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node_modules/table/dist/createStream.js.flow

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+import _ from 'lodash';
+import makeStreamConfig from './makeStreamConfig';
+import drawRow from './drawRow';
+import {
+  drawBorderBottom,
+  drawBorderJoin,
+  drawBorderTop
+} from './drawBorder';
+import stringifyTableData from './stringifyTableData';
+import truncateTableData from './truncateTableData';
+import mapDataUsingRowHeightIndex from './mapDataUsingRowHeightIndex';
+import alignTableData from './alignTableData';
+import padTableData from './padTableData';
+import calculateRowHeightIndex from './calculateRowHeightIndex';
+
+/**
+ * @param {Array} data
+ * @param {Object} config
+ * @returns {Array}
+ */
+const prepareData = (data, config) => {
+  let rows;
+
+  rows = stringifyTableData(data);
+
+  rows = truncateTableData(data, config);
+
+  const rowHeightIndex = calculateRowHeightIndex(rows, config);
+
+  rows = mapDataUsingRowHeightIndex(rows, rowHeightIndex, config);
+  rows = alignTableData(rows, config);
+  rows = padTableData(rows, config);
+
+  return rows;
+};
+
+/**
+ * @param {string[]} row
+ * @param {number[]} columnWidthIndex
+ * @param {Object} config
+ * @returns {undefined}
+ */
+const create = (row, columnWidthIndex, config) => {
+  const rows = prepareData([row], config);
+
+  const body = rows.map((literalRow) => {
+    return drawRow(literalRow, config.border);
+  }).join('');
+
+  let output;
+
+  output = '';
+
+  output += drawBorderTop(columnWidthIndex, config.border);
+  output += body;
+  output += drawBorderBottom(columnWidthIndex, config.border);
+
+  output = _.trimEnd(output);
+
+  process.stdout.write(output);
+};
+
+/**
+ * @param {string[]} row
+ * @param {number[]} columnWidthIndex
+ * @param {Object} config
+ * @returns {undefined}
+ */
+const append = (row, columnWidthIndex, config) => {
+  const rows = prepareData([row], config);
+
+  const body = rows.map((literalRow) => {
+    return drawRow(literalRow, config.border);
+  }).join('');
+
+  let output = '';
+  const bottom = drawBorderBottom(columnWidthIndex, config.border);
+
+  if (bottom !== '\n') {
+    output = '\r\u001B[K';
+  }
+
+  output += drawBorderJoin(columnWidthIndex, config.border);
+  output += body;
+  output += bottom;
+
+  output = _.trimEnd(output);
+
+  process.stdout.write(output);
+};
+
+/**
+ * @param {Object} userConfig
+ * @returns {Object}
+ */
+export default (userConfig = {}) => {
+  const config = makeStreamConfig(userConfig);
+
+  // @todo Use 'Object.values' when Node.js v6 support is dropped.
+  const columnWidthIndex = _.values(_.mapValues(config.columns, (column) => {
+    return column.width + column.paddingLeft + column.paddingRight;
+  }));
+
+  let empty;
+
+  empty = true;
+
+  return {
+    /**
+     * @param {string[]} row
+     * @returns {undefined}
+     */
+    write: (row) => {
+      if (row.length !== config.columnCount) {
+        throw new Error('Row cell count does not match the config.columnCount.');
+      }
+
+      if (empty) {
+        empty = false;
+
+        return create(row, columnWidthIndex, config);
+      } else {
+        return append(row, columnWidthIndex, config);
+      }
+    }
+  };
+};