check latest tag (#17)

Author: chrismwendt

.buildkite/check-latest-tag.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+
+set -ex
+
+cd "$(dirname "${BASH_SOURCE[0]}")"/..
+
+get_latest() {
+  git tag |
+    # drop `v` prefix
+    grep "^v" |
+    cut -c2- |
+
+    # sort by semantic version
+    sort -t "." -k1,1n -k2,2n -k3,3n |
+
+    # last
+    tail -n 1 |
+
+    # drop newline
+    tr -d '\n'
+}
+
+latest="$(get_latest)"
+
+git grep --line-number "# LATEST" examples >want.txt
+git grep --line-number "\"$latest\" # LATEST" examples >got.txt
+
+if ! git diff --no-index --exit-code want.txt got.txt; then
+  echo ""
+  echo "❌ Detected old versions! Make sure that all versions \`version = \"...\" # LATEST\` match the latest git tag: $latest"
+  exit 1
+fi

.buildkite/pipeline.yaml

@@ -7,3 +7,5 @@ steps:
     command: .buildkite/shellcheck.sh
   - label: ":terraform:"
     command: .buildkite/terraform-validate.sh
+  - label: ":lint-roller:"
+    command: .buildkite/check-latest-tag.sh

examples/multiple-executors/main.tf

@@ -6,14 +6,14 @@ locals {
 
 module "networking" {
   source  = "sourcegraph/executors/aws//modules/networking"
-  version = "0.0.21"
+  version = "0.0.21" # LATEST
 
   availability_zone = local.availability_zone
 }
 
 module "docker-mirror" {
   source  = "sourcegraph/executors/aws//modules/docker-mirror"
-  version = "0.0.21"
+  version = "0.0.21" # LATEST
 
   vpc_id              = module.networking.vpc_id
   subnet_id           = module.networking.subnet_id
@@ -23,7 +23,7 @@ module "docker-mirror" {
 
 module "executors-codeintel" {
   source  = "sourcegraph/executors/aws//modules/executors"
-  version = "0.0.21"
+  version = "0.0.21" # LATEST
 
   vpc_id                              = module.networking.vpc_id
   subnet_id                           = module.networking.subnet_id
@@ -38,7 +38,7 @@ module "executors-codeintel" {
 
 module "executors-batches" {
   source  = "sourcegraph/executors/aws//modules/executors"
-  version = "0.0.21"
+  version = "0.0.21" # LATEST
 
   vpc_id                              = module.networking.vpc_id
   subnet_id                           = module.networking.subnet_id

examples/single-executor/main.tf

@@ -5,7 +5,7 @@ locals {
 
 module "executors" {
   source  = "sourcegraph/executors/aws"
-  version = "0.0.21"
+  version = "0.0.21" # LATEST
 
   availability_zone                            = local.availability_zone
   executor_instance_tag                        = "codeintel-prod"