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authorChris Dyer <cdyer@cab.ark.cs.cmu.edu>2012-10-02 00:19:43 -0400
committerChris Dyer <cdyer@cab.ark.cs.cmu.edu>2012-10-02 00:19:43 -0400
commit925087356b853e2099c1b60d8b757d7aa02121a9 (patch)
tree579925c5c9d3da51f43018a5c6d1c4dfbb72b089 /jam-files/boost-build/tools/symlink.jam
parentea79e535d69f6854d01c62e3752971fb6730d8e7 (diff)
cdec cleanup, remove bayesian stuff, parsing stuff
Diffstat (limited to 'jam-files/boost-build/tools/symlink.jam')
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diff --git a/jam-files/boost-build/tools/symlink.jam b/jam-files/boost-build/tools/symlink.jam
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-# Copyright 2003 Dave Abrahams
-# Copyright 2002, 2003 Rene Rivera
-# Copyright 2002, 2003, 2004, 2005 Vladimir Prus
-# Distributed under the Boost Software License, Version 1.0.
-# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
-
-# Defines the "symlink" special target. 'symlink' targets make symbolic links
-# to the sources.
-
-import targets modules path class os feature project property-set ;
-
-.count = 0 ;
-
-feature.feature symlink-location : project-relative build-relative : incidental ;
-
-# The class representing "symlink" targets.
-#
-class symlink-targets : basic-target
-{
- import numbers modules class property project path ;
-
- rule __init__ (
- project
- : targets *
- : sources *
- )
- {
- # Generate a fake name for now. Need unnamed targets eventually.
- local c = [ modules.peek symlink : .count ] ;
- modules.poke symlink : .count : [ numbers.increment $(c) ] ;
- local fake-name = symlink#$(c) ;
-
- basic-target.__init__ $(fake-name) : $(project) : $(sources) ;
-
- # Remember the targets to map the sources onto. Pad or truncate
- # to fit the sources given.
- self.targets = ;
- for local source in $(sources)
- {
- if $(targets)
- {
- self.targets += $(targets[1]) ;
- targets = $(targets[2-]) ;
- }
- else
- {
- self.targets += $(source) ;
- }
- }
-
- # The virtual targets corresponding to the given targets.
- self.virtual-targets = ;
- }
-
- rule construct ( name : source-targets * : property-set )
- {
- local i = 1 ;
- for local t in $(source-targets)
- {
- local s = $(self.targets[$(i)]) ;
- local a = [ class.new action $(t) : symlink.ln : $(property-set) ] ;
- local vt = [ class.new file-target $(s:D=)
- : [ $(t).type ] : $(self.project) : $(a) ] ;
-
- # Place the symlink in the directory relative to the project
- # location, instead of placing it in the build directory.
- if [ property.select <symlink-location> : [ $(property-set).raw ] ] = <symlink-location>project-relative
- {
- $(vt).set-path [ path.root $(s:D) [ $(self.project).get location ] ] ;
- }
-
- self.virtual-targets += $(vt) ;
- i = [ numbers.increment $(i) ] ;
- }
- return [ property-set.empty ] $(self.virtual-targets) ;
- }
-}
-
-# Creates a symbolic link from a set of targets to a set of sources.
-# The targets and sources map one to one. The symlinks generated are
-# limited to be the ones given as the sources. That is, the targets
-# are either padded or trimmed to equate to the sources. The padding
-# is done with the name of the corresponding source. For example::
-#
-# symlink : one two ;
-#
-# Is equal to::
-#
-# symlink one two : one two ;
-#
-# Names for symlink are relative to the project location. They cannot
-# include ".." path components.
-rule symlink (
- targets *
- : sources *
- )
-{
- local project = [ project.current ] ;
-
- return [ targets.main-target-alternative
- [ class.new symlink-targets $(project) : $(targets) :
- # Note: inline targets are not supported for symlink, intentionally,
- # since it's used to linking existing non-local targets.
- $(sources) ] ] ;
-}
-
-rule ln
-{
- local os ;
- if [ modules.peek : UNIX ] { os = UNIX ; }
- else { os ?= [ os.name ] ; }
- # Remember the path to make the link relative to where the symlink is located.
- local path-to-source = [ path.relative-to
- [ path.make [ on $(<) return $(LOCATE) ] ]
- [ path.make [ on $(>) return $(LOCATE) ] ] ] ;
- if $(path-to-source) = .
- {
- PATH_TO_SOURCE on $(<) = "" ;
- }
- else
- {
- PATH_TO_SOURCE on $(<) = [ path.native $(path-to-source) ] ;
- }
- ln-$(os) $(<) : $(>) ;
-}
-
-actions ln-UNIX
-{
- ln -f -s '$(>:D=:R=$(PATH_TO_SOURCE))' '$(<)'
-}
-
-# there is a way to do this; we fall back to a copy for now
-actions ln-NT
-{
- echo "NT symlinks not supported yet, making copy"
- del /f /q "$(<)" 2>nul >nul
- copy "$(>)" "$(<)" $(NULL_OUT)
-}
-
-IMPORT $(__name__) : symlink : : symlink ;