From f13072cc038117e7cf970b6a084b5fd555fe7e22 Mon Sep 17 00:00:00 2001
From: Pavel Vorobyov <p.vorobyov@corp.mail.ru>
Date: Tue, 8 Oct 2019 13:38:55 +0300
Subject: [PATCH] version

---
 .circleci/config.yml |  2 +-
 build.sh             | 14 ++++++++++++++
 cli/handlers.go      |  5 +++++
 cli/version.go       | 19 +++++++++++++++++++
 4 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100755 build.sh
 create mode 100644 cli/version.go

diff --git a/.circleci/config.yml b/.circleci/config.yml
index b0c32b6..0b09e04 100644
--- a/.circleci/config.yml
+++ b/.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
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..97ae74e
--- /dev/null
+++ b/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
diff --git a/cli/handlers.go b/cli/handlers.go
index cfd217e..fb3d052 100644
--- a/cli/handlers.go
+++ b/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
 }
diff --git a/cli/version.go b/cli/version.go
new file mode 100644
index 0000000..69472ac
--- /dev/null
+++ b/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)
+}