@zkochan/pnpm
Version:
A fast implementation of npm install
460 lines (434 loc) • 15.2 kB
JavaScript
(function() {
var IMAGE_STYLES, Reloader, numberOfMatchingSegments, pathFromUrl, pathsMatch, pickBestMatch, splitUrl;
splitUrl = function(url) {
var hash, index, params;
if ((index = url.indexOf('#')) >= 0) {
hash = url.slice(index);
url = url.slice(0, index);
} else {
hash = '';
}
if ((index = url.indexOf('?')) >= 0) {
params = url.slice(index);
url = url.slice(0, index);
} else {
params = '';
}
return {
url: url,
params: params,
hash: hash
};
};
pathFromUrl = function(url) {
var path;
url = splitUrl(url).url;
if (url.indexOf('file://') === 0) {
path = url.replace(/^file:\/\/(localhost)?/, '');
} else {
path = url.replace(/^([^:]+:)?\/\/([^:\/]+)(:\d*)?\//, '/');
}
return decodeURIComponent(path);
};
pickBestMatch = function(path, objects, pathFunc) {
var bestMatch, object, score, _i, _len;
bestMatch = {
score: 0
};
for (_i = 0, _len = objects.length; _i < _len; _i++) {
object = objects[_i];
score = numberOfMatchingSegments(path, pathFunc(object));
if (score > bestMatch.score) {
bestMatch = {
object: object,
score: score
};
}
}
if (bestMatch.score > 0) {
return bestMatch;
} else {
return null;
}
};
numberOfMatchingSegments = function(path1, path2) {
var comps1, comps2, eqCount, len;
path1 = path1.replace(/^\/+/, '').toLowerCase();
path2 = path2.replace(/^\/+/, '').toLowerCase();
if (path1 === path2) {
return 10000;
}
comps1 = path1.split('/').reverse();
comps2 = path2.split('/').reverse();
len = Math.min(comps1.length, comps2.length);
eqCount = 0;
while (eqCount < len && comps1[eqCount] === comps2[eqCount]) {
++eqCount;
}
return eqCount;
};
pathsMatch = function(path1, path2) {
return numberOfMatchingSegments(path1, path2) > 0;
};
IMAGE_STYLES = [
{
selector: 'background',
styleNames: ['backgroundImage']
}, {
selector: 'border',
styleNames: ['borderImage', 'webkitBorderImage', 'MozBorderImage']
}
];
exports.Reloader = Reloader = (function() {
function Reloader(window, console, Timer) {
this.window = window;
this.console = console;
this.Timer = Timer;
this.document = this.window.document;
this.importCacheWaitPeriod = 200;
this.plugins = [];
}
Reloader.prototype.addPlugin = function(plugin) {
return this.plugins.push(plugin);
};
Reloader.prototype.analyze = function(callback) {
return results;
};
Reloader.prototype.reload = function(path, options) {
var plugin, _base, _i, _len, _ref;
this.options = options;
if ((_base = this.options).stylesheetReloadTimeout == null) {
_base.stylesheetReloadTimeout = 15000;
}
_ref = this.plugins;
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
plugin = _ref[_i];
if (plugin.reload && plugin.reload(path, options)) {
return;
}
}
if (options.liveCSS) {
if (path.match(/\.css$/i)) {
if (this.reloadStylesheet(path)) {
return;
}
}
}
if (options.liveImg) {
if (path.match(/\.(jpe?g|png|gif)$/i)) {
this.reloadImages(path);
return;
}
}
return this.reloadPage();
};
Reloader.prototype.reloadPage = function() {
return this.window.document.location.reload();
};
Reloader.prototype.reloadImages = function(path) {
var expando, img, selector, styleNames, styleSheet, _i, _j, _k, _l, _len, _len1, _len2, _len3, _ref, _ref1, _ref2, _ref3, _results;
expando = this.generateUniqueString();
_ref = this.document.images;
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
img = _ref[_i];
if (pathsMatch(path, pathFromUrl(img.src))) {
img.src = this.generateCacheBustUrl(img.src, expando);
}
}
if (this.document.querySelectorAll) {
for (_j = 0, _len1 = IMAGE_STYLES.length; _j < _len1; _j++) {
_ref1 = IMAGE_STYLES[_j], selector = _ref1.selector, styleNames = _ref1.styleNames;
_ref2 = this.document.querySelectorAll("[style*=" + selector + "]");
for (_k = 0, _len2 = _ref2.length; _k < _len2; _k++) {
img = _ref2[_k];
this.reloadStyleImages(img.style, styleNames, path, expando);
}
}
}
if (this.document.styleSheets) {
_ref3 = this.document.styleSheets;
_results = [];
for (_l = 0, _len3 = _ref3.length; _l < _len3; _l++) {
styleSheet = _ref3[_l];
