Precompile scripts leaves files behind

[giordano]

Plots.jl/src/init.jl

Lines 102 to 112 in 0d95673

	fn = tempname()
	pl = current()
	show(devnull, pl)
	# FIXME: pgfplotsx requires bug
	backend_name() === :pgfplotsx && return
	if backend_name() === :unicodeplots
	savefig(pl, "$fn.txt")
	return
	end
	showable(MIME"image/png"(), pl) && savefig(pl, "$fn.png")
	showable(MIME"application/pdf"(), pl) && savefig(pl, "$fn.pdf")

The way you're using tempname(), by not using the name as is but appending an extension, causes the cleanup of the file to never happen, and so repeatedly precompiling the package causes lots of files to pile up, especially on shared systems which are reboot infrequently.

Instead, you should probably be creating a temporary directory with mktempdir() and write files in there, to make sure everything inside the directory is cleaned up at the end of the process.

[giordano]

Why this is still an issue in v1.40.8 which was released 7 months after #4870 was merged?