mirror of
https://github.com/ddworken/hishtory.git
synced 2024-11-23 00:34:27 +01:00
74 lines
2.9 KiB
Bash
74 lines
2.9 KiB
Bash
# This script should be sourced inside of .bashrc to integrate bash with hishtory
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# Include guard. This file is sourced in multiple places, but we want it to only execute once.
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# This trick is from https://stackoverflow.com/questions/7518584/is-there-any-mechanism-in-shell-script-alike-include-guard-in-c
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if [ -n "$__hishtory_bash_config_sourced" ]; then return; fi
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__hishtory_bash_config_sourced=true
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# For detecting color rendering support for this terminal, see #134
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hishtory getColorSupport
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export _hishtory_tui_color=$?
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# Implementation of running before/after every command based on https://jichu4n.com/posts/debug-trap-and-prompt_command-in-bash/
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function __hishtory_precommand() {
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if [ -z "${HISHTORY_AT_PROMPT:-}" ]; then
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return
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fi
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unset HISHTORY_AT_PROMPT
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# Run before every command
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HISHTORY_START_TIME=`hishtory getTimestamp`
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CMD=`history 1`
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if ! [ -z "CMD " ] ; then
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# This code with $LAST_PRESAVED_COMMAND and $LAST_SAVED_COMMAND is necessary to work around a quirk of
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# bash. With bash, if you run the command `foo` and then press `Control+R`, it will trigger the DEBUG
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# signal. And `history 1` will still return `foo` so this will lead to duplicate pre-saves causing entries
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# to show up twice. This works around this issue by skipping presaving if the last commadn we presaved
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# was identical.
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#
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# This does lead to a potential correctness bug since it means if someone runs the same non-terminating
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# command twice in a row, we won't pre-save the second entry. But this seems reasonably unlikely
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# such that it is worth accepting this issue to mitigate the duplicate entries observed in
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# https://github.com/ddworken/hishtory/issues/215.
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if [[ "$CMD" != "$LAST_PRESAVED_COMMAND" ]] && [[ "$CMD" != "$LAST_SAVED_COMMAND" ]]; then
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(hishtory presaveHistoryEntry bash "$CMD" $HISHTORY_START_TIME &) # Background Run
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# hishtory presaveHistoryEntry bash "$CMD" $HISHTORY_START_TIME # Foreground Run
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fi
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fi
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LAST_PRESAVED_COMMAND=$CMD
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}
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trap "__hishtory_precommand" DEBUG
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HISHTORY_FIRST_PROMPT=1
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function __hishtory_postcommand() {
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EXIT_CODE=$?
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HISHTORY_AT_PROMPT=1
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if [ -n "${HISHTORY_FIRST_PROMPT:-}" ]; then
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unset HISHTORY_FIRST_PROMPT
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return
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fi
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# Run after every prompt
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CMD=`history 1`
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(hishtory saveHistoryEntry bash $EXIT_CODE "$CMD" $HISHTORY_START_TIME &) # Background Run
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# hishtory saveHistoryEntry bash $EXIT_CODE "$CMD" $HISHTORY_START_TIME # Foreground Run
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LAST_SAVED_COMMAND=$CMD
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(hishtory updateLocalDbFromRemote &)
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}
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PROMPT_COMMAND="__hishtory_postcommand; $PROMPT_COMMAND"
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export HISTTIMEFORMAT=$HISTTIMEFORMAT
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__history_control_r() {
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READLINE_LINE=$(HISHTORY_TERM_INTEGRATION=1 HISHTORY_SHELL_NAME=bash hishtory tquery "$READLINE_LINE")
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READLINE_POINT=0x7FFFFFFF
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}
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__hishtory_bind_control_r() {
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bind -x '"\C-r": __history_control_r'
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}
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[ "$(hishtory config-get enable-control-r)" = true ] && __hishtory_bind_control_r
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