Added Makefile and version info

.gitignore

@@ -1,6 +1,9 @@
 # the binaries themselves
-/mtxconv
-/mtxconv.exe
+/mtxconv*
+
+# garbage
+Thumbs.db
+.DS_Store
 
 # test directory
 /test

Makefile

@@ -0,0 +1,58 @@
+GIT_BRANCH := $(shell git rev-parse --abbrev-ref HEAD)
+GIT_COMMIT := $(shell git rev-parse HEAD)
+GIT_COMMIT_SHORT := $(shell git rev-parse --short HEAD)
+GIT_VERSION := $(shell git describe --tags --always --dirty)
+GIT_TAG := $(shell git describe --tags)
+BUILD_TIME := $(shell date -u +"%Y-%m-%dT%H:%M:%S %Z")
+
+LDFLAGS := -ldflags '\
+-X "mtxconv/constants.GitBranch=$(GIT_BRANCH)" \
+-X "mtxconv/constants.GitCommit=$(GIT_COMMIT)" \
+-X "mtxconv/constants.GitCommitShort=$(GIT_COMMIT_SHORT)" \
+-X "mtxconv/constants.GitVersion=$(GIT_VERSION)" \
+-X "mtxconv/constants.GitTag=$(GIT_TAG)" \
+-X "mtxconv/constants.BuildTime=$(BUILD_TIME)"'
+BINARY_NAME = mtxconv
+GOCMD = go
+GOFORMAT = $(GOCMD) fmt
+GOBUILD = $(GOCMD) build -trimpath
+GOCLEAN = $(GOCMD) clean
+GOTEST = $(GOCMD) test
+GOGET = $(GOCMD) get
+GOBUILDEXT = $(GOBUILD) -o $(BINARY_NAME) $(LDFLAGS)
+
+.EXPORT_ALL_VARIABLES:
+ GOAMD64 = v3
+.PHONY: build buildall image test format clean run debug deps
+build:
+ $(GOBUILDEXT)
+ @echo Build completed…
+buildall:
+ @echo Building windows-x64…
+ @GOOS=windows GOARCH=amd64 $(GOBUILD) -o $(BINARY_NAME)-windows-x64.exe $(LDFLAGS)
+ @echo Building macos-x64…
+ @GOOS=darwin GOARCH=amd64 $(GOBUILD) -o $(BINARY_NAME)-macos-x64 $(LDFLAGS)
+ @echo Building macos-arm64…
+ @GOOS=darwin GOARCH=arm64 $(GOBUILD) -o $(BINARY_NAME)-macos-arm64 $(LDFLAGS)
+ @echo Building linux-x64…
+ @GOOS=linux GOARCH=amd64 $(GOBUILD) -o $(BINARY_NAME)-linux-x64 $(LDFLAGS)
+ @echo Building linux-arm64…
+ @GOOS=linux GOARCH=arm64 $(GOBUILD) -o $(BINARY_NAME)-linux-arm64 $(LDFLAGS)
+test: build
+ $(GOTEST) -v ./...
+format:
+ $(GOFORMAT) ./...
+clean:
+ $(GOCLEAN)
+ rm -f ./$(BINARY_NAME)
+ rm -f ./$(BINARY_NAME)-windows-x64.exe
+ rm -f ./$(BINARY_NAME)-macos-x64
+ rm -f ./$(BINARY_NAME)-macos-arm64
+ rm -f ./$(BINARY_NAME)-linux-x64
+ rm -f ./$(BINARY_NAME)-linux-arm64
+run: build
+ ./$(BINARY_NAME)
+debug: build
+ ./$(BINARY_NAME) --debug
+deps:
+ $(GOGET)

constants/constants.go

@@ -0,0 +1,46 @@
+package constants
+
+import (
+ "log"
+ "time"
+)
+
+var (
+ GitBranch = "n/a"
+ GitCommit = "n/a"
+ GitCommitShort = "n/a"
+ GitVersion = "n/a"
+ GitTag = "v0.0.0" // provide default value that can be parsed
+ BuildTime = "n/a"
+)
+
+const (
+ BuildTimeFormat = "2006-01-02T15:04:05 MST"
+)
+
+func ParseBuildTime() *time.Time {
+ parsed, err := time.Parse(BuildTimeFormat, BuildTime)
+ if err != nil {
+ log.Printf("ParseBuildTime: %v", err.Error())
+ return nil
+ }
+
+ return &parsed
+}
+
+func ParseBuildTimeLocal() *time.Time {
+ parsed, err := time.Parse(BuildTimeFormat, BuildTime)
+ if err != nil {
+ log.Printf("ParseBuildTimeLocal: %v", err.Error())
+ return nil
+ }
+
+ localLocation, err := time.LoadLocation("Local")
+ if err != nil {
+ log.Printf("ParseBuildTimeLocal: %v", err.Error())
+ return nil
+ }
+
+ localTime := parsed.In(localLocation)
+ return &localTime
+}