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var path = require('path');
var util = require('util');
var folderOutput = require('./folder');
var Git = require('../utils/git');
var fs = require('../utils/fs');
var pathUtil = require('../utils/path');
var location = require('../utils/location');
/*
Mixin for output to resolve git conrefs
*/
module.exports = function conrefsLoader(Base) {
Base = folderOutput(Base);
function ConrefsLoader() {
Base.apply(this, arguments);
this.git = new Git();
}
util.inherits(ConrefsLoader, Base);
// Read a template by its source URL
ConrefsLoader.prototype.onGetTemplate = function(sourceURL) {
var that = this;
return this.git.resolve(sourceURL)
.then(function(filepath) {
// Is local file
if (!filepath) {
filepath = that.book.resolve(sourceURL);
} else {
that.book.log.debug.ln('resolve from git', sourceURL, 'to', filepath);
}
// Read file from absolute path
return fs.readFile(filepath)
.then(function(source) {
return {
src: source.toString('utf8'),
path: filepath
};
});
});
};
// Generate a source URL for a template
ConrefsLoader.prototype.onResolveTemplate = function(from, to) {
// If origin is in the book, we enforce result file to be in the book
if (this.book.isInBook(from)) {
var href = location.toAbsolute(to, path.dirname(from), '');
return this.book.resolve(href);
}
// If origin is in a git repository, we resolve file in the git repository
var gitRoot = this.git.resolveRoot(from);
if (gitRoot) {
return pathUtil.resolveInRoot(gitRoot, to);
}
// If origin is not in the book (include from a git content ref)
return path.resolve(path.dirname(from), to);
};
return ConrefsLoader;
};
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