00001 /** 00002 * @copyright 00003 * ==================================================================== 00004 * Copyright (c) 2000-2004 CollabNet. All rights reserved. 00005 * 00006 * This software is licensed as described in the file COPYING, which 00007 * you should have received as part of this distribution. The terms 00008 * are also available at http://subversion.tigris.org/license-1.html. 00009 * If newer versions of this license are posted there, you may use a 00010 * newer version instead, at your option. 00011 * 00012 * This software consists of voluntary contributions made by many 00013 * individuals. For exact contribution history, see the revision 00014 * history and logs, available at http://subversion.tigris.org/. 00015 * ==================================================================== 00016 * @endcopyright 00017 * 00018 * @file svn_props.h 00019 * @brief Subversion properties 00020 */ 00021 00022 /* ==================================================================== */ 00023 00024 #ifndef SVN_PROPS_H 00025 #define SVN_PROPS_H 00026 00027 #include <apr_pools.h> 00028 #include <apr_tables.h> 00029 00030 #include "svn_string.h" 00031 00032 #ifdef __cplusplus 00033 extern "C" { 00034 #endif /* __cplusplus */ 00035 00036 00037 00038 00039 /** A general in-memory representation of a single property. Most of 00040 * the time, property lists will be stored completely in hashes. But 00041 * sometimes it's useful to have an "ordered" collection of 00042 * properties, in which case we use an apr_array of the type below. 00043 * 00044 * Also: sometimes we want a list that represents a set of property 00045 * *changes*, and in this case, an @c apr_hash_t won't work -- there's no 00046 * way to represent a property deletion, because we can't store a @c NULL 00047 * value in a hash. So instead, we use these structures. 00048 */ 00049 typedef struct svn_prop_t 00050 { 00051 const char *name; 00052 const svn_string_t *value; 00053 } svn_prop_t; 00054 00055 00056 /** 00057 * Subversion distinguishes among several kinds of properties, 00058 * particularly on the client-side. There is no "unknown" kind; if 00059 * there's nothing special about a property name, the default category 00060 * is @c svn_prop_regular_kind. 00061 */ 00062 typedef enum svn_prop_kind 00063 { 00064 /** In .svn/entries, i.e., author, date, etc. */ 00065 svn_prop_entry_kind, 00066 00067 /** Client-side only, stored by specific RA layer. */ 00068 svn_prop_wc_kind, 00069 00070 /** Seen if user does "svn proplist"; note that this includes some "svn:" 00071 * props and all user props, i.e. ones stored in the repository fs. 00072 */ 00073 svn_prop_regular_kind 00074 } svn_prop_kind_t; 00075 00076 /** Return the prop kind of a property named @a name, and (if @a prefix_len 00077 * is non-@c NULL) set @a *prefix_len to the length of the prefix of @a name 00078 * that was sufficient to distinguish its kind. 00079 */ 00080 svn_prop_kind_t svn_property_kind (int *prefix_len, 00081 const char *prop_name); 00082 00083 00084 /** Return @c TRUE iff @a prop_name represents the name of a Subversion 00085 * property. 00086 */ 00087 svn_boolean_t svn_prop_is_svn_prop (const char *prop_name); 00088 00089 00090 /** If @a propname requires that its value be stored as UTF8/LF in the 00091 * repository, then return @c TRUE. Else return @c FALSE. This is for 00092 * users of libsvn_client or libsvn_fs, since it their responsibility 00093 * to do this translation in both directions. (See 00094 * @c svn_subst_translate_string/@c svn_subst_detranslate_string for 00095 * help with this task.) 00096 */ 00097 svn_boolean_t svn_prop_needs_translation (const char *propname); 00098 00099 00100 /** Given an @a proplist array of @c svn_prop_t structures, allocate 00101 * three new arrays in @a pool. Categorize each property and then 00102 * create new @c svn_prop_t structures in the proper lists. Each new 00103 * @c svn_prop_t structure's fields will point to the same data within 00104 * @a proplist's structures. 