165 lines
4.8 KiB
Bash
165 lines
4.8 KiB
Bash
#!/usr/bin/env bash
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#
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# A collection of reusable functions.
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###########################################################################
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# Generic utilies
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###########################################################################
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_bash-it-get-component-name-from-path() {
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# filename without path
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filename=${1##*/}
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# filename without path or priority
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filename=${filename##*---}
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# filename without path, priority or extension
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echo ${filename%.*.bash}
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}
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_bash-it-get-component-type-from-path() {
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# filename without path
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filename=${1##*/}
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# filename without path or priority
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filename=${filename##*---}
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# extension
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echo ${filename} | cut -d '.' -f 2
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}
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# This function searches an array for an exact match against the term passed
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# as the first argument to the function. This function exits as soon as
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# a match is found.
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#
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# Returns:
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# 0 when a match is found, otherwise 1.
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#
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# Examples:
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# $ declare -a fruits=(apple orange pear mandarin)
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#
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# $ _bash-it-array-contains-element apple "@{fruits[@]}" && echo 'contains apple'
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# contains apple
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#
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# $ if $(_bash-it-array-contains-element pear "${fruits[@]}"); then
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# echo "contains pear!"
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# fi
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# contains pear!
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#
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#
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_bash-it-array-contains-element() {
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local e
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for e in "${@:2}"; do
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[[ "$e" == "$1" ]] && return 0
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done
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return 1
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}
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# Dedupe a simple array of words without spaces.
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_bash-it-array-dedup() {
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echo "$*" | tr ' ' '\n' | sort -u | tr '\n' ' '
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}
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# Outputs a full path of the grep found on the filesystem
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_bash-it-grep() {
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if [[ -z "${BASH_IT_GREP}" ]] ; then
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export BASH_IT_GREP="$(which egrep || which grep || '/usr/bin/grep')"
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fi
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printf "%s " "${BASH_IT_GREP}"
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}
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###########################################################################
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# Component-specific functions (component is either an alias, a plugin, or a
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# completion).
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###########################################################################
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_bash-it-component-help() {
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local component=$(_bash-it-pluralize-component "${1}")
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local file=$(_bash-it-component-cache-file ${component})
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if [[ ! -s "${file}" || -z $(find "${file}" -mmin -300) ]] ; then
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rm -f "${file}" 2>/dev/null
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local func="_bash-it-${component}"
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${func} | $(_bash-it-grep) -E ' \[' | cat > ${file}
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fi
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cat "${file}"
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}
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_bash-it-component-cache-file() {
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local component=$(_bash-it-pluralize-component "${1}")
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local file="${BASH_IT}/tmp/cache/${component}"
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[[ -f ${file} ]] || mkdir -p $(dirname ${file})
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printf "${file}"
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}
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_bash-it-pluralize-component() {
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local component="${1}"
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local len=$(( ${#component} - 1 ))
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# pluralize component name for consistency
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[[ ${component:${len}:1} != 's' ]] && component="${component}s"
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[[ ${component} == "alias" ]] && component="aliases"
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printf ${component}
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}
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_bash-it-clean-component-cache() {
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local component="$1"
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local cache
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local -a BASH_IT_COMPONENTS=(aliases plugins completions)
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if [[ -z ${component} ]] ; then
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for component in "${BASH_IT_COMPONENTS[@]}" ; do
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_bash-it-clean-component-cache "${component}"
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done
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else
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cache="$(_bash-it-component-cache-file ${component})"
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if [[ -f "${cache}" ]] ; then
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rm -f "${cache}"
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fi
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fi
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}
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# Returns an array of items within each compoenent.
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_bash-it-component-list() {
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local component="$1"
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_bash-it-component-help "${component}" | awk '{print $1}' | uniq | sort | tr '\n' ' '
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}
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_bash-it-component-list-matching() {
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local component="$1"; shift
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local term="$1"
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_bash-it-component-help "${component}" | $(_bash-it-grep) -E -- "${term}" | awk '{print $1}' | sort | uniq
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}
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_bash-it-component-list-enabled() {
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local component="$1"
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_bash-it-component-help "${component}" | $(_bash-it-grep) -E '\[x\]' | awk '{print $1}' | uniq | sort | tr '\n' ' '
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}
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_bash-it-component-list-disabled() {
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local component="$1"
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_bash-it-component-help "${component}" | $(_bash-it-grep) -E -v '\[x\]' | awk '{print $1}' | uniq | sort | tr '\n' ' '
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}
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# Checks if a given item is enabled for a particular component/file-type.
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# Uses the component cache if available.
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#
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# Returns:
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# 0 if an item of the component is enabled, 1 otherwise.
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#
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# Examples:
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# _bash-it-component-item-is-enabled alias git && echo "git alias is enabled"
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_bash-it-component-item-is-enabled() {
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local component="$1"
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local item="$2"
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_bash-it-component-help "${component}" | $(_bash-it-grep) -E '\[x\]' | $(_bash-it-grep) -E -q -- "^${item}\s"
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}
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# Checks if a given item is disabled for a particular component/file-type.
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# Uses the component cache if available.
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#
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# Returns:
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# 0 if an item of the component is enabled, 1 otherwise.
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#
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# Examples:
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# _bash-it-component-item-is-disabled alias git && echo "git aliases are disabled"
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_bash-it-component-item-is-disabled() {
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local component="$1"
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local item="$2"
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_bash-it-component-help "${component}" | $(_bash-it-grep) -E -v '\[x\]' | $(_bash-it-grep) -E -q -- "^${item}\s"
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}
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