74 lines
No EOL
2.4 KiB
JavaScript
74 lines
No EOL
2.4 KiB
JavaScript
const fs = require('fs');
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const path = require('path');
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const child_process = require('child_process');
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const task = process.argv[2];
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if (task !== "build" && task !== "watch") {
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console.error("Expected a task of 'build' or 'watch'");
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process.exit(1);
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}
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const sdkName = process.argv[3];
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if (!sdkName) {
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console.error("Missing SDK name");
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process.exit(1);
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}
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const sdkPath = path.dirname(require.resolve(`matrix-${sdkName}-sdk/package.json`));
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console.log(sdkPath);
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// We only want to build the SDK if it looks like it was `npm link`ed
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if (fs.existsSync(path.join(sdkPath, '.git'))) {
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// Install the develop dependencies just in case they were forgotten by the developer.
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console.log("Installing develop dependencies");
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const devEnv = Object.assign({}, process.env, {NODE_ENV: "development"});
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child_process.execSync("npm install --only=dev", {
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env: devEnv,
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cwd: sdkPath,
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});
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// Because webpack is made of fail
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if (sdkName === "js") {
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console.log("Installing source-map-loader");
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child_process.execSync("npm install source-map-loader", {
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env: devEnv,
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cwd: sdkPath,
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});
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}
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// Send a signal so that the various blocks can unblock. See the top of
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// block-on-sdk-build.js for more information on how this is used.
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console.log("Sending signal that other processes may unblock");
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triggerCanarySignal(sdkName);
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// Actually start the watcher process for the sdk. This is what block-on-sdk-build.js
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// is going to monitor.
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console.log("Performing task: " + task);
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child_process.execSync(`npm ${task === "build" ? "run build" : "start"}`, {
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env: process.env,
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cwd: sdkPath,
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});
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}
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function triggerCanarySignal(sdkName) {
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const tmpPath = path.resolve(".tmp");
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try {
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fs.mkdirSync(tmpPath);
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} catch (e) {
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if (e.code !== 'EEXIST') {
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console.error(e);
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throw "Failed to create temporary directory";
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}
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}
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// Note: we intentionally create then delete the file to work around
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// a file watching problem where if the file exists on startup it may
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// fire a "created" event for the file. By having the behaviour be "do
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// something on delete" we avoid accidentally firing the signal too
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// early.
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const canaryPath = path.join(tmpPath, sdkName);
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fs.closeSync(fs.openSync(canaryPath, 'w'));
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fs.unlinkSync(canaryPath);
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} |