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revised docs for -j flag to `raco setup'

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Glad to see the docs, but revised for the following reasons:
  * define a meta-variable like `n' before using it
  * typeset meta-variables specially, usually as a Racket variable
  * 'processor-count' needed a `for-label' import for the hyperlink
  * use @exec{} for `make install', because it's a command rather
    than plain English
  * although `PLT_SETUP_OPTIONS' was introduced for `-j', it makes
    sense in general; revising the prose and moving to the end of
    the bullet makes that more clear (but good job including the
    index entry)
  * used `env' so that the example command line works for more shells
This commit is contained in:
Matthew Flatt 2010-07-26 15:03:31 -05:00
parent 1a84aecc42
commit bd0192d22d
1 changed files with 16 additions and 10 deletions
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26
collects/scribblings/raco/setup.scrbl
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@ -20,7 +20,8 @@
launcher/launcher launcher/launcher
compiler/sig compiler/sig
launcher/launcher-sig launcher/launcher-sig
racket/gui/base)) racket/gui/base
racket/future))
@(define-syntax-rule (local-module mod . body) @(define-syntax-rule (local-module mod . body)
(begin (begin
@ -72,14 +73,11 @@ The @exec{raco setup} command performs two main services:
controlled by @filepath{info.rkt}; see controlled by @filepath{info.rkt}; see
@elemref["clean"]{@racket[clean]} for more information. @elemref["clean"]{@racket[clean]} for more information.
The @DFlag{workers} (or @Flag{j}) flag to @exec{raco setup} causes it The @DFlag{workers} (or @Flag{j}) flag to @exec{raco setup} takes
to compile upto n jobs in parallel. The default is an argument @scheme[_n] to make compilation use up to @scheme[_n]
@racket[(processor-count)], which uses all the machine's processing cores. parallel processes. The default value of @scheme[_n] is
The number of workers to use during parallel build can also be set through @racket[(processor-count)], which typically uses all the machine's
the @as-index{@envvar{PLT_SETUP_OPTIONS}} environment variable when running processing cores.
make install.
@commandline{PLT_SETUP_OPTIONS="-j 1" make install.}
The @Flag{l} flag takes one or more collection names and restricts The @Flag{l} flag takes one or more collection names and restricts
@exec{raco setup}'s action to those collections. @exec{raco setup}'s action to those collections.
@ -92,7 +90,15 @@ The @exec{raco setup} command performs two main services:
@filepath{zo-compile.rkt} module in that collection, and extracting @filepath{zo-compile.rkt} module in that collection, and extracting
its @racket[zo-compile] export. The @racket[zo-compile] export its @racket[zo-compile] export. The @racket[zo-compile] export
should be a function like @racket[compile]; see the should be a function like @racket[compile]; see the
@filepath{errortrace} collection for an example.} @filepath{errortrace} collection for an example.
When building @exec{racket}, flags can be provided to @exec{raco
setup} as run by @exec{make install} by setting the
@as-index{@envvar{PLT_SETUP_OPTIONS}} environment variable. For
example, the following command line uses a single process to build
collections during an install:
@commandline{env PLT_SETUP_OPTIONS="-j 1" make install}}
@item{@bold{Unpacking @filepath{.plt} files:} A @item{@bold{Unpacking @filepath{.plt} files:} A
@filepath{.plt} file is a platform-independent distribution archive @filepath{.plt} file is a platform-independent distribution archive