Move to shell/ in preparation for merge into new dotfiles repository

[config/dotfiles.git] / shell / bin / sc

diff --git a/shell/bin/sc b/shell/bin/sc
new file mode 100755 (executable)
index 0000000..506e90a
--- /dev/null
+++ b/shell/bin/sc
@@ -0,0 +1,53 @@
+#!/bin/bash
+
+# Small wrapper for systemctl which provides some shortcuts.
+
+# Copyright (C) 2015  Simon Ruderich
+#
+# This program 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.
+#
+# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+set -eu
+
+
+args=( )
+found=
+for arg; do
+    # This heuristic replaces the first occurrence of a shortcut with its
+    # expansion. This is not perfect (e.g. `systemctl status s` would result
+    # in `systemctl status status`) but works even when options are used and
+    # doesn't require us to duplicate systemctl's parsing of command line
+    # arguments.
+    if [[ -z $found ]]; then
+        found=1
+        case "$arg" in
+            c)  arg=cat     ;;
+            d)  arg=disable ;;
+            e)  arg=enable  ;;
+            k)  arg=kill    ;;
+            m)  arg=mask    ;;
+            r)  arg=restart ;;
+            rl) arg=reload  ;;
+            s)  arg=status  ;;
+            sa) arg=start   ;;
+            so) arg=stop    ;;
+            u)  arg=unmask  ;;
+            # No match, try it again for the next parameter.
+            *)  found=      ;;
+        esac
+    fi
+    args+=( "$arg" )
+done
+
+set +u # empty $args causes an error, I think this is a bug in bash
+exec systemctl "${args[@]}"