* Add ipkg for future development

git-svn-id: http://opkg.googlecode.com/svn/trunk@3 e8e0d7a0-c8d9-11dd-a880-a1081c7ac358

1 files changed, 232 insertions, 0 deletions

diff --git a/pkg.h b/pkg.h
new file mode 100644
index 0000000..affed53
--- /dev/null
+++ b/pkg.h
@@ -0,0 +1,232 @@
+/* pkg.h - the itsy package management system
+
+   Carl D. Worth
+
+   Copyright (C) 2001 University of Southern California
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+*/
+
+#ifndef PKG_H
+#define PKG_H
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "pkg_vec.h"
+#include "str_list.h"
+#include "pkg_src.h"
+#include "pkg_dest.h"
+#include "ipkg_conf.h"
+#include "conffile_list.h"
+
+struct ipkg_conf;
+
+
+#define ARRAY_SIZE(array) sizeof(array) / sizeof((array)[0])
+
+/* I think "Size" is currently the shortest field name */
+#define PKG_MINIMUM_FIELD_NAME_LEN 4
+
+enum pkg_state_want
+{
+    SW_UNKNOWN = 1,
+    SW_INSTALL,
+    SW_DEINSTALL,
+    SW_PURGE,
+    SW_LAST_STATE_WANT
+};
+typedef enum pkg_state_want pkg_state_want_t;
+
+enum pkg_state_flag
+{
+    SF_OK        = 0,
+    SF_REINSTREQ = 1,
+    SF_HOLD      = 2,  /* do not upgrade version */
+    SF_REPLACE   = 4,  /* replace this package */
+    SF_NOPRUNE   = 8,  /* do not remove obsolete files */
+    SF_PREFER    = 16, /* prefer this version */
+    SF_OBSOLETE  = 32, /* old package in upgrade pair */
+    SF_MARKED    = 64, /* temporary mark */
+    SF_FILELIST_CHANGED = 128, /* needs filelist written */
+    SF_USER      = 256,
+    SF_LAST_STATE_FLAG
+};
+typedef enum pkg_state_flag pkg_state_flag_t;
+#define SF_NONVOLATILE_FLAGS (SF_HOLD|SF_NOPRUNE|SF_PREFER|SF_OBSOLETE|SF_USER)
+
+enum pkg_state_status
+{
+    SS_NOT_INSTALLED = 1,
+    SS_UNPACKED,
+    SS_HALF_CONFIGURED,
+    SS_INSTALLED,
+    SS_HALF_INSTALLED,
+    SS_CONFIG_FILES,
+    SS_POST_INST_FAILED,
+    SS_REMOVAL_FAILED,
+    SS_LAST_STATE_STATUS
+};
+typedef enum pkg_state_status pkg_state_status_t;
+
+struct abstract_pkg{
+    char * name;
+    int dependencies_checked;
+    pkg_vec_t * pkgs;
+    pkg_state_status_t state_status;
+    pkg_state_flag_t state_flag;
+    struct abstract_pkg ** depended_upon_by; /* @@@@ this should be abstract_pkg_vec_t -Jamey */
+    abstract_pkg_vec_t * provided_by;
+    abstract_pkg_vec_t * replaced_by;
+};
+
+#include "pkg_depends.h"
+
+/* XXX: CLEANUP: I'd like to clean up pkg_t in several ways:
+
+   The 3 version fields should go into a single version struct. (This
+   is especially important since, currently, pkg->version can easily
+   be mistaken for pkg_verson_str_alloc(pkg) although they are very
+   distinct. This has been the source of multiple bugs.
+
+   The 3 state fields could possibly also go into their own struct.
+
+   All fields which deal with lists of packages, (Depends,
+   Pre-Depends, Provides, Suggests, Recommends, Enhances), should each
+   be handled by a single struct in pkg_t
+
+   All string fields for which there is a small set of possible
+   values, (section, maintainer, architecture, maybe version?), that
+   are reused among different packages -- for all such packages we
+   should move from "char *"s to some atom datatype to share data
+   storage and use less memory. We might even do reference counting,
+   but probably not since most often we only create new pkg_t structs,
+   we don't often free them.  */
+struct pkg
+{
+     char *name;
+     unsigned long epoch;
+     char *version;
+     char *revision;
+     char *familiar_revision;
+     pkg_src_t *src;
+     pkg_dest_t *dest;
+     char *architecture;
+     char *section;
+     char *maintainer;
