Add makefile (#25)

* Add makefile

Adds makefile.

* Fixing gocmd

---------

Co-authored-by: juanito87 <juancruz.f87@gmail.com>

Author: linuskendall

.gitignore

@@ -1,3 +1,4 @@
 .idea
 
 go-carbites-commp
+cmd/data-prep/data-prep

Makefile

@@ -0,0 +1,33 @@
+GOCMD=go
+GOBUILD=$(GOCMD) build
+GOCLEAN=$(GOCMD) clean
+GOTEST=$(GOCMD) test
+GOGET=$(GOCMD) get
+GOINSTALL=$(GOCMD) install
+
+# These are the values we want to pass for VERSION and BUILD
+# git tag 1.0.1
+# git commit -am "One more change after the tags"
+VERSION=`git describe --tags`
+BRANCH=`git rev-parse --abbrev-ref HEAD`
+REVISION=`git rev-parse HEAD`
+BUILD=`date +%FT%T%z`
+
+LDFLAGS=-ldflags "-w -s -X main.Version=${VERSION} -X main.Build=${BUILD} -X main.Branch=${BRANCH} -X main.Revision=${REVISION}"
+BINDIR=.
+
+all: build install
+
+build:
+	cd cmd/data-prep; \
+	$(GOBUILD) $(LDFLAGS)
+
+install:
+	cd cmd/data-prep; \
+	$(GOINSTALL) $(LDFLAGS)
+
+clean:
+	if [ -f ./cmd/data-prep/data-prep ] ; then rm ./cmd/data-prep/data-prep ; fi
+
+.PHONY: clean install
+

cmd/data-prep/main.go

@@ -8,9 +8,21 @@ import (
 	"os"
 )
 
+var (
+	Version  = ""
+	Revision = ""
+	Build    = ""
+	Branch   = ""
+)
+
 func main() {
+	cli.VersionPrinter = func(cCtx *cli.Context) {
+		fmt.Printf("version=%s revision=%s build=%s branch=%s\n", cCtx.App.Version, Revision, Build, Branch)
+	}
+
 	app := cli.NewApp()
 	app.Name = "fil-dataprep"
+	app.Version = Version
 	app.Usage = "Chunking for CAR files + calculating commP. Splits a CAR file into smaller CAR files and at the same time also calculates commP for the smaller CAR files."
 	app.Commands = []*cli.Command{
 		split_and_commp.Cmd,