feat: show live output from the Helm binary (#286)

* feat: show live output from the Helm binary

Signed-off-by: Rodrigo Fior Kuntzer <rodrigo@miro.com>

* fixup! Merge branch 'main' into enable-live-output

Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>

test/e2e/template/helmfile/testdata/snapshot/chart_need_enable_live_output/config.yaml

@@ -0,0 +1,7 @@
+localChartRepoServer:
+  enabled: true
+  port: 18080
+chartifyTempDir: temp1
+helmfileArgs:
+- --enable-live-output
+- template

test/e2e/template/helmfile/testdata/snapshot/chart_need_enable_live_output/input.yaml

@@ -0,0 +1,31 @@
+repositories:
+- name: myrepo
+  url: http://localhost:18080/
+
+releases:
+- name: foo
+  chart: ../../charts/raw
+  values:
+  - templates:
+    - |
+      apiVersion: v1
+      kind: ConfigMap
+      metadata:
+        name: {{`{{ .Release.Name }}`}}-1
+        namespace: {{`{{ .Release.Namespace }}`}}
+      data:
+        foo: FOO
+    dep:
+      templates:
+      - |
+        apiVersion: v1
+        kind: ConfigMap
+        metadata:
+          name: {{`{{ .Release.Name }}`}}-2
+          namespace: {{`{{ .Release.Namespace }}`}}
+        data:
+          bar: BAR
+  dependencies:
+  - alias: dep
+    chart: myrepo/raw
+    version: 0.1.0

test/e2e/template/helmfile/testdata/snapshot/chart_need_enable_live_output/output.yaml

@@ -0,0 +1,27 @@
+Live output is enabled
+Adding repo myrepo http://localhost:18080/
+"myrepo" has been added to your repositories
+
+Building dependency release=foo, chart=$WD/temp1/foo
+Templating release=foo, chart=$WD/temp1/foo
+---
+# Source: raw/templates/charts/dep/templates/resources.yaml
+# Source: raw/charts/dep/templates/resources.yaml
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: foo-2
+  namespace: default
+data:
+  bar: BAR
+---
+# Source: raw/templates/resources.yaml
+# Source: raw/templates/resources.yaml
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: foo-1
+  namespace: default
+data:
+  foo: FOO
+

test/integration/run.sh

@@ -17,7 +17,7 @@ if [[ ! -d "${dir}" ]]; then dir="${PWD}"; fi
 # GLOBALS -----------------------------------------------------------------------------------------------------------
 
 test_ns="helmfile-tests-$(date +"%Y%m%d-%H%M%S")"
-helmfile="./helmfile --namespace=${test_ns}"
+helmfile="./helmfile ${EXTRA_HELMFILE_FLAGS} --namespace=${test_ns}"
 helm="helm --kube-context=minikube"
 kubectl="kubectl --context=minikube --namespace=${test_ns}"
 helm_dir="${PWD}/${dir}/.helm"