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Create and use library of common functions
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| #!/bin/sh | ||
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| # Find the executable passed as an argument in the PATH variable and print it. | ||
| find_exec() { | ||
| while IFS= read -r dir; do | ||
| if [ -n "${dir}" ] && [ -d "${dir}" ]; then | ||
| if [ -x "${dir%/}/$1" ] && [ "${dir%/}/$1" != "$(abspath "$0")" ]; then | ||
| printf %s\\n "${dir%/}/$1" | ||
| break | ||
| fi | ||
| fi | ||
| done <<EOF | ||
| $(printf %s\\n "$PATH"|tr ':' '\n') | ||
| EOF | ||
| } | ||
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| # shellcheck disable=SC2120 # Take none or one argument | ||
| to_lower() { | ||
| if [ -z "${1:-}" ]; then | ||
| tr '[:upper:]' '[:lower:]' | ||
| else | ||
| printf %s\\n "$1" | to_lower | ||
| fi | ||
| } | ||
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| is_true() { | ||
| case "$(to_lower "${1:-}")" in | ||
| 1 | true | yes | y | on | t) return 0;; | ||
| *) return 1;; | ||
| esac | ||
| } | ||
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| # shellcheck disable=SC2120 # Function has good default. | ||
| random_string() { | ||
| LC_ALL=C tr -dc 'a-zA-Z0-9' < /dev/urandom | head -c "${1:-12}" | ||
| } | ||
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| usage() { | ||
| # This uses the comments behind the options to show the help. Not extremly | ||
| # correct, but effective and simple. | ||
| echo "$0 -- ${KRUNVM_RUNNER_MAIN:-"Part of the gh-krunvm-runner project"}" && \ | ||
| grep "[[:space:]].) #" "$0" | | ||
| sed 's/#//' | | ||
| sed -r 's/([a-z-])\)/-\1/' | ||
| exit "${1:-0}" | ||
| } | ||
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| # PML: Poor Man's Logging | ||
| _log() { | ||
| printf '[%s] [%s] [%s] %s\n' \ | ||
| "$(basename "$0")" \ | ||
| "${2:-LOG}" \ | ||
| "$(date +'%Y%m%d-%H%M%S')" \ | ||
| "${1:-}" \ | ||
| >&"$KRUNVM_RUNNER_LOG" | ||
| } | ||
| trace() { if [ "${KRUNVM_RUNNER_VERBOSE:-0}" -ge "3" ]; then _log "$1" TRC; fi; } | ||
| debug() { if [ "${KRUNVM_RUNNER_VERBOSE:-0}" -ge "2" ]; then _log "$1" DBG; fi; } | ||
| verbose() { if [ "${KRUNVM_RUNNER_VERBOSE:-0}" -ge "1" ]; then _log "$1" NFO; fi; } | ||
| info() { if [ "${KRUNVM_RUNNER_VERBOSE:-0}" -ge "1" ]; then _log "$1" NFO; fi; } | ||
| warn() { _log "$1" WRN; } | ||
| error() { _log "$1" ERR && exit 1; } | ||
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