v1.15.0

Pass desired features to Builder#produces?
Allow features to be passed in to Environment#register_builds.
Use features in Environment#get_build_fname to determine build file name.

.gitignore

@@ -1,18 +1,7 @@
-*.gem
+/.bundle/
-*.rbc
+/.yardoc/
-.bundle
+/_yardoc/
-.config
+/build_test_run/
-.yardoc
+/coverage/
-Gemfile.lock
+/doc/
-InstalledFiles
+/pkg/
-_yardoc
-coverage
-doc/
-lib/bundler/man
-pkg
-rdoc
-spec/reports
-test/tmp
-test/version_tmp
-tmp
-build_test_run

CHANGELOG.md

@@ -0,0 +1,190 @@
+## ChangeLog
+
+### v1.15.0
+
+- allow json 1.x or 2.x
+
+### v1.14.0
+
+#### New Features
+
+- #45 - Add Rscons::VarSet#values_at
+
+#### Fixes
+
+- #44 - Environment#print_builder_run_message should support string commands
+
+### v1.13.0
+
+#### New Features
+
+- #43 - Add ability to record side-effect file production
+
+### v1.12.0
+
+#### New Features
+
+- #40 - env.depends should imply env.build_after
+- #41 - be more colorful
+
+#### Fixes
+
+- #39 - wait for in-progress subcommands to complete on build failure
+- #42 - cloned Environments should inherit n_threads
+
+### v1.11.1
+
+#### Fixes
+
+- fix the circular build dependency detection logic
+
+### v1.11.0
+
+#### New Features
+
+- Change default Environment :clone option to :all to clone all attributes
+- #38 - raise error when circular dependencies are found
+- #34 - Allow overriding n_threads on a per-Environment level
+
+#### Fixes
+
+- #35 - env.build_after should expand paths
+- #36 - SHCFLAGS and SHCXXFLAGS should inherit non-SH flags by default
+- #37 - Fix non-blocking thread-wait if Rscons.n_threads is set to 0
+
+### v1.10.0
+
+#### New Features
+
+- #23 - add parallelization - builds are now parallelized by default
+- #31 - add LEXSUFFIX, YACCSUFFIX construction variables
+- #30 - place object files for absolute source paths under build_root
+- #28 - support redirecting standard output using the Command builder
+- Always use a build root and default it to "build"
+- Add builder features
+- #8 - add SharedObject and SharedLibrary builders
+
+#### Fixes
+
+- expand target and source paths before calling Builder#create_build_target
+- #29 - fix PROGSUFFIX handling
+- #32 - Pre-build hooks do not respect modified key values
+
+### v1.9.3
+
+- Environment#parse_flags should put -std=XXX flags in CCFLAGS, not CFLAGS
+
+### v1.9.2
+
+- allow phony targets in conjunction with build roots
+
+### v1.9.1
+
+- change *SUFFIX defaults to arrays
+- add various C++ file suffixes
+- use ${INCPREFIX} instead of hard-coded "-I" in Preprocess builder
+
+### v1.9.0
+
+#### New Features
+
+- #6 - add Install and Copy builders
+- #22 - allow overriding Command builder short description with CMD_DESC variable
+- #24 - add "rscons" executable
+- #25 - add support for phony targets given as Symbols instead of Strings
+- #26 - support registering multiple build targets with the same target name
+- #27 - add Directory builder
+
+#### Fixes
+
+- #20 - fix variable references that expand to arrays in build target sources
+- #21 - rework Preprocess builder to consider deep dependencies
+- fix Rscons.set_suffix to append the given suffix if the filename has none
+- remove ${CFLAGS} from default CPP_CMD
+
+### v1.8.1
+
+- fix Environment#dump when construction variables are symbols
+
+### v1.8.0
+
+- new Command builder to execute arbitrary user commands
+- new SimpleBuilder class
+  - create new builders quickly by passing a block to Environment#add_builder
+- improved YARD documentation
+- add Environment#dump to debug Environment construction variables
+
+### v1.7.0
+
+- allow build hooks to register new build targets
+- add post-build hooks (register with Environment#add_post_build_hook)
+- clear all build targets after processing an Environment
+- allow trailing slashes in arguments to Environment#build_dir
+
+### v1.6.1
+
+- add DEPFILESUFFIX construction variable to override dependency file suffix
+- fix Environment#depends to expand its arguments for construction variables
+
+### v1.6.0
+
+- support lambdas as construction variable values
+
+### v1.5.0
+
+- add "json" as a runtime dependency
+- update construction variables to match SCons more closely
+  - add CPPDEFPREFIX, INCPREFIX, CPPDEFINES, CCFLAGS, LIBDIRPREFIX, and LIBLINKPREFIX
+- add Environment#shell
+- add Environment#parse_flags, #parse_flags!, #merge_flags
+- unbuffer $stdout by default
+- add PROGSUFFIX construction variable (defaults to .exe on MinGW/Cygwin)
+- add Rscons::BuildTarget and Builder#create_build_target
+- update specs to RSpec 3.x and fix to run on MinGW/Cygwin/Linux
+- add YARD documentation to get to 100% coverage
+
+### v1.4.3
+
+- fix builders properly using construction variable overrides
+- expand nil construction variables to empty strings
+
+### v1.4.2
+
+- add Environment#expand_path
+- expand construction variable references in builder targets and sources before invoking builder
+
+### v1.4.1
+
+- fix invoking a builder with no sources while a build root defined
+
+### v1.4.0
+
+- add CFile builder
+- add Disassemble builder
+- add Preprocess builder
+- pass the Environment object to build hooks in the :env key of the build_op parameter
+- expand target/source paths beginning with "^/" to be relative to the Environment's build root
+- many performance improvements, including:
+  - use JSON instead of YAML for the cache to improve loading speed (Issue #7)
+  - store a hash of the build command instead of the full command contents in the cache
+  - implement copy-on-write semantics for construction variables when cloning Environments
+  - only load the cache once instead of on each Environment#process
+  - only write the cache when something has changed
+- fix Cache#mkdir_p to handle relative paths (Issue #5)
+- flush the cache to disk if a builder raises an exception (Issue #4)
+
+### v1.3.0
+
+- change Environment#execute() options parameter to accept the following options keys:
+  - :env to pass an environment Hash to Kernel#system
+  - :options to pass an options Hash to Kernel#system
+
+### v1.2.0
+
+- add :clone option to Environment#clone to control exactly which Environment attributes are cloned
+- allow nil to be passed in to Environment#build_root=
+
+### v1.1.0
+
+- Change Cache#up_to_date?() and #register_build() to accept a single target
+  file or an array of target file names

