3 * $Id: sw_build.c,v 1.3 1999/09/10 15:27:33 mdw Exp $
5 * Management of build processes
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of sw-tools.
14 * sw-tools is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * sw-tools is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with sw-tools; if not, write to the Free Software Foundation,
26 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 /*----- Revision history --------------------------------------------------*
31 * $Log: sw_build.c,v $
32 * Revision 1.3 1999/09/10 15:27:33 mdw
33 * Include `%'-escape substitution.
35 * Revision 1.2 1999/07/16 12:50:24 mdw
36 * Improve exit status display. New interface from `doto' project.
38 * Revision 1.1.1.1 1999/06/02 16:53:34 mdw
43 /*----- Header files ------------------------------------------------------*/
55 #include <sys/types.h>
57 #include <sys/select.h>
62 #include <sys/utsname.h>
65 extern char **environ;
68 #include <mLib/alloc.h>
69 #include <mLib/dstr.h>
71 #include <mLib/quis.h>
72 #include <mLib/report.h>
81 #define PRES_DEFAULT 0
82 #define PRES_PREFERENCE 0
83 #include "pres_plain.h"
84 #include "pres_curses.h"
86 /*----- Data structures ---------------------------------------------------*/
88 /*----- Static variables --------------------------------------------------*/
90 static pres *preslist = PRES_LINK;
92 /*----- Main code ---------------------------------------------------------*/
94 /* --- @swbuild_archlist@ --- *
96 * Arguments: @swinfo *sw@ = pointer to the build information block
98 * Returns: A list of architectures which are to be built.
100 * Use: Decides which architectures need building, and returns them
104 archcons *swbuild_archlist(swinfo *sw)
106 archcons *a = arch_readtab();
107 const char *only = 0;
108 unsigned and = 0, xor = 0;
110 /* --- Restrict the architecture list appropriately --- */
112 only = opt_arch ? opt_arch : sw->only_arch;
114 /* --- Apply the built flags --- */
116 if (!(opt_flags & optFlag_force) && sw->arch) {
117 archcons *aa = arch_filter(a, sw->arch, 0, 0);
119 for (c = aa; c; c = c->cdr)
120 c->car->flags |= archFlag_built;
122 and |= archFlag_built;
125 return (arch_filter(a, only, and, xor));
128 /*----- Main build command ------------------------------------------------*/
130 /* --- @sw_run@ --- *
132 * Arguments: @int argc@ = number of command line arguments
133 * @char *argv[]@ = array of command line arguments
135 * Returns: Zero on success (all builds OK) or nonzero for failure.
137 * Use: Runs a multi-architecture build.
140 int sw_run(int argc, char *argv[])
144 pres *p = PRES_DEFAULT;
150 /* --- Handle help on output styles --- */
152 if (opt_output && strcmp(opt_output, "help") == 0) {
153 printf("Presentation styles supported:");
154 for (p = preslist; p; p = p->next)
155 printf(" %s", p->name);
157 printf("The default presentation style is %s\n", (PRES_DEFAULT)->name);
161 /* --- Validate arguments --- */
164 die(1, "Usage: run COMMAND [ARG...]");
166 /* --- Choose an output presentation style --- */
170 size_t sz = strlen(opt_output);
173 for (q = preslist; q; q = q->next) {
174 if (strncmp(opt_output, q->name, sz) == 0) {
175 if (q->name[sz] == 0) {
179 die(1, "ambiguous output style `%s'", opt_output);
186 die(1, "unknown output style `%s'", opt_output);
189 if (p->ok && !p->ok()) {
190 moan("output style `%s' can't run; using `plain' instead", p->name);
194 /* --- Decide on an architecture --- */
196 if (swinfo_fetch(&sw)) {
197 die(1, "couldn't read build status: %s (try running setup)",
201 a = swbuild_archlist(&sw);
204 moan("All desired architectures already built OK.");
205 moan("(Perhaps you forgot `--force', or want to say `%s reset'.)", QUIS);
209 /* --- Tie on remote context blocks, and crank up the presentation --- */
214 for (aa = a; aa; aa = aa->cdr)
215 aa->car->r = xmalloc(sizeof(sw_remote));
216 if (p->init && p->init(a))
217 die(1, "presentation style refused to start: %s", strerror(errno));
220 signal(SIGINT, SIG_IGN);
221 signal(SIGQUIT, SIG_IGN);
223 /* --- Trap any exceptions coming this way --- *
225 * It's important, for example, that a curses-based presentation system
226 * reset the terminal flags appropriately.
