Re: PATCH: relpath

[Jim Meyering]

Pádraig Brady wrote:
> On 12/12/2011 12:24 AM, Pádraig Brady wrote:
>> FYI I'm not forgetting about this.
>> This week I'll be travelling with work,
>> but I intend to tackle this early the following week.
>
> Sorry for the delay.
> Attached is the realpath implementation, which I think
> turned into a good cohesive set of functionality.
> It has this interface:
>
> Usage: src/realpath [OPTION] FILE...
> Print the resolved absolute file name;
> all but the last component must exist
>
>   -e, --canonicalize-existing  all components of the path must exist
>   -m, --canonicalize-missing   no components of the path need exist
>   -L, --logical                resolve `..' components before symlinks
>   -P, --physical               resolve symlinks as encountered (default)
>   -q, --quiet                  suppress most error messages
>       --relative-to=FILE       print the resolved path relative to FILE
>       --relative-base=FILE     print absolute paths unless paths below FILE
>   -s, --strip                  don't expand symlinks
>   -z, --zero                   separate output with NUL rather than newline
>
>       --help     display this help and exit
>       --version  output version information and exit
>
> I was going to add a --readlink option to call readlink(3),
> but that's a separate function really, and since readlink(1)
> is widely available, I thought it better to not duplicate?
>
> I was going to add a --common-prefix mode, to print
> the common prefix of all supplied paths.
> We can do this in future anyway.
>
> Note this patch required this small update to gnulib:
> http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=commit;h=8bcd0399

Nearly forgot.
Please include a gnulib submodule update in your change-set,
either as a prior commit or just squashed in.