# == Variables for inter-project-communication

include $(MODDIR)/make/platform.mk

# -- What do I know about myself?
VERSION_FILE                := $(firstword $(wildcard VERSION) $(TOPDIR)/VERSION)
ifndef DEVELOPMENT
  ifeq ($(wildcard $(VERSION_FILE)),)
    DEVELOPMENT             := true
  else
    DEVELOPMENT             := $(shell grep -q 'dev' $(VERSION_FILE) && echo true)
  endif
endif

# -- Conclude the build system's location:
ifeq ($(PROJECTS_DIR),)
  ifeq ($(DEVELOPMENT),true)
    PROJECTS_DIR            ?= $(TOPDIR)/..
  else
    PROJECTS_DIR            ?= /opt
  endif
endif

# -- Query the build system about other projects:

ifndef WHICH
  WHICH                     := $(firstword $(wildcard /usr/bin/which) $(shell which which))
endif

ifeq ($(PYTHON),)
  PYTHON_VERSION            := 3
  PYTHON                    := $(shell $(WHICH) python$(PYTHON_VERSION))
else
  PYTHON_VERSION            := $(word 2,$(subst ., ,$(shell $(PYTHON) --version)))
endif

ifneq ($(TOPDIR),)
  proj_query_cmd             = $(PYTHON) $(MOD_SCRIPT_DIR)/projects.py -p $(PROJECTS_DIR) -t $(TOPDIR) $(PROJECTS_PY_EXTRA_ARGS)
  proj_query                 = $(shell $(proj_query_cmd) $(1))
  proj_dir                   = $(call proj_query,proj-dir $(1))
  htdocs_dir                 = $(call proj_query,htdocs-dir $(1))
endif