Colored `with_terminal` for Pluto.jl

ColoredTerminal.jl

### A Pluto.jl notebook ###
# v0.15.1

using Markdown
using InteractiveUtils

# ╔═╡ 2da76520-1615-11ec-1ad7-8f93957b2e6e
import IOCapture

# ╔═╡ 7d63286d-2320-49bf-a8a1-e538f53ba829
import Crayons: Crayons, @crayon_str

# ╔═╡ 0b3b46a3-9b65-4958-8860-b663e1c1204b
import JSON3

# ╔═╡ 1810dc75-f4c1-4d3f-963d-0f881abeee19
import UUIDs: UUID

# ╔═╡ e3975303-9295-489a-b0a5-cb6624eab890
md"## Library"

# ╔═╡ 6124c693-f752-4036-a011-b06300f61a6d
"""
    force_color_stdout(f::Function)

Because `IOCapture`, even when specifying `color=true`, still just inherits the color property from the current stdout and stderr, we need to add one layer extra just to force color to true.

I hope nothing gets accidentally written to the streams I make, because they redirect to `devnull` 😅
"""
function force_color_stdout(f)
	default_stdout = stdout
 	default_stderr = stderr

	try
		redirect_stdout(IOContext(devnull, :color => true))
		redirect_stderr(IOContext(devnull, :color => true))
		f()
	finally
		redirect_stdout(default_stdout)
		redirect_stderr(default_stderr)
	end
end

# ╔═╡ c98e0f1b-c489-48ed-b69e-5cbc06267429
"""
    force_color_crayons(f::Function)

It never stops... Crayons also has some other way of determining if it should actually show the colors... I DON'T CARE I JUST WANT COLORS.

So I'm using `Crayons.FORCE_COLOR[] = true` and hope it listens
"""
function force_color_crayons(f)
	CRAYONS_PKGID = Base.PkgId(UUID("a8cc5b0e-0ffa-5ad4-8c14-923d3ee1735f"), "Crayons")
	if haskey(Base.loaded_modules, CRAYONS_PKGID)
		original_crayons_force_color = Crayons.FORCE_COLOR[] 
		try
			Crayons.FORCE_COLOR[] = true
			f()
		finally
			Crayons.FORCE_COLOR[] = original_crayons_force_color
		end
	else
		f()
	end
end

# ╔═╡ bf684e0c-e0f2-452c-b9a4-8452233ff920
Base.@kwdef struct TerminalOutput
	value
	output
end

# ╔═╡ d416b336-a6ee-4059-93af-08b12d59defd
function Base.show(io::IO, ::MIME"text/html", terminal_output::TerminalOutput)
	show(io, MIME("text/html"), HTML("""
	<script src="https://cdn.jsdelivr.net/npm/ansi_up@5.0.1/ansi_up.min.js"></script>
	<script type="text/javascript">
		var txt  = $(JSON3.write(terminal_output.output))

		var container = html`<pre style="
			max-height: 300px;
			overflow: auto;
			white-space: pre;
			color: white;
			background-color: black;
			border-radius: 3px;
			margin-block-end: 8px;
		"></pre>`
		container.innerHTML = AnsiUp.ansi_to_html(txt);
		return container
	</script>
	"""))
end

# ╔═╡ a0df0558-6b19-471d-b609-df3ee65dadbb
function with_terminal(f; color=true)
	if color
		force_color_stdout() do
			force_color_crayons() do
				value, output = IOCapture.capture(color=true) do
					f()
				end
				TerminalOutput(value=value, output=output)
			end
		end
	else
		value, output = IOCapture.capture() do
			f()
		end
		TerminalOutput(value=value, output=output)
	end
end

# ╔═╡ 3072a9cf-ad45-463c-866e-ed2bba434a95
md"## Examples"

# ╔═╡ 376b7763-dd17-4147-a246-a530ace698ec
with_terminal() do
	@info "Hey!"
end

# ╔═╡ 5cd4a175-2290-441a-989d-f26921d090bb
with_terminal(color=false) do
	@info "Hey!"
end

# ╔═╡ d501d4fd-975b-4459-b9e0-bfb8947ee538
with_terminal() do
	println("$(crayon"red")With Crayons! (in red)")
	println("$(crayon"blue")Blue!")
	println("$(crayon"reset")$(crayon"bold")Bold!")
end