_results.push(this.reloadStylesheetImages(styleSheet, path, expando));
}
return _results;
}
};
Reloader.prototype.reloadStylesheetImages = function(styleSheet, path, expando) {
var e, rule, rules, styleNames, _i, _j, _len, _len1;
try {
rules = styleSheet != null ? styleSheet.cssRules : void 0;
} catch (_error) {
e = _error;
}
if (!rules) {
return;
}
for (_i = 0, _len = rules.length; _i < _len; _i++) {
rule = rules[_i];
switch (rule.type) {
case CSSRule.IMPORT_RULE:
this.reloadStylesheetImages(rule.styleSheet, path, expando);
break;
case CSSRule.STYLE_RULE:
for (_j = 0, _len1 = IMAGE_STYLES.length; _j < _len1; _j++) {
styleNames = IMAGE_STYLES[_j].styleNames;
this.reloadStyleImages(rule.style, styleNames, path, expando);
}
break;
case CSSRule.MEDIA_RULE:
this.reloadStylesheetImages(rule, path, expando);
}
}
};
Reloader.prototype.reloadStyleImages = function(style, styleNames, path, expando) {
var newValue, styleName, value, _i, _len;
for (_i = 0, _len = styleNames.length; _i < _len; _i++) {
styleName = styleNames[_i];
value = style[styleName];
if (typeof value === 'string') {
newValue = value.replace(/\burl\s*\(([^)]*)\)/, (function(_this) {
return function(match, src) {
if (pathsMatch(path, pathFromUrl(src))) {
return "url(" + (_this.generateCacheBustUrl(src, expando)) + ")";
} else {
return match;
}
};
})(this));
if (newValue !== value) {
style[styleName] = newValue;
}
}
}
};
Reloader.prototype.reloadStylesheet = function(path) {
var imported, link, links, match, style, _i, _j, _k, _l, _len, _len1, _len2, _len3, _ref, _ref1;
links = (function() {
var _i, _len, _ref, _results;
_ref = this.document.getElementsByTagName('link');
_results = [];
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
link = _ref[_i];
if (link.rel.match(/^stylesheet$/i) && !link.__LiveReload_pendingRemoval) {
_results.push(link);
}
}
return _results;
}).call(this);
imported = [];
_ref = this.document.getElementsByTagName('style');
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
style = _ref[_i];
if (style.sheet) {
this.collectImportedStylesheets(style, style.sheet, imported);
}
}
for (_j = 0, _len1 = links.length; _j < _len1; _j++) {
link = links[_j];
this.collectImportedStylesheets(link, link.sheet, imported);
}
if (this.window.StyleFix && this.document.querySelectorAll) {
_ref1 = this.document.querySelectorAll('style[data-href]');
for (_k = 0, _len2 = _ref1.length; _k < _len2; _k++) {
style = _ref1[_k];
links.push(style);
}
}
this.console.log("LiveReload found " + links.length + " LINKed stylesheets, " + imported.length + " @imported stylesheets");
match = pickBestMatch(path, links.concat(imported), (function(_this) {
return function(l) {
return pathFromUrl(_this.linkHref(l));
};
})(this));
if (match) {
if (match.object.rule) {
this.console.log("LiveReload is reloading imported stylesheet: " + match.object.href);
this.reattachImportedRule(match.object);
} else {
this.console.log("LiveReload is reloading stylesheet: " + (this.linkHref(match.object)));
this.reattachStylesheetLink(match.object);
}
} else {
this.console.log("LiveReload will reload all stylesheets because path '" + path + "' did not match any specific one");
for (_l = 0, _len3 = links.length; _l < _len3; _l++) {
link = links[_l];
this.reattachStylesheetLink(link);
}
}
return true;
};
Reloader.prototype.collectImportedStylesheets = function(link, styleSheet, result) {
var e, index, rule, rules, _i, _len;
try {
rules = styleSheet != null ? styleSheet.cssRules : void 0;
} catch (_error) {
e = _error;
}
if (rules && rules.length) {
for (index = _i = 0, _len = rules.length; _i < _len; index = ++_i) {
rule = rules[index];
switch (rule.type) {
case CSSRule.CHARSET_RULE:
continue;
case CSSRule.IMPORT_RULE:
result.push({
link: link,
rule: rule,
index: index,
href: rule.href
});
this.collectImportedStylesheets(link, rule.styleSheet, result);
break;
default:
break;
}
}
}
};
Reloader.prototype.waitUntilCssLoads = function(clone, func) {
var callbackExecuted, executeCallback, poll;
callbackExecuted = false;
