extend the oci client with list repositories and list tags functions

docs/reference/components-cli_component-archive.md

@@ -3,21 +3,21 @@
 
 
 ```
-components-cli component-archive component-archive-path [ctf-path] [flags]
+components-cli component-archive [component-archive-path] [ctf-path] [flags]
 ```
 
 ### Options
 
 ```
   -a, --archive string              path to the component archive directory
       --component-name string       name of the component
-  -c, --component-ref stringArray   path to resources definition
+  -c, --component-ref stringArray   path to component references definition
       --component-version string    version of the component
       --format CAOutputFormat       archive format of the component archive. Can be "tar" or "tgz" (default tar)
   -h, --help                        help for component-archive
       --repo-ctx string             [OPTIONAL] repository context url for component to upload. The repository url will be automatically added to the repository contexts.
   -r, --resources stringArray       path to resources definition
-  -s, --sources stringArray         path to resources definition
+  -s, --sources stringArray         path to sources definition
       --temp-dir string             temporary directory where the component archive is build. Defaults to a os-specific temp dir
 ```
 

docs/reference/components-cli_image-vector_add.md

@@ -43,7 +43,7 @@ resources:
 2. The image is defined by another component so the image is added as label ("imagevector.gardener.cloud/images") to the "componentReference".
 
 Images that are defined by other components can be specified 
-1. [DEPRECATED] when the image's repository matches the given "--component-prefixes"
+1. when the image's repository matches the given "--component-prefixes"
 2. the image is labeled with "imagevector.gardener.cloud/component-reference"
 
 If the component reference is not yet defined it will be automatically added.
@@ -86,10 +86,10 @@ componentReferences:
 </pre>
 
 3. The image is a generic dependency where the actual images are defined by the overwrite.
-A generic dependency image is not part of a component descriptors resource but will be added as label ("imagevector.gardener.cloud/images") to the component descriptor. 
+A generic dependency image is not part of a component descriptor's resource but will be added as label ("imagevector.gardener.cloud/images") to the component descriptor. 
 
 Generic dependencies can be defined by
-1. [DEPRECATED] defined as "--generic-dependency=<image name>"
+1. defined as "--generic-dependency=<image name>"
 2. the label "imagevector.gardener.cloud/generic"
 
 <pre>
@@ -113,7 +113,6 @@ component:
 	  - name: hyperkube
 	    repository: k8s.gcr.io/hyperkube
 	    sourceRepository: github.com/kubernetes/kubernetes
-	    tag: v0.10.0
 	    targetVersion: '< 1.19'
 </pre>
 

docs/reference/components-cli_oci.md

@@ -23,4 +23,6 @@
 
 * [components-cli](components-cli.md)	 - components cli
 * [components-cli oci pull](components-cli_oci_pull.md)	 - Pulls a oci artifact from a registry
+* [components-cli oci repositories](components-cli_oci_repositories.md)	 - Lists all repositories of the registry
+* [components-cli oci tags](components-cli_oci_tags.md)	 - Lists all tags of artifact reference
 

docs/reference/components-cli_oci_repositories.md

@@ -0,0 +1,39 @@
+## components-cli oci repositories
+
+Lists all repositories of the registry
+
+### Synopsis
+
+
+repositories lists all known repositories of the registry.
+
+
+
+```
+components-cli oci repositories [registry host] [flags]
+```
+
+### Options
+
+```
+      --allow-plain-http         allows the fallback to http if the oci registry does not support https
+      --cc-config string         path to the local concourse config file
+  -h, --help                     help for repositories
+      --registry-config string   path to the dockerconfig.json with the oci registry authentication information
+```
+
+### Options inherited from parent commands
+
+```
+      --cli                  logger runs as cli logger. enables cli logging
+      --dev                  enable development logging which result in console encoding, enabled stacktrace and enabled caller
+      --disable-caller       disable the caller of logs (default true)
+      --disable-stacktrace   disable the stacktrace of error logs (default true)
+      --disable-timestamp    disable timestamp output (default true)
+  -v, --verbosity int        number for the log level verbosity (default 1)
+```
+
+### SEE ALSO
+
+* [components-cli oci](components-cli_oci.md)	 - 
+

docs/reference/components-cli_oci_tags.md

@@ -0,0 +1,39 @@
+## components-cli oci tags
+
+Lists all tags of artifact reference
+
+### Synopsis
+
+
+tags lists all tags for a specific artifact reference that is known by the registry.
+
+
+
+```
+components-cli oci tags [artifact reference] [flags]
+```
+
+### Options
+
+```
+      --allow-plain-http         allows the fallback to http if the oci registry does not support https
+      --cc-config string         path to the local concourse config file
+  -h, --help                     help for tags
+      --registry-config string   path to the dockerconfig.json with the oci registry authentication information
+```
+
+### Options inherited from parent commands
+
+```
+      --cli                  logger runs as cli logger. enables cli logging
+      --dev                  enable development logging which result in console encoding, enabled stacktrace and enabled caller
+      --disable-caller       disable the caller of logs (default true)
+      --disable-stacktrace   disable the stacktrace of error logs (default true)
+      --disable-timestamp    disable timestamp output (default true)
+  -v, --verbosity int        number for the log level verbosity (default 1)
+```
+
+### SEE ALSO
+
+* [components-cli oci](components-cli_oci.md)	 - 
+

go.mod

@@ -20,6 +20,7 @@ require (
 	github.com/mandelsoft/vfs v0.0.0-20201002134249-3c471f64a4d1
 	github.com/onsi/ginkgo v1.14.0
 	github.com/onsi/gomega v1.10.1
+	github.com/opencontainers/distribution-spec v1.0.0-rc1
 	github.com/opencontainers/go-digest v1.0.0
 	github.com/opencontainers/image-spec v1.0.1
 	github.com/prometheus/client_golang v0.9.3

go.sum

@@ -244,6 +244,8 @@ github.com/onsi/gomega v1.7.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1Cpa
 github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY=
 github.com/onsi/gomega v1.10.1 h1:o0+MgICZLuZ7xjH7Vx6zS/zcu93/BEp1VwkIW1mEXCE=
 github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo=
+github.com/opencontainers/distribution-spec v1.0.0-rc1 h1:nuQ2aIFPy01fNMoeoY7TCedORpU9Wmm/nkMiGErgrmY=
+github.com/opencontainers/distribution-spec v1.0.0-rc1/go.mod h1:copR2flp+jTEvQIFMb6MIx45OkrxzqyjszPDT3hx/5Q=
 github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
 github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
 github.com/opencontainers/image-spec v1.0.1 h1:JMemWkRwHx4Zj+fVxWoMCFm/8sYGGrUVojFA6h/TRcI=