From 934422d05e32d52bf396d99c4077a8afdea32a68 Mon Sep 17 00:00:00 2001
From: Jean Kahrs <j.kahrs@hosting.de>
Date: Tue, 1 Apr 2025 15:33:22 +0200
Subject: [PATCH] Explicitly set TMPDIR to ensure that it is a path where
 go-installed utils (pe. easyjson-bootstrap) can be executed. Fixes #955

---
 .gitignore |  1 +
 Makefile   | 11 ++++++++---
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/.gitignore b/.gitignore
index 680cc06..3ba4e09 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 bin/
+tmp/
 vendor/
 
 *.pem
diff --git a/Makefile b/Makefile
index 3db88cf..b228d7a 100644
--- a/Makefile
+++ b/Makefile
@@ -7,6 +7,7 @@ GOFMT := "$(GODIR)/gofmt"
 GOOS ?= linux
 GOARCH ?= amd64
 GOVERSION := $(shell "$(GO)" env GOVERSION | sed "s|go||" )
+TMPDIR := $(CURDIR)/tmp
 BINDIR := $(CURDIR)/bin
 VENDORDIR := "$(CURDIR)/vendor"
 VERSION := $(shell "$(CURDIR)/scripts/get-version.sh")
@@ -76,7 +77,7 @@ endif
 hook:
 	[ ! -d "$(CURDIR)/.git/hooks" ] || ln -sf "$(CURDIR)/scripts/pre-commit.hook" "$(CURDIR)/.git/hooks/pre-commit"
 
-$(GOPATHBIN)/easyjson: go.mod go.sum
+$(GOPATHBIN)/easyjson: go.mod go.sum | $(TMPDIR)
 	$(GO) install github.com/mailru/easyjson/...
 
 $(GOPATHBIN)/protoc-gen-go: go.mod go.sum
@@ -124,7 +125,7 @@ coverhtml: vet
 
 %_easyjson.go: %.go $(GOPATHBIN)/easyjson | $(PROTO_GO_FILES)
 	rm -f easyjson-bootstrap*.go
-	PATH="$(GODIR)":$(PATH) "$(GOPATHBIN)/easyjson" -all $*.go
+	TMPDIR=$(TMPDIR) PATH="$(GODIR)":$(PATH) "$(GOPATHBIN)/easyjson" -all $*.go
 
 %.pb.go: %.proto $(GOPATHBIN)/protoc-gen-go $(GOPATHBIN)/protoc-gen-go-grpc
 	PATH="$(GODIR)":"$(GOPATHBIN)":$(PATH) protoc \
@@ -142,12 +143,15 @@ common: $(EASYJSON_GO_FILES) $(PROTO_GO_FILES) $(GRPC_PROTO_GO_FILES)
 # Optimize easyjson files that could call generated functions instead of duplicating code.
 	for file in $(EASYJSON_FILES); do \
 		rm -f easyjson-bootstrap*.go; \
-		PATH="$(GODIR)":$(PATH) "$(GOPATHBIN)/easyjson" -all $$file; \
+		TMPDIR=$(TMPDIR) PATH="$(GODIR)":$(PATH) "$(GOPATHBIN)/easyjson" -all $$file; \
 	done
 
 $(BINDIR):
 	mkdir -p "$(BINDIR)"
 
+$(TMPDIR):
+	mkdir -p "$(TMPDIR)"
+
 client: $(BINDIR)/client
 
 $(BINDIR)/client: go.mod go.sum $(CLIENT_GO_FILES) $(COMMON_GO_FILES) | $(BINDIR)
@@ -168,6 +172,7 @@ clean:
 	rm -f "$(BINDIR)/client"
 	rm -f "$(BINDIR)/signaling"
 	rm -f "$(BINDIR)/proxy"
+	rm -rf "$(TMPDIR)"
 
 clean-generated: clean
 	rm -f $(EASYJSON_GO_FILES) $(PROTO_GO_FILES) $(GRPC_PROTO_GO_FILES)