110 lines
3 KiB
Text
110 lines
3 KiB
Text
--!strict
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local fs = require("@lune/fs")
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local net = require("@lune/net")
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local stdio = require("@lune/stdio")
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local progress_bar = require("./util/progress")
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local result = require("./util/result")
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--- Fetches the given file raw from the jecs github
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local function fetch_raw(file: string): result.Identity<string>
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local res = net.request(`https://raw.githubusercontent.com/Ukendio/jecs/refs/heads/main/{file}`)
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if not res.ok then
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return result(false, `Not ok: {res.statusMessage} @ {res.statusCode}`)
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end
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return result(true, res.body)
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end
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local function save_if_diff(filepath: string, contents: string): result.Identity<nil>
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if not fs.metadata(filepath).exists then
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fs.writeFile(filepath, contents)
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return result(true, nil)
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end
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local existing = fs.readFile(filepath)
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if existing == contents then
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return result(false, "Contents are the same.")
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end
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fs.writeFile(filepath, contents)
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return result(true, nil)
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end
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local function round_to(n: number, places: number)
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local x = 10 ^ (places or 0)
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return math.round(n * x) / x
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end
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--- Synchronizes the required files from the jecs main branch.
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local function sync(to: string): result.Identity<boolean>
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local begin = os.clock()
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local progress = progress_bar
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.new()
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:withStage("init", "Initializing")
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:withStage("fetch", "Fetching latest files")
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:withStage("save", "Saving files")
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progress:start()
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if not fs.metadata(to).exists then
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fs.writeDir(to)
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end
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progress:nextStage()
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local includes = {
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"jecs.luau",
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"README.md",
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"CHANGELOG.md",
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"LICENSE",
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".luaurc",
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"default.project.json",
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}
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local sources = {}
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for _, file in includes do
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local contents = fetch_raw(file)
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if not contents.ok then
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progress:stop()
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stdio.ewrite(`🔥 Couldn't get the latest source for {file}:\n{contents.err}\n`)
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return result(false, `Couldn't get the latest source for {file}.`)
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end
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sources[file] = contents.val
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end
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progress:nextStage()
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local sources_modified = {}
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local any_changed = false
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for file, contents in sources do
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local res = save_if_diff(`{to}/{file}`, contents)
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if res.ok then
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any_changed = true
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table.insert(sources_modified, file)
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end
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end
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if not any_changed then
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progress:stop()
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local took = round_to((os.clock() - begin) * 1_000, 2)
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print(
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`🕛 Finished synchronizing, no changes since latest source {stdio.style("dim")}(took {took}ms){stdio.style(
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"reset"
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)}`
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)
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return result(true, false)
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end
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progress:stop()
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local took = round_to((os.clock() - begin) * 1_000, 2)
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print(`🪨 Finished synchronizing {stdio.style("dim")}(took {took}ms){stdio.style("reset")}`)
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print(`Changed files:`)
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print(sources_modified)
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return result(true, true)
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end
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return sync
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