gulp-copycat
v0.0.4
Published
Copy blocks of content from one file to another
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Readme
gulp-copycat
Copy values inside source tag blocks to destination tag blocks
Table of Contents
Usage
Install:
npm install --save-dev gulp-copycatAdd some source tags in your source file:
<!-- ccs:<name> -->
Everything here will be copied
<!-- /ccs:<name> -->Add some destination blocks in your destination file:
<!-- ccd:<name> -->
Everything here will be replaced by value in source file
<!-- /ccd:<name> -->name name of the tag.
ccs: ("copy cat source") is a predefined source tag.
/ccs: end of source tag block
ccd: ("copy cat destination") is a predefined destination tag.
/ccd: end of destination tag block
API
copycat(options)
options
Type: object
{Boolean} filterSourceFiles (true) - Filter out files containing source tags from pipe stream. Set to false if you want to keep both source tag files and destination tag files in pipe stream.
{Boolean} keepSourceTags (false) - Keep source tags in source file -- (
<!-- ccs:<name> -->and<!-- /ccs:<name> -->)"options.filterSourceFiles" must be set to false
{Boolean} keepSourceTagValues (false) - Keep value between source tags in source file -- (
<!-- ccs:<name> -->VALUES<!-- /ccs:<name> -->)"options.filterSourceFiles" must be set to false
{Boolean} keepDestTags (false) - Keep destination tags in destination file -- (
<!-- ccd:<name> -->``<!-- /ccd:<name> -->)
It is possible to add custom source- and destination tags. This can be useful for when you need to add tags to files that has different comment syntax than HTML:
options.tags
Type: object
var options = {
tags: {
source: [
{
begin: /regex-here/, // beginning of source tag: <!-- ccs:name -->
end: /regex-here/ // end of source tag: <!-- /ccs:name -->
}
],
dest: [
{
begin: /regex-here/, // beginning of destination tag: <!-- ccd:name -->
end: /regex-here/ // end of destination tag: <!-- /ccd:name -->
}
],
}
};
Examples
Example 1: Add values from one html file to another
source.html:
<!DOCTYPE html>
<html>
<head>...</head>
<body>
<div>
<!-- ccs: foo -->Foo<!-- /ccs: foo -->
<!-- ccs: bar -->Bar<!-- /ccs: bar -->
</div>
destination.html:
<!DOCTYPE html>
<html>
<head>...</head>
<body>
<div>
<span>
Have some <!-- ccd: foo -->(watch me disappear)<!-- /ccd: foo -->
</span>
<h3>
with <!-- ccd:bar--><!-- /ccd:bar-->
</h3>
</div>
gulpfile.js:
var gulp = require('gulp');
var copycat = require('gulp-copycat');
var concat = require('gulp-concat');
gulp.task('default', function() {
return gulp.src(['source.html', 'destination.html'])
.pipe(copycat())
.pipe(concat('result.html'))
.pipe(gulp.dest('/build/'))
});Result (/build/result.html):
<!DOCTYPE html>
<html>
<head>...</head>
<body>
<div>
<span>
Have some Foo
</span>
<h3>
with Bar
</h3>
</div>Example 2: Add source tags for javascript comment syntax:
constants.js
var version = /*-- ccs:version --*/1.2.3/*-- /ccs:version --*/;destination.html:
<!DOCTYPE html>
<html>
<head>
<title><!-- ccd:version --><!-- /ccd:version --></title>
</head>
<body>...
gulpfile.js:
var gulp = require('gulp');
var copycat = require('gulp-copycat');
var concat = require('gulp-concat');
var sourceRegexBegin: /\/\*--\s*ccs:\s*(\S+)\s*--\*\//gi
var sourceRegexEnd: /\/\*--\s*\/ccs:\s*(\S+)\s*--\*\//gi
var options = {
tags: {
source: [
{
begin: sourceRegexBegin, // beginning of source tag: /*-- ccs:name --*/
end: sourceRegexEnd // end of source tag: /*-- /ccs:name --*/
}
]
}
gulp.task('default', function() {
return gulp.src(['constants.js', 'destination.html'])
.pipe(copycat(options))
.pipe(concat('index.html'))
.pipe(gulp.dest('/build/'))
});Result (/build/index.html):
<!DOCTYPE html>
<html>
<head>
<title>1.2.3</title>
</head>
<body>...
Changelog
0.0.4
Fixed issue where destination file would become one character less in length
0.0.3
Added README
0.0.2
Initial version added to GitHub