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[src/trunk]: src/usr.bin/make make(1): clean up Compat_RunCommand



details:   https://anonhg.NetBSD.org/src/rev/adec9016ca9e
branches:  trunk
changeset: 956770:adec9016ca9e
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sat Nov 07 14:27:16 2020 +0000

description:
make(1): clean up Compat_RunCommand

diffstat:

 usr.bin/make/compat.c |  39 +++++++++++++++++----------------------
 1 files changed, 17 insertions(+), 22 deletions(-)

diffs (82 lines):

diff -r f87320e32075 -r adec9016ca9e usr.bin/make/compat.c
--- a/usr.bin/make/compat.c     Sat Nov 07 14:18:25 2020 +0000
+++ b/usr.bin/make/compat.c     Sat Nov 07 14:27:16 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: compat.c,v 1.177 2020/11/07 14:18:25 rillig Exp $      */
+/*     $NetBSD: compat.c,v 1.178 2020/11/07 14:27:16 rillig Exp $      */
 
 /*
  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -96,7 +96,7 @@
 #include "pathnames.h"
 
 /*     "@(#)compat.c   8.2 (Berkeley) 3/19/94" */
-MAKE_RCSID("$NetBSD: compat.c,v 1.177 2020/11/07 14:18:25 rillig Exp $");
+MAKE_RCSID("$NetBSD: compat.c,v 1.178 2020/11/07 14:27:16 rillig Exp $");
 
 static GNode *curTarg = NULL;
 static pid_t compatChild;
@@ -278,9 +278,9 @@
      * If we're not supposed to execute any commands, this is as far as
      * we go...
      */
-    if (!doIt && !GNode_ShouldExecute(gn)) {
+    if (!doIt && !GNode_ShouldExecute(gn))
        return 0;
-    }
+
     DEBUG1(JOB, "Execute: '%s'\n", cmd);
 
     if (useShell) {
@@ -289,20 +289,13 @@
         * because the command contains a "meta" character.
         */
        static const char *shargv[5];
-       int shargc;
 
-       shargc = 0;
+       /* The following work for any of the builtin shell specs. */
+       int shargc = 0;
        shargv[shargc++] = shellPath;
-       /*
-        * The following work for any of the builtin shell specs.
-        */
-       if (errCheck && shellErrFlag) {
+       if (errCheck && shellErrFlag)
            shargv[shargc++] = shellErrFlag;
-       }
-       if (DEBUG(SHELL))
-               shargv[shargc++] = "-xc";
-       else
-               shargv[shargc++] = "-c";
+       shargv[shargc++] = DEBUG(SHELL) ? "-xc" : "-c";
        shargv[shargc++] = cmd;
        shargv[shargc] = NULL;
        av = shargv;
@@ -381,17 +374,19 @@
 #endif
        if (status != 0) {
            if (DEBUG(ERROR)) {
-               const char *cp;
+               const char *p = cmd;
                debug_printf("\n*** Failed target:  %s\n*** Failed command: ",
                             gn->name);
-               for (cp = cmd; *cp; ) {
-                   if (ch_isspace(*cp)) {
+
+               /* Replace runs of whitespace with a single space, to reduce
+                * the amount of whitespace for multi-line command lines. */
+               while (*p != '\0') {
+                   if (ch_isspace(*p)) {
                        debug_printf(" ");
-                       while (ch_isspace(*cp))
-                           cp++;
+                       cpp_skip_whitespace(&p);
                    } else {
-                       debug_printf("%c", *cp);
-                       cp++;
+                       debug_printf("%c", *p);
+                       p++;
                    }
                }
                debug_printf("\n");



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