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Same using 99% pure POSIX, for shells other than bash #12

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Same using 99% pure POSIX, for shells other than bash #12

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f4b0a07
Translate to (99%) POSIX sh
loreb Jun 9, 2021
344853b
Merge pull request #1 from loreb/loreb-posix-sh
loreb Jun 11, 2021
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47 changes: 47 additions & 0 deletions upto-posix.sh
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Original file line number Diff line number Diff line change
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#!/bin/sh
# shellcheck "$0"
upto() {
# "local" isn't POSIX technically...
local EXPRESSION="$1"
if [ -z "$EXPRESSION" ]; then
echo "A folder expression must be provided." >&2
return 1
fi
if [ "$EXPRESSION" = "/" ]; then
cd "/"
return #0
fi
local CURRENT_FOLDER="$(pwd)" # why not $PWD?
local MATCHED_DIR=""
local MATCHING=true

while [ "$MATCHING" = true ]; do
case "$CURRENT_FOLDER" in
(*${EXPRESSION}*)
MATCHED_DIR="$CURRENT_FOLDER"
CURRENT_FOLDER=$(dirname "$CURRENT_FOLDER") || return
;;
(*)
MATCHING=false ;;
esac
done
if [ -n "$MATCHED_DIR" ]; then
cd "$MATCHED_DIR"
return #0
else
echo "No Match." >&2
return 1
fi
}

# complete upto
#_upto () {
# # necessary locals for _init_completion
# local cur prev words cword
# _init_completion || return
#
# COMPREPLY+=( $( compgen -W "$( echo ${PWD//\// } )" -- $cur ) )
#}
## This complete scheme relies on bash_completion, and the subsequent
## _init_completion function to work.
#declare -f _init_completion > /dev/null && complete -F _upto upto