From faff17b2a94697fe5c4568cdee5458cf780b87fa Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Fri, 29 Nov 2013 18:08:22 +0900
Subject: [PATCH] Hostname completion for ssh and telnet commands

---
 README.md           | 16 +++++++++++++++-
 fzf-completion.bash | 21 +++++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index c81b9e4..dc7feda 100644
--- a/README.md
+++ b/README.md
@@ -270,6 +270,8 @@ over time*
 
 ### bash
 
+#### Files and directories
+
 Fuzzy completion for files and directories can be triggered if the word before
 the cursor ends with the trigger sequence which is by default `**`.
 
@@ -297,7 +299,9 @@ cd **<TAB>
 cd ~/github/fzf**<TAB>
 ```
 
-Fuzzy completion for PIDs are provided for kill command. In this case
+#### Process IDs
+
+Fuzzy completion for PIDs is provided for kill command. In this case
 there is no trigger sequence, just press tab key after kill command.
 
 ```sh
@@ -305,6 +309,16 @@ there is no trigger sequence, just press tab key after kill command.
 kill -9 <TAB>
 ```
 
+#### Host names
+
+For ssh and telnet command, fuzzy completion for host names is provided. The
+names are extracted from /etc/hosts file.
+
+```sh
+ssh <TAB>
+telnet <TAB>
+```
+
 #### Settings
 
 ```sh
diff --git a/fzf-completion.bash b/fzf-completion.bash
index 383122d..2ffe733 100644
--- a/fzf-completion.bash
+++ b/fzf-completion.bash
@@ -95,6 +95,22 @@ _fzf_kill_completion() {
   fi
 }
 
+_fzf_host_completion() {
+  if [ "${COMP_WORDS[COMP_CWORD-1]}" = '-l' ]; then
+    return 1
+  fi
+
+  local selected
+  tput sc
+  selected=$(grep -v '^\s*\(#\|$\)' /etc/hosts | awk '{print $2}' | sort -u | fzf $FZF_COMPLETION_OPTS)
+  tput rc
+
+  if [ -n "$selected" ]; then
+    COMPREPLY=( "$selected" )
+    return 0
+  fi
+}
+
 complete -F _fzf_opts_completion fzf
 
 # Directory
@@ -123,3 +139,8 @@ done
 # Kill completion
 complete -F _fzf_kill_completion -o nospace -o default -o bashdefault kill
 
+# Host completion
+for cmd in "ssh telnet"; do
+  complete -F _fzf_host_completion -o default -o bashdefault $cmd
+done
+