Add tons of debug logging
I'm hoping this will help debug #33, #32, and #26.
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60
clipmenud
60
clipmenud
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@ -1,5 +1,42 @@
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#!/bin/bash
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hr_msg() {
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printf -- '\n--- %s ---\n\n' "$1" >&2
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}
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debug() {
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if (( DEBUG )); then
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printf '%s\n' "$@" >&2
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fi
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}
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print_debug_info() {
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# DEBUG comes from the environment
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if ! (( DEBUG )); then
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return
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fi
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local msg="${1?}"
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hr_msg "$msg"
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hr_msg Environment
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env | LC_ALL=C sort >&2
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cgroup_path=/proc/$$/cgroup
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if [[ -f $cgroup_path ]]; then
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hr_msg cgroup
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cat "$cgroup_path" >&2
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else
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hr_msg 'NO CGROUP'
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fi
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hr_msg 'Finished debug info'
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}
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print_debug_info 'Initialising'
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cache_dir=/tmp/clipmenu.$USER/
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# It's ok that this only applies to the final directory.
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@ -10,8 +47,13 @@ declare -A last_data
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declare -A last_filename
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while sleep "${CLIPMENUD_SLEEP:-0.5}"; do
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print_debug_info 'About to run selection'
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for selection in clipboard primary; do
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print_debug_info "About to do selection for '$selection'"
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if type -p xsel >/dev/null 2>&1; then
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debug 'Using xsel'
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data=$(xsel --"$selection"; printf x)
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# Take ownership of the clipboard, in case the original application
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# is unable to serve the clipboard request (due to being suspended,
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@ -24,6 +66,7 @@ while sleep "${CLIPMENUD_SLEEP:-0.5}"; do
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xsel --"$selection" | xsel -i --"$selection"
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fi
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else
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debug 'Using xclip'
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data=$(xclip -o -sel "$selection"; printf x)
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# See above comments about taking ownership of the clipboard for
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# context.
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@ -32,19 +75,31 @@ while sleep "${CLIPMENUD_SLEEP:-0.5}"; do
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fi
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fi
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debug "Data before stripping: $data"
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# We add and remove the x so that trailing newlines are not stripped.
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# Otherwise, they would be stripped by the very nature of how POSIX
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# defines command substitution.
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data=${data%x}
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[[ $data == *[^[:blank:]]* ]] || continue
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debug "Data after stripping: $data"
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[[ ${last_data[$selection]} == "$data" ]] && continue
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if [[ $data == *[^[:blank:]]* ]]; then
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debug "Skipping as clipboard is only blank"
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continue
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fi
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if [[ ${last_data[$selection]} == "$data" ]]; then
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debug 'Skipping as last selection is the same as this one'
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continue
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fi
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# If we were in the middle of doing a selection when the previous poll
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# ran, then we may have got a partial clip.
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possible_partial=${last_data[$selection]}
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if [[ $possible_partial && $data == "$possible_partial"* ]]; then
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debug "$possible_partial is a possible partial of $data"
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debug "Removing ${last_filename[$selection]}"
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rm -- "${last_filename[$selection]}"
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fi
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@ -53,6 +108,7 @@ while sleep "${CLIPMENUD_SLEEP:-0.5}"; do
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last_data[$selection]=$data
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last_filename[$selection]=$filename
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debug "Writing $data to $filename"
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printf '%s' "$data" > "$filename"
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done
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done
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