From b35c1f45a91774f77a767d4aa1c21dea6f29f74c Mon Sep 17 00:00:00 2001
From: Patrik Tesarik <patrik.tesarik@9elements.com>
Date: Fri, 10 Jun 2022 23:23:21 +0200
Subject: [PATCH] external/LinuxBoot: Deprecate GOPATH in u-root

This is a breaking change for now when using latest u-root main, which
is the default behavior in LinuxBoot.
u-root switched to golang modules and therefore `go get` is not the
standard behavior anymore. The workaround for this is to pull the
repository and build directly in the directory for now. Another apporach
would be to use `go install $pkg@latest` to install the binary at that
particular version into the golang binary path.

Currently missing is a control structure to enable the build process for
legacy versions <v0.8.0.

Signed-off-by: Patrik Tesarik <patrik.tesarik@9elements.com>
Change-Id: Ifa03504da6fa321ffc6d2506b27ebd2e3ed9961b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65090
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
---
 payloads/external/LinuxBoot/targets/u-root.mk | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/payloads/external/LinuxBoot/targets/u-root.mk b/payloads/external/LinuxBoot/targets/u-root.mk
index af2f95af6b..7e5444141d 100644
--- a/payloads/external/LinuxBoot/targets/u-root.mk
+++ b/payloads/external/LinuxBoot/targets/u-root.mk
@@ -40,11 +40,11 @@ endif
 get: version
 	if [ -d "$(go_path_dir)/src/$(uroot_package)" ]; then \
 	git -C $(go_path_dir)/src/$(uroot_package) checkout --quiet main; \
-	GOPATH=$(go_path_dir) go get -d -u -v $(uroot_package) || \
-	echo -e "\n<<u-root package update failed>>\n"; \
+	git -C $(go_path_dir)/src/$(uroot_package) pull || \
+	echo -e "\n<<Pulling u-root package from GitHub failed>>\n"; \
 	else \
-	GOPATH=$(go_path_dir) go get -d -u -v $(uroot_package) || \
-	(echo -e "\n<<failed to get u-root package. Please check your internet access>>\n" && \
+	git clone https://${uroot_package} ${go_path_dir}/src/${uroot_package} || \
+	(echo -e "\n<<Failed to clone u-root package. Please check your internet access>>\n" && \
 	exit 1); \
 	fi
 
@@ -52,10 +52,12 @@ checkout: get
 	git -C $(go_path_dir)/src/$(uroot_package) checkout --quiet $(CONFIG_LINUXBOOT_UROOT_VERSION)
 
 build: checkout
-	GOPATH=$(go_path_dir) go build -o $(uroot_bin) $(uroot_package)
+	cd ${go_path_dir}/src/${uroot_package}; \
+	go build -o ${uroot_bin} .
 
 u-root: build
-	GOARCH=$(ARCH-y) GOPATH=$(go_path_dir) $(uroot_bin) \
+	GOARCH=$(ARCH-y) $(uroot_bin) \
+	-uroot-source ${go_path_dir}/src/${uroot_package} \
 	$(uroot_args) -o $(project_dir)/initramfs_u-root.cpio $(uroot_cmds)
 
 .PHONY: all u-root build checkout get version