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has
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feature_58: Add support for detecting the stdout (#63) 

Resolve whether decoration (color) is needed based on flags --color_{auto,never,always} (auto is default).
If --color_auto is passed, text decoration will ocurr only to the stdout.
If --color_{never,always} is passed, will or will not occur in any case.
This commit is contained in:
Maksym Bilyk 2023-07-28 17:16:39 +03:00 committed by GitHub
parent 8b43040ce2
commit 54c334962c
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1 changed files with 37 additions and 4 deletions
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@ -34,6 +34,14 @@ readonly checkmark='\342\234\223'
readonly PASS="${txtbold}${txtgreen}${checkmark}${txtreset}"
readonly FAIL="${txtbold}${txtred}${fancyx}${txtreset}"
## These variables are used to control decoration of output
COLOR_AUTO="auto"
COLOR_NEVER="never"
COLOR_ALWAYS="always"
COLOR_OPTS=(${COLOR_AUTO} ${COLOR_NEVER} ${COLOR_ALWAYS})
COLOR="${COLOR_AUTO}"
COLOR_PREFIX="--color"
## These variables are used to keep track of passed and failed commands
OK=0
KO=0
@ -62,6 +70,15 @@ _version() {
printf '%s\n' "${VERSION}"
}
# function to parse color option
_set_color() {
local found=0;
for opt in "${COLOR_OPTS[@]}"; do
[ "${1}" == "${COLOR_PREFIX}_${opt}" ] && COLOR="${opt}" && found=1 && break
done
[ ${found} -eq 1 ] || >&2 echo "Error: wrong flag ${1}"
}
# try to extract version by executing "${1}" with "${2}" arg
# command name to be executed is dynamically passed to this function as ${1}
# arg to ${1} is passed in ${2}
@ -101,6 +118,12 @@ __dynamic_detect-arg_version(){
__detect(){
name="${1}"
# default values (for case when decoration applied)
fail=${FAIL}
pass=${PASS}
wrapper_beg="${txtbold}${txtyellow}"
wrapper_end="${txtreset}"
# setup aliases - maps commonly used name to exact command name
case ${name} in
rust ) command="rustc" ;;
@ -276,20 +299,27 @@ __detect(){
;;
esac
if [ "${COLOR}" == "${COLOR_NEVER}" ] || [[ ! -t 1 && "${COLOR}" == "${COLOR_AUTO}" ]]; then
pass=${checkmark}
fail=${fancyx}
wrapper_beg=""
wrapper_end=""
fi
if [ "$status" -eq "-1" ]; then ## When unsafe processing is not allowed, the -1 signifies
printf '%b %s not understood\n' "${FAIL}" "${command}" > "$OUTPUT"
printf '%b %s not understood\n' "${fail}" "${command}" > "$OUTPUT"
KO=$(( KO+1 ))
elif [ ${status} -eq 127 ]; then ## command not installed
printf '%b %s\n' "${FAIL}" "${command}" > "$OUTPUT"
printf '%b %s\n' "${fail}" "${command}" > "$OUTPUT"
KO=$(( KO+1 ))
elif [ ${status} -eq 0 ] || [ ${status} -eq 141 ]; then ## successfully executed
printf "%b %s %b\n" "${PASS}" "${command}" "${txtbold}${txtyellow}${version}${txtreset}" > "$OUTPUT"
printf "%b %s %b\n" "${pass}" "${command}" "${wrapper_beg}${version}${wrapper_end}" > "$OUTPUT"
OK=$(( OK+1 ))
else ## as long as its not 127, command is there, but we might not have been able to extract version
printf '%b %s\n' "${PASS}" "${command}" > "$OUTPUT"
printf '%b %s\n' "${pass}" "${command}" > "$OUTPUT"
OK=$(( OK+1 ))
fi
} #end __detect
@ -325,6 +355,9 @@ while getopts ":qhV-" OPTION; do
_usage
exit 0
;;
${COLOR_PREFIX}*)
_set_color "${OPTION}"
;;
*)
printf '%s: unrecognized option '%s'\n' "${BINARY_NAME}" "${OPTARG}"
_usage