From 3c041d2ad7cfe17f912456d208738a25d1bc51fe Mon Sep 17 00:00:00 2001
From: CREITZ25 <95033856+CREITZ25@users.noreply.github.com>
Date: Mon, 7 Mar 2022 11:07:11 +0100
Subject: [PATCH] #636 Helm Integration

#636 Helm Integration
---
 documentation/cli.asciidoc                    |  1 +
 documentation/devonfw-ide-usage.asciidoc      |  2 +
 documentation/helm.asciidoc                   | 23 ++++++
 documentation/scripts.asciidoc                |  1 +
 .../src/main/resources/scripts/command/helm   | 77 +++++++++++++++++++
 5 files changed, 104 insertions(+)
 create mode 100644 documentation/helm.asciidoc
 create mode 100644 scripts/src/main/resources/scripts/command/helm

diff --git a/documentation/cli.asciidoc b/documentation/cli.asciidoc
index 8d010533b..879998d81 100644
--- a/documentation/cli.asciidoc
+++ b/documentation/cli.asciidoc
@@ -55,6 +55,7 @@ The following commandlets are currently available:
 * link:docker.asciidoc[docker]
 * link:eclipse.asciidoc[eclipse]
 * link:gradle.asciidoc[gradle]
+* link:helm.asciidoc[helm]
 * link:help.asciidoc[help]
 * link:ide.asciidoc[ide]
 * link:intellij.asciidoc[intellij]
diff --git a/documentation/devonfw-ide-usage.asciidoc b/documentation/devonfw-ide-usage.asciidoc
index 10ef6486a..d575ad573 100644
--- a/documentation/devonfw-ide-usage.asciidoc
+++ b/documentation/devonfw-ide-usage.asciidoc
@@ -22,6 +22,8 @@ include::eclipse.asciidoc[leveloffset=3]
 
 include::gradle.asciidoc[leveloffset=3]
 
+include::helm.asciidoc[leveloffset=3]
+
 include::help.asciidoc[leveloffset=3]
 
 include::ide.asciidoc[leveloffset=3]
diff --git a/documentation/helm.asciidoc b/documentation/helm.asciidoc
new file mode 100644
index 000000000..f2f5d4aa0
--- /dev/null
+++ b/documentation/helm.asciidoc
@@ -0,0 +1,23 @@
+:toc:
+toc::[]
+
+= Helm
+
+The helm commandlet allows to install and use https://www.helm.sh/[Helm].
+
+*ATTENTION:*
+Currently this feature is new and therefore experimental.
+It may change in incompatible ways in the next releases until we reach a stable state.
+We hope that all is working fine for you.
+However, do not expect everything to work out of the box.
+In case you are facing issues (e.g. network problems with Cisco AnyConnect, etc.) please give us feedback so we can improve.
+
+The arguments (`devon helm «args»`) are explained by the following table:
+
+.Usage of `devon helm`
+[options="header"]
+|=======================
+|*Argument(s)*    |*Meaning*
+|`setup`          |install helm on your machine.
+|`«args»`         |call helm with the specified arguments. Call `helm --help` for details or use helm directly as preferred."
+|=======================
\ No newline at end of file
diff --git a/documentation/scripts.asciidoc b/documentation/scripts.asciidoc
index 6c593fe8f..25707d75a 100644
--- a/documentation/scripts.asciidoc
+++ b/documentation/scripts.asciidoc
@@ -13,6 +13,7 @@ This directory is the heart of the `devonfw-ide` and contains the required link:
 │  ├── link:docker.asciidoc[docker]
 │  ├── link:eclipse.asciidoc[eclipse]
 │  ├── link:gradle.asciidoc[gradle]
+|  ├── link:helm.asciidoc[helm]
 │  ├── link:help.asciidoc[help]
 │  ├── link:ide.asciidoc[ide]
 │  ├── link:intellij.asciidoc[intellij]
diff --git a/scripts/src/main/resources/scripts/command/helm b/scripts/src/main/resources/scripts/command/helm
new file mode 100644
index 000000000..da5c0986b
--- /dev/null
+++ b/scripts/src/main/resources/scripts/command/helm
@@ -0,0 +1,77 @@
+#!/usr/bin/env bash
+
+# autocompletion list
+if [ "${1}" = "shortlist" ]
+then
+  if [ -z "${2}" ]
+  then
+    echo "setup help"
+  fi
+  exit
+fi
+
+if [ -n "${DEVON_IDE_TRACE}" ]; then set -vx; fi
+# shellcheck source=scripts/functions
+source "$(dirname "${0}")"/../functions
+
+# Check if helm is installed.
+function doIsHelmInstalled() {
+  if command -v helm &> /dev/null
+  then
+    return
+  else
+    return 255
+  fi
+}
+
+# Call helm with specified arguments.
+function doRun() {
+  doSetup silent
+  helm "${@}"
+}
+
+function doSetup() {
+
+  if doIsHelmInstalled
+  then
+    if [ "${1}" != "silent" ] && ! doIsQuiet
+    then
+      helm version
+    fi
+ else
+    # Check if HELM_HOME is already set
+    if [ -z "${HELM_HOME}" ]
+    then
+      HELM_HOME="${DEVON_IDE_HOME}/software/helm"
+    fi
+
+    # Get leatest release
+    if [ -z "${HELM_VERSION}" ]
+    then
+      doEcho "Getting latest release..."
+      HELM_VERSION=$(curl -LsH "Accept: application/vnd.github.v3+json" https://api.github.com/repos/helm/helm/releases/latest | awk -F':' '/tag_name/ {print $2}' | awk -F'"' '{print $2}')
+    fi
+
+    doInstall "-" "${HELM_HOME}" "helm" "${HELM_VERSION}"
+  fi
+}
+
+
+# CLI
+case ${1} in 
+"help" | "-h")
+  echo "Install helm."
+  echo
+  echo "Arguments:"
+  echo " setup                    install helm on your machine."
+  echo " <<args>>                 call helm with the specified arguments. Call helm --help for details or use helm directly as preferred."
+  echo
+;;
+"setup" | "s" | "")
+  doEcho "Installating helm..."
+  doSetup
+;;
+*)
+  doRun "${@}"
+;;
+esac