00105 * 00106 * Callers may pass NULL for each of the property lists in which they 00107 * are uninterested. If no props exist in a certain category, and the 00108 * property list argment for that category is non-NULL, then that 00109 * array will come back with <tt>->nelts == 0</tt>. 00110 * 00111 * ### Hmmm, maybe a better future interface is to return an array of 00112 * arrays, where the index into the array represents the index 00113 * into @c svn_prop_kind_t. That way we can add more prop kinds 00114 * in the future without changing this interface... 00115 */ 00116 svn_error_t *svn_categorize_props (const apr_array_header_t *proplist, 00117 apr_array_header_t **entry_props, 00118 apr_array_header_t **wc_props, 00119 apr_array_header_t **regular_props, 00120 apr_pool_t *pool); 00121 00122 00123 /** Given two property hashes (<tt>const char *name</tt> -> <tt>const 00124 * svn_string_t *value</tt>), deduce the differences between them (from 00125 * @a source_props -> @c target_props). Return these changes as a series of 00126 * @c svn_prop_t structures stored in @a propdiffs, allocated from @a pool. 00127 * 00128 * For note, here's a quick little table describing the logic of this 00129 * routine: 00130 * 00131 *<pre> basehash localhash event 00132 * -------- --------- ----- 00133 * value = foo value = NULL Deletion occurred. 00134 * value = foo value = bar Set occurred (modification) 00135 * value = NULL value = baz Set occurred (creation)</pre> 00136 */ 00137 svn_error_t *svn_prop_diffs (apr_array_header_t **propdiffs, 00138 apr_hash_t *target_props, 00139 apr_hash_t *source_props, 00140 apr_pool_t *pool); 00141 00142 00143 00144 /* Defines for reserved ("svn:") property names. */ 00145 00146 /** All Subversion property names start with this. */ 00147 #define SVN_PROP_PREFIX "svn:" 00148 00149 00150 /** Visible properties 00151 * 00152 * These are regular properties that are attached to ordinary files 00153 * and dirs, and are visible (and tweakable) by svn client programs 00154 * and users. Adding these properties causes specific effects. 00155 * 00156 * NOTE: the values of these properties are always UTF8-encoded with 00157 * LF line-endings. It is the burden of svn library users to enforce 00158 * this. Use @c svn_prop_needs_translation() above to discover if a 00159 * certain property needs translation, and you can use 00160 * @c svn_subst_translate_string()/@c svn_subst_[de]translate_string() 00161 * to do the translation. 00162 * 00163 * @defgroup svn_prop_visible_props Visible properties 00164 * @{ 00165 */ 00166 00167 /** The mime-type of a given file. */ 00168 #define SVN_PROP_MIME_TYPE SVN_PROP_PREFIX "mime-type" 00169 00170 /** The ignore patterns for a given directory. */ 00171 #define SVN_PROP_IGNORE SVN_PROP_PREFIX "ignore" 00172 00173 /** The line ending style for a given file. */ 00174 #define SVN_PROP_EOL_STYLE SVN_PROP_PREFIX "eol-style" 00175 00176 /** The "activated" keywords (for keyword substitution) for a given file. */ 00177 #define SVN_PROP_KEYWORDS SVN_PROP_PREFIX "keywords" 00178 00179 /** Set to either TRUE or FALSE if we want a file to be executable or not. */ 00180 #define SVN_PROP_EXECUTABLE SVN_PROP_PREFIX "executable" 00181 00182 /** The value to force the executable property to when set */ 00183 #define SVN_PROP_EXECUTABLE_VALUE "*" 00184 00185 /** Describes external items to check out into this directory. 