1 /* 2 * Copyright (c) 1992, Brian Berliner and Jeff Polk 3 * Copyright (c) 1989-1992, Brian Berliner 4 * 5 * You may distribute under the terms of the GNU General Public License as 6 * specified in the README file that comes with the CVS source distribution. 7 * 8 * RCS source control definitions needed by rcs.c and friends 9 */ 10 11 /* Strings which indicate a conflict if they occur at the start of a line. */ 12 #define RCS_MERGE_PAT_1 "<<<<<<< " 13 #define RCS_MERGE_PAT_2 "=======\n" 14 #define RCS_MERGE_PAT_3 ">>>>>>> " 15 16 #define RCSEXT ",v" 17 #define RCSPAT "*,v" 18 #define RCSHEAD "head" 19 #define RCSBRANCH "branch" 20 #define RCSSYMBOLS "symbols" 21 #define RCSDATE "date" 22 #define RCSDESC "desc" 23 #define RCSEXPAND "expand" 24 25 /* Used by the version of death support which resulted from old 26 versions of CVS (e.g. 1.5 if you define DEATH_SUPPORT and not 27 DEATH_STATE). Only a hacked up RCS (used by those old versions of 28 CVS) will put this into RCS files. Considered obsolete. */ 29 #define RCSDEAD "dead" 30 31 #define DATEFORM "%02d.%02d.%02d.%02d.%02d.%02d" 32 #define SDATEFORM "%d.%d.%d.%d.%d.%d" 33 34 /* 35 * Opaque structure definitions used by RCS specific lookup routines 36 */ 37 #define VALID 0x1 /* flags field contains valid data */ 38 #define INATTIC 0x2 /* RCS file is located in the Attic */ 39 #define PARTIAL 0x4 /* RCS file not completly parsed */ 40 41 /* All the "char *" fields in RCSNode, Deltatext, and RCSVers are 42 '\0'-terminated (except "text" in Deltatext). This means that we 43 can't deal with fields containing '\0', which is a limitation that 44 RCS does not have. Would be nice to fix this some day. */ 45 46 struct rcsnode 47 { 48 /* Reference count for this structure. Used to deal with the 49 fact that there might be a pointer from the Vers_TS or might 50 not. Callers who increment this field are responsible for 51 calling freercsnode when they are done with their reference. */ 52 int refcount; 53 54 /* Flags (INATTIC, PARTIAL, &c), see above. */ 55 int flags; 56 57 /* File name of the RCS file. This is not necessarily the name 58 as specified by the user, but it is a name which can be passed to 59 system calls and a name which is OK to print in error messages 60 (the various names might differ in case). */ 61 char *path; 62 63 /* Value for head keyword from RCS header, or NULL if empty. */ 64 char *head; 65 66 /* Value for branch keyword from RCS header, or NULL if omitted. */ 67 char *branch; 68 69 /* Raw data on symbolic revisions. The first time that RCS_symbols is 70 called, we parse these into ->symbols, and free ->symbols_data. */ 71 char *symbols_data; 72 73 /* Value for expand keyword from RCS header, or NULL if omitted. */ 74 char *expand; 75 76 /* List of nodes, the key of which is the symbolic name and the data 77 of which is the numeric revision that it corresponds to (malloc'd). */ 78 List *symbols; 79 80 /* List of nodes (type RCSVERS), the key of which the numeric revision 81 number, and the data of which is an RCSVers * for the revision. */ 82 List *versions; 83 84 /* Value for access keyword from RCS header, or NULL if empty. 85 FIXME: RCS_delaccess would also seem to use "" for empty. We 86 should pick one or the other. */ 87 char *access; 88 89 /* Raw data on locked revisions. The first time that RCS_getlocks is 90 called, we parse these into ->locks, and free ->locks_data. */ 91 char *locks_data; 92 93 /* List of nodes, the key of which is the numeric revision and the 94 data of which is the user that it corresponds to (malloc'd). */ 95 List *locks; 96 97 /* Set for the strict keyword from the RCS header. */ 98 int strict_locks; 99 100 /* Value for the comment keyword from RCS header (comment leader), or 101 NULL if omitted. */ 102 char *comment; 103 104 /* Value for the desc field in the RCS file, or NULL if empty. */ 105 char *desc; 106 107 /* File offset of the first deltatext node, so we can seek there. */ 108 long delta_pos; 109 110 /* Newphrases from the RCS header. List of nodes, the key of which 111 is the "id" which introduces the newphrase, and the value of which 112 is the value from the newphrase. */ 113 List *other; 114 }; 115 116 typedef struct rcsnode RCSNode; 117 118 struct deltatext { 119 char *version; 120 121 /* Log message, or NULL if we do not intend to change the log message 122 (that is, RCS_copydeltas should just use the log message from the 123 file). */ 124 char *log; 125 126 /* Change text, or NULL if we do not intend to change the change text 127 (that is, RCS_copydeltas should just use the change text from the 128 file). Note that it is perfectly legal to have log be NULL and 129 text non-NULL, or vice-versa. */ 130 char *text; 131 