Print plugin-friendly usage string

Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>
ahmetb · Nov 10, 2019 · e2f7dc0 · e2f7dc0
1 parent 9645e5c
commit e2f7dc0
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Showing 2 changed files with 25 additions and 15 deletions.
diff --git a/kubectx b/kubectx
@@ -22,22 +22,27 @@ set -eou pipefail
 IFS=$'\n\t'
 
 SELF_CMD="$0"
+SELF="kubectx"
+if [[ "$(basename "$0")" == kubectl-* ]]; then # invoked as plugin
+  SELF="kubectl ctx"
+fi
+
 KUBECTX="${XDG_CACHE_HOME:-$HOME/.kube}/kubectx"
 
 usage() {
-  cat <<"EOF"
+  cat <<EOF
 USAGE:
-  kubectx                       : list the contexts
-  kubectx <NAME>                : switch to context <NAME>
-  kubectx -                     : switch to the previous context
-  kubectx -c, --current         : show the current context name
-  kubectx <NEW_NAME>=<NAME>     : rename context <NAME> to <NEW_NAME>
-  kubectx <NEW_NAME>=.          : rename current-context to <NEW_NAME>
-  kubectx -d <NAME> [<NAME...>] : delete context <NAME> ('.' for current-context)
+  $SELF                       : list the contexts
+  $SELF <NAME>                : switch to context <NAME>
+  $SELF -                     : switch to the previous context
+  $SELF -c, --current         : show the current context name
+  $SELF <NEW_NAME>=<NAME>     : rename context <NAME> to <NEW_NAME>
+  $SELF <NEW_NAME>=.          : rename current-context to <NEW_NAME>
+  $SELF -d <NAME> [<NAME...>] : delete context <NAME> ('.' for current-context)
                                   (this command won't delete the user/cluster entry
                                   that is used by the context)
 
-  kubectx -h,--help             : show this message
+  $SELF -h,--help             : show this message
 EOF
 }
 

diff --git a/kubens b/kubens
@@ -22,16 +22,21 @@ set -eou pipefail
 IFS=$'\n\t'
 
 SELF_CMD="$0"
+SELF="kubens"
+if [[ "$(basename "$0")" == kubectl-* ]]; then # invoked as plugin
+  SELF="kubectl ns"
+fi
+
 KUBENS_DIR="${XDG_CACHE_HOME:-$HOME/.kube}/kubens"
 
 usage() {
-  cat <<"EOF"
+  cat <<EOF
 USAGE:
-  kubens                    : list the namespaces in the current context
-  kubens <NAME>             : change the active namespace of current context
-  kubens -                  : switch to the previous namespace in this context
-  kubens -c, --current      : show the current namespace
-  kubens -h,--help          : show this message
+  $SELF                    : list the namespaces in the current context
+  $SELF <NAME>             : change the active namespace of current context
+  $SELF -                  : switch to the previous namespace in this context
+  $SELF -c, --current      : show the current namespace
+  $SELF -h,--help          : show this message
 EOF
 }