| 1 | /* ************************************************************************ *\␊ |
| 2 | * *␊ |
| 3 | * File: md.c *␊ |
| 4 | * *␊ |
| 5 | * Updates makefiles from the .n dependency files generated by the *␊ |
| 6 | * -MD option to "cc" (and "cpp"). *␊ |
| 7 | * *␊ |
| 8 | * Abstract: *␊ |
| 9 | * *␊ |
| 10 | * Basically, "md" does two things: *␊ |
| 11 | * 1) It processes the raw dependency files produced by the cpp -MD *␊ |
| 12 | * option. There is one line in the file for every #include *␊ |
| 13 | * encountered, but there are repeats and patterns like *␊ |
| 14 | * .../dir1/../dir2 appear which should reduce to .../dir2 *␊ |
| 15 | * Md canonicalizes and flushes repeats from the dependency *␊ |
| 16 | * list. It also sorts the file names and "fills" them to a 78 *␊ |
| 17 | * character line. *␊ |
| 18 | * 2) Md also updates the makefile directly with the dependency *␊ |
| 19 | * information, so the .d file can be thrown away (-- -d option) *␊ |
| 20 | * This is done to save space. Md assumes that dependency *␊ |
| 21 | * information in the makefile is sorted by .o file name and it *␊ |
| 22 | * procedes to merge in (add/or replace [as appropriate]) the new *␊ |
| 23 | * dependency lines that it has generated. For time effeciency, *␊ |
| 24 | * Md assumes that any .d files it is given that were created *␊ |
| 25 | * before the creation date of the "makefile" were processed *␊ |
| 26 | * already. It ignores them unless the force flag (-f) is given. *␊ |
| 27 | * *␊ |
| 28 | * Arguments: *␊ |
| 29 | * *␊ |
| 30 | * -d delete the .d file after it is processed *␊ |
| 31 | * -f force an update of the dependencies in the makefile *␊ |
| 32 | * even though the makefile is more recent than the .n file *␊ |
| 33 | * (This implies that md has been run already.) *␊ |
| 34 | * -m specify the makefile to be upgraded. The defaults are *␊ |
| 35 | * "makefile" and then "Makefile". *␊ |
| 36 | * -u like -m above, but the file will be created if necessary *␊ |
| 37 | * -o specify an output file for the dependencies other than a *␊ |
| 38 | * makefile *␊ |
| 39 | * -v set the verbose flag *␊ |
| 40 | * -x expunge old dependency info from makefile *␊ |
| 41 | * -D subswitch for debugging. can be followed by any of *␊ |
| 42 | * "c", "d", "m", "o", "t", "D" meaning: *␊ |
| 43 | * c show file contents *␊ |
| 44 | * d show new dependency crunching *␊ |
| 45 | * m show generation of makefile *␊ |
| 46 | * o show files being opened *␊ |
| 47 | * t show time comparisons *␊ |
| 48 | * D show very low level debugging *␊ |
| 49 | * *␊ |
| 50 | * Author: Robert V. Baron *␊ |
| 51 | * Copyright (c) 1986 by Robert V. Baron *␊ |
| 52 | * *␊ |
| 53 | * HISTORY *␊ |
| 54 | * 29-Apr-87 Robert Baron (rvb) at Carnegie-Mellon University␊ |
| 55 | * If specified -u file does not exist, assume it is empty and␊ |
| 56 | * generate one. As a sanity check, it must be possible to create␊ |
| 57 | * the output file.␊ |
| 58 | * Also, generalized fix below to handle any case of . as a␊ |
