From c4102b0e1f381c52ad318099e82ab42d98e0291f Mon Sep 17 00:00:00 2001
From: serapath <dev@serapath.de>
Date: Fri, 12 May 2017 00:51:56 +0700
Subject: [PATCH] allow a dependent module to specify a default transform field
as a fallback
---
index.js | 27 ++++++++++++++-------------
readme.markdown | 3 +++
2 files changed, 17 insertions(+), 13 deletions(-)
diff --git a/index.js b/index.js
index 45cbeac..e1d512f 100644
--- a/index.js
+++ b/index.js
@@ -222,7 +222,8 @@ Deps.prototype.getTransforms = function (file, pkg, opts) {
var transforms = [].concat(isTopLevel ? this.transforms : [])
.concat(getTransforms(pkg, {
globalTransform: this.globalTransforms,
- transformKey: this.options.transformKey
+ transformKey: this.options.transformKey,
+ defaultTransformKey: this.options.defaultTransformKey
}))
;
if (transforms.length === 0) return through();
@@ -547,21 +548,21 @@ Deps.prototype.lookupPackage = function (file, cb) {
};
function getTransforms (pkg, opts) {
- var trx = [];
- if (opts.transformKey) {
- var n = pkg;
- var keys = opts.transformKey;
- for (var i = 0; i < keys.length; i++) {
- if (n && typeof n === 'object') n = n[keys[i]];
- else break;
- }
- if (i === keys.length) {
- trx = [].concat(n).filter(Boolean);
- }
- }
+ var trx = getTrx(opts.transformKey, pkg);
+ if (!trx) trx = getTrx(opts.defaultTransformKey, pkg) || [];
return trx.concat(opts.globalTransform || []);
}
+function getTrx (keys, n) {
+ if (keys) {
+ for (var i = 0; i < keys.length; i++) {
+ if (n && typeof n === 'object') n = n[keys[i]];
+ else break;
+ }
+ if (i === keys.length && n) return [].concat(n).filter(Boolean);
+ }
+}
+
function nextTick (cb) {
var args = [].slice.call(arguments, 1);
process.nextTick(function () { cb.apply(null, args) });
diff --git a/readme.markdown b/readme.markdown
index 8dd1f68..2523f8b 100644
--- a/readme.markdown
+++ b/readme.markdown
@@ -68,6 +68,9 @@ Optionally pass in some `opts`:
package.json for source transformations. If falsy, don't look at the
package.json at all.
+* `opts.defaultTransformKey` - if provided, used as a fallback
+in case `opts.transformKey` was not provided or couldn't find any transforms
+
* `opts.resolve` - custom resolve function using the
`opts.resolve(id, parent, cb)` signature that
[browser-resolve](https://github.com/shtylman/node-browser-resolve) has