Convert build script to make target

Author: spenserblack

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
           go-version: '1.20'
           cache: true
       - name: Build Release Assets
-        run: ./build.sh
+        run: make all
         env:
           CGO_ENABLED: '0'
       - name: Publish GitHub Release

Makefile

@@ -1,8 +1,16 @@
 FILES = $(shell find -type f -name '*.go')
+DISTRIBUTIONS = darwin-amd64 linux-amd64 windows-amd64 openbsd-amd64 freebsd-amd64 netbsd-amd64 linux-386 windows-386 openbsd-386 freebsd-386 netbsd-386
+targets = $(foreach distribution,$(DISTRIBUTIONS),dist/git-lzc-$(distribution)$(if $(findstring windows,$(distribution)),.exe))
 
 git-lzc: $(FILES) go.mod go.sum
 	go build ./cmd/git-lzc/
 
+$(targets): dist/git-lzc-%: $(FILES) go.mod go.sum
+	GOOS=$(word 1, $(subst -, ,$*)) GOARCH=$(word 1, $(subst ., ,$(word 2, $(subst -, ,$*)))) go build -o $@ ./cmd/git-lzc/
+
+.PHONY: all
+all: $(targets)
+
 .PHONY: install
 install: git-lzc
 	cp git-lzc /usr/local/bin/