refactor: refactor downloader

Refactor as a subcommand in order to support :
- remote files
- all secrets drivers (sops, vault, ...)

CHANGELOG.md

@@ -14,6 +14,7 @@ Check [README.md](README.md#installation-on-helm-2)
 ### Added
 - Implement alternate syntax (https://github.com/jkroepke/helm-secrets/pull/52)
 - Remote values support (supporting http:// and helm downloader plugins) (https://github.com/jkroepke/helm-secrets/pull/54)
+- Let downloader plugin supports remote files and all secrets drivers (https://github.com/jkroepke/helm-secrets/pull/55)
 
 ## [3.3.5] - 2020-10-16
 

USAGE.md

@@ -298,7 +298,15 @@ kind: Deployment
 Helm supports [downloader plugin](https://helm.sh/docs/topics/plugins/#downloader-plugins) for value files, too.
 
 ```
-helm upgrade . -f sops://<path to file>
+helm upgrade . -f secrets://<uri to file>
+helm upgrade . -f secret://<uri to file>
+helm upgrade . -f sops://<uri to file>
+```
+
+Example:
+```
+helm upgrade . -f secrets://localfile.yaml
+helm upgrade . -f secrets://git+https://github.com/jkroepke/helm-secrets@tests/assets/values/sops/secrets.yaml?ref=master
 ```
 
 # Important Tips

plugin.yaml

@@ -14,7 +14,7 @@ platformCommand:
     command: "cmd /c $HELM_PLUGIN_DIR/scripts/wrapper/sh.cmd $HELM_PLUGIN_DIR/scripts/run.sh"
 
 downloaders:
-  - command: "scripts/downloader.sh"
+  - command: "scripts/run.sh downloader"
     protocols:
       - "sops"
       - "secret"

scripts/commands/downloader.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env sh
+
+set -eu
+
+# shellcheck source=scripts/commands/view.sh
+. "${SCRIPT_DIR}/commands/view.sh"
+
+downloader() {
+    # https://helm.sh/docs/topics/plugins/#downloader-plugins
+    # It's always the 4th parameter
+    file=$(printf '%s' "${4}" | sed -e 's!(sops|secrets?)://!!')
+
+    view_helper "${file}"
+}

scripts/run.sh

@@ -155,6 +155,13 @@ while true; do
         clean "$2"
         break
         ;;
+    downloader)
+        # shellcheck source=scripts/commands/downloader.sh
+        . "${SCRIPT_DIR}/commands/downloader.sh"
+
+        downloader "$2" "$3" "$4" "$5"
+        break
+        ;;
     --help | -h | help)
         usage
         break