230 /* --- Run remote build processes on the remote hosts --- */
238 /* --- Fill in the hostname --- */
241 strcpy(u.nodename, "<unknown>");
243 /* --- If necessary, set up the output @argv@ array --- */
245 if (opt_flags & optFlag_percent)
246 av = xmalloc(argc * sizeof(char *));
250 /* --- Run through the target build hosts --- */
253 for (aa = a; aa; aa = aa->cdr) {
254 archent *e = aa->car;
257 /* --- If necessary, translate `%'-escapes --- */
259 if (opt_flags & optFlag_percent) {
262 for (pp = argv + 1, qq = av; *pp; pp++, qq++) {
263 if (strchr(*pp, '%') == 0)
268 for (p = *pp; *p; p++) {
280 dstr_puts(&d, e->arch);
283 dstr_puts(&d, e->flags & archFlag_home ?
284 u.nodename : e->host);
287 dstr_puts(&d, PREFIX);
290 dstr_puts(&d, sw.package);
293 dstr_puts(&d, sw.version);
296 dstr_puts(&d, sw.maintainer);
309 *qq = xstrdup(d.buf);
316 /* --- Start a new process off --- */
318 if (swrsh(r, e->flags & archFlag_home ? 0 : e->host,
321 dstr_putf(&d, "%s: couldn't start build for architecture `%s': %s",
322 QUIS, e->arch, strerror(errno));
323 p->output(e, d.buf, d.len);
335 /* --- Free up the argument array --- */
337 if (opt_flags & optFlag_percent) {
340 for (pp = argv + 1, qq = av; *pp; pp++, qq++) {
347 if (opt_flags & optFlag_percent)
351 /* --- Watch the builds until they do something interesting --- */
359 /* --- Find out what interesting things are happening --- */
361 memcpy(&f, &fdin, sizeof(f));
362 n = select(maxfd, &f, 0, 0, 0);
364 if (errno == EINTR || errno == EAGAIN)
367 THROW(EXC_ERRNO, errno);
370 /* --- Scan through for jobs which need attention --- */
372 for (aa = a; aa; aa = aa->cdr) {
373 archent *e = aa->car;
377 if (!FD_ISSET(r->fdin, &f))
380 switch (t = pkrecv(r)) {
383 p->output(e, r->buf, r->sz);
386 case PKTYPE_STATUS: {
391 dstr_putf(&d, "failed (%s)", r->buf);
394 } else if (r->buf[0]) {
395 dstr_putf(&d, "failed (status %u)", (unsigned char)r->buf[0]);
399 dstr_puts(&d, "finished");
400 if (opt_flags & optFlag_install)
401 e->flags |= archFlag_built;
404 p->close(e, ok, d.buf);
406 FD_CLR(r->fdin, &fdin);
413 p->close(e, 0, "unexpected exit");
415 FD_CLR(r->fdin, &fdin);
421 const static char msg[] = "\n[Unexpected packet, type %i]\n";
422 p->output(e, msg, sizeof(msg) - 1);
429 /* --- Handle any exceptions coming this way --- *
431 * I could do more cleanup here (freeing buffers and so) but it's not worth
432 * it. Nobody's bothering to catch exceptions anyway.
440 die(1, "unexpected error: %s", strerror(exc_i));
448 /* --- Tell the presentation that everything's done --- */
452 else if (opt_flags & optFlag_beep)
455 /* --- Clean up the unwanted remote contexts --- */
459 for (aa = a; aa; aa = aa->cdr)
463 /* --- Tidy away the architecture list --- */
467 /* --- Mark built architectures as having been completed now --- */
469 if (opt_flags & optFlag_install) {
473 arch_toText(&d, arch_readtab(), archFlag_built, archFlag_built);
475 swinfo_update(&sw, &skel);
478 die(1, "error writing build status: %s", strerror(errno));
483 /*----- Main remote entry point -------------------------------------------*/
487 * Arguments: @sw_remote *r@ = pointer to remote context
488 * @FILE *fp@ = log file handle
489 * @const char *fmt@ = format string
490 * @...@ = other arguments
494 * Use: Reports a string to the log file and the remote controller
498 static void putf(sw_remote *r, FILE *fp, const char *fmt, ...)
503 dstr_vputf(&d, fmt, ap);
506 pksend(r, PKTYPE_DATA, d.buf, d.len);
508 fwrite(d.buf, 1, d.len, fp);
512 /* --- @swrsh_build@ --- *
514 * Arguments: @sw_remote *r@ = pointer to remote context
515 * @char *argv[]@ = pointer to argument list
516 * @char *env[]@ = pointer to environment list
520 * Use: Runs a remote build command.
