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134 lines
4.1 KiB
Makefile
Executable File
134 lines
4.1 KiB
Makefile
Executable File
#!/usr/bin/make -f
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#
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# \brief Tool for downloading and patching 3rd-party source code
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# \author Norman Feske
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# \date 2014-05-07
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#
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VERBOSE ?= @
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ECHO := echo -e
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#
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# Always execute the $(TARGET) rule regardless of the supplied command-line
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# argument
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#
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TARGET := $(MAKECMDGOALS) default
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$(MAKECMDGOALS) default:
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# the single argument is the name of the port to prepare
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ARGUMENT := $(MAKECMDGOALS)
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PORT_NAME := $(firstword $(ARGUMENT))
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#
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# Determine Genode base directory based on the known location of the
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# 'create_builddir' tool within the Genode source tree
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#
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GENODE_DIR ?= $(realpath $(dir $(MAKEFILE_LIST))/../..)
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# compound directory where all 3rd-party source codes are installed
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CONTRIB_DIR ?= $(GENODE_DIR)/contrib
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# list of all repositories located at '<genode-dir>/repos/'
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REPOSITORIES ?= $(shell find $(GENODE_DIR)/repos -follow -mindepth 1 -maxdepth 1 -type d)
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# list of all repositories that contain ports of 3rd-party source code
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_REP_PORTS_DIRS := $(wildcard $(addsuffix /ports,$(REPOSITORIES)))
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# list of all available ports
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_PORTS := $(foreach DIR,$(_REP_PORTS_DIRS),$(wildcard $(DIR)/*.port))
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# port file to use
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PORT := $(filter %/$(PORT_NAME).port,$(_PORTS))
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# repository that contains the port description, used to look up patch files
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REP_DIR := $(realpath $(dir $(PORT))/..)
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# read hash that uniquely identifies the version to install
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HASH_FILE := $(wildcard $(PORT:.port=.hash))
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HASH := $(if $(HASH_FILE),$(shell cat $(HASH_FILE)),)
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# path to hash file relative to '<genode-dir>/repos', used for error messages
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_REL_HASH_FILE := $(notdir $(REP_DIR))/ports/$(notdir $(PORT))
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# directory where to install the port
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PORT_DIR := $(CONTRIB_DIR)/$(PORT_NAME)-$(HASH)
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# path to hash file generated during installation
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PORT_HASH_FILE := $(PORT_DIR)/$(PORT_NAME).hash
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#
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# Check validity of user input
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#
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ifeq ($(ARGUMENT),)
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$(TARGET): missing_argument
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missing_argument: usage
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@$(ECHO) "Error: Missing port name as argument"; false
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endif
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ifneq ($(words $(ARGUMENT)),1)
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$(TARGET): too_many_arguments
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too_many_arguments: usage
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@$(ECHO) "Error: Too many arguments specified, expecting one argument"; false
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endif
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ifeq ($(PORT),)
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$(TARGET): nonexisting_port
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nonexisting_port:
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@$(ECHO) "Error: Port $(PORT_NAME) does not exist"; false
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endif
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ifeq ($(HASH),)
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$(TARGET): nonexisting_hash
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nonexisting_hash:
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@$(ECHO) "Error: Port $(PORT_NAME) lacks a valid hash"; false
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endif
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usage:
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@$(ECHO)
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@$(ECHO) "--- download and patch 3rd-party source code ---"
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@$(ECHO) "usage: prepare_port <port-name> [CHECK_HASH=no]"
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@$(ECHO)
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#
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# Default rule that triggers the actual preparation steps
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#
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$(TARGET): _check_integrity
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_check_integrity : _install_in_port_dir
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ifneq ($(CHECK_HASH),no)
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$(VERBOSE)diff $(PORT_HASH_FILE) $(HASH_FILE) > /dev/null ||\
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($(ECHO) "Error: $(_REL_HASH_FILE) is out of date, expected" `cat $(PORT_HASH_FILE)` ""; false)
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endif
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#
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# During the preparatio steps, the port directory is renamed. We use the suffix
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# ".incomplete" to mark this transient state of the port directory.
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#
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_install_in_port_dir: $(PORT_DIR)
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@#\
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# if the transient directory already exists, reuse it as it may contain\
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# finished steps such as downloads. By reusing it, we avoid downloading\
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# the same files again and again while working on a port. However, in this\
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# case, we already have created an empty port directory via the $(PORT_DIR)\
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# rule below. To avoid having both the port directory and the transient\
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# port directory present, remove the just-created port directory.\
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#
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$(VERBOSE)(test -d $(PORT_DIR).incomplete && rmdir $(PORT_DIR)) || true
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@#\
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# If no transient directory exists, rename the port directory accordingly.\
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#
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$(VERBOSE)test -d $(PORT_DIR).incomplete || mv --force $(PORT_DIR) $(PORT_DIR).incomplete
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$(VERBOSE)$(MAKE) --no-print-directory \
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-f $(GENODE_DIR)/tool/ports/mk/install.mk \
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-C $(PORT_DIR).incomplete \
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PORT=$(PORT) VERBOSE=$(VERBOSE)
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@#\
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# The preparation finished successfully. So we can rename the transient\
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# directory to the real one.\
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#
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$(VERBOSE)mv $(PORT_DIR).incomplete $(PORT_DIR)
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$(PORT_DIR):
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$(VERBOSE)mkdir -p $@
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