Gemfile.lock

@@ -0,0 +1,50 @@
+PATH
+  remote: .
+  specs:
+    rscons (1.15.0)
+      json (>= 1.8, < 3.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    diff-lcs (1.3)
+    docile (1.1.5)
+    json (2.1.0)
+    rake (12.0.0)
+    rdoc (5.1.0)
+    redcarpet (3.4.0)
+    rspec (3.6.0)
+      rspec-core (~> 3.6.0)
+      rspec-expectations (~> 3.6.0)
+      rspec-mocks (~> 3.6.0)
+    rspec-core (3.6.0)
+      rspec-support (~> 3.6.0)
+    rspec-expectations (3.6.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.6.0)
+    rspec-mocks (3.6.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.6.0)
+    rspec-support (3.6.0)
+    simplecov (0.15.0)
+      docile (~> 1.1.0)
+      json (>= 1.8, < 3)
+      simplecov-html (~> 0.10.0)
+    simplecov-html (0.10.2)
+    yard (0.9.9)
+
+PLATFORMS
+  ruby
+  x86-mingw32
+
+DEPENDENCIES
+  rake
+  rdoc
+  redcarpet
+  rscons!
+  rspec
+  simplecov
+  yard
+
+BUNDLED WITH
+   1.15.4

README.md

@@ -1,35 +1,36 @@
 # Rscons
 
-Software construction library inspired by SCons and implemented in Ruby
+Rscons is a software construction framework inspired by SCons and implemented
+in Ruby.
 
 [![Gem Version](https://badge.fury.io/rb/rscons.png)](http://badge.fury.io/rb/rscons)
 
 ## Installation
 
-Add this line to your application's Gemfile:
-
-    gem "rscons"
-
-And then execute:
-
-    $ bundle
-
-Or install it yourself as:
-
     $ gem install rscons
 
 ## Usage
 
-Rscons is a Ruby library.
+### Standalone
-It can be called from a standalone Ruby script or it can be used with rake and
+
-called from your Rakefile.
+Rscons provides a standalone executable ("rscons") with a command-line
+interface. The rscons executable will read a build script (by default named
+Rsconsfile or Rsconsfile.rb) and execute its contents.
+
+### With Rake
+
+Rscons can be used with rake as well. The same content that would be written
+in Rsconsfile can be placed in a Rakefile. It could be placed within a rake
+task block or split among multiple tasks.
+
+## Example Build Scripts
 