size_t len; 132 133 /* Newphrase fields from deltatext nodes. FIXME: duplicates the 134 other field in the rcsversnode, I think. */ 135 List *other; 136 }; 137 typedef struct deltatext Deltatext; 138 139 struct rcsversnode 140 { 141 /* Duplicate of the key by which this structure is indexed. */ 142 char *version; 143 144 char *date; 145 char *author; 146 char *state; 147 char *next; 148 int dead; 149 int outdated; 150 Deltatext *text; 151 List *branches; 152 /* Newphrase fields from deltatext nodes. Also contains ";add" and 153 ";delete" magic fields (see rcs.c, log.c). I think this is 154 only used by log.c (where it looks up "log"). Duplicates the 155 other field in struct deltatext, I think. */ 156 List *other; 157 /* Newphrase fields from delta nodes. */ 158 List *other_delta; 159 #ifdef PRESERVE_PERMISSIONS_SUPPORT 160 /* Hard link information for each revision. */ 161 List *hardlinks; 162 #endif 163 }; 164 typedef struct rcsversnode RCSVers; 165 166 /* 167 * CVS reserves all even-numbered branches for its own use. "magic" branches 168 * (see rcs.c) are contained as virtual revision numbers (within symbolic 169 * tags only) off the RCS_MAGIC_BRANCH, which is 0. CVS also reserves the 170 * ".1" branch for vendor revisions. So, if you do your own branching, you 171 * should limit your use to odd branch numbers starting at 3. 172 */ 173 #define RCS_MAGIC_BRANCH 0 174 175 /* The type of a function passed to RCS_checkout. */ 176 typedef void (*RCSCHECKOUTPROC) PROTO ((void *, const char *, size_t)); 177 178 #ifdef __STDC__ 179 struct rcsbuffer; 180 #endif 181 182 /* 183 * exported interfaces 184 */ 185 RCSNode *RCS_parse PROTO((const char *file, const char *repos)); 186 RCSNode *RCS_parsercsfile PROTO((char *rcsfile)); 187 void RCS_fully_parse PROTO((RCSNode *)); 188 void RCS_reparsercsfile PROTO((RCSNode *, FILE **, struct rcsbuffer *)); 189 extern int RCS_setattic PROTO ((RCSNode *, int)); 190 191 char *RCS_check_kflag PROTO((const char *arg)); 192 char *RCS_getdate PROTO((RCSNode * rcs, char *date, int force_tag_match)); 193 char *RCS_gettag PROTO((RCSNode * rcs, char *symtag, int force_tag_match, 194 int *simple_tag)); 195 int RCS_exist_rev PROTO((RCSNode *rcs, char *rev)); 196 int RCS_exist_tag PROTO((RCSNode *rcs, char *tag)); 197 char *RCS_tag2rev PROTO((RCSNode *rcs, char *tag)); 198 char *RCS_getversion PROTO((RCSNode * rcs, char *tag, char *date, 199 int force_tag_match, int *simple_tag)); 200 char *RCS_magicrev PROTO((RCSNode *rcs, char *rev)); 201 int RCS_isbranch PROTO((RCSNode *rcs, const char *rev)); 202 int RCS_nodeisbranch PROTO((RCSNode *rcs, const char *tag)); 203 char *RCS_whatbranch PROTO((RCSNode *rcs, const char *tag)); 204 char *RCS_head PROTO((RCSNode * rcs)); 205 int RCS_datecmp PROTO((char *date1, char *date2)); 206 time_t RCS_getrevtime PROTO((RCSNode * rcs, char *rev, char *date, int fudge)); 207 List *RCS_symbols PROTO((RCSNode *rcs)); 208 void RCS_check_tag PROTO((const char *tag)); 209 int RCS_valid_rev PROTO ((char *rev)); 210 List *RCS_getlocks PROTO((RCSNode *rcs)); 211 void freercsnode PROTO((RCSNode ** rnodep)); 212 char *RCS_getbranch PROTO((RCSNode * rcs, char *tag, int force_tag_match)); 213 char *RCS_branch_head PROTO ((RCSNode *rcs, char *rev)); 214 215 int RCS_isdead PROTO((RCSNode *, const char *)); 216 char *RCS_getexpand PROTO ((RCSNode *)); 217 void RCS_setexpand PROTO ((RCSNode *, char *)); 218 int RCS_checkout PROTO ((RCSNode *, char *, char *, char *, char *, char *, 219 RCSCHECKOUTPROC, void *)); 220 int RCS_checkin PROTO ((RCSNode *rcs, char *workfile, char *message, 221 char *rev, int flags)); 222 int RCS_cmp_file PROTO ((RCSNode *, char *, char *, const char *)); 223 int RCS_settag PROTO ((RCSNode *, const char *, const char *)); 224 int RCS_deltag PROTO ((RCSNode *, const char *)); 225 int RCS_setbranch PROTO((RCSNode *, const char *)); 226 int RCS_lock PROTO ((RCSNode *, const char *, int)); 227 int RCS_unlock PROTO ((RCSNode *, const char *, int)); 228 int RCS_delete_revs PROTO ((RCSNode *, char *, char *, int)); 229 void RCS_addaccess PROTO ((RCSNode *, char *)); 230 void RCS_delaccess PROTO ((RCSNode *, char *)); 231 char *RCS_getaccess PROTO ((RCSNode *)); 232 RETSIGTYPE rcs_cleanup PROTO ((void)); 233 void RCS_rewrite PROTO ((RCSNode *, Deltatext *, char *)); 234 void RCS_abandon PROTO ((RCSNode *)); 235 int rcs_change_text PROTO ((const char *, char *, size_t, const char *, 236 size_t, char **, size_t *)); 237 char *make_file_label PROTO ((char *, char *, RCSNode *)); 238 239 extern int preserve_perms; 240 241 /* From import.c. */ 242 extern int add_rcs_file PROTO ((char *, char *, char *, char *, char *, 243 char *, char *, int, char **, 244 char *, size_t, FILE *)); 245