[src/trunk]: src/usr.bin/make make(1): reduce indentation in Compat_RunCommand

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/bec07884728e
branches:  trunk
changeset: 938666:bec07884728e
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sun Sep 13 06:36:54 2020 +0000

description:
make(1): reduce indentation in Compat_RunCommand

The while (1) had been there since the initial import on 1993-03-21, and
in all that time there had never been a good reason for having it.

diffstat:

 usr.bin/make/compat.c |  129 ++++++++++++++++++++++++-------------------------
 1 files changed, 62 insertions(+), 67 deletions(-)

diffs (171 lines):

diff -r deca3084a76d -r bec07884728e usr.bin/make/compat.c
--- a/usr.bin/make/compat.c     Sun Sep 13 06:15:29 2020 +0000
+++ b/usr.bin/make/compat.c     Sun Sep 13 06:36:54 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: compat.c,v 1.143 2020/09/12 15:10:55 rillig Exp $      */
+/*     $NetBSD: compat.c,v 1.144 2020/09/13 06:36:54 rillig Exp $      */
 
 /*
  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -70,14 +70,14 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: compat.c,v 1.143 2020/09/12 15:10:55 rillig Exp $";
+static char rcsid[] = "$NetBSD: compat.c,v 1.144 2020/09/13 06:36:54 rillig Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "@(#)compat.c   8.2 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: compat.c,v 1.143 2020/09/12 15:10:55 rillig Exp $");
+__RCSID("$NetBSD: compat.c,v 1.144 2020/09/13 06:36:54 rillig Exp $");
 #endif
 #endif /* not lint */
 #endif
@@ -390,85 +390,80 @@
     /*
      * The child is off and running. Now all we can do is wait...
      */
-    while (1) {
-
-       while ((retstat = wait(&reason)) != cpid) {
-           if (retstat > 0)
-               JobReapChild(retstat, reason, FALSE); /* not ours? */
-           if (retstat == -1 && errno != EINTR) {
-               break;
-           }
+    while ((retstat = wait(&reason)) != cpid) {
+       if (retstat > 0)
+           JobReapChild(retstat, reason, FALSE); /* not ours? */
+       if (retstat == -1 && errno != EINTR) {
+           break;
        }
+    }
 
-       if (retstat > -1) {
-           if (WIFSTOPPED(reason)) {
-               status = WSTOPSIG(reason);              /* stopped */
-           } else if (WIFEXITED(reason)) {
-               status = WEXITSTATUS(reason);           /* exited */
+    if (retstat < 0)
+       Fatal("error in wait: %d: %s", retstat, strerror(errno));
+
+    if (WIFSTOPPED(reason)) {
+       status = WSTOPSIG(reason);              /* stopped */
+    } else if (WIFEXITED(reason)) {
+       status = WEXITSTATUS(reason);           /* exited */
 #if defined(USE_META) && defined(USE_FILEMON_ONCE)
-               if (useMeta) {
-                   meta_cmd_finish(NULL);
-               }
+       if (useMeta) {
+           meta_cmd_finish(NULL);
+       }
 #endif
-               if (status != 0) {
-                   if (DEBUG(ERROR)) {
-                       fprintf(debug_file, "\n*** Failed target:  %s\n*** Failed command: ",
-                           gn->name);
-                       for (cp = cmd; *cp; ) {
-                           if (ch_isspace(*cp)) {
-                               fprintf(debug_file, " ");
-                               while (ch_isspace(*cp))
-                                   cp++;
-                           } else {
-                               fprintf(debug_file, "%c", *cp);
-                               cp++;
-                           }
-                       }
-                       fprintf(debug_file, "\n");
+       if (status != 0) {
+           if (DEBUG(ERROR)) {
+               fprintf(debug_file, "\n*** Failed target:  %s\n*** Failed command: ",
+                   gn->name);
+               for (cp = cmd; *cp; ) {
+                   if (ch_isspace(*cp)) {
+                       fprintf(debug_file, " ");
+                       while (ch_isspace(*cp))
+                           cp++;
+                   } else {
+                       fprintf(debug_file, "%c", *cp);
+                       cp++;
                    }
-                   printf("*** Error code %d", status);
                }
-           } else {
-               status = WTERMSIG(reason);              /* signaled */
-               printf("*** Signal %d", status);
+               fprintf(debug_file, "\n");
            }
+           printf("*** Error code %d", status);
+       }
+    } else {
+       status = WTERMSIG(reason);              /* signaled */
+       printf("*** Signal %d", status);
+    }
 
 
-           if (!WIFEXITED(reason) || (status != 0)) {
-               if (errCheck) {
+    if (!WIFEXITED(reason) || (status != 0)) {
+       if (errCheck) {
 #ifdef USE_META
-                   if (useMeta) {
-                       meta_job_error(NULL, gn, 0, status);
-                   }
+           if (useMeta) {
+               meta_job_error(NULL, gn, 0, status);
+           }
 #endif
-                   gn->made = ERROR;
-                   if (keepgoing) {
-                       /*
-                        * Abort the current target, but let others
-                        * continue.
-                        */
-                       printf(" (continuing)\n");
-                   } else {
-                       printf("\n");
-                   }
-                   if (deleteOnError) {
-                           CompatDeleteTarget(gn);
-                   }
-               } else {
-                   /*
-                    * Continue executing commands for this target.
-                    * If we return 0, this will happen...
-                    */
-                   printf(" (ignored)\n");
-                   status = 0;
-               }
+           gn->made = ERROR;
+           if (keepgoing) {
+               /*
+                * Abort the current target, but let others
+                * continue.
+                */
+               printf(" (continuing)\n");
+           } else {
+               printf("\n");
            }
-           break;
+           if (deleteOnError) {
+                   CompatDeleteTarget(gn);
+           }
        } else {
-           Fatal("error in wait: %d: %s", retstat, strerror(errno));
-           /*NOTREACHED*/
+           /*
+            * Continue executing commands for this target.
+            * If we return 0, this will happen...
+            */
+           printf(" (ignored)\n");
+           status = 0;
        }
     }
+
     free(cmdStart);
     compatChild = 0;
     if (compatSigno) {