[gentoo-portage-dev] Downloading while compiling - FETCHCOMMAND inside.

[Roman Gaufman <hackeron@dsl.pipex.com>]

This fetchcommand will make sure portage doesn't download file simulatneously 
if you emerge -f package and emerge package in another terminal, it will make 
it wait for package to finish download.

I improved it a little. Now if download fails (e.g. file not found), it wont 
freeze portage and will carry on, enjoy:

FETCHCOMMAND="(
while [ -e \${DISTDIR}/`basename \${URI}`.lock ]; do
sleep 5; done &&
if [ ! -e \${DISTDIR}/`basename \${URI}` ]; then
/usr/bin/wget -t 5 --passive-ftp \${URI} -O \${DISTDIR}/`basename 
\${URI}`.lock &&
mv \${DISTDIR}/`basename \${URI}`.lock \${DISTDIR}/`basename \${URI}` ||
rm \${DISTDIR}/`basename \${URI}`.lock; fi
)"

Please help test. And suggest a solution to remove lock file if user ctrl+c 
out of the wget.

On Sunday 28 March 2004 00:21, Roman Gaufman wrote:
> I'm no coder, but I wrote a little fetchcommand for this based on
> suggestions by Sven:
>
> FETCHCOMMAND="(
> while [ -e \${DISTDIR}/`basename \${URI}`.lock ]; do
> sleep 5; done &&
> if [ ! -e \${DISTDIR}/`basename \${URI}` ]; then
> wget -t 5 --passive-ftp \${URI} -O \${DISTDIR}/`basename \${URI}`.lock &&
> mv \${DISTDIR}/`basename \${URI}`.lock \${DISTDIR}/`basename \${URI}`; fi
> )"
>
> suggestions, modifications are welcome.
>
> On Sunday 08 February 2004 00:59, Thomas Horsten wrote:
> > On Saturday 07 February 2004 22:07, Jeff Smelser wrote:
> > > On Saturday 07 February 2004 11:17 am, Sven Vermeulen wrote:
> > > > A quick 'n dirty hack in the FETCHCOMMAND should suffice. Something
> > > > along the lines of (pseudocode):
> > > >
> > > > FETCHCOMMAND="if exists \${DISTDIR}/`basename \${URL}.lck`; then
> > > > skip; else \ touch \${DISTDIR}/`basename \${URL}.lck`; \
> > > >               /usr/bin/wget ...; \
> > > >               rm \${DISTDIR}/`basename \${URL}.lck`; fi"
> > >
> > > I tried this, and got:
> > >[..] Errors
> >
> > Notice that Sven said it's pseudocode, just to describe the concept. It's
> > incomplete, and has an invalid syntax. For example, "if exists ..."
> > should be "if [ -e ...]" to be proper sh code.
> >
> > The real thing would be a bit more complex.
> >
> > // Thomas
> >
> >
> > --
> > gentoo-portage-dev@gentoo.org mailing list
>
> --
> gentoo-portage-dev@gentoo.org mailing list

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