Add flag to force-overwrite existing chart files.

This mitigates issue #5.

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [0.4.1] - 2018-10-30
+
+### Added
+
+- Possiblity to force-upload charts even if the version of the chart already
+  exists. (Mitigates issue [5](https://github.com/cathive/concourse-chartmuseum-resource/issues/5))
+
 ## [0.4.0] - 2018-09-13
 
 ### Added

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:10.9.0 as builder
+FROM node:10.12.0 as builder
 RUN apt-get -y update && apt-get -y install curl gzip tar unzip
 ARG HELM_DOWNLOAD_URL="https://storage.googleapis.com/kubernetes-helm/helm-v2.10.0-linux-amd64.tar.gz"
 ADD ${HELM_DOWNLOAD_URL} /tmp/helm.tar.gz
@@ -13,7 +13,7 @@ COPY . /src
 WORKDIR /src
 RUN npm -s install && npm -s run build && npm -s test && npm -s pack && mv cathive-concourse-chartmuseum-resource-*.tgz /data/cathive-concourse-chartmuseum-resource.tgz
 
-FROM node:10.9.0-alpine
+FROM node:10.12.0-alpine
 RUN apk add --no-cache gnupg ca-certificates
 COPY --from=builder "/data/helm" "/usr/local/bin/helm"
 COPY --from=builder "/data/cathive-concourse-chartmuseum-resource.tgz" "/tmp/cathive-concourse-chartmuseum-resource.tgz"
@@ -26,8 +26,8 @@ RUN npm -s install -g /tmp/cathive-concourse-chartmuseum-resource.tgz \
 ENV PATH="/usr/local/bin:/usr/bin:/bin"
 RUN helm init --client-only
 LABEL maintainer="Benjamin P. Jung <headcr4sh@gmail.com>" \
-      version="0.4.1-pre" \
-      org.concourse-ci.target-version="4.0.0" \
+      version="0.4.1" \
+      org.concourse-ci.target-version="4.2.1" \
       org.concourse-ci.resource-id="chartmuseum" \
       org.concourse-ci.resource-name="ChartMuseum package management" \
       org.concourse-ci.resource-homepage="https://github.com/cathive/concourse-chartmuseum-resource"

README.md

@@ -68,6 +68,11 @@ unless overwritten by the parameter `target_basename`.
   uploaded. If a folder has been specified instead of a tgz file, this folder will be
   packaged prior to uploading it's contents to the ChartMuseum instance.
 
+* `force`: Optional parameter that can be used to force the upload of the chart,
+  even if the version to be uploaded does already exist on the server. Enforcement
+  only works, if the ChartMuseum server has *not* been started with the
+  `--disable-force-overwrite` flag, though.
+
 * `version`: Optional parameter that can be used to override the "version" field in the
   chart's `Chart.yaml` file. If the override version is stored in a file, you can use the
   parameter `version_file` instead.

index.ts

@@ -81,6 +81,7 @@ export interface OutRequest extends Request {
         key_passphrase?: string
         version?: string
         version_file?: string
+        force?: boolean
     }
 }
 

out.ts

@@ -222,7 +222,10 @@ export default async function out(): Promise<{ data: Object, cleanupCallback: ((
     const readStream = fs.createReadStream(chartFile);
     let postResult: Response;
     try {
-        const postUrl = `${request.source.server_url}api/charts`;
+        let postUrl = `${request.source.server_url}api/charts`;
+        if (request.params.force) {
+            postUrl += "?force=true"
+        }
         postResult = await fetch(postUrl, {
             method: "POST",
             headers: headers,