root
107 lines
2.5 KiB
JavaScript
107 lines
2.5 KiB
JavaScript
var DockerIgnore = require('@balena/dockerignore');
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var fs = require('fs');
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var path = require('path');
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var tar = require('tar-fs');
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var zlib = require('zlib');
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// https://github.com/HenrikJoreteg/extend-object/blob/v0.1.0/extend-object.js
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var arr = [];
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var each = arr.forEach;
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var slice = arr.slice;
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module.exports.extend = function(obj) {
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each.call(slice.call(arguments, 1), function(source) {
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if (source) {
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for (var prop in source) {
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obj[prop] = source[prop];
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}
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}
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});
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return obj;
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};
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module.exports.processArgs = function(opts, callback, defaultOpts) {
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if (!callback && typeof opts === 'function') {
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callback = opts;
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opts = null;
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}
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return {
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callback: callback,
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opts: module.exports.extend({}, defaultOpts, opts)
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};
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};
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/**
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* Parse the given repo tag name (as a string) and break it out into repo/tag pair.
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* // if given the input http://localhost:8080/woot:latest
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* {
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* repository: 'http://localhost:8080/woot',
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* tag: 'latest'
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* }
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* @param {String} input Input e.g: 'repo/foo', 'ubuntu', 'ubuntu:latest'
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* @return {Object} input parsed into the repo and tag.
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*/
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module.exports.parseRepositoryTag = function(input) {
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var separatorPos;
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var digestPos = input.indexOf('@');
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var colonPos = input.lastIndexOf(':');
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// @ symbol is more important
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if (digestPos >= 0) {
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separatorPos = digestPos;
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} else if (colonPos >= 0) {
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separatorPos = colonPos;
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} else {
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// no colon nor @
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return {
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repository: input
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};
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}
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// last colon is either the tag (or part of a port designation)
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var tag = input.slice(separatorPos + 1);
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// if it contains a / its not a tag and is part of the url
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if (tag.indexOf('/') === -1) {
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return {
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repository: input.slice(0, separatorPos),
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tag: tag
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};
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}
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return {
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repository: input
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};
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};
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module.exports.prepareBuildContext = function(file, next) {
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if (file && file.context) {
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fs.readFile(path.join(file.context, '.dockerignore'), (err, data) => {
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let ignoreFn;
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let filterFn;
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if (!err) {
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const dockerIgnore = DockerIgnore({ ignorecase: false }).add(data.toString());
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filterFn = dockerIgnore.createFilter();
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ignoreFn = (path) => {
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return !filterFn(path);
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}
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}
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const entries = file.src.slice() || []
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const pack = tar.pack(file.context, {
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entries: filterFn ? entries.filter(filterFn) : entries,
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ignore: ignoreFn // Only works on directories
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});
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next(pack.pipe(zlib.createGzip()));
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})
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} else {
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next(file);
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}
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}
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