Rawtherapee wrapper

release/1.0
Clovis Gauzy 2 years ago
parent 8e92c0c14e
commit f974a2793a
  1. 175
      rawtherapee.js

@ -0,0 +1,175 @@
const fs = require('fs')
const { spawn } = require('child_process')
const defaultOptions = {
replace: false,
allFormats: false,
presets: ['default'],
ignoreBadPreset: false,
output: '.',
format: 'jpg',
depth: 8,
compression: 90,
subSampling: 2,
zip: false,
onChange: () => {}
}
const o2cli = (options) => {
const params = ['-q']
const {
replace,
allFormats,
presets,
ignoreBadPreset,
output,
format,
compression,
subSampling,
zip,
depth
} = options
if (replace) params.push('-Y')
if (allFormats) params.push('-a')
if (presets || presets.length) {
presets.forEach((preset) => {
switch (preset) {
case 'default':
return params.push('-d')
case 'sidecar':
return params.push('-s')
case 'sidecar-strict':
return params.push('-S')
default:
if (!fs.existsSync(preset)) {
const err = new Error(`Preset '${preset}' not found.`)
if (!ignoreBadPreset) throw err
else if (process.env.DEBUG) console.error(err)
} else {
params.push('-p')
params.push(preset)
}
}
})
}
if (format) {
switch (format.toLowerCase()) {
case 'jpg':
case 'jpeg':
params.push(`-j${compression || ''}`)
if (subSampling) {
switch (subSampling) {
case '4:2:0':
case 1:
params.push('-js1')
break
case '4:2:2':
case 2:
params.push('-js2')
break
case '4:4:4':
case 3:
params.push('-js3')
break
default:
console.warn(
`Warning: subSampling '${subSampling}' is unknown. Option is ignored, 'rawtherapee-cli' will use his own default (4:2:2).`
)
}
}
break
case 'png':
params.push('-n')
break
case 'tif':
case 'tiff':
params.push(`-t${zip && 'z'}`)
break
}
}
if (depth) params.push(`-b${depth}`)
if (output) {
params.push('-o')
params.push(output)
}
return params
}
const rawtherapee = (file, options = {}) => {
options = { ...defaultOptions, ...options }
const { onChange } = options
return new Promise((resolve, reject) => {
let ckf = file
let filename
if (!Array.isArray(file)) ckf = [file]
if ((filename = ckf.find((fl) => !fs.existsSync(fl)))) {
return reject(new Error(`File ${filename} not found`))
}
const params = o2cli(options)
params.push('-c')
params.push(file)
const rwtp = spawn('rawtherapee-cli', params)
const files = []
rwtp.stdout.on('data', (buf) => {
const data = buf.toString('utf8')
let ipath = /Processing: (.+)$/im.exec(data)
if (ipath) {
if (files.length) {
onChange({
status: 'complete',
file: files[files.length - 1]
})
}
files.push(ipath[1])
onChange({
status: 'processing',
file: ipath[1]
})
}
if (!ipath) {
ipath = /^RawTherapee, version ([0-9.]+), command line./im.exec(data)
if (ipath) {
onChange({
status: 'start',
version: ipath[1]
})
}
}
if (!ipath) {
ipath = /^"(.+)".*image skipped/im.exec(data)
if (ipath) {
onChange({
status: 'skipped',
file: ipath[1]
})
}
}
if (!ipath && process.env.DEBUG) console.warn('not handled', data)
})
rwtp.stderr.on('data', (data) => {
console.error(`stderr: ${data}`)
reject(new Error(data))
})
rwtp.on('error', (data) => {
console.error(`error: ${data}`)
reject(new Error(data))
})
rwtp.on('close', (code) => {
if (code > 0) return reject(new Error(`rawtherapee-cli process exited with code ${code}`))
if (files.length) {
onChange({
status: 'complete',
file: files[files.length - 1]
})
}
onChange({ status: 'idle', code })
resolve(files)
})
})
}
module.exports = rawtherapee
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