tools: move eslint from tools to tools/node_modules

This is required because we need to add the babel-eslint dependency
and it has to be able to resolve "eslint".
babel-eslint is required to support future ES features such as async
iterators and import.meta.

Refs: https://github.com/nodejs/node/pull/17755
PR-URL: https://github.com/nodejs/node/pull/17820
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/node_modules/cli-width/index.js b/tools/node_modules/eslint/node_modules/cli-width/index.js
new file mode 100644
index 0000000000..de939f3194
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/cli-width/index.js
@@ -0,0 +1,49 @@
+'use strict';
+
+exports = module.exports = cliWidth;
+
+function normalizeOpts(options) {
+  var defaultOpts = {
+    defaultWidth: 0,
+    output: process.stdout,
+    tty: require('tty')
+  };
+
+  if (!options) {
+    return defaultOpts;
+  } else {
+    Object.keys(defaultOpts).forEach(function (key) {
+      if (!options[key]) {
+        options[key] = defaultOpts[key];
+      }
+    });
+
+    return options;
+  }
+}
+
+function cliWidth(options) {
+  var opts = normalizeOpts(options);
+
+  if (opts.output.getWindowSize) {
+    return opts.output.getWindowSize()[0] || opts.defaultWidth;
+  } else {
+    if (opts.tty.getWindowSize) {
+      return opts.tty.getWindowSize()[1] || opts.defaultWidth;
+    } else {
+      if (opts.output.columns) {
+        return opts.output.columns;
+      } else {
+        if (process.env.CLI_WIDTH) {
+          var width = parseInt(process.env.CLI_WIDTH, 10);
+
+          if (!isNaN(width) && width !== 0) {
+            return width;
+          }
+        }
+      }
+
+      return opts.defaultWidth;
+    }
+  }
+};