make install review: requires root access & assumes running in Github Actions

[mratsim]

Linked to #298

Root access

Currently for make install, we require write access to /opt which is root-only

raiko/makefile

Lines 2 to 3 in 546ab19

	install:
	./script/install.sh $(TARGET)

raiko/script/install.sh

Lines 23 to 24 in 546ab19

	# Extract the downloaded archive
	tar -xzf /tmp/riscv32-unknown-elf.gcc-13.2.0.tar.gz -C /opt/riscv/

Instead we should:

• test if riscv32-unknown-elf-gcc is in PATH
• if not install it in $HOME/.local/bin following Freedesktop XDG specification (https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html). Or decide to have our own environment like $HOME/raiko/bin.
• Add the location to $PATH in Github Action script

Assumes running in Github Action

The SP1 part is assuming /home/runner and $GITHUB_PATH which are Github Action specific.

raiko/script/install.sh

Lines 50 to 64 in 546ab19

	# SP1
	if [ -z "$1" ] || [ "$1" == "sp1" ]; then
	curl -L https://sp1.succinct.xyz | bash
	if [ -z "${CI}" ] || [ ! command -v sp1up &> /dev/null ]; then
	# Need to add sp1up to the path here
	PROFILE=$HOME/.bashrc
	echo ${PROFILE}
	source ${PROFILE}
	sp1up
	else
	echo "/home/runner/.config/.sp1/bin" >> $GITHUB_PATH
	/home/runner/.config/.sp1/bin/sp1up
	fi
	fi