config

commit 40a93a63a38d6e1991dbba2f4db56dab34900f95
parent 568846730636e289f58841433a241109814eaf65
Author: Jacob R. Edwards <n/a>
Date:   Tue, 29 Nov 2022 17:45:03 -0600

Fix the buf script's show command's summmary

It's suppost to display only one line, appending ' [...]' if there
are more. But in the previous version, with only one line, nothing
would be displayed.

Diffstat:
M
local/bin/bin/buf
 | 
29
++++++++++++++++++-----------

1 file changed, 18 insertions(+), 11 deletions(-)
diff --git a/local/bin/bin/buf b/local/bin/bin/buf
@@ -9,16 +9,19 @@
 #
 #	name (get|set) sh(1) command to get or set
 #
-# A caveat to external buffers is that they cannot be dynamic. For
-# example, tmux maintains multiple buffers, yet only the default
-# one can reasonably be used with this script. This COULD and MAY
-# be changed in the future.
 #   If no buffer is specified, $XDG_CONFIG_HOME/bufs/default is
 # read to determine the default buffer to use.
 #   There is currently no way of removing buffers (since I would
 # only implement it for internal buffers, I'm not sure I want to
 # add the feature).
 
+# ____--___-___---__--_---_--_---_------_--________-----__--______--------_
+# The idea is to give arguments to the shell fragment in $config/external,
+# each one being a further restriction (for example tmux could be
+# 'tmux show-buffer -b "$1"', and running tmux/buffer1 would set
+# $1 to buffer1.
+# --------______----_____----__________----------______---__----_------____---
+
 bufs=/tmp/bufs/$(id -u)
 config="${XDG_CONFIG_HOME:-"$HOME"/.config}"/buf
 
@@ -52,19 +55,21 @@ external() {
 	}' < "$config"/external
 }
 
-getbuf() {
+getbuf() (
+	IFS=/
 	cat "$bufs/$1" 2>/dev/null ||
-		sh -c "$(external get "$1")"
-}
+		sh -c "$(external get "$1")" "$@"
+)
 
-setbuf() {
+setbuf() (
 	if set="$(external set "$1" 2>/dev/null)"
 	then
-		sh -c "$set"
+		IFS=/
+		sh -c "$set" "$@"
 	else
 		cat > "$bufs/$1"
 	fi
-}
+)
 
 swap() {
 	swap="$(mktemp "$bufs"/swapXXXXXX)"
@@ -79,6 +84,8 @@ swap() {
 
 default() cat "$config"/default
 
+summerize() awk 'NR>1{printf " [...]"; exit}{printf "%s", $0}END{printf "\n"}'
+
 set -eu
 
 mkdir -p "$bufs"
@@ -90,7 +97,7 @@ case "$#$com" in
 ([01]brief|[01]show)
 	for buf in $(buffers "$@")
 	do
-		echo "$buf" = "$(getbuf "$buf" | sed -n '1h; 2{ g; s/$/ [...]/p; q; }')"
+		echo "$buf" = "$(getbuf "$buf" | summerize)"
 	done
 	;;
 ([01]get)