82 lines
2.2 KiB
Bash
82 lines
2.2 KiB
Bash
# shellcheck shell=bash
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# shellcheck disable=SC2034
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#
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# Load the `bash-preexec.sh` library, and define helper functions
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## Prepare, load, fix, and install `bash-preexec.sh`
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# Disable `$PROMPT_COMMAND` modification for now.
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__bp_delay_install="delayed"
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# shellcheck source-path=SCRIPTDIR/../vendor/github.com/rcaloras/bash-preexec
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source "${BASH_IT?}/vendor/github.com/rcaloras/bash-preexec/bash-preexec.sh"
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# Block damanaging user's `$HISTCONTROL`
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function __bp_adjust_histcontrol() { :; }
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# Don't fail on readonly variables
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function __bp_require_not_readonly() { :; }
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# For performance, testing, and to avoid unexpected behavior: disable DEBUG traps in subshells.
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# See bash-it/bash-it#1040 and rcaloras/bash-preexec#26
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: "${__bp_enable_subshells:=}" # blank
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# Modify `$PROMPT_COMMAND` in finalize hook
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_bash_it_library_finalize_hook+=('__bp_install_after_session_init')
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## Helper functions
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function __check_precmd_conflict() {
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local f
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__bp_trim_whitespace f "${1?}"
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_bash-it-array-contains-element "${f}" "${precmd_functions[@]}"
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}
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function __check_preexec_conflict() {
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local f
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__bp_trim_whitespace f "${1?}"
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_bash-it-array-contains-element "${f}" "${preexec_functions[@]}"
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}
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function safe_append_prompt_command() {
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local prompt_re prompt_er f
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if [[ "${bash_preexec_imported:-${__bp_imported:-missing}}" == "defined" ]]
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then
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# We are using bash-preexec
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__bp_trim_whitespace f "${1?}"
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if ! __check_precmd_conflict "${f}"
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then
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precmd_functions+=("${f}")
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fi
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else
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# Match on word-boundaries
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prompt_re='(^|[^[:alnum:]_])'
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prompt_er='([^[:alnum:]_]|$)'
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if [[ ${PROMPT_COMMAND} =~ ${prompt_re}"${1}"${prompt_er} ]]
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then
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return
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elif [[ -z ${PROMPT_COMMAND} ]]
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then
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PROMPT_COMMAND="${1}"
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else
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PROMPT_COMMAND="${1};${PROMPT_COMMAND}"
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fi
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fi
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}
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function safe_append_preexec() {
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local prompt_re f
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if [[ "${bash_preexec_imported:-${__bp_imported:-missing}}" == "defined" ]]
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then
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# We are using bash-preexec
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__bp_trim_whitespace f "${1?}"
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if ! __check_preexec_conflict "${f}"
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then
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preexec_functions+=("${f}")
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fi
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else
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_log_error "${FUNCNAME[0]}: can't append to preexec hook because _bash-preexec.sh_ hasn't been loaded"
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fi
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}
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