 ### Example: Building a C Program
 
 ```ruby
 Rscons::Environment.new do |env|
   env["CFLAGS"] << "-Wall"
-  env.Program("program", Dir["**/*.c"])
+  env.Program("program", Dir["src/**/*.c"])
 end
 ```
 
@@ -38,7 +39,7 @@ end
 ```ruby
 Rscons::Environment.new do |env|
   env["DFLAGS"] << "-Wall"
-  env.Program("program", Dir["**/*.d"])
+  env.Program("program", Dir["src/**/*.d"])
 end
 ```
 
@@ -154,6 +155,31 @@ Rscons::Environment.new do |env|
 end
 ```
 
+### Example: Custom Builder Using Environment#add_builder()
+
+The `add_builder` method of the `Rscons::Environment` class optionally allows
+you to define and register a builder by providing a name and action block. This
+can be useful if the builder you are trying to define is easily expressed as a
+short ruby procedure. When `add_builder` is called in this manner a new builder
+will be registered with the environment with the given name. When this builder
+is used it will call the provided block in order to build the target.
+
+```ruby
+Rscons::Environment.new do |env|
+  env.add_builder(:JsonToYaml) do |target, sources, cache, env, vars|
+    unless cache.up_to_date?(target, :JsonToYaml, sources, env)
+      cache.mkdir_p(File.dirname(target))
+      File.open(target, 'w') do |f|
+        f.write(YAML.dump(JSON.load(IO.read(sources.first))))
+      end
+      cache.register_build(target, :JsonToYaml, sources, env)
+    end
+    target
+  end
+  env.JsonToYaml('foo.yml','foo.json')
+end
+```
+
 ### Example: Using different compilation flags for some sources
 
 ```ruby
@@ -169,19 +195,6 @@ Rscons::Environment.new do |env|
 end
 ```
 
-Each build hook block will be invoked for every build operation, so the block
-should test the target or sources if its action should only apply to some
-subset of build targets or source files.
-
-The `build_op` parameter to the build hook block is a Hash describing the
-build operation with the following keys:
-* `:builder` - `Builder` instance in use
-* `:target` - `String` name of the target file
-* `:sources` - `Array` of the source files
-* `:vars` - `Rscons::VarSet` containing the construction variables to use
-The build hook can overwrite entries in `build_op[:vars]` to alter the
-construction variables in use for this specific build operation.
-
 ### Example: Creating a static library
 
