ejstmpl
Version:
A tiny template system based on EJS templating library
190 lines (189 loc) • 6.63 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
var path = require("path");
var fs = require("fs");
var ejs = require("ejs");
var Runtime = { search_root: '', globals: {} };
var RenderUnitPrivates = new WeakMap();
var EJSTmplPrivates = new WeakMap();
var RenderUnit = /** @class */ (function () {
function RenderUnit(renderer, params) {
RenderUnitPrivates.set(this, { cache: renderer, params: params });
}
RenderUnit.prototype.render = function () {
var privates = RenderUnitPrivates.get(this);
return privates.cache(privates.params);
};
RenderUnit.prototype.toString = function () { return this.render(); };
return RenderUnit;
}());
var FileCache = /** @class */ (function () {
function FileCache() {
}
FileCache.set = function (key, val) {
var _this = this;
var cache = this._file_watch.get(key);
if (cache && cache.template)
return;
if (!cache) {
var file_watcher_1 = fs.watch(key, function (e, f) {
var cache = _this._file_watch.get(key);
if (!cache)
file_watcher_1.close();
cache.template = undefined;
if (e === 'rename') {
file_watcher_1.close();
_this._file_watch.delete(key);
}
});
cache = { watcher: file_watcher_1, template: undefined };
this._file_watch.set(key, cache);
}
cache.template = val;
};
FileCache.get = function (key) {
var cache = this._file_watch.get(key);
return cache ? cache.template : undefined;
};
FileCache.delete = function (key) {
var cache = this._file_watch.get(key);
if (!cache)
return;
this._file_watch.delete(key);
cache.watcher.close();
};
FileCache.reset = function () {
var e_1, _a;
var entries = this._file_watch.entries();
try {
for (var entries_1 = __values(entries), entries_1_1 = entries_1.next(); !entries_1_1.done; entries_1_1 = entries_1.next()) {
var _b = __read(entries_1_1.value, 2), key = _b[0], watcher = _b[1].watcher;
watcher.close();
this._file_watch.delete(key);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (entries_1_1 && !entries_1_1.done && (_a = entries_1.return)) _a.call(entries_1);
}
finally { if (e_1) throw e_1.error; }
}
};
FileCache._file_watch = new Map();
return FileCache;
}());
;
ejs.cache = FileCache;
var EJSTmpl = /** @class */ (function () {
function EJSTmpl(file_name) {
if (file_name[0] === '/')
file_name = '.' + file_name;
EJSTmplPrivates.set(this, {
file_name: file_name,
file_root: Runtime.search_root,
file_path: path.resolve(Runtime.search_root, file_name)
});
EJSTplGetCache.call(this);
}
Object.defineProperty(EJSTmpl, "search_root", {
get: function () { return Runtime.search_root; },
set: function (v) { Runtime.search_root = '' + v; },
enumerable: false,
configurable: true
});
Object.defineProperty(EJSTmpl, "globals", {
get: function () { return Runtime.globals; },
enumerable: false,
configurable: true
});
EJSTmpl.init = function (file_name) { return new EJSTmpl(file_name); };
EJSTmpl.release = function () { FileCache.reset(); };
Object.defineProperty(EJSTmpl.prototype, "file_path", {
get: function () { return EJSTmplPrivates.get(this).file_path; },
enumerable: false,
configurable: true
});
EJSTmpl.prototype.release = function () {
FileCache.delete(EJSTmplPrivates.get(this).file_path);
};
EJSTmpl.prototype.render = function (params) {
return EJSTplGetCache.call(this)(__assign(__assign({}, Runtime.globals), params));
};
EJSTmpl.prototype.prepare = function (params) {
return new RenderUnit(EJSTplGetCache.call(this), __assign(__assign({}, Runtime.globals), params));
};
return EJSTmpl;
}());
function EJSTplGetCache() {
var _a = EJSTmplPrivates.get(this), file_path = _a.file_path, file_root = _a.file_root;
var cache = FileCache.get(file_path);
if (cache)
return cache;
cache = ejs.compile(fs.readFileSync(file_path).toString('utf8'), { cache: true, filename: file_path, root: file_root });
FileCache.set(file_path, cache);
return cache;
}
{
var candidate = require.main ? require.main.path : __dirname, found = false;
while (true) {
try {
var state = fs.statSync(candidate + "/node_modules");
if (state.isDirectory()) {
found = true;
break;
}
}
catch (e) { }
if (!found) {
var prev = path.dirname(candidate);
if (prev === '.' || prev === candidate)
break;
candidate = prev;
}
}
if (found) {
EJSTmpl.search_root = candidate;
}
else {
EJSTmpl.search_root = require.main ? require.main.path : process.cwd();
}
}
module.exports = EJSTmpl;