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feat: add dateLastModified auto-update mechanism
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| import {execFile} from "node:child_process"; | ||
| import {Um, Uf} from "5etools-utils"; | ||
| import * as Ub from "./util-brew.js"; | ||
| import fs from "fs"; | ||
| import hasha from "hasha"; | ||
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| const _LOG_TAG = `TIMESTAMPS`; | ||
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| const _UPDATE_TYPES = { | ||
| NONE: 0, | ||
| HASH: 1, | ||
| TIMESTAMP: 2, | ||
| }; | ||
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| async function pUpdateDir (dir) { | ||
| const promises = Uf.listJsonFiles(dir) | ||
| .map(async file => { | ||
| const fileData = Uf.readJSON(file, {isIncludeRaw: true}); | ||
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| const hasMeta = !Ub.FILES_NO_META[file]; | ||
| if (!fileData.json._meta && hasMeta) { | ||
| throw new Error(`File "${file}" did not have metadata!`); | ||
| } | ||
| if (!hasMeta) return; | ||
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| let updateType = _UPDATE_TYPES.NONE; | ||
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| // We hash the file *without* `_meta`, as `_meta` includes: | ||
| // - "dateAdded" and "dateLastModified", which we want to ignore for hashing for timestamp updates | ||
| // - the "_dateLastModifiedHash", which we want to ignore for hashing | ||
| // Unfortunately this means that updating the `_meta` does not trigger a hash change, but this is an | ||
| // acceptable sacrifice for the rest of the system being simpler. | ||
| const toHashObj = {...fileData.json}; | ||
| delete toHashObj._meta; | ||
| const expectedHash = (await hasha.async(JSON.stringify(toHashObj))).slice(0, 10); | ||
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| if (!fileData.json._meta._dateLastModifiedHash) { | ||
| updateType = _UPDATE_TYPES.HASH; | ||
| fileData.json._meta._dateLastModifiedHash = expectedHash; | ||
| } else if (expectedHash !== fileData.json._meta._dateLastModifiedHash) { | ||
| // Grab the last commit timestamp from the log. | ||
| // This is often a "junk" commit generated by cleaning (or indeed, timestamping) the file, but this is | ||
| // good enough. | ||
| const dateLastModified = await new Promise((resolve, reject) => { | ||
| execFile( | ||
| "git", | ||
| ["log", "-1", `--format="%ad"`, file], | ||
| { | ||
| windowsHide: true, | ||
| }, | ||
| (err, stdout, stderr) => { | ||
| if (err) return reject(err); | ||
| resolve(Math.round(new Date(stdout.trim()).getTime() / 1000)); | ||
| }, | ||
| ); | ||
| }); | ||
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| if (fileData.json._meta.dateLastModified < dateLastModified) { | ||
| updateType = _UPDATE_TYPES.TIMESTAMP; | ||
| fileData.json._meta.dateLastModified = dateLastModified; | ||
| fileData.json._meta._dateLastModifiedHash = expectedHash; | ||
| } | ||
| } | ||
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| if (updateType === _UPDATE_TYPES.NONE) return; | ||
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| const strContents = Ub.getCleanJson(fileData.json); | ||
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| await new Promise((resolve, reject) => { | ||
| fs.writeFile( | ||
| file, | ||
| strContents, | ||
| (err) => { | ||
| if (err) return reject(err); | ||
| resolve(); | ||
| }, | ||
| ); | ||
| }); | ||
|
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| Um.info( | ||
| _LOG_TAG, | ||
| updateType === _UPDATE_TYPES.HASH | ||
| ? `\t- Updated "_dateLastModifiedHash" for "${file}"...` | ||
| : `\t- Updated "dateLastModified" for "${file}"...`, | ||
| ); | ||
| }); | ||
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| await Promise.all(promises); | ||
| } | ||
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| async function main () { | ||
| await Uf.pRunOnDirs( | ||
| async (dir) => { | ||
| Um.info(_LOG_TAG, `Updating dateLastModified timestamps in dir "${dir}"...`); | ||
| await pUpdateDir(dir); | ||
| }, | ||
| { | ||
| isSerial: true, | ||
| }, | ||
| ); | ||
| } | ||
|
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| main().then(() => Um.info(_LOG_TAG, "Done!")); | ||
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