razor.h
author Dan Winship <danw@gnome.org>
Tue Mar 04 10:55:01 2008 -0500 (2008-03-04)
changeset 143 59a9513fac54
parent 140 017f92f7039a
child 145 097f7b60b97a
permissions -rw-r--r--
Fix version handling (particularly wrt epoch) on import
     1 #ifndef _RAZOR_H_
     2 #define _RAZOR_H_
     3 
     4 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
     5 
     6 struct razor_set;
     7 struct razor_package;
     8 struct razor_property;
     9 
    10 enum razor_property_type {
    11 	RAZOR_PROPERTY_REQUIRES,
    12 	RAZOR_PROPERTY_PROVIDES,
    13 	RAZOR_PROPERTY_CONFLICTS,
    14 	RAZOR_PROPERTY_OBSOLETES
    15 };
    16 
    17 enum razor_version_relation {
    18 	RAZOR_VERSION_LESS,
    19 	RAZOR_VERSION_LESS_OR_EQUAL,
    20 	RAZOR_VERSION_EQUAL,
    21 	RAZOR_VERSION_GREATER_OR_EQUAL,
    22 	RAZOR_VERSION_GREATER
    23 };
    24 extern const char * const razor_version_relations[];
    25 
    26 struct razor_set *razor_set_create(void);
    27 struct razor_set *razor_set_open(const char *filename);
    28 void razor_set_destroy(struct razor_set *set);
    29 int razor_set_write(struct razor_set *set, const char *filename);
    30 
    31 struct razor_package *
    32 razor_set_get_package(struct razor_set *set, const char *package);
    33 
    34 struct razor_package_iterator;
    35 struct razor_package_iterator *
    36 razor_package_iterator_create(struct razor_set *set);
    37 struct razor_package_iterator *
    38 razor_package_iterator_create_for_property(struct razor_set *set,
    39 					   struct razor_property *property);
    40 struct razor_package_iterator *
    41 razor_package_iterator_create_for_file(struct razor_set *set,
    42 				       const char *filename);
    43 
    44 int razor_package_iterator_next(struct razor_package_iterator *pi,
    45 				struct razor_package **package,
    46 				const char **name, const char **version);
    47 void razor_package_iterator_destroy(struct razor_package_iterator *pi);
    48 
    49 struct razor_property_iterator;
    50 struct razor_property_iterator *
    51 razor_property_iterator_create(struct razor_set *set,
    52 			       struct razor_package *package);
    53 int razor_property_iterator_next(struct razor_property_iterator *pi,
    54 				 struct razor_property **property,
    55 				 const char **name,
    56 				 enum razor_version_relation *relation,
    57 				 const char **version,
    58 				 enum razor_property_type *type);
    59 void
    60 razor_property_iterator_destroy(struct razor_property_iterator *pi);
    61 
    62 void razor_set_list_files(struct razor_set *set, const char *prefix);
    63 void razor_set_list_package_files(struct razor_set *set, const char *name);
    64 
    65 void razor_set_list_unsatisfied(struct razor_set *set);
    66 
    67 typedef void (*razor_package_callback_t)(const char *name,
    68 					 const char *old_version,
    69 					 const char *new_version,
    70 					 void *data);
    71 void
    72 razor_set_diff(struct razor_set *set, struct razor_set *upstream,
    73 	       razor_package_callback_t callback, void *data);
    74 
    75 /* Package transactions */
    76 
    77 enum razor_transaction_package_state {
    78 	/* Basic states */
    79 	RAZOR_PACKAGE_INSTALL       = 0x01,
    80 	RAZOR_PACKAGE_REMOVE        = 0x02,
    81 
    82 	/* (Flags used to define the error states) */