523 void swrsh_build(sw_remote *r, char *argv[], char *env[])
529 /* --- Validate the arguments --- */
532 swdie(r, 1, "Usage: build COMMAND [ARG...]");
534 /* --- Change into architecture directory --- */
536 if (mkdir(ARCH, 0775) && errno != EEXIST)
537 swdie(r, 1, "mkdir(`%s') failed: %s", ARCH, strerror(errno));
539 swdie(r, 1, "couldn't change directory to `%s': %s",
540 ARCH, strerror(errno));
543 swdie(r, 1, "couldn't create pipe: %s", strerror(errno));
545 /* --- Open the log file --- */
548 int logfd = open(".build-log", O_WRONLY | O_APPEND | O_CREAT, 0664);
556 swdie(r, 1, "couldn't get hostname: %s", strerror(errno));
558 swdie(r, 1, "couldn't open `.build-log' file: %s", strerror(errno));
559 if ((logfp = fdopen(logfd, "a")) == 0) {
560 swdie(r, 1, "couldn't open stream on `.build-log' file: %s",
565 strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", tm);
566 fprintf(logfp, "\n\n*** %s: %s started build: %s",
567 buf, u.nodename, argv[0]);
568 for (p = argv + 1; *p; p++)
569 fprintf(logfp, " %s", *p);
570 fputs("\n\n", logfp);
573 /* --- Start off the child process --- */
584 nullfd = open("/dev/null", O_RDONLY);
590 execvp(argv[0], argv);
591 fprintf(stderr, "failed to start `%s': %s\n", argv[0], strerror(errno));
595 /* --- Read from the pipe, and write to the socket and logfile --- */
599 ssize_t n = read(fd[0], r->buf, PKMAX);
603 putf(r, logfp, "\n*** error reading from pipe: %s\n", strerror(errno));
607 fwrite(r->buf, 1, n, logfp);
608 pksend(r, PKTYPE_DATA, r->buf, n);
612 /* --- Reap exit status and produce final report --- */
616 if (waitpid(kid, &status, 0) < 0) {
617 putf(r, logfp, "\n*** error reading exit status: %s\n",
620 if (WIFSIGNALED(status))
621 fprintf(logfp, "\n*** exited on signal %i\n", WTERMSIG(status));
622 else if (WIFEXITED(status))
623 fprintf(logfp, "\n*** exited with status %i\n", WEXITSTATUS(status));
625 fprintf(logfp, "\n*** reaped, but didn't exit. Strange\n");
632 /*----- Syntactic sugar ---------------------------------------------------*/
635 * `Syntactic sugar causes cancer of the semicolon.'
636 * -- Alan Perlis, `Epigrams in Programming'
641 * Arguments: @char **u@ = first segment
642 * @char **v@ = second segment
644 * Returns: Return code from the build.
646 * Use: Combines two @argv@-style arrays and then runs a build on the
650 static int build(char **u, char **v)
655 for (i = 0, p = u; *p; p++, i++) ;
656 for (j = 0, p = v; *p; p++, j++) ;
657 p = xmalloc((i + j + 2) * sizeof(char **));
658 memcpy(p + 1, u, i * sizeof(char **));
659 memcpy(p + i + 1, v, j * sizeof(char **));
660 p[0] = p[i + j + 1] = 0;
661 return (sw_run(i + j + 1, p));
664 /* --- @sw_make@ --- */
666 int sw_make(int argc, char *argv[])
668 static char *mk[] = { 0, 0 };
671 if ((m = getenv("SW_MAKE")) == 0 &&
672 (m = getenv("MAKE")) == 0)
676 return (build(mk, argv + 1));
679 /* --- @sw_conf@ --- */
681 int sw_conf(int argc, char *argv[])
683 static char *cf[] = { "../configure", "--prefix=" PREFIX, 0 };
684 return (build(cf, argv + 1));
687 /*----- Other subcommands -------------------------------------------------*/
689 /* --- @sw_reset@ --- */
691 int sw_reset(int argc, char *argv[])
695 die(1, "Usage: reset");
696 if (swinfo_fetch(&sw)) {
697 die(1, "couldn't read build status: %s (try running setup)",
703 swinfo_update(&sw, &skel);
705 die(1, "couldn't write build status: %s", strerror(errno));
709 /*----- That's all, folks -------------------------------------------------*/