feat: remove filename restrictions

README.md

@@ -11,6 +11,7 @@ This fits multiple use cases:
 - Need to keep charts private
 - Doesn't want to package charts before installing
 - Charts in a sub-path, or with another ref than `master`
+- Pull values files directly from (private) Git repository
 
 ## Install
 
@@ -57,6 +58,10 @@ Fetching also works:
     $ helm fetch cert-manager/cert-manager --version "0.6.6"
     $ helm fetch git+https://github.com/jetstack/cert-manager@deploy/charts/cert-manager-v0.6.2.tgz?ref=v0.6.2
 
+Pulling value files (Helm 3 only):
+
+    $ helm install . -f git+https://github.com/aslafy-z/helm-git@tests/fixtures/example-chart/values.yaml
+
 ### Environment
 
 **name**|**description**|**default**

helm-git-plugin.sh

@@ -204,13 +204,6 @@ main() {
   readonly helm_repo_uri="git+$git_repo@$git_path?ref=$git_ref&sparse=$git_sparse"
   debug "helm_repo_uri: $helm_repo_uri"
 
-  case "$helm_file" in
-  index.yaml) ;;
-  *.tgz) ;;
-  *) error "Target file name has to be either 'index.yaml' or a tgz release" ;;
-  esac
-
-
   # Setup cleanup trap
   cleanup() {
     rm -rf "$git_root_path" \
@@ -223,6 +216,16 @@ main() {
   readonly git_sub_path=$(path_join "$git_root_path" "$git_path")
   git_checkout "$git_sparse" "$git_root_path" "$git_repo" "$git_ref" "$git_path" ||
     error "Error while git_sparse_checkout"
+
+  case "$helm_file" in
+  index.yaml) ;;
+  *.tgz) ;;
+  *)
+    # value files
+    cat "$git_path/$helm_file"
+    return
+    ;;
+  esac
 
   readonly helm_target_path="$(mktemp -d "$TMPDIR/helm-git.XXXXXX")"
   readonly helm_target_file="$(path_join "$helm_target_path" "$helm_file")"

tests/03-cli.bats

@@ -20,3 +20,12 @@ load 'test-helper'
     run stat "$HELM_GIT_OUTPUT/cert-manager-v0.5.2.tgz"
     [ $status = 0 ]
 }
+
+@test "fetch tests/fixtures/example-chart/values.yaml" {
+    run helm_init "$HELM_HOME"
+    url="git+https://github.com/aslafy-z/helm-git@tests/fixtures/example-chart/values.yaml?ref=master"
+    $HELM_GIT_DIRNAME/helm-git "" "" "" "$url" 2>/dev/null > "$HELM_GIT_OUTPUT/values.yaml"
+    [ $? = 0 ]
+    run stat "$HELM_GIT_OUTPUT/values.yaml"
+    [ $status = 0 ]
+}