[src/trunk]: src/usr.bin/make make(1): remove duplicate code for job output

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

details:   https://anonhg.NetBSD.org/src/rev/92244af2b4de
branches:  trunk
changeset: 946764:92244af2b4de
user:      rillig <rillig%NetBSD.org@localhost>
date:      Mon Dec 07 22:55:01 2020 +0000

description:
make(1): remove duplicate code for job output

diffstat:

 usr.bin/make/job.c |  49 ++++++++++++++++++-------------------------------
 1 files changed, 18 insertions(+), 31 deletions(-)

diffs (124 lines):

diff -r 84fd33e4bd4c -r 92244af2b4de usr.bin/make/job.c
--- a/usr.bin/make/job.c        Mon Dec 07 22:47:03 2020 +0000
+++ b/usr.bin/make/job.c        Mon Dec 07 22:55:01 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: job.c,v 1.339 2020/12/07 22:47:03 rillig Exp $ */
+/*     $NetBSD: job.c,v 1.340 2020/12/07 22:55:01 rillig Exp $ */
 
 /*
  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -143,7 +143,7 @@
 #include "trace.h"
 
 /*     "@(#)job.c      8.2 (Berkeley) 3/19/94" */
-MAKE_RCSID("$NetBSD: job.c,v 1.339 2020/12/07 22:47:03 rillig Exp $");
+MAKE_RCSID("$NetBSD: job.c,v 1.340 2020/12/07 22:55:01 rillig Exp $");
 
 /* A shell defines how the commands are run.  All commands for a target are
  * written into a single file, which is then given to the shell to execute
@@ -389,8 +389,6 @@
 static void clearfd(Job *);
 static int readyfd(Job *);
 
-static GNode *lastNode;                /* The node for which output was most recently
-                                * produced. */
 static char *targPrefix = NULL; /* To identify a job change in the output. */
 static Job tokenWaitJob;       /* token wait pseudo-job */
 
@@ -408,8 +406,15 @@
 static void JobSigReset(void);
 
 static void
-Message(GNode *gn)
+SwitchOutputTo(GNode *gn)
 {
+       /* The node for which output was most recently produced. */
+       static GNode *lastNode = NULL;
+
+       if (gn == lastNode)
+               return;
+       lastNode = gn;
+
        if (opts.maxJobs != 1 && targPrefix != NULL && targPrefix[0] != '\0')
                (void)fprintf(stdout, "%s %s ---\n", targPrefix, gn->name);
 }
@@ -1004,10 +1009,7 @@
            DEBUG2(JOB, "Process %d [%s] exited.\n",
                   job->pid, job->node->name);
            if (WEXITSTATUS(status) != 0) {
-               if (job->node != lastNode) {
-                   Message(job->node);
-                   lastNode = job->node;
-               }
+               SwitchOutputTo(job->node);
 #ifdef USE_META
                if (useMeta) {
                    meta_job_error(job, job->node, job->flags, WEXITSTATUS(status));
@@ -1027,18 +1029,12 @@
                    PrintOnError(job->node, NULL);
                }
            } else if (DEBUG(JOB)) {
-               if (job->node != lastNode) {
-                   Message(job->node);
-                   lastNode = job->node;
-               }
+               SwitchOutputTo(job->node);
                (void)printf("*** [%s] Completed successfully\n",
                                job->node->name);
            }
        } else {
-           if (job->node != lastNode) {
-               Message(job->node);
-               lastNode = job->node;
-           }
+           SwitchOutputTo(job->node);
            (void)printf("*** [%s] Signal %d\n",
                        job->node->name, WTERMSIG(status));
            if (deleteOnError) {
@@ -1264,10 +1260,8 @@
      * banner with their name in it never appears). This is an attempt to
      * provide that feedback, even if nothing follows it.
      */
-    if ((lastNode != job->node) && !(job->flags & JOB_SILENT)) {
-       Message(job->node);
-       lastNode = job->node;
-    }
+    if (!(job->flags & JOB_SILENT))
+       SwitchOutputTo(job->node);
 
     /* No interruptions until this job is on the `jobs' list */
     JobSigLock(&mask);
@@ -1559,10 +1553,7 @@
         * Not executing anything -- just print all the commands to stdout
         * in one fell swoop. This will still set up job->tailCmds correctly.
         */
-       if (lastNode != gn) {
-           Message(gn);
-           lastNode = gn;
-       }
+       SwitchOutputTo(gn);
        job->cmdFILE = stdout;
        /*
         * Only print the commands if they're ok, but don't die if they're
@@ -1778,10 +1769,8 @@
             * our own free will.
             */
            if (*cp != '\0') {
-               if (!opts.beSilent && job->node != lastNode) {
-                   Message(job->node);
-                   lastNode = job->node;
-               }
+               if (!opts.beSilent)
+                   SwitchOutputTo(job->node);
 #ifdef USE_META
                if (useMeta) {
                    meta_job_output(job, cp, gotNL ? "\n" : "");
@@ -2080,8 +2069,6 @@
     aborting = ABORT_NONE;
     job_errors = 0;
 
-    lastNode = NULL;
-
     /*
      * There is a non-zero chance that we already have children.
      * eg after 'make -f- <<EOF'