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Re: weird problem -- path interpretted/eval'd as numeric expression


From: John Kearney
Subject: Re: weird problem -- path interpretted/eval'd as numeric expression
Date: Fri, 29 Mar 2013 19:47:04 +0100
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130307 Thunderbird/17.0.4

Am 29.03.2013 18:53, schrieb Linda Walsh:
>
> Greg Wooledge wrote:
>> On Fri, Mar 29, 2013 at 12:41:46AM -0700, Linda Walsh wrote:
>>>     include was designed to search the path for functions that
>>> are relative paths.  While the normal sourcepath allows searching for
>>> filenames on the search path, I don't believe (please correct if I am wrong
>>> and this works now, as it would make life much simpler) that the PATH will
>>> be searched if you give it something like:
>>>
>>> source lib/Util/sourcefile.shh
>> Is that all you want?  Here:
>>
>> include() {
>>     local paths dir
>>     IFS=: read -ra paths <<< "$PATH"
>>     for dir in "address@hidden"; do
>>      if [[ -r $dir/$1 ]]; then
>>          source "$dir/$1"
>>          return
>>      fi
>>     done
>>     echo "could not find '$1' in PATH" >&2
>>     return 1
>> }
> ------
> It  also doesn't keep track of the previously sourced files so as to
> not 're-source' them if one of the files you 'source' also sources a file.
>
> It also allows one to optionally leave off the extension, but other than
> those additions... yeah... that's close...
>
> The idea is *mainly* to be able to read in functions and aliases..
>
> Vars expected to 'survive' for those funcs or aliases are exported...but
> that may not be enough to get them out of the local context...not sure.
>

Like this then ?

unset INCLUDED ; 
declare -A INCLUDED
find_file() {
    local dir 
    FOUND_FILE=""
    [ $((INCLUDED[${1%.sh}]+=1)) -eq 1 ] || return 1
    while IFS= read -rd ':' dir ;do
        #echo "trying : ${dir}/${1%.sh}.sh"
        [[ -r ${dir}/${1%.sh}.sh ]] || continue
        FOUND_FILE="${dir}/${1%.sh}.sh"
        echo "found : ${FOUND_FILE}"
    done <<< "${PATH}"
    [ -n "${FOUND_FILE:-}" ] || echo "could not find '$1' in PATH" >&2
    return ${FOUND_FILE+1}
} && echo 'find_file "${1:?Missing File Name }" && source "${FOUND_FILE}"' 
>/tmp/source_wrapper.sh && alias include=source\ "/tmp/source_wrapper.sh"


I actually tested this one and it seems to work ok.

 





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