lycwed-gulp-xml-transformer
v1.0.5
Published
Gulp plugin for transforming xml content
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lycwed-gulp-xml-transformer
Transform xml documents gulp plugin
Install
$ npm install --save-dev lycwed-gulp-xml-transformer
Supports node >= 0.10
Usage
var xmlTransformer = require("lycwed-gulp-xml-transformer");
/*
* edit XML document by using user specific object
*/
gulp.src("./manifest.xml")
.pipe(xmlTransformer([
{ path: '//name', text: 'new names' },
{ path: '//version', attr: { 'major': '2' } }
]))
.pipe(gulp.dest("./dest"));
/*
* attributes can be functions too
*/
gulp.src("./manifest.xml")
.pipe(xmlTransformer([
{ path: '//version', attr: { 'major': val => parseInt(val, 10) + 1 } }
])
.pipe(gulp.dest("./dest"));
/*
* edit XML document by using user specific object using a namespace
*/
gulp.src("./manifest.xml")
.pipe(xmlTransformer([
{ path: '//xmlns:name', text: 'new names' },
{ path: '//xmlns:version', attr: { 'major': '2' } }
], 'http://www.w3.org/ns/widgets'))
.pipe(gulp.dest("./dest"));
/*
* edit XML document by using user specific object using a custom namespace
*/
gulp.src("./manifest.xml")
.pipe(xmlTransformer([
{ path: '//a:name', text: 'new names' },
{ path: '//a:version', attr: { 'major': '2' } }
], { a: 'http://www.w3.org/ns/widgets' }))
.pipe(gulp.dest("./dest"));
/*
* edit XML document by target same paths' name
*
...
<preference name="webviewbounce" value=""/> // edit only this one
<preference name="UIWebViewBounce" value="false"/>
<preference name="DisallowOverscroll" value=""/> // and this one !
...
*/
gulp.src("./manifest.xml")
.pipe(xmlTransformer([
{ path: '//xmlns:preference', index: 0, attr: { 'value': false } },
{ path: '//xmlns:preference', index: 2, attr: { 'value': true } }
], 'http://www.w3.org/ns/widgets'))
.pipe(gulp.dest("./dest"));
/*
* edit XML document by using user specific function
*/
gulp.src("./manifest.xml")
.pipe(xmlTransformer((xml, libxmljs) => {
// 'xml' is libxmljs Document object.
xml.get('//key[./text()="Version"]').nextElement().text('2.0.0');
// 'libxmljs' is libxmljs object. you can call any libxmljs function.
var child = new libxmljs.Element(xml, 'note');
child.text('some text');
xml.get('//description').addChild(child);
// must return libxmljs Document object.
return xml;
}))
.pipe(gulp.dest("./dest"));
Note
Please see libxmljs wiki page to get more information about libxmljs API.
Based on gulp-xml-editor.
API
xmlTransformer(transformations, nsUri)
transformations
Type: Object | Array<Object> | Function
The objects must be one of following.
// to modify(or add) the text of the element
{ path: 'xpath to the element', text: 'new text value' }
// to modify(or add) a attribute of the element
{ path: 'xpath to the element', attr: { 'attrName': 'attrValue' } }
// to modify(or add) some attributes of the element
{
path: 'xpath to the element',
attrs: [
{ 'attrName1': 'attrValue1' },
{ 'attrName2': 'attrValue2' }
]
}
// alternatively
{
path: 'xpath to the element',
attrs: {
'attrName1': 'attrValue1',
'attrName2': 'attrValue2',
}
}
// if the new value of the attribute depends on the old value, pass in a function
{
path: 'xpath to the element',
attrs: {
'foo': oldVal => oldVal.replace('bar', 'baz'),
}
}
The if a function is supplied, it must have the following signature: function (doc, [libxmljs]) {}
, and must return a libxmljs Document object. The doc
argument is a libxmljs Document object, and the libxmljs
argument is libxmljs object.
nsUri
Type: Object | string
A string representing the Namespace URI of the elements to transform, or an object literal with namespaces.
License
See the LICENSE file for license rights and limitations (MIT).