move doesFileExist to fsWrapper

2 files changed, 13 insertions, 13 deletions

diff --git a/packages/sol-compiler/src/compiler.ts b/packages/sol-compiler/src/compiler.ts
index d3c4a3919..2e7120361 100644
--- a/packages/sol-compiler/src/compiler.ts
+++ b/packages/sol-compiler/src/compiler.ts
@@ -82,18 +82,6 @@ export class Compiler {
     private readonly _artifactsDir: string;
     private readonly _solcVersionIfExists: string | undefined;
     private readonly _specifiedContracts: string[] | TYPE_ALL_FILES_IDENTIFIER;
-    private static async _doesFileExistAsync(filePath: string): Promise<boolean> {
-        try {
-            await fsWrapper.accessAsync(
-                filePath,
-                // node says we need to use bitwise, but tslint says no:
-                fs.constants.F_OK | fs.constants.R_OK, // tslint:disable-line:no-bitwise
-            );
-        } catch (err) {
-            return false;
-        }
-        return true;
-    }
     private static async _getSolcAsync(
         solcVersion: string,
     ): Promise<{ solcInstance: solc.SolcInstance; fullSolcVersion: string }> {
@@ -103,7 +91,7 @@ export class Compiler {
         }
         const compilerBinFilename = path.join(SOLC_BIN_DIR, fullSolcVersion);
         let solcjs: string;
-        if (await Compiler._doesFileExistAsync(compilerBinFilename)) {
+        if (await fsWrapper.doesFileExistAsync(compilerBinFilename)) {
             solcjs = (await fsWrapper.readFileAsync(compilerBinFilename)).toString();
         } else {
             logUtils.log(`Downloading ${fullSolcVersion}...`);
diff --git a/packages/sol-compiler/src/utils/fs_wrapper.ts b/packages/sol-compiler/src/utils/fs_wrapper.ts
index 44c97bd1e..8d6800276 100644
--- a/packages/sol-compiler/src/utils/fs_wrapper.ts
+++ b/packages/sol-compiler/src/utils/fs_wrapper.ts
@@ -13,4 +13,16 @@ export const fsWrapper = {
     statAsync: promisify<fs.Stats>(fs.stat),
     appendFileAsync: promisify<undefined>(fs.appendFile),
     accessAsync: promisify<boolean>(fs.access),
+    doesFileExistAsync: async (filePath: string): Promise<boolean> => {
+        try {
+            await fsWrapper.accessAsync(
+                filePath,
+                // node says we need to use bitwise, but tslint says no:
+                fs.constants.F_OK | fs.constants.R_OK, // tslint:disable-line:no-bitwise
+            );
+        } catch (err) {
+            return false;
+        }
+        return true;
+    },
 };