[bug#31849] [PATCH] Add guix-daemon Bash completion file.

[Oleg Pykhalov]

* etc/completion/bash/guix-daemon: New file.
* Makefile.am (dist_bashcompletion_DATA): Add this.
---
 Makefile.am                     |  4 +++-
 etc/completion/bash/guix-daemon | 30 ++++++++++++++++++++++++++++++
 2 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 etc/completion/bash/guix-daemon

diff --git a/Makefile.am b/Makefile.am
index 61a19b6b9..ab145065d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -11,6 +11,7 @@
 # Copyright © 2017 Arun Isaac <address@hidden>
 # Copyright © 2018 Nils Gillmann <address@hidden>
 # Copyright © 2018 Julien Lepiller <address@hidden>
+# Copyright © 2018 Oleg Pykhalov <address@hidden>
 #
 # This file is part of GNU Guix.
 #
@@ -454,7 +455,8 @@ dist_pkgdata_DATA =                         \
   berlin.guixsd.org.pub
 
 # Bash completion file.
-dist_bashcompletion_DATA = etc/completion/bash/guix
+dist_bashcompletion_DATA = etc/completion/bash/guix    \
+  etc/completion/bash/guix-daemon
 
 # Zsh completion file.
 dist_zshcompletion_DATA = etc/completion/zsh/_guix
diff --git a/etc/completion/bash/guix-daemon b/etc/completion/bash/guix-daemon
new file mode 100644
index 000000000..997c142c7
--- /dev/null
+++ b/etc/completion/bash/guix-daemon
@@ -0,0 +1,30 @@
+# GNU Guix --- Functional package management for GNU
+# Copyright © 2018 Oleg Pykhalov <address@hidden>
+#
+# This file is part of GNU Guix.
+#
+# GNU Guix is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or (at
+# your option) any later version.
+#
+# GNU Guix is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+# Bash completion for guix-daemon command.
+
+_guix_daemon_complete ()
+{
+    local options="$(${COMP_WORDS[0]} --help 2> /dev/null \
+                            | grep '^  \+-' \
+                            | sed 
-e's/^.*--\([a-zA-Z0-9_-]\+\)\(=\?\).*/--\1\2/g')"
+    compopt -o nospace
+    COMPREPLY=($(compgen -W "$options" -- "${COMP_WORDS[${#COMP_WORDS[*]} - 
1]}"))
+}
+
+complete -F _guix_daemon_complete guix-daemon
-- 
2.17.1