3d4476ac53
The current version 2.5 is from September 2014, which is almost 8 years old now. The new version 3.19.0 is from November 2017, which is still almost 5 years old, but is a step forward towards eventually using the most recent version. Note that we currently can't update any further; see #11802 for the details. Fortunately using this newer version only required a few changes: - The `ttx` output regexes needed updating to ignore comments that `ttx` now puts after some XML nodes (`<!-- ... -->` and `/* ... */`). - The `ttx` invocation now explicitly uses `python2` (except on Windows where this alias doesn't exist) since otherwise the font tests can't be run on modern systems anymore given that `python` is nowadays an alias for `python3`, and it now points at the new location of the `ttx.py` file since the `Tools` folder got removed. - The note about needing a 32-bit Python 2.6 version is dropped since it's obsolete: this version (and also the existing one already) work just fine on a 64-bit Python 2.7 as well.
91 lines
2.8 KiB
JavaScript
91 lines
2.8 KiB
JavaScript
/*
|
|
* Copyright 2014 Mozilla Foundation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
const fs = require("fs");
|
|
const path = require("path");
|
|
const spawn = require("child_process").spawn;
|
|
|
|
const ttxResourcesHome = path.join(__dirname, "..", "ttx");
|
|
|
|
let nextTTXTaskId = Date.now();
|
|
|
|
function runTtx(ttxResourcesHomePath, fontPath, registerOnCancel, callback) {
|
|
fs.realpath(ttxResourcesHomePath, function (error, realTtxResourcesHomePath) {
|
|
const fontToolsHome = path.join(realTtxResourcesHomePath, "fonttools-code");
|
|
fs.realpath(fontPath, function (errorFontPath, realFontPath) {
|
|
const ttxPath = path.join("Lib", "fontTools", "ttx.py");
|
|
if (!fs.existsSync(path.join(fontToolsHome, ttxPath))) {
|
|
callback("TTX was not found, please checkout PDF.js submodules");
|
|
return;
|
|
}
|
|
const ttxEnv = {
|
|
PYTHONPATH: path.join(fontToolsHome, "Lib"),
|
|
PYTHONDONTWRITEBYTECODE: true,
|
|
};
|
|
const ttxStdioMode = "ignore";
|
|
const python = process.platform !== "win32" ? "python2" : "python";
|
|
const ttx = spawn(python, [ttxPath, realFontPath], {
|
|
cwd: fontToolsHome,
|
|
stdio: ttxStdioMode,
|
|
env: ttxEnv,
|
|
});
|
|
let ttxRunError;
|
|
registerOnCancel(function (reason) {
|
|
ttxRunError = reason;
|
|
callback(reason);
|
|
ttx.kill();
|
|
});
|
|
ttx.on("error", function (errorTtx) {
|
|
ttxRunError = errorTtx;
|
|
callback("Unable to execute ttx");
|
|
});
|
|
ttx.on("close", function (code) {
|
|
if (ttxRunError) {
|
|
return;
|
|
}
|
|
callback();
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
exports.translateFont = function translateFont(
|
|
content,
|
|
registerOnCancel,
|
|
callback
|
|
) {
|
|
const buffer = Buffer.from(content, "base64");
|
|
const taskId = (nextTTXTaskId++).toString();
|
|
const fontPath = path.join(ttxResourcesHome, taskId + ".otf");
|
|
const resultPath = path.join(ttxResourcesHome, taskId + ".ttx");
|
|
|
|
fs.writeFileSync(fontPath, buffer);
|
|
runTtx(ttxResourcesHome, fontPath, registerOnCancel, function (err) {
|
|
fs.unlinkSync(fontPath);
|
|
if (err) {
|
|
console.error(err);
|
|
callback(err);
|
|
} else if (!fs.existsSync(resultPath)) {
|
|
callback("Output was not generated");
|
|
} else {
|
|
callback(null, fs.readFileSync(resultPath));
|
|
fs.unlinkSync(resultPath);
|
|
}
|
|
});
|
|
};
|