only apply QT_QPA_PLATFORMTHEME to cosmic desktop #353

	name: Check formatting

	on:
	workflow_dispatch:
	pull_request:
	branches:
	- main
	push:
	branches:
	- main

	jobs:
	check-format:
	runs-on: ci-ocf-nix-build
	steps:
	- uses: actions/checkout@v4
	# we need history to be able to get a list of changed files. a treeless
	# clone allows us to get full history without downloading massive
	# amounts of file changes.
	with:
	fetch-depth: 0
	filter: blob:none
	- name: Check formatting with nixfmt-tree
	run: \|
	# for pull requests, check against the target branch
	# for push, check against the previous commit
	if [ -n "${{ github.base_ref }}" ]; then
	base="origin/${{ github.base_ref }}"
	else
	base="HEAD^"
	fi

	# get a list of changes (add, copy, modify, rename) since branch
	# diverged from main
	# deleted files are not included to avoid treefmt errors
	changes=$(git diff --name-only --diff-filter=ACMR $base...HEAD)

	# only check formatting on changed files
	# we dont want to annoy people by failing a test on a pr due to
	# something that is not the fault of the pr
	# note: this still includes files where the formatting issues are not
	# in the changed lines of that file, thus not the fault of the pr
	if [ -n "$changes" ]; then
	nix develop -c treefmt --ci $changes
	fi

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