version

.circleci/config.yml

@@ -8,6 +8,6 @@ jobs:
       - checkout
       - run:
           name: Building XC
-          command: go build -o xc cmd/xc/main.go
+          command: ./build.sh
       - store_artifacts:
           path: /tmp/build/xc

build.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+kname=`uname -s`
+kver=`uname -r`
+karch=`uname -m`
+gitcommit=`git rev-list --tags --max-count=1`
+appver=`git describe --tags $gitcommit`
+appbuild=`git rev-list ${appver}.. --count`
+
+importroot="github.com/viert/xc/cli"
+
+go build -o xc \
+   -ldflags="-X $importroot.appVersion=$appver -X $importroot.appBuild=$appbuild -X $importroot.kernelName=$kname -X $importroot.kernelVersion=$kver -X $importroot.kernelArch=$karch" \
+   cmd/xc/main.go

cli/handlers.go

@@ -50,6 +50,7 @@ func (c *Cli) setupCmdHandlers() {
 	c.handlers["use_password_manager"] = c.doUsePasswordManager
 	c.handlers["distribute_type"] = c.doDistributeType
 	c.handlers["_passmgr_debug"] = c.doPassmgrDebug
+	c.handlers["version"] = c.doVersion
 
 	commands := make([]string, len(c.handlers))
 	i := 0
@@ -60,6 +61,10 @@ func (c *Cli) setupCmdHandlers() {
 	c.completer = newCompleter(c.store, commands)
 }
 
+func (c *Cli) doVersion(name string, argsLine string, args ...string) {
+	term.Successf("XC version %s\n", version())
+}
+
 func (c *Cli) doExit(name string, argsLine string, args ...string) {
 	c.stopped = true
 }

cli/version.go

@@ -0,0 +1,19 @@
+package cli
+
+import "fmt"
+
+var (
+	appVersion = ""
+	appBuild   = ""
+
+	kernelName    = ""
+	kernelVersion = ""
+	kernelArch    = ""
+)
+
+func version() string {
+	if appVersion == "" {
+		return "dev"
+	}
+	return fmt.Sprintf("%s-%s (%s %s %s)", appVersion, appBuild, kernelName, kernelVersion, kernelArch)
+}