feat(flag): Get flags where to read/save from/to

Users can change file name and output directory.

deno.json

@@ -1,28 +1,21 @@
 {
   "$schema": "https://deno.land/x/deno/cli/schemas/config-file.v1.json",
   "fmt": {
-    "exclude": [
-      "LICENSE",
-      ".github/**/*.md"
-    ]
+    "exclude": ["LICENSE", ".github/**/*.md"]
   },
   "test": {
-    "include": [
-      "src/",
-      "test/"
-    ]
+    "include": ["src/", "test/"]
   },
   "tasks": {
     "clean": "deno fmt && deno cache --lock-write ./**/*.ts",
     "gen": "deno run --allow-read --allow-write ./src/main.ts",
     "test": "deno test --allow-read --allow-write"
   },
   "imports": {
-    "assert": "https://deno.land/std@0.215.0/assert/mod.ts",
+    "assert": "https://deno.land/std@0.216.0/assert/mod.ts",
     "path": "https://deno.land/[email protected]/path/mod.ts",
     "toml": "https://deno.land/[email protected]/toml/mod.ts",
-    "path": "https://deno.land/[email protected]/path/mod.ts",
-    "toml": "https://deno.land/[email protected]/toml/mod.ts",
+    "parse_args": "https://deno.land/[email protected]/cli/parse_args.ts",
     "case": "https://deno.land/x/[email protected]/mod.ts",
     "xml": "https://deno.land/x/[email protected]/mod.ts"
   }

src/main.ts

@@ -1,9 +1,21 @@
+import { parseArgs } from "parse_args";
+import { resolve } from "path";
 import { readTOML, writeXML } from "./libs/mod.ts";
 import { Lists } from "./types/mod.ts";
 
+const flags = parseArgs(Deno.args, {
+  string: ["feeds", "output"],
+  default: {
+    feeds: "./feeds.toml",
+    output: "./outputs",
+  },
+});
+flags.feeds = resolve(flags.feeds);
+flags.output = resolve(flags.output);
+
 try {
-  const feeds: Lists = await readTOML("feeds.toml");
-  await writeXML(feeds, "outputs");
+  const feeds: Lists = await readTOML(flags.feeds);
+  await writeXML(feeds, flags.output);
 } catch (error) {
   console.error(`🚨 ${error.message}`);
   Deno.exit(1);