00186 * 00187 * The format is a series of lines, such as: 00188 * 00189 *<pre> localdir1 http://url.for.external.source/etc/ 00190 * localdir1/foo http://url.for.external.source/foo 00191 * localdir1/bar http://blah.blah.blah/repositories/theirproj 00192 * localdir1/bar/baz http://blorg.blorg.blorg/basement/code 00193 * localdir2 http://another.url/blah/blah/blah 00194 * localdir3 http://and.so.on/and/so/forth</pre> 00195 * 00196 * The subdir names on the left side are relative to the directory on 00197 * which this property is set. 00198 */ 00199 #define SVN_PROP_EXTERNALS SVN_PROP_PREFIX "externals" 00200 00201 /** @} */ 00202 00203 /** WC props are props that are invisible to users: they're generated 00204 * by an RA layer, and stored in secret parts of .svn/. 00205 * 00206 * @defgroup svn_prop_invisible_props Invisible properties 00207 * @{ 00208 */ 00209 00210 /** The propname *prefix* that makes a propname a "WC property". 00211 * 00212 * For example, ra_dav might store a versioned-resource url as a WC 00213 * prop like this: 00214 * 00215 *<pre> name = svn:wc:dav_url 00216 * val = http://www.lyra.org/repos/452348/e.289</pre> 00217 * 00218 * The client will try to protect WC props by warning users against 00219 * changing them. The client will also send them back to the RA layer 00220 * when committing. 00221 */ 00222 #define SVN_PROP_WC_PREFIX SVN_PROP_PREFIX "wc:" 00223 00224 /** Another type of non-user-visible property. "Entry properties" are 00225 * stored as fields with the administrative 'entries' file. 00226 */ 00227 #define SVN_PROP_ENTRY_PREFIX SVN_PROP_PREFIX "entry:" 00228 00229 /** The revision this entry was last committed to on. */ 00230 #define SVN_PROP_ENTRY_COMMITTED_REV SVN_PROP_ENTRY_PREFIX "committed-rev" 00231 00232 /** The date this entry was last committed to on. */ 00233 #define SVN_PROP_ENTRY_COMMITTED_DATE SVN_PROP_ENTRY_PREFIX "committed-date" 00234 00235 /** The author who last committed to this entry. */ 00236 #define SVN_PROP_ENTRY_LAST_AUTHOR SVN_PROP_ENTRY_PREFIX "last-author" 00237 00238 /** The UUID of this entry's repository. */ 00239 #define SVN_PROP_ENTRY_UUID SVN_PROP_ENTRY_PREFIX "uuid" 00240 00241 /** When custom, user-defined properties are passed over the wire, they will 00242 * have this prefix added to their name. 00243 */ 00244 #define SVN_PROP_CUSTOM_PREFIX SVN_PROP_PREFIX "custom:" 00245 00246 /** @} */ 00247 00248 /** 00249 * These are reserved properties attached to a "revision" object in 00250 * the repository filesystem. They can be queried by using 00251 * @c svn_fs_revision_prop(). They are invisible to svn clients. 00252 * 00253 * @defgroup svn_props_revision_props Revision properties 00254 * @{ 00255 */ 00256 00257 /** The fs revision property that stores a commit's author. */ 00258 #define SVN_PROP_REVISION_AUTHOR SVN_PROP_PREFIX "author" 00259 00260 /** The fs revision property that stores a commit's log message. */ 00261 #define SVN_PROP_REVISION_LOG SVN_PROP_PREFIX "log" 00262 00263 /** The fs revision property that stores a commit's date. */ 00264 #define SVN_PROP_REVISION_DATE SVN_PROP_PREFIX "date" 00265 00266 /** The fs revision property that stores a commit's "original" date. 00267 * 00268 * The svn:date property must be monotonically increasing, along with 00269 * the revision number. In certain scenarios, this may pose a problem 00270 * when the revision represents a commit that occurred at a time which 00271 * does not fit within the sequencing required for svn:date. This can 00272 * happen, for instance, when the revision represents a commit to a 00273 * foreign version control system, or possibly when two Subversion 00274 * repositories are combined. This property can be used to record the 00275 * true, original date of the commit. 00276 */ 00277 #define SVN_PROP_REVISION_ORIG_DATE SVN_PROP_PREFIX "original-date" 00278 00279 /* 00280 * This is a list of all revision properties. 00281 */ 00282 #define SVN_PROP_REVISION_ALL_PROPS SVN_PROP_REVISION_AUTHOR, \ 00283 SVN_PROP_REVISION_LOG, \ 00284 SVN_PROP_REVISION_DATE, \ 00285 SVN_PROP_REVISION_ORIG_DATE, 00286 00287 /** @} */ 00288 00289 00290 00291 #ifdef __cplusplus 00292 } 00293 #endif /* __cplusplus */ 00294 00295 #endif /* SVN_PROPS_H */