added script to easily add games to config.jsonc

Author: avscs

add-game-entry.js

@@ -0,0 +1,106 @@
+import { exit } from 'process';
+import { readFileSync, existsSync, writeFileSync } from 'fs';
+import { input } from '@inquirer/prompts';
+
+if (!existsSync('config.jsonc')) {
+    console.log('config.jsonc not found! Are you in the right directory?');
+    exit(1);
+}
+
+(async () => {
+    const gameName = await input({ message: 'Enter the display name of the game\n>' });
+    const gamePath = await input({ message: 'Enter the path from games directory to the game:\n>' });
+    const gameAliases = await input({ message: 'Enter comma separated list of aliases for the game:\n>' });
+    const gameAliasesList = gameAliases.split(',');
+    const gameCategories = await input({ message: 'Enter comma separated list of categories for the game:\n>' });
+    const gameCategoriesList = gameCategories.split(',');
+    const newKey = `"${gameName}": {
+            "path": "${gamePath}",
+            "aliases": [${gameAliasesList.toString()}],
+            "categories": [${gameCategoriesList.toString()}]
+        },
+        `;
+    let jsonc = readFileSync('config.jsonc', 'utf-8');
+
+    // searching only in games key value
+    let i = jsonc.search(/"games":\s*{/);
+    const end = jsonc.slice(i).search(/}[,\s]*}/) + i;
+    i = jsonc.slice(i).indexOf('{') + i + 1;
+
+    let curlyBracketDepth = 0;
+    while (i < end) {
+        const char = jsonc.charAt(i);
+        const nextChar = jsonc.charAt(i + 1);
+        // skipping comments
+        if (char === '/') {
+            if (nextChar === '/') {
+                i = jsonc.indexOf('\n', i);
+                continue;
+            } else if (nextChar === '*') {
+                i = jsonc.indexOf('*/', i + 2) + 1;
+                continue;
+            }
+        } else if (char === '"' || char === "'") {
+            // nextJump is index of next unescaped quote (single or double depending on starting quote)
+            let nextJump;
+            if (char === '"') {
+                nextJump = jsonc.indexOf('"', i + 1);
+                while (jsonc.charAt(nextJump - 1) === '\\') nextJump = jsonc.indexOf('"', nextJump + 1);
+            } else {
+                nextJump = jsonc.indexOf("'", i + 1);
+                while (jsonc.charAt(nextJump - 1) === '\\') nextJump = jsonc.indexOf("'", nextJump + 1);
+            }
+            if (nextJump === -1 || nextJump > end) {
+                console.log('Error while parsing file: Invalid JSONC data');
+                exit(1);
+            }
+
+            if (curlyBracketDepth === 0) {
+                const selectedGameName = jsonc.substring(i + 1, nextJump);
+                const comparison = selectedGameName.localeCompare(gameName);
+
+                // selectedGameName first in alphanumerical order
+                if (comparison === -1) {
+                    i = nextJump + 1;
+                    continue;
+                }
+
+                if (comparison === 0) {
+                    console.log(`Error while parsing file: game "${gameName}" is already added as an entry.`);
+                    exit(1);
+                }
+
+                if (comparison === 1) {
+                    jsonc = jsonc.substring(0, i) + newKey + jsonc.substring(i);
+                    writeFileSync('config.jsonc', jsonc);
+                    console.log('Saved to config.jsonc!');
+                    exit(0);
+                }
+
+                // comparison only returns 1,0,-1 so the code should not reach this point
+                console.log('Error while parsing file: comparison failed');
+                exit(1);
+            }
+
+            i = nextJump;
+        } else if (char === '{') {
+            ++curlyBracketDepth;
+        } else if (char === '}') {
+            --curlyBracketDepth;
+        }
+
+        ++i;
+    }
+
+    // now i = end, no error occured but game has not been added to config data
+    // game display name might be last in alphanumerical order so append the entry to the end
+    jsonc =
+        jsonc.substring(0, end + 1) +
+        ',\n        ' +
+        newKey.substring(0, newKey.lastIndexOf('\n')) +
+        jsonc.substring(end + 1);
+
+    writeFileSync('config.jsonc', jsonc);
+    console.log('Saved to config.jsonc!');
+    exit(0);
+})();