| 59 | * file name.␊ |
| 60 | *␊ |
| 61 | * 25-Mar-87 Mary Thompson (mrt) at Carnegie Mellon␊ |
| 62 | * Fixed up pathnamecanonicalization to recognize .// and␊ |
| 63 | * drop the second / as well. mmax cpp generates this form.␊ |
| 64 | *␊ |
| 65 | * 6-Jan-87 Robert Baron (rvb) at Carnegie-Mellon University␊ |
| 66 | * Fixed up pathname canonicalization to that ../../, etc would be␊ |
| 67 | * handled correctly.␊ |
| 68 | * Also made "force" on by default.␊ |
| 69 | *␊ |
| 70 | * 16-Mar-86 Robert Baron (rvb) at Carnegie-Mellon University␊ |
| 71 | * Created 4/16/86 *␊ |
| 72 | * *␊ |
| 73 | \* ************************************************************************ */␊ |
| 74 | ␊ |
| 75 | /* cleaned and adapted for Chameleon by cparm */␊ |
| 76 | ␊ |
| 77 | #include <sys/types.h>␊ |
| 78 | #include <sys/stat.h>␊ |
| 79 | #include <stdio.h>␊ |
| 80 | #include <stdlib.h>␊ |
| 81 | #include <string.h>␊ |
| 82 | #include <unistd.h>␊ |
| 83 | #include <fcntl.h>␊ |
| 84 | ␊ |
| 85 | #define LINESIZE 65536 // NeXT_MOD␊ |
| 86 | ␊ |
| 87 | #define OUTLINELEN 79␊ |
| 88 | #define IObuffer 50000␊ |
| 89 | #define SALUTATION "# Dependencies for File:"␊ |
| 90 | #define SALUTATIONLEN (sizeof SALUTATION - 1)␊ |
| 91 | #define OLDSALUTATION "# DO NOT DELETE THIS LINE"␊ |
| 92 | #define OLDSALUTATIONLEN (sizeof OLDSALUTATION - 1)␊ |
| 93 | ␊ |
| 94 | static char file_array[IObuffer]; /* read file and store crunched names */␊ |
| 95 | static char dep_line[LINESIZE]; /* line being processed */␊ |
| 96 | static char dot_o[LINESIZE]; /* <foo.o>: prefix */␊ |
| 97 | static char *path_component[100]; /* stores components for a path while being␊ |
| 98 | crunched */␊ |
| 99 | ␊ |
| 100 | static struct dep { /* stores paths that a file depends on */␊ |
| 101 | int len;␊ |
| 102 | char *str;␊ |
| 103 | } dep_files[1000];␊ |
| 104 | static int dep_file_index;␊ |
| 105 | ␊ |
| 106 | static int qsort_strcmp(struct dep *a, struct dep *b)␊ |
| 107 | {␊ |
| 108 | extern int strcmp();␊ |
| 109 | return strcmp(a->str, b->str);␊ |
| 110 | }␊ |
| 111 | ␊ |
| 112 | static char *outfile = (char *) 0; /* generate dependency file */␊ |
| 113 | static FILE *out;␊ |
| 114 | ␊ |
| 115 | static char *makefile = (char *) 0; /* user supplied makefile name */␊ |
| 116 | static char *real_mak_name; /* actual makefile name (if not supplied) */␊ |
| 117 | static char shadow_mak_name[LINESIZE]; /* changes done here then renamed */␊ |
| 118 | static FILE *mak; /* for reading makefile */␊ |
| 119 | static FILE *makout; /* for writing shadow */␊ |
| 120 | static char makbuf[LINESIZE]; /* one line buffer for makefile */␊ |
| 121 | static struct stat makstat; /* stat of makefile for time comparisons */␊ |
| 122 | static int mak_eof = 0; /* eof seen on makefile */␊ |
| 123 | ␊ |
| 124 | static int delete = 0; /* -d delete dependency file */␊ |
| 125 | static int debug = 0;␊ |
| 126 | static int D_contents = 0; /* print file contents */␊ |
| 127 | static int D_depend = 0; /* print dependency processing info */␊ |
