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105 lines
4.1 KiB
105 lines
4.1 KiB
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# shellcheck source=hooks.sh
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. ~/.resh/hooks.sh
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__resh_helper_arrow_pre() {
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# this is a very bad workaround
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# force bash-preexec to run repeatedly because otherwise premature run of bash-preexec overshadows the next poper run
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# I honestly think that it's impossible to make widgets work in bash without hacks like this
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# shellcheck disable=2034
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__bp_preexec_interactive_mode="on"
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# set recall strategy
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__RESH_HIST_RECALL_STRATEGY="bash_recent - history-search-{backward,forward}"
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# set prefix
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__RESH_PREFIX=${BUFFER:0:$CURSOR}
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# cursor not at the end of the line => end "NO_PREFIX_MODE"
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[ "$CURSOR" -ne "${#BUFFER}" ] && __RESH_HIST_NO_PREFIX_MODE=0
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# if user moved the cursor or made edits (to prefix) from last recall action
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# => restart histno AND deactivate "NO_PREFIX_MODE" AND clear end of recall list histno
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[ "$__RESH_PREFIX" != "$__RESH_HIST_PREV_PREFIX" ] && __RESH_HISTNO=0 && __RESH_HIST_NO_PREFIX_MODE=0 && __RESH_HISTNO_MAX=""
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# "NO_PREFIX_MODE" => set prefix to empty string
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[ "$__RESH_HIST_NO_PREFIX_MODE" -eq 1 ] && __RESH_PREFIX=""
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# histno == 0 => save current line
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[ "$__RESH_HISTNO" -eq 0 ] && __RESH_HISTNO_ZERO_LINE=$BUFFER
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}
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__resh_helper_arrow_post() {
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# cursor at the beginning of the line => activate "NO_PREFIX_MODE"
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[ "$CURSOR" -eq 0 ] && __RESH_HIST_NO_PREFIX_MODE=1
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# "NO_PREFIX_MODE" => move cursor to the end of the line
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[ "$__RESH_HIST_NO_PREFIX_MODE" -eq 1 ] && CURSOR=${#BUFFER}
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# save current prefix so we can spot when user moves cursor or edits (the prefix part of) the line
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__RESH_HIST_PREV_PREFIX=${BUFFER:0:$CURSOR}
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}
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__resh_widget_arrow_up() {
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# run helper function
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__resh_helper_arrow_pre
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# append curent recall action
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__RESH_HIST_RECALL_ACTIONS="$__RESH_HIST_RECALL_ACTIONS;arrow_up:$__RESH_PREFIX"
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# increment histno
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__RESH_HISTNO=$((__RESH_HISTNO+1))
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if [ "${#__RESH_HISTNO_MAX}" -gt 0 ] && [ "${__RESH_HISTNO}" -gt "${__RESH_HISTNO_MAX}" ]; then
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# end of the recall list -> don't recall, do nothing
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# fix histno
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__RESH_HISTNO=$((__RESH_HISTNO-1))
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elif [ "$__RESH_HISTNO" -eq 0 ]; then
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# back at histno == 0 => restore original line
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BUFFER=$__RESH_HISTNO_ZERO_LINE
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else
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# run recall
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local NEW_BUFFER
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local status_code
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NEW_BUFFER="$(__resh_collect --recall --prefix-search "$__RESH_PREFIX" 2> ~/.resh/arrow_up_last_run_out.txt)"
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status_code=$?
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# revert histno change on error
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# shellcheck disable=SC2015
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if [ "${status_code}" -eq 0 ]; then
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BUFFER=$NEW_BUFFER
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else
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__RESH_HISTNO=$((__RESH_HISTNO-1))
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__RESH_HISTNO_MAX=$__RESH_HISTNO
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fi
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fi
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# run post helper
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__resh_helper_arrow_post
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}
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__resh_widget_arrow_down() {
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# run helper function
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__resh_helper_arrow_pre
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# append curent recall action
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__RESH_HIST_RECALL_ACTIONS="$__RESH_HIST_RECALL_ACTIONS;arrow_down:$__RESH_PREFIX"
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# increment histno
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__RESH_HISTNO=$((__RESH_HISTNO-1))
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# prevent HISTNO from getting negative (for now)
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[ "$__RESH_HISTNO" -lt 0 ] && __RESH_HISTNO=0
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# back at histno == 0 => restore original line
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if [ "$__RESH_HISTNO" -eq 0 ]; then
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BUFFER=$__RESH_HISTNO_ZERO_LINE
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else
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# run recall
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local NEW_BUFFER
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NEW_BUFFER="$(__resh_collect --recall --prefix-search "$__RESH_PREFIX" 2> ~/.resh/arrow_down_last_run_out.txt)"
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# IF new buffer in non-empty THEN use the new buffer ELSE revert histno change
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# shellcheck disable=SC2015
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[ "${#NEW_BUFFER}" -gt 0 ] && BUFFER=$NEW_BUFFER || (( __RESH_HISTNO++ ))
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fi
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__resh_helper_arrow_post
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}
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__resh_widget_control_R() {
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local __RESH_PREFIX=${BUFFER:0:CURSOR}
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__RESH_HIST_RECALL_ACTIONS="$__RESH_HIST_RECALL_ACTIONS;control_R:$__RESH_PREFIX"
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# resh-collect --hstr
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hstr
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}
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__resh_widget_arrow_up_compat() {
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__bindfunc_compat_wrapper __resh_widget_arrow_up
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}
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__resh_widget_arrow_down_compat() {
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__bindfunc_compat_wrapper __resh_widget_arrow_down
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}
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__resh_widget_control_R_compat() {
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__bindfunc_compat_wrapper __resh_widget_control_R
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}
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