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 /*----- Header files ------------------------------------------------------*/
42 #include <sys/types.h>
44 #include <sys/select.h>
49 #include <sys/utsname.h>
52 extern char **environ
;
55 #include <mLib/alloc.h>
56 #include <mLib/dstr.h>
58 #include <mLib/quis.h>
59 #include <mLib/report.h>
68 #define PRES_DEFAULT 0
69 #define PRES_PREFERENCE 0
70 #include "pres_plain.h"
71 #include "pres_curses.h"
73 /*----- Data structures ---------------------------------------------------*/
75 /*----- Static variables --------------------------------------------------*/
77 static pres
*preslist
= PRES_LINK
;
79 /*----- Main code ---------------------------------------------------------*/
81 /* --- @swbuild_archlist@ --- *
83 * Arguments: @swinfo *sw@ = pointer to the build information block
85 * Returns: A list of architectures which are to be built.
87 * Use: Decides which architectures need building, and returns them
91 archcons
*swbuild_archlist(swinfo
*sw
)
93 archcons
*a
= arch_readtab();
95 unsigned and = 0, xor = 0;
97 /* --- Restrict the architecture list appropriately --- */
99 only
= opt_arch ? opt_arch
: sw
->only_arch
;
101 /* --- Apply the built flags --- */
103 if (!(opt_flags
& optFlag_force
) && sw
->arch
) {
104 archcons
*aa
= arch_filter(a
, sw
->arch
, 0, 0);
106 for (c
= aa
; c
; c
= c
->cdr
)
107 c
->car
->flags
|= archFlag_built
;
109 and |= archFlag_built
;
112 return (arch_filter(a
, only
, and, xor));
115 /*----- Main build command ------------------------------------------------*/
117 /* --- @sw_run@ --- *
119 * Arguments: @int argc@ = number of command line arguments
120 * @char *argv[]@ = array of command line arguments
122 * Returns: Zero on success (all builds OK) or nonzero for failure.
124 * Use: Runs a multi-architecture build.
127 int sw_run(int argc
, char *argv
[])
131 pres
*p
= PRES_DEFAULT
;
137 /* --- Handle help on output styles --- */
139 if (opt_output
&& strcmp(opt_output
, "help") == 0) {
140 printf("Presentation styles supported:");
141 for (p
= preslist
; p
; p
= p
->next
)
142 printf(" %s", p
->name
);
144 printf("The default presentation style is %s\n", (PRES_DEFAULT
)->name
);
148 /* --- Validate arguments --- */
151 die(1, "Usage: run COMMAND [ARG...]");
153 /* --- Choose an output presentation style --- */
157 size_t sz
= strlen(opt_output
);
160 for (q
= preslist
; q
; q
= q
->next
) {
161 if (strncmp(opt_output
, q
->name
, sz
) == 0) {
162 if (q
->name
[sz
] == 0) {
166 die(1, "ambiguous output style `%s'", opt_output
);
173 die(1, "unknown output style `%s'", opt_output
);
176 if (p
->ok
&& !p
->ok()) {
177 moan("output style `%s' can't run; using `plain' instead", p
->name
);
181 /* --- Decide on an architecture --- */
183 if (swinfo_fetch(&sw
)) {
184 die(1, "couldn't read build status: %s (try running setup)",
188 a
= swbuild_archlist(&sw
);
191 moan("All desired architectures already built OK.");
192 moan("(Perhaps you forgot `--force', or want to say `%s reset'.)", QUIS
);
196 /* --- Tie on remote context blocks, and crank up the presentation --- */
201 for (aa
= a
; aa
; aa
= aa
->cdr
)
202 aa
->car
->r
= xmalloc(sizeof(sw_remote
));
203 if (p
->init
&& p
->init(a
))
204 die(1, "presentation style refused to start: %s", strerror(errno
));
207 signal(SIGINT
, SIG_IGN
);
208 signal(SIGQUIT
, SIG_IGN
);
210 /* --- Trap any exceptions coming this way --- *
212 * It's important, for example, that a curses-based presentation system
213 * reset the terminal flags appropriately.
217 /* --- Run remote build processes on the remote hosts --- */
225 /* --- Fill in the hostname --- */
228 strcpy(u
.nodename
, "<unknown>");
230 /* --- If necessary, set up the output @argv@ array --- */
232 if (opt_flags
& optFlag_percent
)
233 av
= xmalloc(argc
* sizeof(char *));
237 /* --- Run through the target build hosts --- */
240 for (aa
= a
; aa
; aa
= aa
->cdr
) {
241 archent
*e
= aa
->car
;
244 /* --- If necessary, translate `%'-escapes --- */
246 if (opt_flags
& optFlag_percent
) {
249 for (pp
= argv
+ 1, qq
= av
; *pp
; pp
++, qq
++) {
250 if (strchr(*pp
, '%') == 0)
255 for (p
= *pp
; *p
; p
++) {
267 dstr_puts(&d
, e
->arch
);
270 dstr_puts(&d
, e
->flags
& archFlag_home ?
