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fix: don't die on missing optional dependency gifencoder

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This commit is contained in:
Simon Lecoq
2023-08-23 22:59:05 -04:00
parent 4f02045e60
commit 54e28d361f
1 changed files with 25 additions and 19 deletions
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44
source/app/metrics/utils.mjs
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@@ -764,26 +764,32 @@ export async function gif({page, width, height, frames, x = 0, y = 0, repeat = t
if (fss.existsSync(path)) if (fss.existsSync(path))
await fs.unlink(path) await fs.unlink(path)
//Create encoder //Create encoder
const GIFEncoder = (await import("gifencoder")).default try {
const encoder = new GIFEncoder(width, height) const GIFEncoder = (await import("gifencoder")).default
encoder.createWriteStream().pipe(fss.createWriteStream(path)) const encoder = new GIFEncoder(width, height)
encoder.start() encoder.createWriteStream().pipe(fss.createWriteStream(path))
encoder.setRepeat(repeat ? 0 : -1) encoder.start()
encoder.setDelay(delay) encoder.setRepeat(repeat ? 0 : -1)
encoder.setQuality(quality) encoder.setDelay(delay)
//Register frames encoder.setQuality(quality)
for (let i = 0; i < frames; i++) { //Register frames
const buffer = new PNG(await page.screenshot({clip: {width, height, x, y}})) for (let i = 0; i < frames; i++) {
encoder.addFrame(await new Promise(solve => buffer.decode(pixels => solve(pixels)))) const buffer = new PNG(await page.screenshot({clip: {width, height, x, y}}))
if (frames % 10 === 0) encoder.addFrame(await new Promise(solve => buffer.decode(pixels => solve(pixels))))
console.debug(`metrics/puppeteergif > processed ${i}/${frames} frames`) if (frames % 10 === 0)
console.debug(`metrics/puppeteergif > processed ${i}/${frames} frames`)
}
console.debug(`metrics/puppeteergif > processed ${frames}/${frames} frames`)
//Close encoder and convert to base64
encoder.finish()
const result = await fs.readFile(path, "base64")
await fs.unlink(path)
return `data:image/gif;base64,${result}`
}
catch (error) {
console.debug(`metrics/puppeteergif > could not create gif: ${error}`)
return "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mOcOnfpfwAGfgLYttYINwAAAABJRU5ErkJggg=="
} }
console.debug(`metrics/puppeteergif > processed ${frames}/${frames} frames`)
//Close encoder and convert to base64
encoder.finish()
const result = await fs.readFile(path, "base64")
await fs.unlink(path)
return `data:image/gif;base64,${result}`
} }
/**D3 node wrapper (loosely based on https://github.com/d3-node/d3-node)*/ /**D3 node wrapper (loosely based on https://github.com/d3-node/d3-node)*/