On 2011-06-20 21:32, Nick Sabalausky wrote:
"Jacob Carlborg"<[email protected]> wrote in message
news:[email protected]...
On 2011-06-19 20:31, Nick Sabalausky wrote:
"Jacob Carlborg"<[email protected]> wrote in message
news:[email protected]...
On 2011-06-19 02:10, Adam D. Ruppe wrote:
http://arsdnet.net/dcode/build2.d
* Be fast. It loops dmd like my old build.d. (I can't find a better
way to do it. Even rdmd always runs dmd at least twice - check
its source!)
That shouldn't be necessary.
First run:
* Run the compiler once with the -deps flag to collect the dependencies
* Run the compiler again to compile everything
* Cache dependencies
Later runs:
* Run the compiler once with the -deps flag and compile everything
Using the -deps flag to *just* get the deps is very fast. Much faster
than a
full compile.
I understand that that would be faster when the dependencies have changed
but if they haven't then you just have to run the compiler once. Don't
know what would be best to do though.
BTW, to just get the dependencies, would that be with the -deps and -c
flags? Is the a better way? I mean if you just specify the -deps flag it
will do a full compilation. Seems to me that skipping linking (-c flag) is
a little too much as well for what's actually necessary. Would be good to
have a flag that does only what's absolutely necessary for tracking
dependencies.
What I meant was that doing a deps-only run is fast enough that doing it
every time shouldn't be a problem.
However, I am starting to wonder if RDMD's functionality should built into
DMD (ideally in a way that LDC/GDC wouldn't have to re-implement it
themselves). DDMD does take about a minute or so to compile, and while the
deps-only run is the faster part, it's not insignificant. But then, maybe
that's just due to some fixable inefficiency in DMD? There's very little
templates/ctfe involved.
I guess one could add the "-o-" (do not write object file) flag as well.
Don't know how much that would help though. I guess DMD does need to do
most of the process it normally does on the files due to static if,
mixins and other meta programming features.
--
/Jacob Carlborg
