[src/trunk]: src/usr.bin/make make(1): extract InitVpath from main

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

details:   https://anonhg.NetBSD.org/src/rev/fb9467660419
branches:  trunk
changeset: 945358:fb9467660419
user:      rillig <rillig%NetBSD.org@localhost>
date:      Tue Oct 27 07:44:43 2020 +0000

description:
make(1): extract InitVpath from main

diffstat:

 usr.bin/make/main.c |  67 ++++++++++++++++++++++++++++------------------------
 1 files changed, 36 insertions(+), 31 deletions(-)

diffs (102 lines):

diff -r ad8321157eb0 -r fb9467660419 usr.bin/make/main.c
--- a/usr.bin/make/main.c       Tue Oct 27 07:38:08 2020 +0000
+++ b/usr.bin/make/main.c       Tue Oct 27 07:44:43 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: main.c,v 1.399 2020/10/27 07:38:08 rillig Exp $        */
+/*     $NetBSD: main.c,v 1.400 2020/10/27 07:44:43 rillig Exp $        */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -118,7 +118,7 @@
 #include "trace.h"
 
 /*     "@(#)main.c     8.3 (Berkeley) 3/19/94" */
-MAKE_RCSID("$NetBSD: main.c,v 1.399 2020/10/27 07:38:08 rillig Exp $");
+MAKE_RCSID("$NetBSD: main.c,v 1.400 2020/10/27 07:44:43 rillig Exp $");
 #if defined(MAKE_NATIVE) && !defined(lint)
 __COPYRIGHT("@(#) Copyright (c) 1988, 1989, 1990, 1993 "
            "The Regents of the University of California.  "
@@ -1140,6 +1140,38 @@
        /* XXX: sysMkPath is not freed */
 }
 
+/*
+ * For compatibility, look at the directories in the VPATH variable
+ * and add them to the search path, if the variable is defined. The
+ * variable's value is in the same format as the PATH environment
+ * variable, i.e. <directory>:<directory>:<directory>...
+ */
+static void
+InitVpath(void)
+{
+       char *vpath, savec, *path;
+       if (!Var_Exists("VPATH", VAR_CMD))
+               return;
+
+       (void)Var_Subst("${VPATH}", VAR_CMD, VARE_WANTRES, &vpath);
+       /* TODO: handle errors */
+       path = vpath;
+       do {
+               char *cp;
+               /* skip to end of directory */
+               for (cp = path; *cp != ':' && *cp != '\0'; cp++)
+                       continue;
+               /* Save terminator character so know when to stop */
+               savec = *cp;
+               *cp = '\0';
+               /* Add directory to search path */
+               (void)Dir_AddDir(dirSearchPath, path);
+               *cp = savec;
+               path = cp + 1;
+       } while (savec == ':');
+       free(vpath);
+}
+
 /*-
  * main --
  *     The main function, for obvious reasons. Initializes variables
@@ -1162,7 +1194,7 @@
 {
        Boolean outOfDate;      /* FALSE if all targets up to date */
        struct stat sa;
-       char *p1, *path;
+       char *p1;
        char mdpath[MAXPATHLEN];
        const char *machine;
        const char *machine_arch;
@@ -1470,34 +1502,7 @@
        if (!opts.printVars)
            Main_ExportMAKEFLAGS(TRUE); /* initial export */
 
-
-       /*
-        * For compatibility, look at the directories in the VPATH variable
-        * and add them to the search path, if the variable is defined. The
-        * variable's value is in the same format as the PATH envariable, i.e.
-        * <directory>:<directory>:<directory>...
-        */
-       if (Var_Exists("VPATH", VAR_CMD)) {
-               char *vpath, savec;
-
-               (void)Var_Subst("${VPATH}", VAR_CMD, VARE_WANTRES, &vpath);
-               /* TODO: handle errors */
-               path = vpath;
-               do {
-                       char *cp;
-                       /* skip to end of directory */
-                       for (cp = path; *cp != ':' && *cp != '\0'; cp++)
-                               continue;
-                       /* Save terminator character so know when to stop */
-                       savec = *cp;
-                       *cp = '\0';
-                       /* Add directory to search path */
-                       (void)Dir_AddDir(dirSearchPath, path);
-                       *cp = savec;
-                       path = cp + 1;
-               } while (savec == ':');
-               free(vpath);
-       }
+       InitVpath();
 
        /*
         * Now that all search paths have been read for suffixes et al, it's