Lower required Go version to 1.20

README.md

@@ -58,7 +58,7 @@ Download the binaries from the most recent release assets on Github.
 
 ### Build from sources
 
-- A recent version of **Go** (1.21+) should be installed. [Go installation](https://go.dev/doc/install)
+- A recent version of **Go** (1.20+) should be installed. [Go installation](https://go.dev/doc/install)
 
 - Clone the repository `git clone https://github.com/csaf-poc/csaf_distribution.git `
 

cmd/csaf_downloader/forwarder.go

@@ -57,7 +57,10 @@ type forwarder struct {
 
 // newForwarder creates a new forwarder.
 func newForwarder(cfg *config) *forwarder {
-	queue := max(1, cfg.ForwardQueue)
+	queue := cfg.ForwardQueue
+	if queue < 1 {
+		queue = 1
+	}
 	return &forwarder{
 		cfg:  cfg,
 		cmds: make(chan func(*forwarder), queue),

examples/purls_searcher/main.go

@@ -70,7 +70,9 @@ func newURLFinder(ids []string) *urlFinder {
 
 // clear resets the url finder after a run on an advisory.
 func (uf *urlFinder) clear() {
-	clear(uf.urls)
+	for i := range uf.urls {
+		uf.urls[i] = uf.urls[i][:0]
+	}
 }
 
 // dumpURLs dumps the found URLs to stdout.

go.mod

@@ -1,6 +1,6 @@
 module github.com/csaf-poc/csaf_distribution/v3
 
-go 1.21
+go 1.20
 
 require (
 	github.com/BurntSushi/toml v1.3.2