Add -D macro option to varnishtest

bin/varnishtest/vtc.c

@@ -76,6 +76,8 @@ struct macro {
 
 static VTAILQ_HEAD(,macro) macro_list = VTAILQ_HEAD_INITIALIZER(macro_list);
 
+struct _extmacro_list extmacro_list = VTAILQ_HEAD_INITIALIZER(extmacro_list);
+
 static pthread_mutex_t		macro_mtx;
 
 static void
@@ -479,6 +481,7 @@ exec_file(const char *fn, const char *script, const char *tmpdir,
 	char *cwd, *p;
 	char topbuild[BUFSIZ];
 	FILE *f;
+	struct extmacro *m;
 
 	vtc_loginit(logbuf, loglen);
 	vltop = vtc_logopen("top");
@@ -501,6 +504,10 @@ exec_file(const char *fn, const char *script, const char *tmpdir,
 	AZ(chdir(tmpdir));
 	macro_def(vltop, NULL, "tmpdir", tmpdir);
 
+	/* Apply extmacro definitions */
+	VTAILQ_FOREACH(m, &extmacro_list, list)
+		macro_def(vltop, NULL, m->name, m->val);
+
 	/* Drop file to tell what was going on here */
 	f = fopen("INFO", "w");
 	AN(f);

bin/varnishtest/vtc.h

@@ -34,6 +34,7 @@
 #ifdef HAVE_PTHREAD_NP_H
 #include <pthread_np.h>
 #endif
+#include "vqueue.h"
 
 struct vsb;
 struct vtclog;
@@ -49,6 +50,15 @@ struct cmds {
 	cmd_f		*cmd;
 };
 
+struct extmacro {
+	VTAILQ_ENTRY(extmacro)	list;
+	char			*name;
+	char			*val;
+};
+
+VTAILQ_HEAD(_extmacro_list, extmacro);
+extern struct _extmacro_list extmacro_list;
+
 void parse_string(char *buf, const struct cmds *cmd, void *priv,
     struct vtclog *vl);
 

bin/varnishtest/vtc_main.c

@@ -91,6 +91,32 @@ static int vtc_good;
 static int vtc_fail;
 static int leave_temp;
 
+/**********************************************************************
+ * Parse a -D option argument into a name/val pair, and insert
+ * into extmacro list
+ */
+
+int
+parse_D_opt(char *arg)
+{
+	int i;
+	char *p, *q;
+	struct extmacro *m;
+
+	p = arg;
+	q = strchr(p, '=');
+	if (!q)
+		return (0);
+	*q++ = '\0';
+	m = calloc(sizeof *m, 1);
+	AN(m);
+	REPLACE(m->name, p);
+	REPLACE(m->val, q);
+	VTAILQ_INSERT_TAIL(&extmacro_list, m, list);
+
+	return (1);
+}
+
 /**********************************************************************
  * Read a file into memory
  */
@@ -130,6 +156,7 @@ usage(void)
 {
 	fprintf(stderr, "usage: varnishtest [options] file ...\n");
 #define FMT "    %-28s # %s\n"
+	fprintf(stderr, FMT, "-D name=val", "Define macro for use in scripts");
 	fprintf(stderr, FMT, "-j jobs", "Run this many tests in parallel");
 	fprintf(stderr, FMT, "-k", "Continue on test failure");
 	fprintf(stderr, FMT, "-l", "Leave /tmp/vtc.* if test fails");
@@ -310,8 +337,15 @@ main(int argc, char * const *argv)
 
 	setbuf(stdout, NULL);
 	setbuf(stderr, NULL);
-	while ((ch = getopt(argc, argv, "j:klLn:qt:v")) != -1) {
+	while ((ch = getopt(argc, argv, "D:j:klLn:qt:v")) != -1) {
 		switch (ch) {
+		case 'D':
+			if (!parse_D_opt(optarg)) {
+				fprintf(stderr, "Cannot parse D opt '%s'\n", 
+					optarg);
+				exit (2);
+			}
+			break;
 		case 'j':
 			npar = strtoul(optarg, NULL, 0);
 			break;