TemplateTest/lune/pkg/progress.luau
2025-04-05 18:29:25 +02:00

135 lines
4.5 KiB
Text

--!strict
--> Inspired by Rokit's progress bar: https://github.com/rojo-rbx/rokit/blob/a303faf/src/util/progress.rs
-- Original: https://github.com/pesde-pkg/tooling/blob/main/toolchainlib/src/utils/progress.luau
--[[
MIT License
Copyright (c) 2024 pesde-pkg
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
]]
local stdio = require("@lune/stdio")
local task = require("@lune/task")
local result = require("./result")
-- FORMAT: {SPINNER} {MESSAGE} {BAR} {STAGE}
local SPINNERS = { "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏" }
local BAR_COMPONENT = "▇"
local MAX_BAR_LENGTH = 30
local ProgressBar = {}
type ProgressBar = {
stages: { { tag: string, message: string } },
current_stage_index: number,
finished: boolean,
paused: boolean,
thread: thread?,
}
export type ProgressBarImpl = typeof(setmetatable({} :: ProgressBar, { __index = ProgressBar }))
function ProgressBar.new(): ProgressBarImpl
return setmetatable(
{
stages = {},
current_stage_index = 1,
finished = false,
} :: ProgressBar,
{
__index = ProgressBar,
}
)
end
function ProgressBar.with_stage(self: ProgressBarImpl, tag: string, msg: string): ProgressBarImpl
table.insert(self.stages, { tag = tag, message = msg })
return self
end
function ProgressBar.start(self: ProgressBarImpl)
local BAR_LENGTH = MAX_BAR_LENGTH // #self.stages
local TOTAL_BAR_LENGTH = BAR_LENGTH * #self.stages
local BAR = string.rep(BAR_COMPONENT, BAR_LENGTH)
local MAX_MESSAGE_LENGTH = 0
for _, stage in self.stages do
local len = #stage.message
if len > MAX_MESSAGE_LENGTH then
MAX_MESSAGE_LENGTH = len
end
end
self.thread = task.spawn(function()
while true do
if self.paused then
task.wait(0.1)
continue
end
for _, spinner in SPINNERS do
if self.finished then
return
end
local stage = self.stages[self.current_stage_index]
stdio.ewrite(
`\x1b[2K\x1b[0G{stdio.color("cyan")}{spinner} {stage.message}{stdio.color("reset")}{string.rep(
" ",
MAX_MESSAGE_LENGTH - #stage.message
)} [{stdio.style("dim")}{string.rep(BAR, self.current_stage_index)}{string.rep(
" ",
TOTAL_BAR_LENGTH - (BAR_LENGTH * self.current_stage_index)
)}{stdio.style("reset")}] {stdio.style("bold")}{self.current_stage_index} / {#self.stages}{stdio.style(
"reset"
)}`
)
task.wait(0.1)
end
end
end)
end
function ProgressBar.stop(self: ProgressBarImpl)
-- Trigger upvalue, kill thread and clean progress bar remnant
self.finished = true
stdio.ewrite("\x1b[2K\x1b[0G")
end
function ProgressBar.pause(self: ProgressBarImpl)
self.paused = true
stdio.ewrite("\x1b[2K\x1b[0G")
end
function ProgressBar.unpause(self: ProgressBarImpl)
self.paused = false
end
function ProgressBar.next_stage(self: ProgressBarImpl): result.Identity<nil>
local inc = self.current_stage_index + 1
if inc > #self.stages then
-- TODO: Make this a result
self.finished = true
return result(false, "OutOfBounds - Attempted to advance past last stage")
end
self.current_stage_index = inc
return result(true, nil)
end
return ProgressBar