add pipeline and script to add commit

Signed-off-by: Dummy User <dummy@concourse.com>

Author: Dummy User

app.go

@@ -5,6 +5,7 @@ import (
 	"io/ioutil"
 	"log"
 	"strconv"
+	"strings"
 )
 
 func main() {
@@ -14,7 +15,8 @@ func main() {
 		return
 	}
 
-	message, err := ConvertToMessage(string(file))
+	commitNum := strings.TrimSuffix(string(file), "\n")
+	message, err := ConvertToMessage(commitNum)
 	if err != nil {
 		log.Fatal(err)
 		return
@@ -29,5 +31,5 @@ func ConvertToMessage(commit string) (string, error) {
 		return "", err
 	}
 
-	return fmt.Sprintf("This is commit number %d", commitNumber), nil
+	return fmt.Sprintf("This app is using commit number %d.\n", commitNumber), nil
 }

app_test.go

@@ -10,7 +10,7 @@ func TestCalculate(t *testing.T) {
 		t.Error("Converting to message failed")
 	}
 
-	if message != "This is commit number 1" {
+	if message != "This app is using commit number 1.\n" {
 		t.Error("Did not match expected message")
 	}
 

ci/demo-pipeline.yml

@@ -0,0 +1,81 @@
+---
+resource_types:
+- name: semver
+  type: registry-image
+  source:
+    repository: concourse/semver-resource
+
+resources:
+- name: app
+  type: git
+  source:
+    uri: git@github.com:clarafu/concourse-demo.git
+    branch: master
+    private_key: ((app-repo-key))
+
+- name: version
+  type: semver
+  source:
+    driver: git
+    uri: git@github.com:clarafu/concourse-demo.git
+    branch: version
+    file: version
+    private_key: ((app-repo-key))
+
+- name: app-pre-release
+  type: github-release
+  source:
+    owner: clarafu
+    repository: concourse-demo
+    access_token: ((dummy-user-access-token))
+    pre-release: true
+
+- name: app-release
+  type: github-release
+  source:
+    owner: clarafu
+    repository: concourse-demo
+    access_token: ((dummy-user-access-token))
+
+jobs:
+- name: test
+  plan:
+  - get: app
+    trigger: true
+  - task: test-app
+    file: app/ci/tasks/test-app.yml
+
+- name: bump-version
+  plan:
+  - put: version
+    params: {bump: major}
+
+- name: build
+  plan:
+  - get: version
+    passed: [bump-version]
+  - get: app
+    passed: [test]
+    trigger: true
+  - task:
+    file: app/ci/tasks/build-app.yml
+  - put: app-pre-release
+    params:
+      name: version/version
+      tag: version/version
+      globs:
+      - built-app/app
+
+- name: deploy
+  plan:
+  - get: version
+    passed: [build]
+  - get: app-pre-release
+    passed: [build]
+  - put: app-release
+    params:
+      name: version/version
+      tag: version/version
+      globs:
+      - app-pre-release/app
+

ci/tasks/build-app.yml

@@ -0,0 +1,15 @@
+---
+platform: linux
+
+image_resource:
+  type: registry-image
+  source: {repository: golang}
+
+inputs:
+- name: app
+
+outputs:
+- name: built-app
+
+run:
+  path: app/ci/tasks/scripts/build-app

ci/tasks/scripts/build-app

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -e -x
+
+cd app/
+go build app.go
+mv app ../built-app/

ci/tasks/scripts/test-app

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+set -e -x
+
+cd app/
+go test

ci/tasks/test-app.yml

@@ -0,0 +1,12 @@
+---
+platform: linux
+
+image_resource:
+  type: registry-image
+  source: {repository: golang}
+
+inputs:
+- name: app
+
+run:
+  path: app/ci/tasks/scripts/test-app

scripts/add_commit

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+set -ex
+
+cd $(dirname $0)/..
+
+num=$(($( cat commit.txt) + 1))
+echo $num > commit.txt
+
+git config user.email "dummy@example.com"
+git config user.name "Dummy User"
+git add commit.txt
+git ci -m "increment commit to $num"
+
+ssh-agent bash -c 'ssh-add scripts/app_private_key; git push origin master'