| 128 | static int D_make = 0; /* print makefile processing info */␊ |
| 129 | static int D_open = 0; /* print after succesful open */␊ |
| 130 | static int D_time = 0; /* print time comparison info */␊ |
| 131 | static int force = 1; /* always update dependency info */␊ |
| 132 | static int update = 0; /* it's ok if the -m file does not exist */␊ |
| 133 | static int verbose = 0; /* tell me something */␊ |
| 134 | static int expunge = 0; /* first flush dependency stuff from makefile */␊ |
| 135 | ␊ |
| 136 | ␊ |
| 137 | static char *name;␊ |
| 138 | static int read_dep(register char *file);␊ |
| 139 | static void save_dot_o(void);␊ |
| 140 | static void parse_dep(void);␊ |
| 141 | static void output_dep(FILE *out);␊ |
| 142 | static FILE *find_mak(char *file);␊ |
| 143 | static FILE *temp_mak(void);␊ |
| 144 | static void scan_mak(FILE *, FILE *, char *);␊ |
| 145 | static void expunge_mak(register FILE *makin, register FILE *makout);␊ |
| 146 | static void skip_mak(register FILE *makin, register FILE *makout);␊ |
| 147 | static void finish_mak(FILE *, FILE *);␊ |
| 148 | ␊ |
| 149 | int main(int argc, register char **argv)␊ |
| 150 | {␊ |
| 151 | int size;␊ |
| 152 | ␊ |
| 153 | name = *argv;␊ |
| 154 | {␊ |
| 155 | register char *cp =name;␊ |
| 156 | while (*cp) if (*cp++ == '/') name = cp;␊ |
| 157 | }␊ |
| 158 | ␊ |
| 159 | for ( argv++ ; --argc ; argv++ )␊ |
| 160 | {␊ |
| 161 | ␊ |
| 162 | register char *token = *argv;␊ |
| 163 | if (*token++ != '-' || !*token)␊ |
| 164 | break;␊ |
| 165 | else␊ |
| 166 | {␊ |
| 167 | register int flag;␊ |
| 168 | for ( ; (flag = *token++) ; )␊ |
| 169 | {␊ |
| 170 | switch (flag)␊ |
| 171 | {␊ |
| 172 | case 'd':␊ |
| 173 | delete++;␊ |
| 174 | break;␊ |
| 175 | case 'f':␊ |
| 176 | force++;␊ |
| 177 | break;␊ |
| 178 | case 'u':␊ |
| 179 | update++;␊ |
| 180 | case 'm':␊ |
| 181 | makefile = *++argv;␊ |
| 182 | if (--argc < 0) goto usage;␊ |
| 183 | break;␊ |
| 184 | case 'o':␊ |
| 185 | outfile = *++argv;␊ |
| 186 | if (--argc < 0) goto usage;␊ |
| 187 | break;␊ |
| 188 | case 'v':␊ |
| 189 | verbose++;␊ |
| 190 | break;␊ |
| 191 | case 'x':␊ |
| 192 | expunge++;␊ |
| 193 | break;␊ |
| 194 | case 'D':␊ |
| 195 | for ( ; (flag = *token++) ; )␊ |
| 196 | switch (flag)␊ |
| 197 | {␊ |
| 198 | case 'c':␊ |
| 199 | D_contents++;␊ |
| 200 | break;␊ |
| 201 | case 'd':␊ |
| 202 | D_depend++;␊ |
| 203 | break;␊ |
| 204 | case 'm':␊ |
| 205 | D_make++;␊ |
| 206 | break;␊ |
| 207 | case 'o':␊ |
| 208 | D_open++;␊ |
| 209 | break;␊ |
| 210 | case 't':␊ |
| 211 | D_time++;␊ |
| 212 | break;␊ |
| 213 | case 'D':␊ |
| 214 | debug++;␊ |
| 215 | break;␊ |
| 216 | default:␊ |
| 217 | goto letters;␊ |
| 218 | ␊ |
| 219 | }␊ |
| 220 | goto newtoken;␊ |
| 221 | default:␊ |
| 222 | goto usage;␊ |
| 223 | }␊ |
| 224 | letters: ;␊ |
| 225 | }␊ |
| 226 | }␊ |
| 227 | newtoken: ;␊ |
| 228 | }␊ |
| 229 | ␊ |
| 230 | if (!expunge && argc < 1) goto usage;␊ |
| 231 | if ((int) outfile && (int) makefile) /* not both */␊ |
