Add a set-vendir-channels-path-to-imgpkg-bundle action

Author: lnhrdt

CHANGELOG.md

@@ -9,6 +9,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Added
+
+- Initial release of the set-vendir-channels-path-to-imgpkg-bundle action.
+
 ## [1.1.0] - 2024-11-10
 
 ### Added

next-image-tag-number/action.sh

@@ -6,8 +6,8 @@ else
   IMAGE_REPOSITORY_URL="$1"
 fi
 BEARER_TOKEN=$2
-INITIAL_NUMBER=${3:-1}
-TAG_PREFIX=${4:-"build-"}
+INITIAL_NUMBER=${3}
+TAG_PREFIX=${4}
 
 if [ -n "$BEARER_TOKEN" ]; then
   AUTH_HEADER="-H \"Authorization: Bearer ${BEARER_TOKEN}\""

set-vendir-channels-path-to-imgpkg-bundle/Dockerfile

@@ -0,0 +1,10 @@
+FROM alpine:latest
+RUN apk add --update --no-cache --no-progress yq
+
+# perl-utils: https://github.com/carvel-dev/ytt/issues/537
+RUN apk add --update --no-cache --no-progress bash perl-utils \
+    && wget -O- https://carvel.dev/install.sh | bash \
+    && apk del bash perl-utils
+
+COPY action.sh /action.sh
+ENTRYPOINT ["/action.sh"]

set-vendir-channels-path-to-imgpkg-bundle/action.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env sh
+
+CHANNEL_NAME=$1
+IMGPKG_BUNDLE_IMAGE=$2
+BASE_PATH=$3
+
+mkdir -p "$BASE_PATH"
+cd "$BASE_PATH"
+VENDIR_FILE="vendir.yml"
+
+if [ ! -f "$VENDIR_FILE" ]; then
+yq - > "$VENDIR_FILE" << 'EOF'
+---
+apiVersion: vendir.k14s.io/v1alpha1
+kind: Config
+EOF
+fi
+
+yq -i "
+  .directories = .directories // []
+    | .directories = .directories + [{\"path\": \"channels\", \"contents\": []}]
+    | .directories |= unique_by(.path)
+    | with(
+      .directories[] | select(.path == \"channels\");
+      .contents = [{\"path\": \"$CHANNEL_NAME\", \"imgpkgBundle\": {\"image\": \"$IMGPKG_BUNDLE_IMAGE\"}}] + .contents
+        | .contents |= unique_by(.path)
+    )
+    | .directories |= sort_by(.path == \"channels\" | not)
+" "$VENDIR_FILE"

set-vendir-channels-path-to-imgpkg-bundle/action.yml

@@ -0,0 +1,22 @@
+name: Set Vendir Channels Path to Imgpkg Bundle
+description: Sets a vendir directory to a imgpkg bundle image.
+
+inputs:
+  channel_name:
+    description: "The path under the channels directory to update."
+    required: true
+  imgpkg_bundle_image:
+    description: "The imgpkg bundle image."
+    required: true
+  path:
+    description: "The base directory path where vendir.yml is located."
+    required: false
+    default: "."
+
+runs:
+  using: docker
+  image: Dockerfile
+  args:
+    - ${{ inputs.channel_name }}
+    - ${{ inputs.imgpkg_bundle_image }}
+    - ${{ inputs.path }}