# ╔═╡ 988d2c53-3f4f-40e8-8069-a24a8e10a8ca
# This command doesn't show colors for me... but maybe for someone else it works idk
with_terminal() do
	run(`ls -lh --color`)
end

# ╔═╡ e0d49688-ef83-4607-8747-7e4e4f0003c2
with_terminal() do
	@code_llvm [1,2,3,4,1//3] .* [2,3,4,.5]
end

# ╔═╡ 34a131cb-3f79-4fcf-91f2-828ee9115127
md"### Macro version because idk"

# ╔═╡ e8f72c6d-1b48-4b30-acee-4ec519682070
macro with_terminal(expr)
	quote
		$(with_terminal)() do
			$(esc(expr))
		end
	end
end

# ╔═╡ 329d47a4-7ae1-49fb-9411-55cbc113195b
@with_terminal @info "Hey!"

# ╔═╡ 00000000-0000-0000-0000-000000000001
PLUTO_PROJECT_TOML_CONTENTS = """
[deps]
Crayons = "a8cc5b0e-0ffa-5ad4-8c14-923d3ee1735f"
IOCapture = "b5f81e59-6552-4d32-b1f0-c071b021bf89"
JSON3 = "0f8b85d8-7281-11e9-16c2-39a750bddbf1"
UUIDs = "cf7118a7-6976-5b1a-9a39-7adc72f591a4"

[compat]
Crayons = "~4.0.4"
IOCapture = "~0.2.2"
JSON3 = "~1.9.1"
"""

# ╔═╡ 00000000-0000-0000-0000-000000000002
PLUTO_MANIFEST_TOML_CONTENTS = """
# This file is machine-generated - editing it directly is not advised

[[Crayons]]
git-tree-sha1 = "3f71217b538d7aaee0b69ab47d9b7724ca8afa0d"
uuid = "a8cc5b0e-0ffa-5ad4-8c14-923d3ee1735f"
version = "4.0.4"

[[Dates]]
deps = ["Printf"]
uuid = "ade2ca70-3891-5945-98fb-dc099432e06a"

[[IOCapture]]
deps = ["Logging", "Random"]
git-tree-sha1 = "f7be53659ab06ddc986428d3a9dcc95f6fa6705a"
uuid = "b5f81e59-6552-4d32-b1f0-c071b021bf89"
version = "0.2.2"

[[JSON3]]
deps = ["Dates", "Mmap", "Parsers", "StructTypes", "UUIDs"]
git-tree-sha1 = "b3e5984da3c6c95bcf6931760387ff2e64f508f3"
uuid = "0f8b85d8-7281-11e9-16c2-39a750bddbf1"
version = "1.9.1"

[[Logging]]
uuid = "56ddb016-857b-54e1-b83d-db4d58db5568"

[[Mmap]]
uuid = "a63ad114-7e13-5084-954f-fe012c677804"

[[Parsers]]
deps = ["Dates"]
git-tree-sha1 = "438d35d2d95ae2c5e8780b330592b6de8494e779"
uuid = "69de0a69-1ddd-5017-9359-2bf0b02dc9f0"
version = "2.0.3"

[[Printf]]
deps = ["Unicode"]
uuid = "de0858da-6303-5e67-8744-51eddeeeb8d7"

[[Random]]
deps = ["Serialization"]
uuid = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"

[[SHA]]
uuid = "ea8e919c-243c-51af-8825-aaa63cd721ce"

[[Serialization]]
uuid = "9e88b42a-f829-5b0c-bbe9-9e923198166b"

[[StructTypes]]
deps = ["Dates", "UUIDs"]
git-tree-sha1 = "8445bf99a36d703a09c601f9a57e2f83000ef2ae"
uuid = "856f2bd8-1eba-4b0a-8007-ebc267875bd4"
version = "1.7.3"

[[UUIDs]]
deps = ["Random", "SHA"]
uuid = "cf7118a7-6976-5b1a-9a39-7adc72f591a4"

[[Unicode]]
uuid = "4ec0a83e-493e-50e2-b9ac-8f72acf5a8f5"
"""

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