executeCallback = (function(_this) {
return function() {
if (callbackExecuted) {
return;
}
callbackExecuted = true;
return func();
};
})(this);
clone.onload = (function(_this) {
return function() {
_this.console.log("LiveReload: the new stylesheet has finished loading");
_this.knownToSupportCssOnLoad = true;
return executeCallback();
};
})(this);
if (!this.knownToSupportCssOnLoad) {
(poll = (function(_this) {
return function() {
if (clone.sheet) {
_this.console.log("LiveReload is polling until the new CSS finishes loading...");
return executeCallback();
} else {
return _this.Timer.start(50, poll);
}
};
})(this))();
}
return this.Timer.start(this.options.stylesheetReloadTimeout, executeCallback);
};
Reloader.prototype.linkHref = function(link) {
return link.href || link.getAttribute('data-href');
};
Reloader.prototype.reattachStylesheetLink = function(link) {
var clone, parent;
if (link.__LiveReload_pendingRemoval) {
return;
}
link.__LiveReload_pendingRemoval = true;
if (link.tagName === 'STYLE') {
clone = this.document.createElement('link');
clone.rel = 'stylesheet';
clone.media = link.media;
clone.disabled = link.disabled;
} else {
clone = link.cloneNode(false);
}
clone.href = this.generateCacheBustUrl(this.linkHref(link));
parent = link.parentNode;
if (parent.lastChild === link) {
parent.appendChild(clone);
} else {
parent.insertBefore(clone, link.nextSibling);
}
return this.waitUntilCssLoads(clone, (function(_this) {
return function() {
var additionalWaitingTime;
if (/AppleWebKit/.test(navigator.userAgent)) {
additionalWaitingTime = 5;
} else {
additionalWaitingTime = 200;
}
return _this.Timer.start(additionalWaitingTime, function() {
var _ref;
if (!link.parentNode) {
return;
}
link.parentNode.removeChild(link);
clone.onreadystatechange = null;
return (_ref = _this.window.StyleFix) != null ? _ref.link(clone) : void 0;
});
};
})(this));
};
Reloader.prototype.reattachImportedRule = function(_arg) {
var href, index, link, media, newRule, parent, rule, tempLink;
rule = _arg.rule, index = _arg.index, link = _arg.link;
parent = rule.parentStyleSheet;
href = this.generateCacheBustUrl(rule.href);
media = rule.media.length ? [].join.call(rule.media, ', ') : '';
newRule = "@import url(\"" + href + "\") " + media + ";";
rule.__LiveReload_newHref = href;
tempLink = this.document.createElement("link");
tempLink.rel = 'stylesheet';
tempLink.href = href;
tempLink.__LiveReload_pendingRemoval = true;
if (link.parentNode) {
link.parentNode.insertBefore(tempLink, link);
}
return this.Timer.start(this.importCacheWaitPeriod, (function(_this) {
return function() {
if (tempLink.parentNode) {
tempLink.parentNode.removeChild(tempLink);
}
if (rule.__LiveReload_newHref !== href) {
return;
}
parent.insertRule(newRule, index);
parent.deleteRule(index + 1);
rule = parent.cssRules[index];
rule.__LiveReload_newHref = href;
return _this.Timer.start(_this.importCacheWaitPeriod, function() {
if (rule.__LiveReload_newHref !== href) {
return;
}
parent.insertRule(newRule, index);
return parent.deleteRule(index + 1);
});
};
})(this));
};
Reloader.prototype.generateUniqueString = function() {
return 'livereload=' + Date.now();
};
Reloader.prototype.generateCacheBustUrl = function(url, expando) {
var hash, oldParams, originalUrl, params, _ref;
if (expando == null) {
expando = this.generateUniqueString();
}
_ref = splitUrl(url), url = _ref.url, hash = _ref.hash, oldParams = _ref.params;
if (this.options.overrideURL) {
if (url.indexOf(this.options.serverURL) < 0) {
originalUrl = url;
url = this.options.serverURL + this.options.overrideURL + "?url=" + encodeURIComponent(url);
this.console.log("LiveReload is overriding source URL " + originalUrl + " with " + url);
}
}
params = oldParams.replace(/(\?|&)livereload=(\d+)/, function(match, sep) {
return "" + sep + expando;
});
if (params === oldParams) {
if (oldParams.length === 0) {
params = "?" + expando;
} else {
params = "" + oldParams + "&" + expando;
}
}
return url + params + hash;
};
return Reloader;
})();
}).call(this);