WIP - add extractor, generate snippet_data

node_modules/ink/build/vendor/hook-std.js

@@ -0,0 +1,81 @@
+// This is a fork of https://github.com/sindresorhus/hook-std adapted to Ink's needs
+'use strict';
+
+const hook = (stream, options, transform) => {
+  if (typeof options !== 'object') {
+    transform = options;
+    options = {};
+  }
+
+  options = Object.assign({
+    silent: true,
+    once: false
+  }, options);
+  let unhookFn;
+  const promise = new Promise(resolve => {
+    const {
+      write
+    } = stream;
+
+    const unhook = () => {
+      stream.write = write;
+      resolve();
+    };
+
+    stream.write = (output, enc, cb, writeOptions) => {
+      if (typeof options.onBeforeWrite === 'function') {
+        options.onBeforeWrite(writeOptions);
+      }
+
+      const cbRet = transform(String(output), unhook);
+
+      if (options.once) {
+        unhook();
+      }
+
+      if (options.silent) {
+        return typeof cbRet === 'boolean' ? cbRet : true;
+      }
+
+      let ret;
+
+      if (typeof cbRet === 'string') {
+        ret = typeof enc === 'string' ? Buffer.from(cbRet).toString(enc) : cbRet;
+      }
+
+      ret = ret || (Buffer.isBuffer(cbRet) ? cbRet : output);
+      const writeRet = write.call(stream, ret, enc, cb);
+
+      if (typeof options.onAfterWrite === 'function') {
+        options.onAfterWrite(writeOptions);
+      }
+
+      return writeRet;
+    };
+
+    unhookFn = unhook;
+  });
+  promise.unhook = unhookFn;
+  return promise;
+};
+
+const hookStd = (options, transform) => {
+  const streams = options.streams || [process.stdout, process.stderr];
+  const streamPromises = streams.map(stream => hook(stream, options, transform));
+  const promise = Promise.all(streamPromises);
+
+  promise.unhook = () => {
+    for (const streamPromise of streamPromises) {
+      streamPromise.unhook();
+    }
+  };
+
+  return promise;
+};
+
+hookStd.stdout = (...args) => hook(process.stdout, ...args);
+
+hookStd.stderr = (...args) => hook(process.stderr, ...args);
+
+module.exports = hookStd;
+module.exports.default = hookStd;