all: return error instead of call log.Fatal on non main packages

The library, non-main packages, should never call Fatal or panic,
its up to the main package or the caller on how to handle it.

While at it, fix the returned error to use log prefix and the error
value, remove the "ciigo: " prefix.

1 files changed, 9 insertions, 2 deletions

diff --git a/internal/cmd/generate/main.go b/internal/cmd/generate/main.go
index 3e9dd8d..914e9a1 100644
--- a/internal/cmd/generate/main.go
+++ b/internal/cmd/generate/main.go
@@ -6,7 +6,11 @@
 
 package main
 
-import "git.sr.ht/~shulhan/ciigo"
+import (
+	"log"
+
+	"git.sr.ht/~shulhan/ciigo"
+)
 
 func main() {
 	opts := ciigo.GenerateOptions{
@@ -16,5 +20,8 @@ func main() {
 		GenVarName:     "ciigoFS",
 		GenGoFileName:  "cmd/ciigo-example/static.go",
 	}
-	ciigo.Generate(&opts)
+	err := ciigo.Generate(&opts)
+	if err != nil {
+		log.Fatal(err)
+	}
 }