Re: Using a filter in copy

[Russell Adams]

Ok, its quite simple really.

The following code works:

filters:

        { SigOk
        ExecProgram: "/usr/bin/gpg -v $(this).asc"
        Result: "Exec"
        }

Apparently in filter.c the results string uses "Exec" and not
"ExecProgram" by default. 

int FileObjectFilter(file,lstatptr,filterlist,context)

...

      if (fp->criteria[filterresult] == NULL)
         {
         fp->criteria[filterresult] = 
strdup("Type.Owner.Group.Mode.Ctime.Mtime.Atime.Size.ExecRegex.NameRegex.IsSymLinkTo.Exec");
         }

Funny that the only reference to ExecProgram was in globals.c.

Btw, I'm using 2.0.8-p1. ;]

Russell


On Wed, Oct 08, 2003 at 11:40:27AM -0500, Russell Adams wrote:
> I'm trying to filter a copy command to selectively copy files, using
> ExecProgram in the filter. 
> 
> This code verifies that the files to be copied have valid signatures,
> otherwise it shouldn't copy them.
> 
> I haven't had any luck with it so far, here's the excerpt from my
> code.
> 
> filters:
> 
>         { SigOk
>       #ExecProgram: "/bin/ls $(this)"
>         ExecProgram: "/usr/bin/gpg -v $(this).asc"
>       Result: "ExecProgram"
>         }
> 
> copy:
> 
>         $(workdir)/inputs/new/        dest=$(workdir)/inputs/
>                                                 include=cf*
>                                                 recurse=inf
>                                                 filter=SigOk
>                                                 mode=600
>                                                 owner=root
>                                                 group=root
> 
> My understanding is that the copy portion selects a group of files to
> copy, then iterates through that list of files in the filter to
> identify which files are ok to copy, and which files to skip.
> 
> Currently, the above skips every file.
> 
> So long as the command issued with ExecProgram returns 0, the current
> $(this) should be copied. Obviously I've tried ls in addition to my
> signature verification. Neither works. I've tried omitting Result as
> well, and putting in a Type: "reg" into the chain. Still no luck.
> 
> I've turned on debugging, and here's partial output from the
> filter. It looks like it returns 0 properly, and yet still fails to
> copy the file.
> 
> FileObjectFilter(/var/cfengine/inputs/new/update.conf)
> Applying filter SigOk
> AddMacroValue(update.this=/var/cfengine/inputs/new/update.conf)
> Added Macro at hash address 667 to object update with value
> this=/var/cfengine/inputs/new/update.conf
> CompareMacro(this,this=/var/cfengine/inputs/new/update.conf)=this
> CompareMacro(this,this=/var/cfengine/inputs/new/update.conf)=this
> Executing filter command [/usr/bin/gpg -v
> /var/cfengine/inputs/new/update.conf.asc]
> gpg: armor header: Version: GnuPG v1.2.3 (GNU/Linux)
> gpg: assuming signed data in `/var/cfengine/inputs/new/update.conf'
> gpg: Signature made Tue Oct  7 16:37:24 2003 CDT using DSA key ID
> 0FD6CB55
> gpg: Good signature from "Russell Adams <rladams@kelsey-seybold.com>"
> gpg: binary signature, digest algorithm SHA1
> Shell command returned 0
> Prepending Exec
> Filter result on /var/cfengine/inputs/new/update.conf was 0
> IgnoreFile(update.conf.asc)
> 
> I can't explain why the file was ignored when the command returned 0
> (successful), and I'd like to think its my syntax rather than a bug.
> 
> Any input would be appreciated.
> 
> Russell
> 
> 
> _______________________________________________
> Help-cfengine mailing list
> Help-cfengine@gnu.org
> http://mail.gnu.org/mailman/listinfo/help-cfengine