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RE: "insert" or "remove" a filename from locatedb
From: |
Gary Hassani |
Subject: |
RE: "insert" or "remove" a filename from locatedb |
Date: |
Tue, 30 Jul 2013 12:33:05 -0500 |
Thanks James, That sounds workable.
In the interest of efficiency do you have any suggestions regarding a program
that would directly read and update the locatedb? Something like:
1. Read the ‘old’ locatedb up to the filename that is to be ‘deleted’ while
writing out ‘new’ locatedb as you go.
2. Skip the filename to be ‘deleted’
3. Resume reading ‘old’ and writing ‘new’ locatedb to eof
Or would this break some compression or formatting protocol within locatedb?
On Tue, Jul 30, 2013 at 4:22 PM, Gary Hassani < <mailto:address@hidden>
address@hidden> wrote:
>
>
> Anyone of a way (program) that will 'insert' or 'delete' a file from a
> locatedb?
locate won't support in-place modification of its database. But you
can re-write it. For example, you can dump al the entries in the
database with
locate --null --regex ""
And then edit the resulting stream of (NUL-terminated) paths to omit
any items you want to delete. You then feed the stream to frcode to
generate a new database. See the updatedb shell script for details.
Adding files would be similar, though for that case you also need to ensure
that the file list is sorted.
James.
>
>
>
> In other words. given a locatedb and a filename is it possible to
> insert that filename into the locatedb?
In general there may not be a "the" locatedb since multiple databases are
supported.
>
>
>
> Similarly given a locatedb and a filename is it possible to remove
> that filename from the locatedb ?
>
> Thanks very much.
>
>
>