feat: 🔥 oh god

lib/comfpile/core.rb

@@ -1,4 +1,6 @@
 
+require 'digest'
+
 require_relative 'artefact_engine.rb'
 
 require_relative 'context.rb'
@@ -7,7 +9,9 @@ module Comfpile
     class Core
         attr_reader :processing_stack
 
-        def initialize()
+        def initialize(build_dir_path: File.join('/tmp/comfpile/', Digest::MD5.hexdigest(Dir.pwd)))
+            @build_dir_path = File.expand_path(build_dir_path)
+
             @artefact_engines = []
             @artefact_prio_counter = 0
 
@@ -15,44 +19,18 @@ module Comfpile
             # First query is stage, second filename.
             @artefacts = {}
 
-            @valid_contexts = {}
-
             # Stack-style processing queue for item processing
             @processing_stack = []
+
+            @context_key_provider = ContextKeyProvider.new()
         end
 
-        # Sanitize and unify context tags.
-        # This function will take either an array of tags, or a symbol,
-        # and sanitize and unify it to match a predictable context tag
-        # format.
-        #
-        # Context tags are symbols containing a list of unique configs
-        # types to use, separated by underscore ('_')
-        #
-        # @param [Array<Symbol,String>, Symbol] context The context to
-        #  sanitize
-        #
-        # @return [Symbol] Sanitized context. Unique, sorted list
-        #  of tags, joined into a Symbol.
-        #
-        def sanitize_context(context)
-            if context.nil?
-                return :default
-            elsif context.is_a? Array
-                new_context = context.uniq.sort.join('_').to_sym
-                @valid_contexts[new_context] = true
-                
-                return new_context
-            elsif context.is_a? Symbol
-                return context if @valid_contexts[context]
-                return sanitize_context(context.to_s.split('_'))
-            else
-                raise ArgumentError, "Unknown context key type supplied!"
-            end
+        def get_context_key(key)
+            return @context_key_provider.provide_context(key)
         end
 
         def find_artefact(stage, file = :none, context = :default)
-            context = sanitize_context(context)
+            context = get_context_key(context)
 
             @artefacts.dig(context, stage, file)
         end
@@ -73,7 +51,7 @@ module Comfpile
         # @return [Comfpile::Artefact, nil] Found or created artefact, or nil if nothing could be done
         #
         def craft_artefact(stage, file = :none, context = :default)
-            context = sanitize_context(context)
+            context = get_context_key(context)
 
             artefact = find_artefact(stage, file, context)
 
@@ -97,7 +75,7 @@ module Comfpile
         end
 
         def add_artefact(stage, file = :none, context = :default, engine: nil, artefact_class: Comfpile::Artefact)
-            context = sanitize_context context
+            context = get_context_key context
 
             return unless find_artefact(stage, file, context).nil?
 
@@ -165,6 +143,12 @@ module Comfpile
             nil
         end
 
+        def get_context_build_dir_path(context)
+            context = context.context if context.is_a? Artefact
+
+            File.expand_path(File.join(@build_dir_path, context.to_s))
+        end
+
         def execute_step
             return if @processing_stack.empty?
             # puts "Got #{@processing_stack.length} items..."
@@ -177,9 +161,14 @@ module Comfpile
 
             # puts "Processing artefact #{artefact.stage} #{artefact.target}"
 
-            begin
-                artefact.execute_step
-            rescue ArtefactExecSkipError
+            build_path = get_context_build_dir_path(artefact)
+            FileUtils.mkpath build_path
+
+            Dir.chdir build_path do
+                begin
+                    artefact.execute_step
+                rescue ArtefactExecSkipError
+                end
             end
 
             nil