On Wed, Jun 18, 2008 at 03:30:35PM -0700, Linus Torvalds wrote:
> It makes the code a bit easier to read, and in theory a bit faster too
> (no need to compare all the different "core.*" strings against non-core
> config options).
Maybe it would be easier still to read (and unmeasurably more efficient)
to actually do it like:
if (!prefixcmp(var, "core."))
return git_default_core_config(var+5, value);
...
int git_default_core_config(const char *var, const char *value)
{
if (!strcmp(var, "pager"))
...
> The config system really should get something of a complete overhaul,
> but in the absense of that, this at least improves on it a tiny bit.
I was curious a while ago and instrumented git_config to write the PID
to a tempfile each time it was called. Most git programs parse the
config files (.git/config, ~/.gitconfig, /etc/gitconfig) three times
each, with some doing it as many as five times.
Most of the config functions are simply "if this key, then set this
value". I wonder if it would be simpler to just load the whole thing at
once, using a table similar to parseopt.
Then we could do useful things like say "you specified core.foobar, but
there is no such variable." I know we can't know all values, since some
non-git programs put values in the config, but I don't think it's
unreasonable for us to claim all of core.*, especially if it helps us
catch simple configuration errors.
-Peff
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