271 u
.nodename
: e
->host
);
274 dstr_puts(&d
, PREFIX
);
277 dstr_puts(&d
, sw
.package
);
280 dstr_puts(&d
, sw
.version
);
283 dstr_puts(&d
, sw
.maintainer
);
296 *qq
= xstrdup(d
.buf
);
303 /* --- Start a new process off --- */
305 if (swrsh(r
, e
->flags
& archFlag_home ?
0 : e
->host
,
308 dstr_putf(&d
, "%s: couldn't start build for architecture `%s': %s",
309 QUIS
, e
->arch
, strerror(errno
));
310 p
->output(e
, d
.buf
, d
.len
);
322 /* --- Free up the argument array --- */
324 if (opt_flags
& optFlag_percent
) {
327 for (pp
= argv
+ 1, qq
= av
; *pp
; pp
++, qq
++) {
334 if (opt_flags
& optFlag_percent
)
338 /* --- Watch the builds until they do something interesting --- */
346 /* --- Find out what interesting things are happening --- */
348 memcpy(&f
, &fdin
, sizeof(f
));
349 n
= select(maxfd
, &f
, 0, 0, 0);
351 if (errno
== EINTR
|| errno
== EAGAIN
)
354 THROW(EXC_ERRNO
, errno
);
357 /* --- Scan through for jobs which need attention --- */
359 for (aa
= a
; aa
; aa
= aa
->cdr
) {
360 archent
*e
= aa
->car
;
364 if (!FD_ISSET(r
->fdin
, &f
))
367 switch (t
= pkrecv(r
)) {
370 p
->output(e
, r
->buf
, r
->sz
);
373 case PKTYPE_STATUS
: {
378 dstr_putf(&d
, "failed (%s)", r
->buf
);
381 } else if (r
->buf
[0]) {
382 dstr_putf(&d
, "failed (status %u)", (unsigned char)r
->buf
[0]);
386 dstr_puts(&d
, "finished");
387 if (opt_flags
& optFlag_install
)
388 e
->flags
|= archFlag_built
;
391 p
->close(e
, ok
, d
.buf
);
393 FD_CLR(r
->fdin
, &fdin
);
400 p
->close(e
, 0, "unexpected exit");
402 FD_CLR(r
->fdin
, &fdin
);
408 const static char msg
[] = "\n[Unexpected packet, type %i]\n";
409 p
->output(e
, msg
, sizeof(msg
) - 1);
416 /* --- Handle any exceptions coming this way --- *
418 * I could do more cleanup here (freeing buffers and so) but it's not worth
419 * it. Nobody's bothering to catch exceptions anyway.
427 die(1, "unexpected error: %s", strerror(exc_i
));
435 /* --- Tell the presentation that everything's done --- */
439 else if (opt_flags
& optFlag_beep
)
442 /* --- Clean up the unwanted remote contexts --- */
446 for (aa
= a
; aa
; aa
= aa
->cdr
)
450 /* --- Tidy away the architecture list --- */
454 /* --- Mark built architectures as having been completed now --- */
456 if (opt_flags
& optFlag_install
) {
460 arch_toText(&d
, arch_readtab(), archFlag_built
, archFlag_built
);
462 swinfo_update(&sw
, &skel
);
465 die(1, "error writing build status: %s", strerror(errno
));
470 /*----- Main remote entry point -------------------------------------------*/
474 * Arguments: @sw_remote *r@ = pointer to remote context
475 * @FILE *fp@ = log file handle
476 * @const char *fmt@ = format string
477 * @...@ = other arguments
481 * Use: Reports a string to the log file and the remote controller
485 static void putf(sw_remote
*r
, FILE *fp
, const char *fmt
, ...)
490 dstr_vputf(&d
, fmt
, &ap
);
493 pksend(r
, PKTYPE_DATA
, d
.buf
, d
.len
);
495 fwrite(d
.buf
, 1, d
.len
, fp
);
499 /* --- @swrsh_build@ --- *
501 * Arguments: @sw_remote *r@ = pointer to remote context
502 * @char *argv[]@ = pointer to argument list
503 * @char *env[]@ = pointer to environment list
507 * Use: Runs a remote build command.
