feature request: "remote user is root, make remote owner is foo"

[Brian Cuttler]

On Wed, Aug 11, 2010 at 02:51:35PM -0700, travis+ml-rsync at subspacefield.org wrote:
> On Wed, Aug 11, 2010 at 01:32:42PM -0400, Brian Cuttler wrote:
> [Set u+s on directories, don't worry about owners]
> 
> It seems to work relatively well.  I get an error about not being
> able to chgrp the files owned by other users, and, in my case,
> the group ends up wrong because it's not supposed to be the same
> on both ends (www-data on destination, something else on source).
> 
> However, because of the former problem, at least the extant files
> stay readable until I can fix-up the group problem caused by the
> latter.  If I further chown them to www-data, then they don't get
> their gid hosed the second time around.
> 
> Not an ideal solution, but seems workable for the time being.
> 
> Aside: chown really needs a flag that says "set GID on directories but
> nothing else".  Right now I do this, which is the only right thing to
> do when filenames might contain anything, including whitespace or
> newlines:

We use a # find command to find directories and feed it to
the chown action. I'd have to think about/look-up the exact
syntax, but its a one line command and runs fairly quickly
since you can get the find to do the file selection (find directories)
rather than passing that work further down the pipe.



> setperms () {
>    local perms="$1"
>    local fileperm="$2"
>    local dirperm="$3"
>    local own="$4"
> 
>    local dir
> 
>    shift 4
> 
>    for dir in "$@"
>    do
>      if test -d "$dir"
>      then
>        find "$dir" -xdev -type d -print0 | xargs -0 --no-run-if-empty chmod "$perms","$dirperm" --
>        find "$dir" -xdev -type f -print0 | xargs -0 --no-run-if-empty chmod "$perms","$fileperm" --
>        chown -R "$own" "$dir"
>      fi
>    done
> }
> 
> setperms u=rwX,o=rX g=rwX g=rwxs owner:group /path/to/whatever
> -- 
> A Weapon of Mass Construction
> My emails do not have attachments; it's a digital signature that your mail
> program doesn't understand. | http://www.subspacefield.org/~travis/ 
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---
   Brian R Cuttler                 brian.cuttler at wadsworth.org
   Computer Systems Support        (v) 518 486-1697
   Wadsworth Center                (f) 518 473-6384
   NYS Department of Health        Help Desk 518 473-0773



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