feat: add the --conf command

Add the `--conf` command, which dipslay's the current `cheat`
configuration file path.

cmd/cheat/cmd_conf.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/cheat/cheat/internal/config"
+)
+
+func cmdConf(opts map[string]interface{}, conf config.Config) {
+	fmt.Println(conf.Path)
+}

cmd/cheat/docopt.txt

@@ -15,6 +15,7 @@ Options:
   -T --tags               List all tags in use
   -v --version            Print the version number
   --rm=<cheatsheet>       Remove (delete) <cheatsheet>
+  --conf                  Display the config file path
 
 Examples:
 
@@ -53,3 +54,6 @@ Examples:
 
   To remove (delete) the foo/bar cheatsheet:
     cheat --rm foo/bar
+
+  To view the configuration file path:
+	cheat --conf

cmd/cheat/main.go

@@ -120,6 +120,9 @@ func main() {
 	var cmd func(map[string]interface{}, config.Config)
 
 	switch {
+	case opts["--conf"].(bool):
+		cmd = cmdConf
+
 	case opts["--directories"].(bool):
 		cmd = cmdDirectories
 

cmd/cheat/str_usage.go

@@ -24,6 +24,7 @@ Options:
   -T --tags               List all tags in use
   -v --version            Print the version number
   --rm=<cheatsheet>       Remove (delete) <cheatsheet>
+  --conf                  Display the config file path
 
 Examples:
 
@@ -62,5 +63,8 @@ Examples:
 
   To remove (delete) the foo/bar cheatsheet:
     cheat --rm foo/bar
+
+  To view the configuration file path:
+	cheat --conf
 `)
 }