510 void swrsh_build(sw_remote
*r
, char *argv
[], char *env
[])
516 /* --- Validate the arguments --- */
519 swdie(r
, 1, "Usage: build COMMAND [ARG...]");
521 /* --- Change into architecture directory --- */
523 if (mkdir(ARCH
, 0775) && errno
!= EEXIST
)
524 swdie(r
, 1, "mkdir(`%s') failed: %s", ARCH
, strerror(errno
));
526 swdie(r
, 1, "couldn't change directory to `%s': %s",
527 ARCH
, strerror(errno
));
530 swdie(r
, 1, "couldn't create pipe: %s", strerror(errno
));
532 /* --- Open the log file --- */
535 int logfd
= open(".build-log", O_WRONLY
| O_APPEND
| O_CREAT
, 0664);
543 swdie(r
, 1, "couldn't get hostname: %s", strerror(errno
));
545 swdie(r
, 1, "couldn't open `.build-log' file: %s", strerror(errno
));
546 if ((logfp
= fdopen(logfd
, "a")) == 0) {
547 swdie(r
, 1, "couldn't open stream on `.build-log' file: %s",
552 strftime(buf
, sizeof(buf
), "%Y-%m-%d %H:%M:%S", tm
);
553 fprintf(logfp
, "\n\n*** %s: %s started build: %s",
554 buf
, u
.nodename
, argv
[0]);
555 for (p
= argv
+ 1; *p
; p
++)
556 fprintf(logfp
, " %s", *p
);
557 fputs("\n\n", logfp
);
560 /* --- Start off the child process --- */
571 nullfd
= open("/dev/null", O_RDONLY
);
577 execvp(argv
[0], argv
);
578 fprintf(stderr
, "failed to start `%s': %s\n", argv
[0], strerror(errno
));
582 /* --- Read from the pipe, and write to the socket and logfile --- */
586 ssize_t n
= read(fd
[0], r
->buf
, PKMAX
);
590 putf(r
, logfp
, "\n*** error reading from pipe: %s\n", strerror(errno
));
594 fwrite(r
->buf
, 1, n
, logfp
);
595 pksend(r
, PKTYPE_DATA
, r
->buf
, n
);
599 /* --- Reap exit status and produce final report --- */
603 if (waitpid(kid
, &status
, 0) < 0) {
604 putf(r
, logfp
, "\n*** error reading exit status: %s\n",
607 if (WIFSIGNALED(status
))
608 fprintf(logfp
, "\n*** exited on signal %i\n", WTERMSIG(status
));
609 else if (WIFEXITED(status
))
610 fprintf(logfp
, "\n*** exited with status %i\n", WEXITSTATUS(status
));
612 fprintf(logfp
, "\n*** reaped, but didn't exit. Strange\n");
619 /*----- Syntactic sugar ---------------------------------------------------*/
622 * `Syntactic sugar causes cancer of the semicolon.'
623 * -- Alan Perlis, `Epigrams in Programming'
628 * Arguments: @char **u@ = first segment
629 * @char **v@ = second segment
631 * Returns: Return code from the build.
633 * Use: Combines two @argv@-style arrays and then runs a build on the
637 static int build(char **u
, char **v
)
642 for (i
= 0, p
= u
; *p
; p
++, i
++) ;
643 for (j
= 0, p
= v
; *p
; p
++, j
++) ;
644 p
= xmalloc((i
+ j
+ 2) * sizeof(char **));
645 memcpy(p
+ 1, u
, i
* sizeof(char **));
646 memcpy(p
+ i
+ 1, v
, j
* sizeof(char **));
647 p
[0] = p
[i
+ j
+ 1] = 0;
648 return (sw_run(i
+ j
+ 1, p
));
651 /* --- @sw_make@ --- */
653 int sw_make(int argc
, char *argv
[])
655 static char *mk
[] = { 0, 0 };
658 if ((m
= getenv("SW_MAKE")) == 0 &&
659 (m
= getenv("MAKE")) == 0)
663 return (build(mk
, argv
+ 1));
666 /* --- @sw_conf@ --- */
668 int sw_conf(int argc
, char *argv
[])
670 static char *cf
[] = { "../configure", "--prefix=" PREFIX
, 0 };
671 return (build(cf
, argv
+ 1));
674 /*----- Other subcommands -------------------------------------------------*/
676 /* --- @sw_reset@ --- */
678 int sw_reset(int argc
, char *argv
[])
682 die(1, "Usage: reset");
683 if (swinfo_fetch(&sw
)) {
684 die(1, "couldn't read build status: %s (try running setup)",
690 swinfo_update(&sw
, &skel
);
692 die(1, "couldn't write build status: %s", strerror(errno
));
696 /*----- That's all, folks -------------------------------------------------*/