| 232 | goto usage;␊ |
| 233 | ␊ |
| 234 | if ((int) outfile)␊ |
| 235 | {␊ |
| 236 | /*␊ |
| 237 | * NeXT_MOD, For SGS stuff, in case still linked to master version␊ |
| 238 | */␊ |
| 239 | unlink(outfile);␊ |
| 240 | ␊ |
| 241 | if ((out = fopen(outfile, "w")) == NULL)␊ |
| 242 | {␊ |
| 243 | fprintf(stderr, "%s: outfile = \"%s\" ", name, outfile);␊ |
| 244 | perror("fopen");␊ |
| 245 | fflush(stdout), fflush(stderr);␊ |
| 246 | exit(1);␊ |
| 247 | }␊ |
| 248 | else if (D_open)␊ |
| 249 | printf("%s: opened outfile \"%s\"\n", name, outfile);␊ |
| 250 | }␊ |
| 251 | else if ((mak = find_mak(makefile)))␊ |
| 252 | {␊ |
| 253 | makout = temp_mak();␊ |
| 254 | out = makout;␊ |
| 255 | if (expunge)␊ |
| 256 | expunge_mak(mak, makout);␊ |
| 257 | else␊ |
| 258 | skip_mak(mak, makout);␊ |
| 259 | }␊ |
| 260 | else if (mak_eof && /* non existent file == mt file */␊ |
| 261 | (int)(makout = temp_mak()))␊ |
| 262 | { /* but we need to be able */␊ |
| 263 | out = makout; /* to write here */␊ |
| 264 | }␊ |
| 265 | else if (makefile)␊ |
| 266 | {␊ |
| 267 | fprintf(stderr, "%s: makefile \"%s\" can not be opened or stat'ed\n",␊ |
| 268 | name, makefile);␊ |
| 269 | exit(2);␊ |
| 270 | }␊ |
| 271 | ␊ |
| 272 | for (; argc--; argv++)␊ |
| 273 | {␊ |
| 274 | dep_file_index = 0;␊ |
| 275 | ␊ |
| 276 | if ((size = read_dep(*argv)))␊ |
| 277 | {␊ |
| 278 | ␊ |
| 279 | save_dot_o();␊ |
| 280 | if (D_depend) printf("%s: dot_o = \"%s\"\n", name, dot_o);␊ |
| 281 | ␊ |
| 282 | parse_dep();␊ |
| 283 | if (mak) scan_mak(mak, makout, dot_o);␊ |
| 284 | if (out) output_dep(out);␊ |
| 285 | ␊ |
| 286 | if (delete)␊ |
| 287 | unlink(*argv);␊ |
| 288 | }␊ |
| 289 | }␊ |
| 290 | ␊ |
| 291 | if (mak) finish_mak(mak, makout);␊ |
| 292 | rename(shadow_mak_name, real_mak_name);␊ |
| 293 | exit(0);␊ |
| 294 | usage:␊ |
| 295 | fprintf(stderr, "usage: md -f -Dcdmot -m makefile -o outputfile -v <file1> ... <filen>\n");␊ |
| 296 | exit(1);␊ |
| 297 | return 1;␊ |
| 298 | }␊ |
| 299 | ␊ |
| 300 | ␊ |
| 301 | static int read_dep(register char *file)␊ |
| 302 | {␊ |
| 303 | register int fd;␊ |
| 304 | register int size;␊ |
| 305 | struct stat statbuf;␊ |
| 306 | ␊ |
| 307 | if ((fd = open(file, 0)) < 0)␊ |
| 308 | {␊ |
| 309 | fprintf(stderr, "%s: file = \"%s\" ", name, file);␊ |
| 310 | perror("open");␊ |
| 311 | fflush(stdout), fflush(stderr);␊ |
| 312 | return 0;␊ |
| 313 | }␊ |
| 314 | if (D_open)␊ |
| 315 | printf("%s: opened dependency file \"%s\"\n", name, file);␊ |
| 316 | ␊ |
| 317 | if (fstat(fd, &statbuf) < 0)␊ |
| 318 | {␊ |
| 319 | fprintf(stderr, "%s: file = \"%s\" ", name, file);␊ |
| 320 | perror("stat");␊ |
| 321 | fflush(stdout), fflush(stderr);␊ |
| 322 | goto out;␊ |
| 323 | }␊ |
| 324 | switch(statbuf.st_mode & S_IFMT)␊ |
| 325 | {␊ |
| 326 | case S_IFREG:␊ |
| 327 | if (D_time)␊ |
| 328 | printf("%s: file time = %ld\n", name, statbuf.st_mtime);␊ |
| 329 | ␊ |
| 330 | if (statbuf.st_size > IObuffer)␊ |
| 331 | {␊ |
| 332 | fprintf(stderr, "%s: file \"%s\" tooo big for IObuffer\n",␊ |
