added GIT_COMMIT_DATE to migrator so that version contains something more human-readable than commit sha

Author: lukaszbudnik

Dockerfile

@@ -10,8 +10,9 @@ RUN go get -d -v github.com/lukaszbudnik/migrator
 RUN cd /go/src/github.com/lukaszbudnik/migrator && git checkout $SOURCE_BRANCH && ./setup.sh
 RUN cd /go/src/github.com/lukaszbudnik/migrator && \
   GIT_BRANCH=$(git branch | awk -v FS=' ' '/\*/{print $NF}' | sed 's|[()]||g') && \
+  GIT_COMMIT_DATE=$(git log -n1 --date=iso-strict | grep 'Date:' | sed 's|Date:\s*||g') && \
   GIT_COMMIT_SHA=$(git rev-list -1 HEAD) && \
-  go build -ldflags "-X main.GitCommitSha=$GIT_COMMIT_SHA -X main.GitBranch=$GIT_BRANCH"
+  go build -ldflags "-X main.GitCommitDate=$GIT_COMMIT_DATE -X main.GitCommitSha=$GIT_COMMIT_SHA -X main.GitBranch=$GIT_BRANCH"
 
 FROM alpine:3.8
 COPY --from=builder /go/src/github.com/lukaszbudnik/migrator/migrator /bin

TestDockerfile

@@ -10,17 +10,20 @@ ARG SOURCE_BRANCH=master
 RUN apk add git
 
 # A - install migrator from local source code
-#RUN mkdir -p /go/src/github.com/lukaszbudnik/migrator
-#COPY . /go/src/github.com/lukaszbudnik/migrator
+RUN mkdir -p /go/src/github.com/lukaszbudnik/migrator
+COPY . /go/src/github.com/lukaszbudnik/migrator
 
 # B - install migrator from $SOURCE_BRANCH branch
-RUN go get -d -v github.com/lukaszbudnik/migrator
-RUN cd /go/src/github.com/lukaszbudnik/migrator && git checkout $SOURCE_BRANCH && ./setup.sh
+#RUN go get -d -v github.com/lukaszbudnik/migrator
+#RUN cd /go/src/github.com/lukaszbudnik/migrator && git checkout $SOURCE_BRANCH
+
+RUN cd /go/src/github.com/lukaszbudnik/migrator && ./setup.sh
 
 RUN cd /go/src/github.com/lukaszbudnik/migrator && \
   GIT_BRANCH=$(git branch | awk -v FS=' ' '/\*/{print $NF}' | sed 's|[()]||g') && \
+  GIT_COMMIT_DATE=$(git log -n1 --date=iso-strict | grep 'Date:' | sed 's|Date:\s*||g') && \
   GIT_COMMIT_SHA=$(git rev-list -1 HEAD) && \
-  go build -ldflags "-X main.GitCommitSha=$GIT_COMMIT_SHA -X main.GitBranch=$GIT_BRANCH"
+  go build -ldflags "-X main.GitCommitDate=$GIT_COMMIT_DATE -X main.GitCommitSha=$GIT_COMMIT_SHA -X main.GitBranch=$GIT_BRANCH"
 
 FROM alpine:3.8
 COPY --from=builder /go/src/github.com/lukaszbudnik/migrator/migrator /bin

migrator.go

@@ -21,11 +21,14 @@ var GitBranch string
 // GitCommitSha stores git commit sha, value injected during production build
 var GitCommitSha string
 
+// GitCommitDate stores git commit date time, value injected during production build
+var GitCommitDate string
+
 func main() {
 
 	log.SetFlags(log.Ldate | log.Ltime | log.Lmicroseconds | log.LUTC)
 
-	log.Printf("INFO migrator version %v (%v)", GitBranch, GitCommitSha)
+	log.Printf("INFO migrator version %v, build %v, date %v", GitBranch, GitCommitSha, GitCommitDate)
 
 	flag := flag.NewFlagSet(os.Args[0], flag.ContinueOnError)
 	buf := new(bytes.Buffer)