    83 	RAZOR_PACKAGE_UNAVAILABLE   = 0x04,
    84 	RAZOR_PACKAGE_UNSATISFIABLE = 0x08,
    85 	RAZOR_PACKAGE_BLOCKED       = 0x10,
    86 	RAZOR_PACKAGE_CONFLICT      = 0x20,
    87 
    88 	/* Error states */
    89 	RAZOR_PACKAGE_INSTALL_UNAVAILABLE   = RAZOR_PACKAGE_INSTALL | RAZOR_PACKAGE_UNAVAILABLE,
    90 	RAZOR_PACKAGE_INSTALL_UNSATISFIABLE = RAZOR_PACKAGE_INSTALL | RAZOR_PACKAGE_UNSATISFIABLE,
    91 	RAZOR_PACKAGE_INSTALL_CONFLICT = RAZOR_PACKAGE_INSTALL | RAZOR_PACKAGE_CONFLICT,
    92 	RAZOR_PACKAGE_REMOVE_NOT_INSTALLED  = RAZOR_PACKAGE_REMOVE | RAZOR_PACKAGE_UNAVAILABLE,
    93 	RAZOR_PACKAGE_REMOVE_BLOCKED  = RAZOR_PACKAGE_REMOVE | RAZOR_PACKAGE_BLOCKED,
    94 	RAZOR_PACKAGE_REMOVE_CONFLICT  = RAZOR_PACKAGE_REMOVE | RAZOR_PACKAGE_CONFLICT
    95 };
    96 
    97 struct razor_transaction_package {
    98 	struct razor_package *package;
    99 	const char *name, *version;
   100 	enum razor_transaction_package_state state;
   101 
   102 	const char *req_package;
   103 	enum razor_property_type req_type;
   104 	const char *req_property;
   105 	enum razor_version_relation req_relation;
   106 	const char *req_version;
   107 };
   108 
   109 struct razor_transaction {
   110 	int package_count, errors;
   111 	struct razor_transaction_package *packages;
   112 
   113 	struct razor_set *system, *upstream;
   114 };
   115 
   116 struct razor_transaction *
   117 razor_transaction_create(struct razor_set *system, struct razor_set *upstream,
   118 			 int update_count, const char **update_packages,
   119 			 int remove_count, const char **remove_packages);
   120 void razor_transaction_describe(struct razor_transaction *trans);
   121 struct razor_set *razor_transaction_run(struct razor_transaction *trans);
   122 void razor_transaction_destroy(struct razor_transaction *trans);
   123 
   124 /* Importer interface; for building a razor set from external sources,
   125  * like yum, rpmdb or razor package files. */
   126 
   127 struct razor_importer;
   128 struct razor_rpm;
   129 
   130 struct razor_importer *razor_importer_new(void);
   131 void razor_importer_destroy(struct razor_importer *importer);
   132 void razor_importer_begin_package(struct razor_importer *importer,
   133 				  const char *name, const char *version);
   134 void razor_importer_add_property(struct razor_importer *importer,
   135 				 const char *name,
   136 				 enum razor_version_relation relation,
   137 				 const char *version,
   138 				 enum razor_property_type type);
   139 void razor_importer_add_file(struct razor_importer *importer,
   140 			     const char *name);
   141 void razor_importer_finish_package(struct razor_importer *importer);
   142 
   143 int razor_importer_add_rpm(struct razor_importer *importer,
   144 			   struct razor_rpm *rpm);
   145 
   146 struct razor_set *razor_importer_finish(struct razor_importer *importer);
   147 
   148 void razor_build_evr(char *evr_buf, int size, const char *epoch,
   149 		     const char *version, const char *release);
   150 
   151 struct razor_set *razor_set_create_from_yum(void);
   152 struct razor_set *razor_set_create_from_rpmdb(void);
   153 
   154 /* RPM functions */
   155 
   156 struct razor_rpm *razor_rpm_open(const char *filename);
   157 int razor_rpm_install(struct razor_rpm *rpm, const char *root);
   158 int razor_rpm_close(struct razor_rpm *rpm);
   159 
   160 #endif /* _RAZOR_H_ */