 ```ruby
@@ -190,33 +203,44 @@ Rscons::Environment.new do |env|
 end
 ```
 
+### Example: Creating a C++ parser source from a Yacc/Bison input file
+
+```ruby
+Rscons::Environment.new do |env|
+  env.CFile("#{env.build_root}/parser.tab.cc", "parser.yy")
+end
+```
+
 ## Details
 
-### Default Builders
+### Environments
 
-Rscons ships with a number of default builders:
+The Environment is the main top-level object that Rscons operates with. An
+Environment must be created by the user in order to build anything. All build
+targets are registered within an Environment. In many cases only a single
+Environment will be needed, but more than one can be created (either from
+scratch or by cloning another existing Environment) if needed.
 
-* Library, which collects object files into a static library archive file
+An Environment consists of:
-* Object, which compiles source files to produce an object file
-* Program, which links object files to produce an executable
 
-If you want to create an Environment that does not contain any builders,
-you can use the `exclude_builders` key to the Environment constructor.
-
-### Managing Environments
-
-An Rscons::Environment consists of:
-
-* a collection of construction variables
 * a collection of builders
+* a collection of construction variables used by those builders
 * a mapping of build directories from source directories
-* a default build root to apply if no build directories are matched
+* a default build root to apply if no specific build directories are matched
-* a collection of targets to build
+* a collection of user-defined build targets
-* a collection of build hooks
+* a collection of user-defined build hooks
 
-When cloning an environment, the construction variables and builders are
+When cloning an environment, by default the construction variables, builders,
-cloned, but the new environment does not inherit any of the targets, build
+build hooks, build directories, and build root are cloned, but the new
-hooks, build directories, or the build root from the source environment.
+environment does not inherit any of the registered build targets.
+
+The set of environment attributes that are cloned is controllable via the
+`:clone` option to the `#clone` method.
+For example, `env.clone(clone: [:variables, :builders])` will include
+construction variables, and builders but not build hooks, build directories, or
+the build root.
+
+The set of pending targets is never cloned.
 
 Cloned environments contain "deep copies" of construction variables.
 For example, in:
@@ -230,27 +254,313 @@ cloned_env["CPPPATH"] << "three"
 
 `base_env["CPPPATH"]` will not include "three".
 
+### Builders
+
+Builders are the workhorses that Rscons uses to execute build operations.
+Each builder is specialized to perform a particular operation.
+
+Rscons ships with a number of builders:
+
+* Command, which executes a user-defined command to produce the target.
+* Copy, which is identical to Install.
+* CFile, which builds a C or C++ source file from a lex or yacc input file.
+* Disassemble, which disassembles an object file to a disassembly listing.
+* Install, which installs files or directories to a specified destination.
+* Library, which collects object files into a static library archive file.
+* Object, which compiles source files to produce an object file.
+* Preprocess, which invokes the C/C++ preprocessor on a source file.
+* Program, which links object files to produce an executable.
+* SharedLibrary, which links object files to produce a dynamically loadable
+  library.
+* SharedObject, which compiles source files to produce an object file, in a way
+  that is able to be used to create a shared library.
+
+If you want to create an Environment that does not contain any builders,
+you can use the `:exclude_builders` key to the Environment constructor.
+
+#### Command
+
+```ruby
+env.Command(target, sources, "CMD" => command)
+# Example
+env.Command("docs.html", "docs.md",
+    "CMD" => ["pandoc", "-fmarkdown", "-thtml", "-o${_TARGET}", "${_SOURCES}"],
+    "CMD_DESC" => "PANDOC")
+```
+
+The command builder executes a user-defined command in order to produce the
+desired target file based on the provided source files.
+
+#### CFile
+
+```ruby
+env.CFile(target, source)
+# Example
+env.CFile("parser.c", "parser.y")
+```
+
+The CFile builder will generate a C or C++ source file from a lex (.l, .ll)
+or yacc (.y, .yy) input file.
+
+#### Disassemble
+
+```ruby
+env.Disassemble(target, source)
+# Example
+env.Disassemble("module.dis", "module.o")
+```
+
+The Disassemble builder generates a disassembly listing using objdump from
+and object file.
+
+#### Install
+
+```ruby
+env.Install(destination, sources)
+# Example
+env.Install("dist/bin", "app.exe")
+env.Install("dist/share", "share")
+```
+
+#### Library
+
+```ruby
+env.Library(target, sources)
+# Example
+env.Library("lib.a", Dir["src/**/*.c"])
+```
+
+The Library builder creates a static library archive from the given source
+files.
+
+#### Object
+
+```ruby
+env.Object(target, sources)
+# Example
