stew

commit ad877efe03cbb52cb7c2ca61ae5a6b042044e651
parent 8aa2c5a89d869bca13c2b6f64132cc59fc0a6f64
Author: rpa <rpa@laika>
Date:   Sun,  2 Apr 2023 22:30:54 +0000

wdb/print: a pretty printer

Diffstat:
M
src/wdb/print.c
 | 
34
+++++++++++++++++++++++++---------

1 file changed, 25 insertions(+), 9 deletions(-)
diff --git a/src/wdb/print.c b/src/wdb/print.c
@@ -6,31 +6,47 @@
 	given uuids prints entries for human consumption
 */
 
-char *wdb;
+char *wdb = nil;
 char *data;
 Biobuf *bout;
 
 void
 usage(void)
 {
-	fprint(2, "usage: %s uuid [uuid ...]\n", argv0);
+	fprint(2, "usage: %s [-w dir] uuid [uuid ...]\n", argv0);
 	exits("usage");
 }
 
+int
+fetchval(char *buf, char *uuid, char *field)
+{
+	int n;
+	char *path = smprint("%s/data/%s/%s", wdb, uuid, field);
+	int fd = open(path, OREAD);
+	free(path);
+	if (fd < 0) sysfatal("%r");
+	n = read(fd, buf, 8096);
+	close(fd);
+	return n;
+}
+
 void
 printuuid(char *uuid)
 {
-	char path[1024];
-	sprint(path, "%s/%s", data, uuid);
-
-	Bprint(bout, "%s/\n", path);
-	
+	char *buf = malloc(8096);
+	int n = fetchval(buf, uuid, "name");
+	if (n > 0) buf[n - 1] = '\0';
+	Bprint(bout, "%s/\n%s\n", uuid, buf);
+	free(buf);
 }
 
 void
 main(int argc, char **argv)
 {
 	ARGBEGIN{
+	case 'w':
+		wdb = EARGF(usage());
+		break;
 	default:
 		usage();
 	}ARGEND;
@@ -39,11 +55,11 @@ main(int argc, char **argv)
 
 	bout = Bfdopen(1, OWRITE);
 
-	wdb = smprint("/usr/rpa/lib/wdb");
-	data = smprint("%s/data", wdb);
+	if (wdb == nil) wdb = smprint("/n/wdb");
 
 	int i;
 	for (i = 0; i < argc; i++) {
+		if (i > 0) Bprint(bout, "----\n");
 		printuuid(argv[i]);
 	}
 }