On Tue-2011/01/25-14:23 hubert depesz lubaczewski wrote in
<20110125132342.ga18...@depesz.com>:
> To help me with it, I wrote simple script (attached to this mail), which
> perhaps you will find useful.
Minor nits about quoting: both $((...)) and subscript [...] in bash
treat their arguments as numbers, $(...) (command substitution) is
implicitly quoted on the outside, which eases quotes on the inside.
Also, lines can be separated at pipes.
#+v
--- tmux-auto-reattach.0 2011-01-28 21:17:50.617641902 +0100
+++ tmux-auto-reattach 2011-01-28 21:32:50.192984908 +0100
@@ -82,11 +82,11 @@
show_help_and_exit "Unknown option -%s" "$OPTARG"
;;
esac
done
-shift $(( $OPTIND - 1 ))
+shift $(( OPTIND - 1 ))
if [[ "$1" = -- ]]
then
shift
fi
@@ -98,11 +98,11 @@
if [[ -z "$session_name" ]]
then
session_name="${1##*/}"
fi
-stringified_command_for_tmux="$( printf '%q ' "$@" )"
+stringified_command_for_tmux=$( printf '%q ' "$@" )
if (( "$singleton" == 1 ))
then
if tmux has -t "$session_name" > /dev/null 2>&1
then
@@ -114,11 +114,14 @@
# but since I don't care about such characters in arguments to normal
# tmuxable programs:
exec tmux new-session -s "$session_name" "exec
$stringified_command_for_tmux"
fi
-interesting_sessions_list="$( LC_ALL=C tmux list-sessions 2> /dev/null | grep
-E "^${session_name}(-[0-9]+)?:" )"
+interesting_sessions_list=$(
+ LC_ALL=C tmux list-sessions 2> /dev/null |
+ grep -E "^${session_name}(-[0-9]+)?:"
+ )
if [[ -z "$interesting_sessions_list" ]]
then
exec tmux new-session -s "$session_name" "exec
$stringified_command_for_tmux"
fi
@@ -130,22 +133,23 @@
just_name="${session_line%%:*}"
[[ "$just_name" =~ $matching_regex ]] || continue
number_in_name="${just_name##*-}"
if (( $number_in_name >= $potential_new_session_number ))
then
- potential_new_session_number=$(( $number_in_name + 1 ))
+ potential_new_session_number=$(( number_in_name + 1 ))
fi
done <<< "$interesting_sessions_list"
-detached_sessions="$( echo "$interesting_sessions_list" | grep -vE '
\(attached\)$' )"
+detached_sessions=$( echo "$interesting_sessions_list" | grep -vE '
\(attached\)$' )
if [[ -z "$detached_sessions" ]]
then
- exec tmux new-session -s "${session_name}-${potential_new_session_number}"
"exec $stringified_command_for_tmux"
+ exec tmux new-session -s "${session_name}-${potential_new_session_number}"
\
+ "exec $stringified_command_for_tmux"
fi
-detached_sessions_count="$( echo "$detached_sessions" | wc -l )"
+detached_sessions_count=$( echo "$detached_sessions" | wc -l )
if (( "$detached_sessions_count" == 1 ))
then
exec tmux attach-session -t "${detached_sessions%%:*}"
fi
@@ -160,28 +164,30 @@
this_session_name="${line%%:*}"
session_names[$i]="$this_session_name"
suffix_removed="${line%)*}"
session_text="${suffix_removed##*(}"
- whiptail_options[$(( $i * 2 ))]="$i."
- whiptail_options[$(( $i * 2 + 1))]="$session_text"
+ whiptail_options[i * 2]="$i."
+ whiptail_options[i * 2 + 1]="$session_text"
done <<< "$detached_sessions"
-whiptail_output="$( mktemp )"
+whiptail_output=$( mktemp )
trap "rm -f $whiptail_output" EXIT
-whiptail --title "Choose session to connect to:" --menu "" 17 41 10
"${whiptail_options[@]}" 2> "$whiptail_output"
+whiptail --title "Choose session to connect to:" --menu "" 17 41 10 \
+ "${whiptail_options[@]}" 2> "$whiptail_output"
user_choice=$( < "$whiptail_output" )
rm -f "$whiptail_output"
if [[ -z $user_choice ]]
then
exit
fi
if [[ $user_choice == "0." ]]
then
- exec tmux new-session -s "${session_name}-${potential_new_session_number}"
"exec $stringified_command_for_tmux"
+ exec tmux new-session -s "${session_name}-${potential_new_session_number}"
\
+ "exec $stringified_command_for_tmux"
fi
session_index="${user_choice%.}"
exec tmux attach-session -t "${session_names[$session_index]}"
#-v
clemens
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