From 1ae1bbe5d5b169552a4ea6b4188df11a221c9d27 Mon Sep 17 00:00:00 2001
From: Shaun Smith <shaun@snyk.io>
Date: Fri, 9 Jun 2017 17:49:38 +0100
Subject: [PATCH] feat: allow the command to be overridden via options

---
 lib/index.js         | 20 +++++++++++---------
 test/inspect.test.js | 23 +++++++++++++++++++++--
 2 files changed, 32 insertions(+), 11 deletions(-)

diff --git a/lib/index.js b/lib/index.js
index 6e740b54..50608d86 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -5,10 +5,12 @@ module.exports = {
   inspect: inspect,
 };
 
-function inspect(root, targetFile, args) {
+function inspect(root, targetFile, args, options) {
+  if (!options) { options = {}; }
+  var command = options.command || 'python';
   return Promise.all([
-    getMetaData(),
-    getDependencies(root, targetFile, args),
+    getMetaData(command, root),
+    getDependencies(command, root, targetFile, args),
   ])
   .then(function (result) {
     return {
@@ -18,8 +20,8 @@ function inspect(root, targetFile, args) {
   });
 }
 
-function getMetaData() {
-  return subProcess.execute('python', ['--version'])
+function getMetaData(command, root) {
+  return subProcess.execute(command, ['--version'], { cwd: root })
   .then(function (output) {
     return {
       name: 'snyk-python-plugin',
@@ -28,10 +30,10 @@ function getMetaData() {
   });
 }
 
-function getDependencies(root, targetFile, args) {
+function getDependencies(command, root, targetFile, args) {
   return subProcess.execute(
-    'python',
-    buildArgs(root, targetFile, args),
+    command,
+    buildArgs(targetFile, args),
     { cwd: root }
   )
   .then(function (output) {
@@ -48,7 +50,7 @@ function getDependencies(root, targetFile, args) {
   });
 }
 
-function buildArgs(root, targetFile, extraArgs) {
+function buildArgs(targetFile, extraArgs) {
   var args = [path.resolve(__dirname, '../plug/pip_resolve.py')];
   if (targetFile) { args.push(targetFile); }
   if (extraArgs) { args.push(extraArgs); }
diff --git a/test/inspect.test.js b/test/inspect.test.js
index 591dfd4e..090a7985 100644
--- a/test/inspect.test.js
+++ b/test/inspect.test.js
@@ -1,5 +1,7 @@
 var test = require('tap').test;
 var path = require('path');
+var sinon = require('sinon');
+
 var plugin = require('../lib');
 var subProcess = require('../lib/sub-process');
 
@@ -86,6 +88,23 @@ test('deps not installed', function (t) {
   });
 });
 
-function chdirWorkspaces(subdir) {
-  process.chdir(path.resolve(__dirname, 'workspaces', subdir));
+test('uses provided exec command', function (t) {
+  var command = 'echo';
+  var execute = sinon.stub(subProcess, 'execute');
+  execute.onFirstCall().returns(Promise.resolve('abc'));
+  execute.onSecondCall().returns(Promise.resolve('{}'));
+  t.teardown(execute.restore);
+
+  return plugin.inspect('.', 'requirements.txt', null, {
+    command: command,
+  })
+  .then(function () {
+    t.ok(execute.calledTwice, 'execute called twice');
+    t.equal(execute.firstCall.args[0], command, 'uses command');
+    t.equal(execute.secondCall.args[0], command, 'uses command');
+  });
+});
+
+function chdirWorkspaces(dir) {
+  process.chdir(path.resolve(__dirname, 'workspaces', dir));
 }