1 files changed, 93 insertions, 0 deletions
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..8ac03ef
--- /dev/null
+++ b/main.go
@@ -0,0 +1,93 @@
+package main
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"strings"
+)
+
+var (
+	conf_f         = flag.String("c", "", "Path to the configuration file.")
+	template_dir_f = flag.String("d", ".", "Template directory.")
+	template_f     = flag.String("f", "", "Templates to render, a comma separated list.")
+	ext_f          = flag.String("e", ".tmpl", "Extension of template files")
+	is_html_f      = flag.Bool("html", false, "Enable HTML context sensitivy.")
+)
+
+func main() {
+	flag.Parse()
+
+	if *template_f == "" {
+		fmt.Println("Please provide a template to render with the -f option.")
+		os.Exit(1)
+	}
+
+	// Reading config from environment if not set (case insensitive)
+	*conf_f = GetVarFromEnv(*conf_f, "config")
+	*template_dir_f = GetVarFromEnv(*template_dir_f, "template_directory")
+	*template_f = GetVarFromEnv(*template_f, "templates")
+
+	// Read configuration file with the template data
+	data := NewConfiguration(*conf_f)
+
+	// Splits the templates
+	var templates []string
+	if strings.Contains(*template_f, ",") {
+		templates = strings.Split(*template_f, ",")
+	} else {
+		templates = strings.Split(*template_f, " ")
+	}
+
+	// Clean out the filenames if they start with the template dirname (shell globbing)
+	for index, template := range templates {
+		if strings.HasPrefix(template, *template_dir_f+"/") {
+			templates[index] = strings.TrimPrefix(template, *template_dir_f+"/")
+		} else {
+			templates[index] = strings.TrimPrefix(template, *template_dir_f)
+		}
+	}
+
+	// Enable HTML context sensitivy on demand
+	if *is_html_f {
+		ParseHTML(templates, data)
+	} else {
+		ParseText(templates, data)
+	}
+}
+
+func NewConfiguration(path string) interface{} {
+	if path == "" {
+		return nil
+	}
+	file, err := os.Open(path)
+	if err != nil {
+		log.Print("INFO: Error opening config file. Is it a valid file?")
+		return nil
+	}
+
+	fi, err := file.Stat()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	data := make([]byte, int64(fi.Size()))
+	file.Read(data)
+
+	var json_data interface{}
+	json.Unmarshal(data, &json_data)
+
+	return json_data
+}
+
+func GetVarFromEnv(s, key string) string {
+	if s == "" {
+		s = os.Getenv(key)
+	}
+	if s == "" {
+		s = os.Getenv(strings.ToUpper(key))
+	}
+	return s
+}