From a254d2f43648b5d932da7de4bfdb0f1bf476f0ef Mon Sep 17 00:00:00 2001
From: Gustav Eek <gustav@fripost.org>
Date: Sat, 18 Apr 2015 23:45:05 +0200
Subject: [PATCH] [repo-encrypt] Bash completion added

For the repo-encrypt script, some bash completion is added. The
Makefile is adjusted for to install these scripts. Also the README is
updated with instructions.
---
 Makefile                       | 12 ++++++++++-
 README                         | 38 ++++++++++++++++++++++++----------
 bash_completion.d/repo-encrypt | 32 ++++++++++++++++++++++++++++
 3 files changed, 70 insertions(+), 12 deletions(-)
 create mode 100644 bash_completion.d/repo-encrypt

diff --git a/Makefile b/Makefile
index f789392..db29e8d 100644
--- a/Makefile
+++ b/Makefile
@@ -8,15 +8,25 @@ scripts = \
 msmtp-notify \
 repo-encrypt \
 
+bash-completion = \
+repo-encrypt \
+
 dir := $(abspath $(wildcard $(INSTALL)))
+dir-completion := $(dir)/bash_completion.d
 
 default: help
 
-install: $(foreach s, $(scripts), $(dir)/$(s))
+install: $(dir) $(dir-completion) \
+$(foreach f, $(scripts), $(dir)/$(f)) \
+$(foreach f, $(bash-completion), $(dir-completion)/$(f)) \
 
 $(dir)/%: %
 	cp -f $< $@
 	chmod +x $@
+$(dir-completion)/%: bash_completion.d/%
+	cp -f $< $@
+$(dir) $(dir-completion):
+	mkdir -p $@
 
 help:
 	@echo "Run make install or see README."
diff --git a/README b/README
index 70cac42..a7b3912 100644
--- a/README
+++ b/README
@@ -3,9 +3,11 @@ This repository holds cusomisation scripts of Gustav.
 Please send patches, bug reports and comments to Gustav Eek
 <gustav@fripost.org>
 
-# Licence
 
-Copyright 2014 Gustav Eek.
+License
+=======
+
+Copyright (c) 2014--2015 Gustav Eek <gustav@fripost.org>.
 
 The script set in this repository is free software: you can
 redistribute it and/or modify it under the terms of the GNU General
@@ -21,22 +23,36 @@ You should have received a copy of the GNU General Public License
 along with this script set. If not, see
 <http://www.gnu.org/licenses/>.
 
-# Configuration
-
-Configural parameters are installation directory. Open Makefile
 
-# Compilation
+Configuration
+=============
 
-No compilation is needed.
+Configurable parameters are installation directory. Edit `Makefile`
+directly.
 
-# Installation
+Installation
+============
 
 For installation type
 
-    $ make install
+	$ make install
+
+For Bash autocompletion on some of the commands, put the following
+lines in your `~/.bash_completion` or `~/.bashrc`
+
+	DIR="$HOME/bin/bash_completion.d"
+	if [[ -d "$DIR" ]]; then
+		for f in $(ls "$DIR"); do
+			if [[ -f "$DIR/$f" ]]; then
+				source "$DIR/$f"
+			fi
+			done
+		fi
+	unset DIR
 
-# Help
+Help
+====
 
 Some scripts include help command, in that case type
 
-    $ <script> --help
+	$ <script> --help
diff --git a/bash_completion.d/repo-encrypt b/bash_completion.d/repo-encrypt
new file mode 100644
index 0000000..7d3c81e
--- /dev/null
+++ b/bash_completion.d/repo-encrypt
@@ -0,0 +1,32 @@
+#!/bin/bash
+#
+# This file provides programmable completion for repo-encrypt under
+# the bash shell
+
+function _repo-encrypt {
+
+    local cmd cur prev line subcmds opts
+    COMPREPLY=()
+    cmd="${1##*/}"
+    cur="${COMP_WORDS[COMP_CWORD]}" # called 'cur' by convention [1]
+    prev="${COMP_WORDS[COMP_CWORD-1]}"
+    line="${COMP_LINE}"
+    subcmds="encrypt decrypt"
+    opts="--help"
+
+    if [[ "$COMP_CWORD" == 1 ]]; then
+	COMPREPLY=($(compgen -W "${subcmds} ${opts}" -- "${cur}"))
+	return 0
+    elif [[ ${COMP_WORDS[1]} == "--help" ]]; then
+	COMPREPLY=(" ") # none empty
+	>&2 printf "\n${cmd}: No completion on '--help'"
+	return 0
+    fi
+
+    return 0
+}
+
+complete -o filenames -o default -F _repo-encrypt repo-encrypt # There are details [2]
+
+# [1]: http://tldp.org/LDP/abs/html/tabexpansion.html
+# [2]: http://www.gnu.org/software/bash/manual/bash.html#Programmable-Completion
-- 
2.39.5