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node_modules/nyc/lib/commands/helpers.js

@@ -0,0 +1,74 @@
+'use strict'
+
+const decamelize = require('decamelize')
+const schema = require('@istanbuljs/schema')
+
+/* These options still need to be connected to the instrumenter
+ * Disabling them for now also avoids the issue with OSX cutting
+ * off the error help screen at 8192 characters.
+ */
+const blockOptions = [
+  'coverageVariable',
+  'coverageGlobalScope',
+  'coverageGlobalScopeFunc'
+]
+
+module.exports = {
+  setupOptions (yargs, command, cwd) {
+    Object.entries(schema.nyc.properties).forEach(([name, setup]) => {
+      if (blockOptions.includes(name)) {
+        return
+      }
+
+      const option = {
+        description: setup.description,
+        default: setup.default,
+        type: setup.type
+      }
+
+      if (name === 'cwd') {
+        if (command !== null) {
+          return
+        }
+
+        option.default = cwd
+        option.global = true
+      }
+
+      if (option.type === 'array') {
+        option.type = 'string'
+      }
+
+      if ('nycAlias' in setup) {
+        option.alias = setup.nycAlias
+      }
+
+      const optionName = decamelize(name, '-')
+      yargs.option(optionName, option)
+      if (!setup.nycCommands.includes(command)) {
+        yargs.hide(optionName)
+      }
+    })
+  },
+  /* istanbul ignore next: unsure how to test this */
+  suppressEPIPE (error) {
+    /* Prevent dumping error when `nyc npm t|head` causes stdout to
+     * be closed when reporting runs. */
+    if (error.code !== 'EPIPE') {
+      throw error
+    }
+  },
+  cliWrapper (execute) {
+    return argv => {
+      execute(argv).catch(error => {
+        try {
+          console.error(error.message)
+        } catch (_) {
+          /* We need to run process.exit(1) even if stderr is destroyed */
+        }
+
+        process.exit(1)
+      })
+    }
+  }
+}