From 8551ba212214a075b6dbbb8081465b711274df79 Mon Sep 17 00:00:00 2001
From: Nathan Wagner <nw@hydaspes.if.org>
Date: Sun, 23 Sep 2018 01:41:51 +0000
Subject: [PATCH] use ZPMDB as package database if needed

exit non-zero if findpkg doesn't find a package
---
 zpm-findpkg.c | 29 ++++++++++++++++-------------
 1 file changed, 16 insertions(+), 13 deletions(-)

diff --git a/zpm-findpkg.c b/zpm-findpkg.c
index a376fae..95085d5 100644
--- a/zpm-findpkg.c
+++ b/zpm-findpkg.c
@@ -4,6 +4,8 @@
 
 #include "zpm.h"
 
+static int found = 0;
+
 static int prow(void *f, int ncols, char **vals, char **cols) {
 	FILE *out = f;
 	int i;
@@ -16,6 +18,7 @@ static int prow(void *f, int ncols, char **vals, char **cols) {
 		fprintf(out, "%s", vals[i]);
 	}
 	fprintf(out, "\n");
+	found++;
 	return 0;
 }
 
@@ -66,6 +69,7 @@ void parse_package(char *pstr, char *name, char *ver, int *rel) {
 
 int main(int ac, char **av){
 	struct zpm pkg;
+	char *dbfile, *pkgstr;
 	char *select = "select package, version, release, package||'-'||version||'-'||release as pkgid from packages";
 	char *group = "group by package having max( version||'-'||release collate vercmp) order by length(package), package, version||'-'||release collate vercmp";
 
@@ -78,20 +82,26 @@ int main(int ac, char **av){
 		return 1;
 	}
 
+	dbfile = getenv("ZPMDB");
+
+	if (ac > 1) {
+		dbfile = av[1];
+	}
+
 	/* given a package name, get the packages */
 	/* no package name, get all */
 
-	if (zpm_open(&pkg, av[1])) {
+	if (zpm_open(&pkg, dbfile)) {
 		char *errmsg;
-//		char where[1024] = "";
 
-		/* TODO allow more args to nail down version and release */
-		if (ac >= 3) {
+		if (ac >= 2) {
 			int release;
 			char version[32];
 			char package[32];
 
-			parse_package(av[2], package, version, &release);
+			pkgstr = av[2];
+
+			parse_package(pkgstr, package, version, &release);
 			if (release != -1) {
 				/* all three */
 			sprintf(sql, "%s where package = '%s' and version = "
@@ -111,15 +121,8 @@ int main(int ac, char **av){
 			sprintf(sql, "%s %s;", select, group);
 		}
 
-		/* install a collation function */
-		zpm_addvercmp(&pkg);
-		/* sqlite seems to need the columns in the result to
-		 * do the sort right */
-//		zpm_exec(&pkg, "select package, version, release, package||'-'||version||'-'||release as pkgid from packages order by package, version collate vercmp, cast(release as integer)", prow, stdout, &errmsg);
-//		fprintf(stdout, "\n");	
-
 		zpm_exec(&pkg, sql, prow, stdout, &errmsg);
 	}
 	zpm_close(&pkg);
-	return 0;
+	return found ? 0 : 1;
 }
-- 
2.40.0