allow user specified version

.gitignore

@@ -132,4 +132,5 @@ dist
 
 # MSE chicanery
 Maoist-Standard-English.zip
-template/assets/minecraft/lang/en_mse.json
+template/assets/minecraft/lang/en_mse.json
+resourcepacks

packall.sh

@@ -1,8 +1,8 @@
-./packgen.js -f -l en_au
+./packgen.js -fR -l en_au
-./packgen.js -f -l en_ca
+./packgen.js -fR -l en_ca
-./packgen.js -f -l en_gb
+./packgen.js -fR -l en_gb
-./packgen.js -f -l en_nz
+./packgen.js -fR -l en_nz
-./packgen.js -f -l en_pt
+./packgen.js -fR -l en_pt
-./packgen.js -f -l en_ud
+./packgen.js -fR -l en_ud
-./packgen.js -f -l enp
+./packgen.js -fR -l enp
-./packgen.js -f -l enws
+./packgen.js -fR -l enws

packgen.js

@@ -25,13 +25,20 @@ var argv = require("yargs/yargs")(process.argv.slice(2))
             required: false,
             type: "string",
         },
-        // TODO: version: {
+        verid: {
-        //     alias: "v",
+            alias: "v",
-        //     description: "<version> base version for pack generation",
+            description: "<version-id> base version for pack generation",
-        //     requiresArg: true,
+            requiresArg: true,
-        //     required: false,
+            required: false,
-        //     type: "string",
+            type: "string",
-        // },
+        },
+        releaseOnly: {
+            alias: "R",
+            description: "use only the *latest* release version",
+            requiresArg: false,
+            required: false,
+            type: "boolean",
+        },
         manifest: {
             alias: "m",
             description: "<url> custom manifest endpoint",
@@ -46,9 +53,22 @@ var argv = require("yargs/yargs")(process.argv.slice(2))
             required: false,
             type: "string",
         },
+        debug: {
+            alias: "d",
+            description: "verbose debug output",
+            requiresArg: false,
+            required: false,
+            type: "boolean",
+        },
     })
     .parse();
 
+if (argv.debug) {console.log(argv)}
+if (argv.verid && argv.releaseOnly) {
+    console.log('Ignoreing specified version and using latest release. (remove "releaseOnly" to use specified version)')
+    argv.verid = undefined
+}
+
 const urlReq = function (reqUrl, options, cb) {
     if (typeof options === "function") {
         cb = options;
@@ -79,7 +99,22 @@ let piston =
 
 urlReq(piston, function (body, res) {
     json = JSON.parse(body);
-    let version = json.versions[0].id; // latest version
+    var version;
+
+    if (argv.releaseOnly) {
+        version = json.versions.filter(v => v.type === 'release')[0].id // latest type ("release") version
+    } else if (argv.verid) {
+        if (json.versions.filter(v => v.id === argv.verid ).length >= 1) { // specified ("argv.verid") version
+            console.log("Found metadata for",argv.verid)
+            version = argv.verid
+        } else {
+            console.log("No metadata found for",argv.verid,"are you sure this is a valid version id?")
+            process.exit(1);
+        }
+    } else {
+        version = json.versions[0].id; // latest type ("any") version
+    }
+
     let resources =
         argv.resources || "https://resources.download.minecraft.net/";
     let baselang = argv.lang || "en_gb";
@@ -99,10 +134,16 @@ urlReq(piston, function (body, res) {
 
     console.log(`Using base language "${baselang}" from version (${version})`);
 
-    urlReq(json.versions[1].url, function (body, res) {
+    if (argv.debug) {console.log(version,json.versions.filter(v => v.id === version )[0].url)}
+
+    urlReq(json.versions.filter(v => v.id === version )[0].url, function (body, res) {
         json = JSON.parse(body);
         urlReq(json.assetIndex.url, function (body, res) {
             json = JSON.parse(body);
+            if (json.objects[`minecraft/lang/${baselang}.json`] === undefined) {
+                console.log("This version has no/outdated language file (only ≥1.13 )")
+                process.exit(1);
+            }
             hash = json.objects[`minecraft/lang/${baselang}.json`].hash;
             urlReq(
                 resources + `${hash.substring(0, 2)}/${hash}`,
@@ -132,6 +173,7 @@ urlReq(piston, function (body, res) {
 
                     var mcmeta = __dirname + "/template/pack.mcmeta";
                     var mcmeta_data = JSON.parse(fs.readFileSync(mcmeta));
+                    var mcmeta_data_old = fs.readFileSync(mcmeta);
                     mcmeta_data.pack.description = mcmeta_template;
 
                     fs.writeFileSync(mcmeta, JSON.stringify(mcmeta_data));
@@ -145,8 +187,10 @@ urlReq(piston, function (body, res) {
                             console.log(
                                 "en_mse.json generated, creating pack and compressing.",
                             );
+                            // Make sure resourcepacks folder exists
+                            if (!fs.existsSync(__dirname +"/resourcepacks/")) {fs.mkdirSync(__dirname +"/resourcepacks/")}
                             const output = fs.createWriteStream(
-                                __dirname + `/${filename}.zip`,
+                                __dirname + `/resourcepacks/${filename}.zip`,
                             );
                             const archive = archiver("zip", {
                                 zlib: { level: 9 }, // Sets the compression level.
@@ -159,7 +203,7 @@ urlReq(piston, function (body, res) {
                                     "language-pack archive generated with a filesize of " +
                                         archive.pointer() +
                                         " bytes" +
-                                        `\n(./${filename}.zip)`,
+                                        `\n(./resourcepacks/${filename}.zip)`,
                                 );
                             });
                             archive.pipe(output);
@@ -167,6 +211,8 @@ urlReq(piston, function (body, res) {
                             archive.finalize();
                         },
                     );
+                    // Revert template, yeah not a great way of doing it i know. :(
+                    fs.writeFileSync(mcmeta, mcmeta_data_old);
                 },
             );
         });