sh}.ok SYSREPO=$(SYSREPO); \
|
$(SUDO) $(MAKE) --no-print-directory $${i%.sh}.ok SYSREPO=$(SYSREPO); \
|
||||||
done
|
done
|
||||||
|
|
||||||
.PHONY: $(repos)
|
tests:
|
||||||
|
@echo "== Testing `$(APK) --version` =="
|
||||||
|
@for i in $(sort $(filter-out test%.sh,$(wildcard *.sh))); do \
|
||||||
|
./$$i || exit 1 ; \
|
||||||
|
done
|
||||||
|
|
||||||
|
.PHONY: $(repos) tests
|
||||||
|
|
|
@ -0,0 +1,13 @@
|
||||||
|
C:Q1EyN5AdpAOBJWKMR89pp/C66o+OE=
|
||||||
|
P:a
|
||||||
|
V:1
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
D:b
|
||||||
|
|
||||||
|
C:Q1C4uoV7SdMdDhYg4OCVmI71D8HIA=
|
||||||
|
P:b
|
||||||
|
V:1
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
|
|
@ -0,0 +1,26 @@
|
||||||
|
C:Q1EyN5AdpAOBJWKMR89pp/C66o+OE=
|
||||||
|
P:a
|
||||||
|
V:1
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
D:b
|
||||||
|
|
||||||
|
C:Q1eVpkasfqZAukAXFYbgwt4xAMZWU=
|
||||||
|
P:a
|
||||||
|
V:2
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
D:b
|
||||||
|
|
||||||
|
C:Q1C4uoV7SdMdDhYg4OCVmI71D8HIA=
|
||||||
|
P:b
|
||||||
|
V:1
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
|
||||||
|
C:Q1hdUpqRv5mYgJEqW52UmVsvmyysE=
|
||||||
|
P:b
|
||||||
|
V:2
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
|
|
@ -0,0 +1,2 @@
|
||||||
|
Installing a (2)
|
||||||
|
Installing b (2)
|
|
@ -0,0 +1 @@
|
||||||
|
--raw-repository basic.repo a
|
|
@ -0,0 +1 @@
|
||||||
|
--raw-repository basic.repo --installed basic.installed a
|
|
@ -0,0 +1,2 @@
|
||||||
|
Upgrading a (1 -> 2)
|
||||||
|
Upgrading b (1 -> 2)
|
|
@ -0,0 +1 @@
|
||||||
|
--raw-repository basic.repo --installed basic.installed -u a
|
|
@ -0,0 +1 @@
|
||||||
|
Purging a (1)
|
|
@ -0,0 +1 @@
|
||||||
|
--raw-repository basic.repo --installed basic.installed b
|
|
@ -0,0 +1,4 @@
|
||||||
|
Installing a (2)
|
||||||
|
Installing b (1)
|
||||||
|
Installing c (1)
|
||||||
|
Installing d (1.5)
|
|
@ -0,0 +1,6 @@
|
||||||
|
C:Q16m4HrGizBiH4lG6Mxd5EL239L2U=
|
||||||
|
P:d
|
||||||
|
V:1.0
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
|
|
@ -0,0 +1,46 @@
|
||||||
|
C:Q1EyN5AdpAOBJWKMR89pp/C66o+OE=
|
||||||
|
P:a
|
||||||
|
V:2
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
D:b c
|
||||||
|
|
||||||
|
C:Q1eVpkasfqZAukAXFYbgwt4xAMZWU=
|
||||||
|
P:a
|
||||||
|
V:3
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
D:b c d>1.5
|
||||||
|
|
||||||
|
C:Q1C4uoV7SdMdDhYg4OCVmI71D8HIA=
|
||||||
|
P:b
|
||||||
|
V:1
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
D:c d<2.0
|
||||||
|
|
||||||
|
C:Q1hdUpqRv5mYgJEqW52UmVsvmyysE=
|
||||||
|
P:c
|
||||||
|
V:1
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
D:d>1.0
|
||||||
|
|
||||||
|
C:Q16m4HrGizBiH4lG6Mxd5EL239L2U=
|
||||||
|
P:d
|
||||||
|
V:1.0
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
|
||||||
|
C:Q1/hQ3eH2AguTwJVGOz+keypXhXKY=
|
||||||
|
P:d
|
||||||
|
V:1.5
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
|
||||||
|
C:Q19uA/Cwc6UfrQs95TWVDETyAeEYM=
|
||||||
|
P:d
|
||||||
|
V:2.0
|
||||||
|
S:1
|
||||||
|
I:1
|
||||||
|
|
|
@ -0,0 +1 @@
|
||||||
|
--raw-repository complicated1.repo a
|
|
@ -0,0 +1,3 @@
|
||||||
|
Installing b (1)
|
||||||
|
Installing c (1)
|
||||||
|
Installing d (1.5)
|
|
@ -0,0 +1 @@
|
||||||
|
--raw-repository complicated1.repo b
|
|
@ -0,0 +1,2 @@
|
||||||
|
Installing c (1)
|
||||||
|
Installing d (2.0)
|
|
@ -0,0 +1 @@
|
||||||
|
--raw-repository complicated1.repo c
|
|
@ -0,0 +1,4 @@
|
||||||
|
Installing a (2)
|
||||||
|
Installing b (1)
|
||||||
|
Installing c (1)
|
||||||
|
Upgrading d (1.0 -> 1.5)
|
|
@ -0,0 +1 @@
|
||||||
|
--raw-repository complicated1.repo --installed complicated1.installed a
|
|
@ -0,0 +1,23 @@
|
||||||
|
#!/bin/sh
|
||||||
|
|
||||||
|
APK_TEST=../src/apk_test
|
||||||
|
|
||||||
|
fail=0
|
||||||
|
for test in *.test; do
|
||||||
|
bn=$(basename $test .test)
|
||||||
|
$APK_TEST $(cat $test) &> $bn.got
|
||||||
|
if ! cmp $bn.expect $bn.got 2> /dev/null; then
|
||||||
|
fail=$((fail+1))
|
||||||
|
echo "FAIL: $test"
|
||||||
|
diff -ru $bn.expect $bn.got
|
||||||
|
else
|
||||||
|
echo "OK: $test"
|
||||||
|
fi
|
||||||
|
done
|
||||||
|
|
||||||
|
if [ "$fail" != "0" ]; then
|
||||||
|
echo "FAIL: $fail failed test cases"
|
||||||
|
fi
|
||||||
|
|
||||||
|
exit $fail
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
#!/bin/sh
|
#!/bin/sh
|
||||||
|
|
||||||
fail=0
|
fail=0
|
||||||
while read a result b rest ; do
|
cat version.data | while read a result b rest ; do
|
||||||
output="$(../src/apk version -t "$a" "$b")"
|
output="$(../src/apk version -t "$a" "$b")"
|
||||||
if [ "$output" != "$result" ] ; then
|
if [ "$output" != "$result" ] ; then
|
||||||
echo "$a $result $b, but got $output"
|
echo "$a $result $b, but got $output"
|
||||||
|
@ -9,5 +9,9 @@ while read a result b rest ; do
|
||||||
fi
|
fi
|
||||||
done
|
done
|
||||||
|
|
||||||
|
if [ "$fail" == "0" ]; then
|
||||||
|
echo "OK: version checking works"
|
||||||
|
fi
|
||||||
|
|
||||||
exit $fail
|
exit $fail
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue