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packages/lang/golang/golang-package.mk
Jeffery To 0fa7f3c882 golang: fix package clean / autoremove, add output whitespace 
go 1.11 added modules, which are cached locally. The go developers have
decided to make this cache read-only (golang/go#27455), which causes
problems with package clean / autoremove (#7635).

This adds a call to clear this cache right after building, as currently
there is no easy way to hook into autoremove (it may be possible to hook
into package clean).

This also adds whitespace (blank lines) to certain places in make
output, to aid debugging.

Signed-off-by: Jeffery To <jeffery.to@gmail.com>
2018-12-12 04:23:47 +08:00

320 lines
9 KiB
Makefile
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#
# Copyright (C) 2018 Jeffery To
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
ifeq ($(origin GO_INCLUDE_DIR),undefined)
GO_INCLUDE_DIR:=$(dir $(lastword $(MAKEFILE_LIST)))
endif
include $(GO_INCLUDE_DIR)/golang-values.mk
# Variables (all optional, except GO_PKG) to be set in package
# Makefiles:
#
# GO_PKG (required) - name of Go package
#
# Go name of the package.
#
# e.g. GO_PKG:=golang.org/x/text
#
#
# GO_PKG_INSTALL_EXTRA - list of regular expressions, default empty
#
# Additional files/directories to install. By default, only these
# files are installed:
#
# * Files with one of these extensions:
# .go, .c, .cc, .h, .hh, .proto, .s
#
# * Files in any 'testdata' directory
#
# e.g. GO_PKG_INSTALL_EXTRA:=example.toml marshal_test.toml
#
#
# GO_PKG_INSTALL_ALL - boolean (0 or 1), default false
#
# If true, install all files regardless of extension or directory.
#
# e.g. GO_PKG_INSTALL_ALL:=1
#
#
# GO_PKG_SOURCE_ONLY - boolean (0 or 1), default false
#
# If true, 'go install' will not be called. If the package does not
# (or should not) build any binaries, then specifying this option will
# save build time.
#
# e.g. GO_PKG_SOURCE_ONLY:=1
#
#
# GO_PKG_BUILD_PKG - list of build targets, default GO_PKG/...
#
# Build targets for compiling this Go package, i.e. arguments passed
# to 'go install'
#
# e.g. GO_PKG_BUILD_PKG:=github.com/debian/ratt/cmd/...
#
#
# GO_PKG_EXCLUDES - list of regular expressions, default empty
#
# Patterns to exclude from the build targets expanded from
# GO_PKG_BUILD_PKG.
#
# e.g. GO_PKG_EXCLUDES:=examples/
#
#
# GO_PKG_GO_GENERATE - boolean (0 or 1), default false
#
# If true, 'go generate' will be called on all build targets (as
# determined by GO_PKG_BUILD_PKG and GO_PKG_EXCLUDES). This is usually
# not necessary.
#
# e.g. GO_PKG_GO_GENERATE:=1
# Credit for this package build process (GoPackage/Build/Configure and
# GoPackage/Build/Compile) belong to Debian's dh-golang completely.
# https://anonscm.debian.org/cgit/pkg-go/packages/dh-golang.git
# for building packages, not user code
GO_PKG_PATH:=/usr/share/gocode
GO_PKG_BUILD_PKG?=$(GO_PKG)/...
GO_PKG_WORK_DIR_NAME:=.go_work
GO_PKG_WORK_DIR:=$(PKG_BUILD_DIR)/$(GO_PKG_WORK_DIR_NAME)
GO_PKG_BUILD_DIR:=$(GO_PKG_WORK_DIR)/build
GO_PKG_CACHE_DIR:=$(GO_PKG_WORK_DIR)/cache
GO_PKG_TMP_DIR:=$(GO_PKG_WORK_DIR)/tmp
GO_PKG_BUILD_BIN_DIR:=$(GO_PKG_BUILD_DIR)/bin$(if \
$(GO_HOST_TARGET_DIFFERENT),/$(GO_OS)_$(GO_ARCH))
GO_PKG_BUILD_DEPENDS_SRC:=$(STAGING_DIR)$(GO_PKG_PATH)/src
# sstrip causes corrupted section header size
ifneq ($(CONFIG_USE_SSTRIP),)
ifneq ($(CONFIG_DEBUG),)
GO_PKG_STRIP_ARGS:=--strip-unneeded --remove-section=.comment --remove-section=.note
else
GO_PKG_STRIP_ARGS:=--strip-all
endif
STRIP:=$(TARGET_CROSS)strip $(GO_PKG_STRIP_ARGS)
RSTRIP= \
export CROSS="$(TARGET_CROSS)" \
$(if $(PKG_BUILD_ID),KEEP_BUILD_ID=1) \
$(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
$(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
NM="$(TARGET_CROSS)nm" \
STRIP="$(STRIP)" \
STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
PATCHELF="$(STAGING_DIR_HOST)/bin/patchelf" \
$(SCRIPT_DIR)/rstrip.sh
endif
define GoPackage/GoSubMenu
SUBMENU:=Go
SECTION:=lang
CATEGORY:=Languages
endef
define GoPackage/Environment
GOOS=$(GO_OS) \
GOARCH=$(GO_ARCH) \
GO386=$(GO_386) \
GOARM=$(GO_ARM) \
GOMIPS=$(GO_MIPS) \
GOMIPS64=$(GO_MIPS64) \
CGO_ENABLED=1 \
CGO_CFLAGS="$(filter-out $(GO_CFLAGS_TO_REMOVE),$(TARGET_CFLAGS))" \
CGO_CPPFLAGS="$(TARGET_CPPFLAGS)" \
CGO_CXXFLAGS="$(filter-out $(GO_CFLAGS_TO_REMOVE),$(TARGET_CXXFLAGS))"
endef
# false if directory does not exist
GoPackage/is_dir_not_empty=$$$$($(FIND) $(1) -maxdepth 0 -type d \! -empty 2>/dev/null)
GoPackage/has_binaries=$(call GoPackage/is_dir_not_empty,$(GO_PKG_BUILD_BIN_DIR))
define GoPackage/Build/Configure
( \
cd $(PKG_BUILD_DIR) ; \
mkdir -p $(GO_PKG_BUILD_DIR)/bin $(GO_PKG_BUILD_DIR)/src \
$(GO_PKG_CACHE_DIR) $(GO_PKG_TMP_DIR) ; \
\
files=$$$$($(FIND) ./ \
-type d -a \( -path './.git' -o -path './$(GO_PKG_WORK_DIR_NAME)' \) -prune -o \
\! -type d -print | \
sed 's|^\./||') ; \
\
if [ "$(GO_PKG_INSTALL_ALL)" != 1 ]; then \
code=$$$$(echo "$$$$files" | grep '\.\(c\|cc\|go\|h\|hh\|proto\|s\)$$$$') ; \
testdata=$$$$(echo "$$$$files" | grep '\(^\|/\)testdata/') ; \
\
for pattern in $(GO_PKG_INSTALL_EXTRA); do \
extra=$$$$(echo "$$$$extra"; echo "$$$$files" | grep "$$$$pattern") ; \
done ; \
\
files=$$$$(echo "$$$$code"; echo "$$$$testdata"; echo "$$$$extra") ; \
files=$$$$(echo "$$$$files" | grep -v '^[[:space:]]*$$$$' | sort -u) ; \
fi ; \
\
echo "Copying files from $(PKG_BUILD_DIR) into $(GO_PKG_BUILD_DIR)/src/$(GO_PKG)" ; \
for file in $$$$files; do \
echo $$$$file ; \
dest=$(GO_PKG_BUILD_DIR)/src/$(GO_PKG)/$$$$file ; \
mkdir -p $$$$(dirname $$$$dest) ; \
$(CP) $$$$file $$$$dest ; \
done ; \
echo ; \
\
link_contents() { \
local src=$$$$1 ; \
local dest=$$$$2 ; \
local dirs dir base ; \
\
if [ -n "$$$$($(FIND) $$$$src -mindepth 1 -maxdepth 1 -name '*.go' \! -type d)" ]; then \
echo "$$$$src is already a Go library" ; \
return 1 ; \
fi ; \
\
dirs=$$$$($(FIND) $$$$src -mindepth 1 -maxdepth 1 -type d) ; \
for dir in $$$$dirs; do \
base=$$$$(basename $$$$dir) ; \
if [ -d $$$$dest/$$$$base ]; then \
case $$$$dir in \
*$(GO_PKG_PATH)/src/$(GO_PKG)) \
echo "$(GO_PKG) is already installed. Please check for circular dependencies." ;; \
*) \
link_contents $$$$src/$$$$base $$$$dest/$$$$base ;; \
esac ; \
else \
echo "...$$$${src#$(GO_PKG_BUILD_DEPENDS_SRC)}/$$$$base" ; \
$(LN) $$$$src/$$$$base $$$$dest/$$$$base ; \
fi ; \
done ; \
} ; \
\
if [ "$(GO_PKG_SOURCE_ONLY)" != 1 ]; then \
if [ -d $(GO_PKG_BUILD_DEPENDS_SRC) ]; then \
echo "Symlinking directories from $(GO_PKG_BUILD_DEPENDS_SRC) into $(GO_PKG_BUILD_DIR)/src" ; \
link_contents $(GO_PKG_BUILD_DEPENDS_SRC) $(GO_PKG_BUILD_DIR)/src ; \
else \
echo "$(GO_PKG_BUILD_DEPENDS_SRC) does not exist, skipping symlinks" ; \
fi ; \
else \
echo "Not building binaries, skipping symlinks" ; \
fi ; \
echo ; \
)
endef
# $(1) additional arguments for go command line (optional)
define GoPackage/Build/Compile
( \
cd $(GO_PKG_BUILD_DIR) ; \
export GOPATH=$(GO_PKG_BUILD_DIR) \
GOCACHE=$(GO_PKG_CACHE_DIR) \
GOTMPDIR=$(GO_PKG_TMP_DIR) \
GOROOT_FINAL=$(GO_TARGET_ROOT) \
CC=$(TARGET_CC) \
CXX=$(TARGET_CXX) \
$(call GoPackage/Environment) ; \
\
echo "Finding targets" ; \
targets=$$$$(go list $(GO_PKG_BUILD_PKG)) ; \
for pattern in $(GO_PKG_EXCLUDES); do \
targets=$$$$(echo "$$$$targets" | grep -v "$$$$pattern") ; \
done ; \
echo ; \
\
if [ "$(GO_PKG_GO_GENERATE)" = 1 ]; then \
echo "Calling go generate" ; \
go generate -v $(1) $$$$targets ; \
echo ; \
fi ; \
\
if [ "$(GO_PKG_SOURCE_ONLY)" != 1 ]; then \
echo "Building targets" ; \
case $(GO_ARCH) in \
arm) installsuffix="-installsuffix v$(GO_ARM)" ;; \
mips|mipsle) installsuffix="-installsuffix $(GO_MIPS)" ;; \
mips64|mips64le) installsuffix="-installsuffix $(GO_MIPS64)" ;; \
esac ; \
trimpath="all=-trimpath=$(GO_PKG_BUILD_DIR)" ; \
ldflags="all=-linkmode external -extldflags '$(TARGET_LDFLAGS)'" ; \
go install \
$$$$installsuffix \
-gcflags "$$$$trimpath" \
-asmflags "$$$$trimpath" \
-ldflags "$$$$ldflags" \
-v \
$(1) \
$$$$targets ; \
retval=$$$$? ; \
echo ; \
\
if [ "$$$$retval" -eq 0 ] && [ -z "$(call GoPackage/has_binaries)" ]; then \
echo "No binaries were generated, consider adding GO_PKG_SOURCE_ONLY:=1 to Makefile" ; \
echo ; \
fi ; \
\
echo "Cleaning module download cache (golang/go#27455)" ; \
go clean -modcache ; \
echo ; \
fi ; \
exit $$$$retval ; \
)
endef
define GoPackage/Build/InstallDev
$(call GoPackage/Package/Install/Src,$(1))
endef
define GoPackage/Package/Install/Bin
if [ -n "$(call GoPackage/has_binaries)" ]; then \
$(INSTALL_DIR) $(1)/usr/bin ; \
$(INSTALL_BIN) $(GO_PKG_BUILD_BIN_DIR)/* $(1)/usr/bin/ ; \
fi
endef
define GoPackage/Package/Install/Src
dir=$$$$(dirname $(GO_PKG)) ; \
$(INSTALL_DIR) $(1)$(GO_PKG_PATH)/src/$$$$dir ; \
$(CP) $(GO_PKG_BUILD_DIR)/src/$(GO_PKG) $(1)$(GO_PKG_PATH)/src/$$$$dir/
endef
define GoPackage/Package/Install
$(call GoPackage/Package/Install/Bin,$(1))
$(call GoPackage/Package/Install/Src,$(1))
endef
ifneq ($(GO_PKG),)
Build/Configure=$(call GoPackage/Build/Configure)
Build/Compile=$(call GoPackage/Build/Compile)
Build/InstallDev=$(call GoPackage/Build/InstallDev,$(1))
endif
define GoPackage
ifndef Package/$(1)/install
Package/$(1)/install=$$(call GoPackage/Package/Install,$$(1))
endif
endef
define GoBinPackage
ifndef Package/$(1)/install
Package/$(1)/install=$$(call GoPackage/Package/Install/Bin,$$(1))
endif
endef
define GoSrcPackage
ifndef Package/$(1)/install
Package/$(1)/install=$$(call GoPackage/Package/Install/Src,$$(1))
endif
endef
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