+     char *description;
+     pkg_state_want_t state_want;
+     pkg_state_flag_t state_flag;
+     pkg_state_status_t state_status;
+     char **depends_str;
+     int depends_count;
+     char **pre_depends_str;
+     int pre_depends_count;
+     char **recommends_str;
+     int recommends_count;
+     char **suggests_str;
+     int suggests_count;
+     compound_depend_t * depends;
+
+     /* Abhaya: new conflicts */
+     char **conflicts_str;
+     compound_depend_t * conflicts;
+     int conflicts_count;
+	
+     char **replaces_str;
+     int replaces_count;
+     abstract_pkg_t ** replaces;
+
+     char **provides_str;
+     int provides_count;
+     abstract_pkg_t ** provides;
+
+     abstract_pkg_t *parent;
+
+     pkg_t *old_pkg; /* during upgrade, points from installee to previously installed */
+
+     char *filename;
+     char *local_filename;
+     char *url;
+     char *tmp_unpack_dir;
+     char *md5sum;
+     char *size;
+     char *installed_size;
+     char *priority;
+     char *source;
+     conffile_list_t conffiles;
+     time_t installed_time;
+     /* As pointer for lazy evaluation */
+     str_list_t *installed_files;
+     /* XXX: CLEANUP: I'd like to perhaps come up with a better
+	mechanism to avoid the problem here, (which is that the
+	installed_files list was being freed from an inner loop while
+	still being used within an outer loop. */
+     int installed_files_ref_cnt;
+     int essential;
+     int arch_priority;
+/* Adding this flag, to "force" ipkg to choose a "provided_by_hand" package, if there are multiple choice */
+     int provided_by_hand;
+};
+
+pkg_t *pkg_new(void);
+int pkg_init(pkg_t *pkg);
+void pkg_deinit(pkg_t *pkg);
+int pkg_init_from_file(pkg_t *pkg, const char *filename);
+abstract_pkg_t *abstract_pkg_new(void);
+int abstract_pkg_init(abstract_pkg_t *ab_pkg);
+
+/* 
+ * merges fields from newpkg into oldpkg.
+ * Forcibly sets oldpkg state_status, state_want and state_flags if set_status is nonzero 
+ */
+int pkg_merge(pkg_t *oldpkg, pkg_t *newpkg, int set_status);
+
+char *pkg_version_str_alloc(pkg_t *pkg);
+
+int pkg_compare_versions(const pkg_t *pkg, const pkg_t *ref_pkg);
+int pkg_name_version_and_architecture_compare(void *a, void *b);
+int abstract_pkg_name_compare(void *a, void *b);
+
+char * pkg_formatted_info(pkg_t *pkg );
+char * pkg_formatted_field(pkg_t *pkg, const char *field );
+
+void set_flags_from_control(ipkg_conf_t *conf, pkg_t *pkg);
+
+void pkg_print_info(pkg_t *pkg, FILE *file);
+void pkg_print_status(pkg_t * pkg, FILE * file);
+void pkg_print_field(pkg_t *pkg, FILE *file, const char *field);
+str_list_t *pkg_get_installed_files(pkg_t *pkg);
+int pkg_free_installed_files(pkg_t *pkg);
+int pkg_remove_installed_files_list(ipkg_conf_t *conf, pkg_t *pkg);
+conffile_t *pkg_get_conffile(pkg_t *pkg, const char *file_name);
+int pkg_run_script(struct ipkg_conf *conf, pkg_t *pkg,
+		   const char *script, const char *args);
+
+/* enum mappings */
+char *pkg_state_want_to_str(pkg_state_want_t sw);
+pkg_state_want_t pkg_state_want_from_str(char *str);
+char *pkg_state_flag_to_str(pkg_state_flag_t sf);
+pkg_state_flag_t pkg_state_flag_from_str(char *str);
+char *pkg_state_status_to_str(pkg_state_status_t ss);
+pkg_state_status_t pkg_state_status_from_str(char *str);
+
+int pkg_version_satisfied(pkg_t *it, pkg_t *ref, const char *op);
+
+int pkg_arch_supported(ipkg_conf_t *conf, pkg_t *pkg);
+int pkg_info_preinstall_check(ipkg_conf_t *conf);
+int pkg_free_installed_files(pkg_t *pkg);
+
+int pkg_write_filelist(ipkg_conf_t *conf, pkg_t *pkg);
+int pkg_write_changed_filelists(ipkg_conf_t *conf);
+
+#endif