| 333 | name, file);␊ |
| 334 | goto out;␊ |
| 335 | } else if (force)␊ |
| 336 | break;␊ |
| 337 | else if ((int) mak && statbuf.st_mtime < makstat.st_mtime)␊ |
| 338 | {␊ |
| 339 | if (verbose || D_time)␊ |
| 340 | fprintf(stderr, "%s: skipping \"%s\" %ld < %ld \"%s\"\n",␊ |
| 341 | name, file, statbuf.st_mtime, makstat.st_mtime,␊ |
| 342 | real_mak_name);␊ |
| 343 | goto out;␊ |
| 344 | } else /* >= =>ok */␊ |
| 345 | break;␊ |
| 346 | case S_IFDIR:␊ |
| 347 | case S_IFLNK:␊ |
| 348 | case S_IFCHR:␊ |
| 349 | case S_IFBLK:␊ |
| 350 | case S_IFSOCK:␊ |
| 351 | default:␊ |
| 352 | fprintf(stderr, "%s: bad mode: 0%o on \"%s\"\n",␊ |
| 353 | name, statbuf.st_mode, file);␊ |
| 354 | fflush(stdout), fflush(stderr);␊ |
| 355 | goto out;␊ |
| 356 | }␊ |
| 357 | ␊ |
| 358 | if ((size = read(fd, file_array, sizeof (file_array))) < 0)␊ |
| 359 | {␊ |
| 360 | fprintf(stderr, "%s: file = \"%s\" ", name, file);␊ |
| 361 | perror("read");␊ |
| 362 | fflush(stdout), fflush(stderr);␊ |
| 363 | goto out;␊ |
| 364 | }␊ |
| 365 | file_array[size] = 0;␊ |
| 366 | ␊ |
| 367 | if (close(fd) < 0)␊ |
| 368 | {␊ |
| 369 | fprintf(stderr, "%s: file = \"%s\" ", name, file);␊ |
| 370 | perror("close");␊ |
| 371 | fflush(stdout), fflush(stderr);␊ |
| 372 | return 0;␊ |
| 373 | }␊ |
| 374 | ␊ |
| 375 | if (D_depend && D_contents)␊ |
| 376 | printf("file_array: \"%s\"\n", file_array);␊ |
| 377 | return size;␊ |
| 378 | out: ;␊ |
| 379 | close(fd);␊ |
| 380 | return 0;␊ |
| 381 | }␊ |
| 382 | ␊ |
| 383 | static void save_dot_o(void)␊ |
| 384 | {␊ |
| 385 | register char *cp = file_array;␊ |
| 386 | register char *svp = dot_o;␊ |
| 387 | register int c;␊ |
| 388 | ␊ |
| 389 | while ((*svp++ = (c = *cp++)) && c != ':');␊ |
| 390 | *svp = 0;␊ |
| 391 | }␊ |
| 392 | ␊ |
| 393 | static void parse_dep(void)␊ |
| 394 | {␊ |
| 395 | register char *lp = file_array;␊ |
| 396 | register int c;␊ |
| 397 | ␊ |
| 398 | while (*lp)␊ |
| 399 | {␊ |
| 400 | register char *tlp = lp;␊ |
| 401 | register char *cp = dep_line;␊ |
| 402 | register int i = 0;␊ |
| 403 | int abspath = 0;␊ |
| 404 | char oldc;␊ |
| 405 | char *oldcp;␊ |
| 406 | ␊ |
| 407 | /* get a line to process */␊ |
| 408 | while ((c = *lp++) && c != '\n')␊ |
| 409 | {␊ |
| 410 | if (c == '\\')␊ |
| 411 | lp++; /* skip backslash newline */␊ |
| 412 | else␊ |
| 413 | *cp++ = c;␊ |
| 414 | }␊ |
| 415 | if (!c)␊ |
| 416 | break;␊ |
| 417 | *cp = 0;␊ |
| 418 | cp = dep_line;␊ |
| 419 | lp[-1] = 0;␊ |
| 420 | /* skip .o file name */␊ |
| 421 | while ((c = *cp++) && c != ':'); if (!c) continue;␊ |
| 422 | next_filename:␊ |
| 423 | i = 0;␊ |
| 424 | abspath = 0;␊ |
| 425 | while ((c = *cp) && (c == ' ' || c == '\t')) cp++; if (!c) continue;␊ |
| 426 | ␊ |
| 427 | /* canonicalization processing */␊ |
| 428 | ␊ |
| 429 | /* initial / is remembered */␊ |
| 430 | if (c == '/')␊ |
| 431 | abspath++;␊ |
| 432 | ␊ |
| 433 | while (c && c != ' ' && c != '\t')␊ |
| 434 | {␊ |
| 435 | if (D_depend) printf("i = %d going \"%s\"\n", i, cp);␊ |
