Add spare ABI urls

typescript/base/.eslintrc.cjs

@@ -1,20 +1,40 @@
 /* eslint-env node */
 module.exports = {
-    extends: [
-        'eslint:all',
-        'eslint:recommended',
-        'plugin:@typescript-eslint/recommended'
+    "extends": [
+        "eslint:all",
+        "eslint:recommended",
+        "plugin:@typescript-eslint/recommended"
     ],
-    parser: '@typescript-eslint/parser',
-    plugins: ['@typescript-eslint'],
-    root: true,
-    rules: {
-        "object-curly-spacing": [ "error", "always" ],
-        "padded-blocks": [ "error", "never" ],
-        "one-var": ["error", "never"]
-    },
-    ignorePatterns: [
+    "ignorePatterns": [
         "lib/**",
         "debug.ts"
-    ]
-  };
+    ],
+    "parser": "@typescript-eslint/parser",
+    "plugins": ["@typescript-eslint"],
+    "root": true,
+    "rules": {
+        "capitalized-comments": [
+            "error",
+            "always",
+            {
+                "ignoreConsecutiveComments": true
+            }
+        ],
+        "multiline-comment-style": [
+            "error",
+            "separate-lines"
+        ],
+        "object-curly-spacing": [
+            "error",
+            "always"
+        ],
+        "one-var": [
+            "error",
+            "never"
+        ],
+        "padded-blocks": [
+            "error",
+            "never"
+        ]
+    }
+};

typescript/base/src/project.ts

@@ -33,13 +33,30 @@ export abstract class Project<ContractType> {
     }
 
     async downloadAbiFile (version: string) {
-        const response = await axios.get(this.getAbiUrl(version));
-        return response.data as SkaleABIFile;
+        const exceptions = [];
+        for (const abiUrl of this.getAbiUrls(version)) {
+            try {
+                // Await expression should be executed only
+                // when it failed on the previous iteration
+                // eslint-disable-next-line no-await-in-loop
+                const response = await axios.get(abiUrl);
+                return response.data as SkaleABIFile;
+            } catch (exception) {
+                exceptions.push(exception);
+            }
+        }
+        throw new Error(exceptions.toString());
     }
 
-    getAbiUrl (version: string) {
-        return `${this.githubRepo}releases/download/` +
-            `${version}/${this.getAbiFilename(version)}`;
+    getAbiUrls (version: string) {
+        return [
+            `${this.githubRepo}releases/download/` +
+                `${version}/${this.getAbiFilename(version)}`,
+            `${this.githubRepo.replace(
+                "github.com",
+                "raw.githubusercontent.com"
+            )}abi/${version}/${this.getAbiFilename(version)}`
+        ];
     }
 
     abstract getAbiFilename(version: string): string;