Added option --check-inhibitors for non-tty usage

As described in #2680, systemctl did ignore inhibitors if it is not
attached to a tty to allow scripts to ignore inhibitors automatically.
This pull request preserves this behavior but allows scripts to
explicit check inhibitors if required.

The new parameter '--check-inhibitors=yes' enables this feature.
The old parameter '-i'/'--ignore-inhibitors' was deprecated in favor
of '--check-inhibitors=no', the default behaviour can be specified
with '--check-inhibitors=auto'.
The new parameter is also described in the documentations and shell
completions found here.

1 files changed, 8 insertions, 1 deletions

diff --git a/shell-completion/zsh/_systemctl.in b/shell-completion/zsh/_systemctl.in
index 22c40898e3..10af6d5121 100644
--- a/shell-completion/zsh/_systemctl.in
+++ b/shell-completion/zsh/_systemctl.in
@@ -443,6 +443,13 @@ done
         _values -s , "${_styles[@]}"
     }
 
+(( $+functions[_systemctl_check_inhibitors] )) ||
+    _systemctl_check_inhibitors() {
+        local -a _modes
+        _modes=(auto yes no)
+        _values -s , "${_modes[@]}"
+    }
+
 # Build arguments for "systemctl" to be used in completion.
 local -a _modes; _modes=("--user" "--system")
 # Use the last mode (they are exclusive and the last one is used).
@@ -460,7 +467,7 @@ _arguments -s \
     '--before[Show units ordered before]' \
     {-l,--full}"[Don't ellipsize unit names on output]" \
     '--show-types[When showing sockets, show socket type]' \
-    {-i,--ignore-inhibitors}'[When executing a job, ignore jobs dependencies]' \
+    '--check-inhibitors[Specify if inhibitors should be checked]:mode:_systemctl_check_inhibitors' \
     {-q,--quiet}'[Suppress output]' \
     '--no-block[Do not wait until operation finished]' \
     '--no-legend[Do not print a legend, i.e. the column headers and the footer with hints]' \