| 436 | /* kill \'s */␊ |
| 437 | while ((c = *cp) && c == '/') cp++; if (!c) break;␊ |
| 438 | path_component[i] = cp;␊ |
| 439 | /* swallow chars till next / or null */␊ |
| 440 | while ((c = *cp++) && c != '/' && c != ' ' && c != '\t');␊ |
| 441 | if (c) cp[-1]=0;/* end component C style */␊ |
| 442 | ␊ |
| 443 | /* ignore . */;␊ |
| 444 | if (!strncmp(path_component[i], ".", sizeof(".")))␊ |
| 445 | ; /* if "component" != .. */␊ |
| 446 | else /* don't reduce /component/.. to nothing */␊ |
| 447 | i++; /* there could be symbolic links! */␊ |
| 448 | }␊ |
| 449 | /* reassemble components */␊ |
| 450 | oldc = c; /* save c */␊ |
| 451 | oldcp = cp; /* save cp */␊ |
| 452 | cp = tlp; /* overwrite line in buffer */␊ |
| 453 | if (abspath)␊ |
| 454 | *cp++ = '/';␊ |
| 455 | for (c=0; c<i; c++) {register char *ccp = path_component[c];␊ |
| 456 | while ((*cp++ = *ccp++));␊ |
| 457 | *--cp = '/';␊ |
| 458 | cp++;␊ |
| 459 | }␊ |
| 460 | *--cp = 0;␊ |
| 461 | ␊ |
| 462 | c=dep_file_index++;␊ |
| 463 | dep_files[c].str = tlp;␊ |
| 464 | dep_files[c].len = cp - tlp;␊ |
| 465 | if (D_depend)␊ |
| 466 | printf("%s: dep_file[%d] = \"%s\" Len %ld\n",␊ |
| 467 | name, dep_file_index - 1, tlp, (long)(cp - tlp));␊ |
| 468 | tlp = cp + 1;␊ |
| 469 | if (oldc)␊ |
| 470 | {␊ |
| 471 | cp = oldcp;␊ |
| 472 | goto next_filename;␊ |
| 473 | }␊ |
| 474 | }␊ |
| 475 | }␊ |
| 476 | ␊ |
| 477 | static void output_dep(FILE *out)␊ |
| 478 | {␊ |
| 479 | register int j;␊ |
| 480 | register int size = 1000;␊ |
| 481 | register int dot_o_len = strlen(dot_o);␊ |
| 482 | register struct dep *dp = dep_files;␊ |
| 483 | int written = 0;␊ |
| 484 | ␊ |
| 485 | if (D_depend && debug)␊ |
| 486 | for(j = 0; j < dep_file_index; j++)␊ |
| 487 | {␊ |
| 488 | printf("dep_files[%d] = %s\n", j, dep_files[j].str);␊ |
| 489 | }␊ |
| 490 | typedef int (*qsort_strcmp_fixer)(const void *, const void *);␊ |
| 491 | ␊ |
| 492 | int (*qsort_strcmp_fix)(const void *, const void *) = (qsort_strcmp_fixer)qsort_strcmp;␊ |
| 493 | ␊ |
| 494 | qsort(dep_files, dep_file_index, sizeof (struct dep), qsort_strcmp_fix);␊ |
| 495 | ␊ |
| 496 | if (D_depend && debug)␊ |
| 497 | for(j = 0; j < dep_file_index; j++)␊ |
| 498 | {␊ |
| 499 | printf("dep_files[%d] = %s\n", j, dep_files[j].str);␊ |
| 500 | }␊ |
| 501 | ␊ |
| 502 | fprintf(out, "%s %s", SALUTATION, dot_o);␊ |
| 503 | for(j = 0; j < dep_file_index; j++, dp++)␊ |
| 504 | {␊ |
| 505 | register int len = dp->len;␊ |
| 506 | register char *str = dp->str;␊ |
| 507 | if (j && len == (dp-1)->len && !strcmp(str, (dp-1)->str))␊ |
| 508 | continue;␊ |
| 509 | written++;␊ |
| 510 | if (size + len + 1 > OUTLINELEN)␊ |
| 511 | {␊ |
| 512 | fprintf(out, "\n%s %s", dot_o, str);␊ |
| 513 | size = dot_o_len + len + 1;␊ |
| 514 | }␊ |
| 515 | else␊ |
| 516 | {␊ |
| 517 | fprintf(out, " %s", str);␊ |
| 518 | size += len + 1;␊ |
| 519 | }␊ |
| 520 | }␊ |
| 521 | fprintf(out, "\n");␊ |
| 522 | if (verbose)␊ |
