dotfiles/config/i3/clipmenu

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#!/bin/bash
shopt -s nullglob
# We use this to make sure the cache files are sorted bytewise
LC_COLLATE=C
# Some people copy/paste huge swathes of text that could slow down dmenu
line_length_limit=500
declare -A selections
ordered_selections=()
files=("$HOME/.clipmenu/"*)
# We can't use `for ... in` here because we need to add files to
# ordered_selections from last to first -- that is, newest to oldest. Incoming
# clipboard entries have a ISO datetime prefixed to the front to aid in this.
for (( i=${#files[@]}-1; i>=0; i-- )); do
file=${files[$i]}
# We look for the first line matching regex /./ here because we want the
# first line that can provide reasonable context to the user. That is, if
# you have 5 leading lines of whitespace, displaying " (6 lines)" is much
# less useful than displaying "foo (6 lines)", where "foo" is the first
# line in the entry with actionable context.
first_line=$(sed -n '/./{p;q}' "$file" | cut -c1-"$line_length_limit")
lines=$(wc -l < "$file")
if (( lines > 1 )); then
first_line+=" ($lines lines)"
fi
ordered_selections+=("$first_line")
selections[$first_line]=$file
done
# It's okay to hardcode `-l 8` here as a sensible default without checking
# whether `-l` is also in "$@", because the way that dmenu works allows a later
# argument to override an earlier one. That is, if the user passes in `-l`, our
# one will be ignored.
chosen_line=$(printf '%s\n' "${ordered_selections[@]}" | uniq | $HOME/.config/i3/dmenu_cmd -l 8 -p "Copy" "$@")
[[ $chosen_line ]] || exit 1
for selection in clipboard primary; do
if type -p xsel >/dev/null 2>&1; then
xsel --logfile /dev/null -i --"$selection" < "${selections[$chosen_line]}"
else
xclip -sel "$selection" < "${selections[$chosen_line]}"
fi
done