From 17b32b1f64060f21df9e6d6645051b75785c3e2d Mon Sep 17 00:00:00 2001
From: Ahmet Alp Balkan <ahmetb@google.com>
Date: Tue, 4 Apr 2017 12:05:28 -0700
Subject: [PATCH] Add basic bash completion

Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>
---
 README.md               |  8 ++++----
 completion/README.md    | 19 +++++++++++++++++++
 completion/kubectx.bash |  8 ++++++++
 3 files changed, 31 insertions(+), 4 deletions(-)
 create mode 100644 completion/README.md
 create mode 100644 completion/kubectx.bash

diff --git a/README.md b/README.md
index c69913e..2bd2cab 100644
--- a/README.md
+++ b/README.md
@@ -31,11 +31,11 @@ Context "dublin" set.
 Aliased "gke_ahmetb_europe-west1-b_dublin" as "dublin".
 ```
 
-## Help wanted
+[**Set up `bash` completion &rarr;**](completion/README.md)
 
-- [ ] bash completion
-- [ ] zsh completion
-- [ ] homebrew formula/tap
+### Help wanted
+
+[ ] homebrew formula/tap
 
 -----
 
diff --git a/completion/README.md b/completion/README.md
new file mode 100644
index 0000000..c93dd9a
--- /dev/null
+++ b/completion/README.md
@@ -0,0 +1,19 @@
+kubectx provides shell completion scripts to complete context names, making it
+even faster to switch between contexts easily.
+
+## Bash setup
+
+Copy the `kubectx.bash` file to your HOME directory:
+
+    cp kubectx.bash ~/.kubectx.bash
+
+And source it in your `~/.bashrc` file by adding the line:
+
+    [ -f ~/.kubectx.bash ] && source ~/.kubectx.bash
+
+Start a new shell, type `kubectx`, then hit <kbd>Tab</kbd> to see the existing
+contexts.
+
+You can Add `TAB: menu-complete` to your `~/.inputrc` to cycle through the
+options with <kbd>Tab</kbd>.
+
diff --git a/completion/kubectx.bash b/completion/kubectx.bash
new file mode 100644
index 0000000..c51d9c3
--- /dev/null
+++ b/completion/kubectx.bash
@@ -0,0 +1,8 @@
+_kube_contexts()
+{
+  local curr_arg;
+  curr_arg=${COMP_WORDS[COMP_CWORD]}
+  COMPREPLY=( $(compgen -W "- $(kubectl config get-contexts | awk '{print $2}' | tail -n +2)" -- $curr_arg ) );
+}
+
+complete -F _kube_contexts kubectx
\ No newline at end of file