| 523 | fprintf(stdout, "%s: \"%s\" %d => %d\n", name, dot_o, dep_file_index, written);␊ |
| 524 | }␊ |
| 525 | ␊ |
| 526 | /* process makefile */␊ |
| 527 | static FILE *find_mak(char *file)␊ |
| 528 | {␊ |
| 529 | FILE *mak;␊ |
| 530 | ␊ |
| 531 | if ((int) file)␊ |
| 532 | {␊ |
| 533 | if ((mak = fopen(file, "r")) != NULL)␊ |
| 534 | {␊ |
| 535 | real_mak_name = file;␊ |
| 536 | }␊ |
| 537 | else if (update)␊ |
| 538 | {␊ |
| 539 | mak_eof = 1;␊ |
| 540 | real_mak_name = file;␊ |
| 541 | return NULL;␊ |
| 542 | }␊ |
| 543 | else␊ |
| 544 | {␊ |
| 545 | fprintf(stderr, "%s: file = \"%s\" ", name, file);␊ |
| 546 | perror("fopen");␊ |
| 547 | fflush(stdout), fflush(stderr);␊ |
| 548 | return NULL;␊ |
| 549 | }␊ |
| 550 | }␊ |
| 551 | else␊ |
| 552 | {␊ |
| 553 | if ((mak = fopen("makefile", "r")) != NULL)␊ |
| 554 | {␊ |
| 555 | real_mak_name = "makefile";␊ |
| 556 | }␊ |
| 557 | else if ((mak = fopen("Makefile", "r")) != NULL)␊ |
| 558 | {␊ |
| 559 | real_mak_name = "Makefile";␊ |
| 560 | }␊ |
| 561 | else return NULL;␊ |
| 562 | }␊ |
| 563 | ␊ |
| 564 | if (fstat(fileno(mak), &makstat) < 0)␊ |
| 565 | {␊ |
| 566 | fprintf(stderr, "%s: file = \"%s\" ", name, real_mak_name);␊ |
| 567 | perror("stat");␊ |
| 568 | fflush(stdout), fflush(stderr);␊ |
| 569 | ␉␉fclose(mak);␊ |
| 570 | return NULL;␊ |
| 571 | }␊ |
| 572 | if (D_open)␊ |
| 573 | printf("%s: opened makefile \"%s\"\n", name, real_mak_name);␊ |
| 574 | if (D_time)␊ |
| 575 | printf("%s: makefile time = %ld\n", name, makstat.st_mtime);␊ |
| 576 | ␊ |
| 577 | return mak;␊ |
| 578 | }␊ |
| 579 | ␊ |
| 580 | static FILE *temp_mak(void)␊ |
| 581 | {␊ |
| 582 | FILE *mak;␊ |
| 583 | ␊ |
| 584 | strlcpy(shadow_mak_name, real_mak_name, sizeof(shadow_mak_name));␊ |
| 585 | strlcat(shadow_mak_name, ".md", sizeof(shadow_mak_name));␊ |
| 586 | ␊ |
| 587 | /*␊ |
| 588 | * For SGS stuff, in case still linked to master version␊ |
| 589 | */␊ |
| 590 | unlink(shadow_mak_name);␊ |
| 591 | if ((mak = fopen(shadow_mak_name, "w")) == NULL)␊ |
| 592 | {␊ |
| 593 | fprintf(stderr, "%s: file = \"%s\" ", name, shadow_mak_name);␊ |
| 594 | perror("fopen");␊ |
| 595 | fflush(stdout), fflush(stderr);␊ |
| 596 | return NULL;␊ |
| 597 | }␊ |
| 598 | if (D_open)␊ |
| 599 | printf("%s: opened makefile.md \"%s\"\n", name, shadow_mak_name);␊ |
| 600 | ␊ |
| 601 | return mak;␊ |
| 602 | }␊ |
| 603 | ␊ |
| 604 | static void skip_mak(register FILE *makin, register FILE *makout)␊ |
| 605 | {␊ |
| 606 | register int len = SALUTATIONLEN;␊ |
| 607 | ␊ |
| 608 | if (D_make)␊ |
| 609 | printf("skipping in \"%s\" ", real_mak_name);␊ |
| 610 | ␊ |
| 611 | while (fgets(makbuf, LINESIZE, makin) != NULL)␊ |
| 612 | {␊ |
| 613 | if (D_make && D_contents)␊ |
| 614 | printf("%s: \"%s\"\n", real_mak_name, makbuf);␊ |
| 615 | if (strncmp(makbuf, SALUTATION, len))␊ |
| 616 | {␊ |
| 617 | fputs(makbuf, makout);␊ |
| 618 | }␊ |
| 619 | else␊ |
| 620 | break;␊ |
| 621 | }␊ |
| 622 | mak_eof = feof(makin);␊ |
| 623 | if (mak_eof)␊ |
| 624 | fclose(makin);␊ |
| 625 | if (D_make)␊ |
