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# Makefile for fscrypt
#
# Copyright 2017 Google Inc.
# Author: Joe Richey (joerichey@google.com)
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
NAME = fscrypt
INSTALL = install
DESTDIR = /usr/local/bin
CMD_PKG = github.com/google/$(NAME)/cmd/$(NAME)
SRC_FILES = $(shell find . -type f -name '*.go' -o -name "*.h" -o -name "*.c")
GO_FILES = $(shell find . -type f -name '*.go' -not -path "./vendor/*")
C_FILES = $(shell find . -type f -name "*.h" -o -name "*.c" -not -path "./vendor/*")
GO_PKGS = $(shell go list ./... | grep -v /vendor/)
# The flags code below lets the caller of the makefile change the build flags
# for fscrypt in a familiar manner.
# CFLAGS
# Change the flags passed to the C compiler. Default = "-O2 -Wall"
# For example:
# make fscrypt "CFLAGS = -O3 -Werror"
# builds the C code with high optimizations, and C warnings fail.
# LDFLAGS
# Change the flags passed to the C linker. Empty by default.
# For example:
# make fscrypt "LDFLAGS = -static -luuid -ldl -laudit -lpthread"
# will build a static binary.
# GO_FLAGS
# Change the flags passed to "go build". Empty by default.
# For example:
# make fscrypt "GO_FLAGS = -race"
# will build the Go code with race detection.
# GO_LINK_FLAGS
# Change the flags passed to the Go linker. Default = "-s -w"
# For example:
# make fscrypt GO_LINK_FLAGS=""
# will not strip the binary.
# Set the C flags so we don't need to set C flags in each CGO file.
CFLAGS ?= -O2 -Wall
export CGO_CFLAGS = $(CFLAGS)
# By default, we strip the binary to reduce size.
GO_LINK_FLAGS ?= -s -w
# Pass the version to the command line program (pulled from tags).
VERSION_FLAG = -X "main.version=$(shell git describe --tags)"
# Pass the current date and time to the command line program.
DATE_FLAG = -X "main.buildTime=$(shell date)"
# Add the version, date, and any specified LDFLAGS to any user-specified flags.
override GO_LINK_FLAGS += $(VERSION_FLAG) $(DATE_FLAG) -extldflags "$(LDFLAGS)"
# Add the link flags to any user-specified flags.
override GO_FLAGS += --ldflags '$(GO_LINK_FLAGS)'
.PHONY: default all
default: $(NAME)
all: update go format lint default
$(NAME): $(SRC_FILES)
go build $(GO_FLAGS) -o $(NAME) $(CMD_PKG)
.PHONY: clean
clean:
rm -rf $(NAME)
# Make sure go files build and tests pass.
.PHONY: go
go:
@go generate $(GO_FLAGS) $(GO_PKGS)
@go build $(GO_FLAGS) $(GO_PKGS)
@go test -p 1 $(GO_FLAGS) $(GO_PKGS)
# Update the vendored dependencies.
.PHONY: update
update:
@govendor init
@govendor fetch +missing
@govendor add +external
@govendor remove +unused
.PHONY: format
format:
@gofmt -l -s -w $(GO_FILES)
@clang-format -i -style=Google $(C_FILES)
# Run lint rules (skipping generated files)
.PHONY: lint
lint:
@go vet $(GO_PKGS)
@golint $(GO_PKGS) | grep -v "pb.go" | ./input_fail.py
@megacheck -unused.exported $(GO_PKGS)
# Check all files
.PHONY: check
check: all
@govendor list +missing +external +unused \
| ./input_fail.py "Incorrect vendored dependencies. Run \"make update\""
@git diff
@git status -s \
| ./input_fail.py "Files have changed unexpectedly. Run \"make all\""
.PHONY: install
install: $(NAME)
$(INSTALL) -d $(DESTDIR)
$(INSTALL) $(NAME) $(DESTDIR)
.PHONY: uninstall
uninstall:
rm -rf $(DESTDIR)/$(NAME)
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