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Fix screenshotter race conditions (#1643)

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* Fix screenshotter race conditions

* Update screenshotter.js

* Update screenshotter.js
This commit is contained in:
ylemkimon
2018-08-21 13:04:05 +09:00
committed by GitHub
parent 41a43974ce
commit cb89a9e5d0
1 changed files with 20 additions and 14 deletions
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34
dockers/screenshotter/screenshotter.js
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@@ -475,24 +475,30 @@ function takeScreenshot(key) {
const bufFile = path.join(outputDir, filenamePrefix + ".png");
let promise = fs.ensureDir(outputDir)
.then(fs.writeFile(bufFile, buf));
.then(function() {
return fs.writeFile(bufFile, buf);
});
if (opts.diff) {
promise = promise.then(fs.ensureDir(diffDir))
.then(execFile("convert", [
"-fill", "white",
// First image: saved screenshot in red
"(", baseFile, "-colorize", "100,0,0", ")",
// Second image: new screenshot in green
"(", bufFile, "-colorize", "0,80,0", ")",
// Composite them
"-compose", "darken", "-composite",
"-trim", // remove everything with the same color as the
// corners
diffFile, // output file name
]));
.then(function() {
return execFile("convert", [
"-fill", "white",
// First image: saved screenshot in red
"(", baseFile, "-colorize", "100,0,0", ")",
// Second image: new screenshot in green
"(", bufFile, "-colorize", "0,80,0", ")",
// Composite them
"-compose", "darken", "-composite",
"-trim", // remove everything with the same color as
// the corners
diffFile, // output file name
]);
});
}
if (!opts.new) {
promise = promise.then(fs.unlink(bufFile));
promise = promise.then(function() {
return fs.unlink(bufFile);
});
}
return promise;
}