| 626 | printf("eof = %d str = \"%s\"", mak_eof, makbuf);␊ |
| 627 | }␊ |
| 628 | ␊ |
| 629 | static void expunge_mak(register FILE *makin, register FILE *makout)␊ |
| 630 | {␊ |
| 631 | register int len = SALUTATIONLEN;␊ |
| 632 | register int oldlen = OLDSALUTATIONLEN;␊ |
| 633 | ␊ |
| 634 | if (D_make)␊ |
| 635 | printf("expunging in \"%s\" ", real_mak_name);␊ |
| 636 | ␊ |
| 637 | while (fgets(makbuf, LINESIZE, makin) != NULL)␊ |
| 638 | {␊ |
| 639 | if (D_make && D_contents)␊ |
| 640 | printf("%s: \"%s\"\n", real_mak_name, makbuf);␊ |
| 641 | if (! strncmp(makbuf, SALUTATION, len) ||␊ |
| 642 | ! strncmp(makbuf, OLDSALUTATION, oldlen))␊ |
| 643 | break;␊ |
| 644 | else␊ |
| 645 | fputs(makbuf, makout);␊ |
| 646 | }␊ |
| 647 | mak_eof = 1;␊ |
| 648 | if (mak_eof)␊ |
| 649 | fclose(makin);␊ |
| 650 | if (D_make)␊ |
| 651 | printf("eof = %d str = \"%s\"", mak_eof, makbuf);␊ |
| 652 | }␊ |
| 653 | ␊ |
| 654 | static void␊ |
| 655 | scan_mak(FILE *makin, FILE *makout, char *file)␊ |
| 656 | {␊ |
| 657 | register char *cp = &makbuf[SALUTATIONLEN+1];␊ |
| 658 | register int len = strlen(file);␊ |
| 659 | register int ret;␊ |
| 660 | ␊ |
| 661 | if (D_make)␊ |
| 662 | printf("scanning in \"%s\" for \"%s\"\n", real_mak_name, file);␊ |
| 663 | ␊ |
| 664 | do {␊ |
| 665 | if (mak_eof) /* don't scan any more */␊ |
| 666 | return;␊ |
| 667 | ␊ |
| 668 | ret = strncmp(cp, file, len);␊ |
| 669 | if (D_make)␊ |
| 670 | printf("saw \"%s\" ret = %d\n", cp, ret);␊ |
| 671 | ␊ |
| 672 | if (ret < 0) { /* skip forward till match or greater */␊ |
| 673 | fputs(makbuf, makout); /* line we're looking at */␊ |
| 674 | while (fgets(makbuf, LINESIZE, makin) != NULL)␊ |
| 675 | {␊ |
| 676 | if (strncmp(makbuf, SALUTATION, SALUTATIONLEN))␊ |
| 677 | {␊ |
| 678 | fputs(makbuf, makout);␊ |
| 679 | }␊ |
| 680 | else␊ |
| 681 | break;␊ |
| 682 | }␊ |
| 683 | mak_eof = feof(makin);␊ |
| 684 | ␊ |
| 685 | if (mak_eof)␊ |
| 686 | fclose(makin);␊ |
| 687 | ␊ |
| 688 | continue;␊ |
| 689 | }␊ |
| 690 | else if (ret == 0)␊ |
| 691 | { /* flush match */␊ |
| 692 | while (fgets(makbuf, LINESIZE, makin) != NULL)␊ |
| 693 | {␊ |
| 694 | if (strncmp(makbuf, SALUTATION, SALUTATIONLEN))␊ |
| 695 | {␊ |
| 696 | ; /* flush old stuff */␊ |
| 697 | }␊ |
| 698 | else␊ |
| 699 | break;␊ |
| 700 | }␊ |
| 701 | mak_eof = feof(makin);␊ |
| 702 | if (mak_eof)␊ |
| 703 | fclose(makin);␊ |
| 704 | break;␊ |
| 705 | }␊ |
| 706 | else␊ |
| 707 | { /* no luck this time */␊ |
| 708 | break;␊ |
| 709 | }␊ |
| 710 | } while (1);␊ |
| 711 | }␊ |
| 712 | ␊ |
| 713 | static void␊ |
| 714 | finish_mak(FILE *makin, FILE *makout)␊ |
| 715 | {␊ |
| 716 | if (mak_eof) /* don't scan any more */␊ |
| 717 | return;␊ |
| 718 | ␊ |
| 719 | if (D_make)␊ |
| 720 | printf("finishing in \"%s\"\n", real_mak_name);␊ |
| 721 | ␊ |
| 722 | fputs(makbuf, makout); /* line we're looking at */␊ |
| 723 | while (fgets(makbuf, LINESIZE, makin) != NULL)␊ |
| 724 | {␊ |
| 725 | fputs(makbuf, makout);␊ |
| 726 | }␊ |
| 727 | }␊ |
| 728 | |
