Support New KRM-Style Exec Plugin (#163)

* style: go.19 fmt

* feat: prep for handling both krm and legacy exec plugin

* refactor: move ksops manifest processing into func

* refactor: return err from decryptFile

* feat: support KRM style exec plugin

* fix: decrypt file from parsed path

* refactor: move helper functions below main

* fix: add krm deps

* chore: go mod tidy -go=1.16 && go mod tidy -go=1.17

* fix: go lint

* fix: go vet

* fix: use go install to install kustomize to support Go 1.18/19

* feat: support go >1.18, required by krm

* fix: typo in README

* feat: add more better help message

* feat: add simple KRM test

* fix: do not add trailing separator to generated manifests

* fix: duplicate append

* test: add krm test coverage

* feat: install ksops to go path for testing

* refactor: move existing tests under legacy folder

* chore: refer to old plugin as legacy

* feat: bump docker Go version

* refactor: migrate existing archive install script to separate file

* feat: install ksops to /usr/local/bin

* chore: better error message

* feat: rewrite README for krm exec plugin, preserve old README in a separate file

* fix: typo in legacy title

* fix: clean ksops install on make clean

.github/workflows/go.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        go: [1.17]
+        go: [1.18, 1.19]
     name: ${{ matrix.os }} @ Go ${{ matrix.go }}
     runs-on: ${{ matrix.os }}
     steps:

Dockerfile

@@ -1,4 +1,4 @@
-ARG GO_VERSION="1.17"
+ARG GO_VERSION="1.18"
 
 #--------------------------------------------#
 #--------Build KSOPS and Kustomize-----------#

Makefile

@@ -16,9 +16,10 @@ build:
 
 .PHONY: clean
 clean:
-	rm $(PLUGIN_NAME) || true
+	rm -f $(PLUGIN_NAME)
 	rm -rf $(XDG_CONFIG_HOME)/kustomize/plugin/viaduct.ai/v1/ || true
 	rm -rf $(HOME)/sigs.k8s.io/kustomize/plugin/viaduct.ai/v1/ || true
+	rm -f $(shell command -v $(PLUGIN_NAME))
 
 .PHONY: kustomize
 kustomize: