Add support for different prompt colors on different hosts

Makefile

@@ -2,6 +2,7 @@ BUILD_COMMIT       = $(shell git rev-parse HEAD)
 BASE_IMAGE         = registry.fedoraproject.org/fedora-toolbox
 BASE_IMAGE_VERSION = $(shell cat /etc/os-release | grep VERSION_ID | cut -d = -f 2)
 REPOSITORY         = localhost/toolbox-dev-env
+STARSHIP_COLOR     = $(shell cat starship.$(HOSTNAME).color)
 
 .PHONY: container
 container:
@@ -29,5 +30,7 @@ scripts:
 	cp bashrc.sh ~/.bashrc
 	cp inputrc ~/.inputrc
 	cp starship.toml ~/.config/starship.toml
+        sed -i "s/#XXXXXX/$(STARSHIP_COLOR)/g" ~/.config/starship.toml
 
 install: container scripts;
+