Please see below ...
On 22/02/2019 12:25, MacFH - C E Macfarlane wrote:
Please see below ...
On 21/02/2019 22:35, David Cantrell wrote:
On 2019-02-21 20:38, MacFH - C E Macfarlane wrote:
Currently, if you specify an --exclude option on the command line,
it overwrites any exclusions permanently specified in the options
file. Would it not make more sense that any exclusions specified on
the command line are *added* to those in the options file?
A common idiom in other tools is to have something like:
--exclude blah # exclude blah and *only* blah
--exclude +blah # exclude blah in addition to anything else
already excluded
Certainly, that would be ideal in giving us the best of both worlds.
However, there is a problem, perhaps two, with that particular syntax in
GiP. The first is that the exclude option is a Regular Expression, so
the + sign has a special meaning, and gives an RE error when used as
above. The possible second is that on Windows machines + is a parameter
separator for some commands, for example COPY. So we'd need a similar
syntax, but using a different prefix symbol. A tilde ~ might be a good
choice for this, as, AFAIK, it is inert in most operating systems; that
is to say, I'm not aware of any special meaning attached to it within
command lines.
As for actual perl code to merge the options, the merge itself is very
easy to do - my gip.pl script that I've linked before does it when
merging two option files from two different PCs. I suspect the major
difficulty, at least for me not knowing my way around the get_iplayer.pl
script, is ensuring that the command-line is parsed appropriately and
the parameter, including the special prefix character, is passed intact
to the section of code that deals with exclusions.
There are probably other parameters where such a syntax would be useful.
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