Group the dependencies' updates done by Renovate

This was done to reduce the number of dependency update commits that are
eventually merged into the default branch's commit history.

The custom regular expression package managers/managers were written to
enable Renovate to manage updates for Packer, Packer plugins, and
Vagrant. The versioning for Vagrant is set to loose because, unlike
Packer, Vagrant doesn't have an explicit setting denoting the version of
it that should be used. The versioning for Packer and its plugins is set
to 'hashicorp' because Packer's version setting is very similar to the
one used by Terraform, which is what this built-in versioning was
created around.

Author: cavcrosby

k8s-nodes.pkr.hcl

@@ -1,15 +1,18 @@
 packer {
   required_plugins {
     qemu = {
+      # renovate: datasource=github-releases versioning=hashicorp
       version = "= 1.0.9"
       source  = "github.com/hashicorp/qemu"
     }
     ansible = {
+      # renovate: datasource=github-releases versioning=hashicorp
       version = "= 1.1.0"
       source  = "github.com/hashicorp/ansible"
     }
   }
 
+  # renovate: datasource=github-releases packageName=hashicorp/packer versioning=hashicorp
   required_version = "~> 1.10.0"
 }
 

renovate.json

@@ -1,12 +1,89 @@
 {
     "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+    "separateMajorMinor": false,
+    "commitMessagePrefix": "",
     "extends": [
         "config:recommended"
     ],
     "pre-commit": {
         "enabled": true
     },
-    "lockFileMaintenance": {
-        "enabled": true
-    }
+    "customManagers": [
+        {
+            "customType": "regex",
+            "managerFilePatterns": [
+                "scripts/chk-vagrant-pkg"
+            ],
+            "matchStrings": [
+                "# renovate: datasource=(?<datasource>\\S+) packageName=(?<packageName>\\S+) versioning=(?<versioning>\\S+)\\nreadonly VAGRANT_UPSTREAM_VERSION=\"(?<currentValue>\\S+)\""
+            ]
+        },
+        {
+            "customType": "regex",
+            "packageNameTemplate": "{{#if (equals packageName 'hashicorp/packer')}}{{{packageName}}}{{else}}{{{replace 'hashicorp/' 'hashicorp/packer-plugin-' packageName}}}{{/if}}",
+            "managerFilePatterns": [
+                "k8s-nodes.pkr.hcl"
+            ],
+            "matchStrings": [
+                "# renovate: datasource=(?<datasource>\\S+) packageName=(?<packageName>\\S+) versioning=(?<versioning>\\S+)\\n\\s*required_version\\s+=\\s+\"(?<currentValue>.+)\"",
+                "# renovate: datasource=(?<datasource>\\S+) versioning=(?<versioning>\\S+)\\n\\s*version\\s+=\\s+\"(?<currentValue>.+)\"\\n\\s*source\\s+=\\s+\"github.com\/(?<packageName>.+)\""
+            ]
+        }
+    ],
+    "packageRules": [
+        {
+            "groupName": "dependencies",
+            "matchFileNames": [
+                "requirements.txt"
+            ]
+        },
+        {
+            "groupName": "dependencies",
+            "matchManagers": [
+                "ansible-galaxy",
+                "terraform"
+            ]
+        },
+        {
+            "groupName": "dependencies",
+            "matchDatasources": [
+                "python-version"
+            ]
+        },
+        {
+            "groupName": "dependencies",
+            "matchPackageNames": [
+                "hashicorp/packer",
+                "hashicorp/packer-plugin-qemu",
+                "hashicorp/packer-plugin-ansible"
+            ]
+        },
+        {
+            "groupName": "development dependencies",
+            "matchFileNames": [
+                "requirements-dev.txt",
+                "mitmproxy/requirements-dev.txt"
+            ]
+        },
+        {
+            "groupName": "development dependencies",
+            "matchManagers": [
+                "bundler",
+                "npm",
+                "pre-commit"
+            ]
+        },
+        {
+            "groupName": "development dependencies",
+            "matchDatasources": [
+                "node-version"
+            ]
+        },
+        {
+            "groupName": "development dependencies",
+            "matchPackageNames": [
+                "hashicorp/vagrant"
+            ]
+        }
+    ]
 }

scripts/chk-vagrant-pkg

@@ -21,6 +21,7 @@ PROGNAME="$(basename "$0")"
 readonly PROGNAME
 readonly FALSE=0
 readonly TRUE=1
+# renovate: datasource=github-releases packageName=hashicorp/vagrant versioning=loose
 readonly VAGRANT_UPSTREAM_VERSION="2.4.1"
 readonly VAGRANT_APT_REPO="apt.releases.hashicorp.com"