+env.Object("module.o", "module.c")
+```
+
+The Object builder compiles the given sources to an object file. Although it
+can be called explicitly, it is more commonly implicitly called by the Program
+builder.
+
+#### Preprocess
+
+```ruby
+env.Preprocess(target, source)
+# Example
+env.Preprocess("module-preprocessed.cc", "module.cc")
+```
+
+The Preprocess builder invokes either `${CC}` or `${CXX}` (depending on if the
+source contains an extension in `${CXXSUFFIX}` or not) and writes the
+preprocessed output to the target file.
+
+#### Program
+
+```ruby
+env.Program(target, sources)
+# Example
+env.Program("myprog", Dir["src/**/*.cc"])
+```
+
+The Program builder compiles and links the given sources to an executable file.
+Object files or source files can be given as `sources`. A platform-dependent
+program suffix will be appended to the target name if one is not specified.
+This can be controlled with the `PROGSUFFIX` construction variable.
+
+#### SharedLibrary
+
+```ruby
+env.SharedLibrary(target, sources)
+# Example
+env.SharedLibrary("mydll", Dir["src/**/*.cc"])
+```
+
+The SharedLibrary builder compiles and links the given sources to a dynamically
+loadable library. Object files or source files can be given as `sources`.
+A platform-dependent prefix and suffix will be appended to the target name if
+they are not specified by the user. These values can be controlled by
+overriding the `SHLIBPREFIX` and `SHLIBSUFFIX` construction variables.
+
+#### SharedObject
+
+```ruby
+env.SharedObject(target, sources)
+# Example
+env.SharedObject("lib_module.o", "lib_module.c")
+```
+
+The SharedObject builder compiles the given sources to an object file. Any
+compilation flags necessary to build the object file in a manner that allows it
+to be used to create a shared library are added. Although it can be called
+explicitly, it is more commonly implicitly called by the SharedLibrary builder.
+
+### Construction Variables
+
+Construction variables are used to define the toolset and any build options
+that Rscons will use to build a project. The default construction variable
+values are configured to build applications using gcc. However, all
+construction variables can be overridden by the user.
+
+| Name | Type | Description | Default |
+| --- | --- | --- | --- |
+| AR | String | Static library archiver executable | "ar" |
+| ARCMD | Array | Static library archiver command line | ["${AR}", "${ARFLAGS}", "${_TARGET}", "${_SOURCES}"] |
+| ARFLAGS | Array | Static library archiver flags | ["rcs"] |
+| AS | String | Assembler executable | "${CC}" |
+| ASCMD | Array | Assembler command line | ["${AS}", "-c", "-o", "${_TARGET}", "${ASDEPGEN}", "${INCPREFIX}${ASPPPATH}", "${ASPPFLAGS}", "${ASFLAGS}", "${_SOURCES}"] |
+| ASDEPGEN | Array | Assembly dependency generation flags | ["-MMD", "-MF", "${_DEPFILE}"] |
+| ASFLAGS | Array | Assembler flags | [] |
+| ASPPFLAGS | Array | Assembler preprocessor flags | ["${CPPFLAGS}"] |
+| ASPPPATH | Array | Assembler preprocessor path | ["${CPPPATH}"] |
+| ASSUFFIX | Array | Assembly file suffixes | [".S"] |
+| CC | String | C compiler executable | "gcc" |
+| CCCMD | Array | C compiler command line | ["${CC}", "-c", "-o", "${_TARGET}", "${CCDEPGEN}", "${INCPREFIX}${CPPPATH}", "${CPPFLAGS}", "${CFLAGS}", "${CCFLAGS}", "${_SOURCES}"] |
+| CCDEPGEN | Array | C compiler dependency generation flags | ["-MMD", "-MF", "${_DEPFILE}"] |
+| CCFLAGS | Array | Common flags for both C and C++ compiler | [] |
+| CFLAGS | Array | C compiler flags | [] |
+| CPP_CMD | Array | Preprocess command line | ["${_PREPROCESS_CC}", "-E", "${_PREPROCESS_DEPGEN}", "-o", "${_TARGET}", "${INCPREFIX}${CPPPATH}", "${CPPFLAGS}", "${_SOURCES}"] |
+| CPP_TARGET_SUFFIX | String | Suffix used for crt:preprocess target filename. | ".c" |
+| CPPDEFINES | Array | C preprocessor defines | [] |
+| CPPDEFPREFIX | String | Prefix used for C preprocessor to introduce a define | "-D" |
+| CPPFLAGS | Array | C preprocessor flags | ["${CPPDEFPREFIX}${CPPDEFINES}"] |
+| CPPPATH | Array | C preprocessor path | [] |
+| CSUFFIX | Array | C source file suffixes | [".c"] |
+| CXX | String | C++ compiler executable | "g++" |
+| CXXCMD | Array | C++ compiler command line | ["${CXX}", "-c", "-o", "${_TARGET}", "${CXXDEPGEN}", "${INCPREFIX}${CPPPATH}", "${CPPFLAGS}", "${CXXFLAGS}", "${CCFLAGS}", "${_SOURCES}"] |
+| CXXDEPGEN | Array | C++ compiler dependency generation flags | ["-MMD", "-MF", "${_DEPFILE}"] |
+| CXXFLAGS | Array | C++ compiler flags | [] |
+| CXXSUFFIX | Array | C++ source file suffixes | [".cc", ".cpp", ".cxx", ".C"] |
+| D_IMPORT_PATH | Array | D compiler import path | [] |
+| DC | String | D compiler executable | "gdc" |
+| DCCMD | Array | D compiler command line | ["${DC}", "-c", "-o", "${_TARGET}", "${INCPREFIX}${D_IMPORT_PATH}", "${DFLAGS}", "${_SOURCES}"] |
+| DEPFILESUFFIX | String | Dependency file suffix for Makefile-style dependency rules emitted by the compiler (used internally for temporary dependency files used to determine a source file's dependencies) | ".mf" |
+| DFLAGS | Array | D compiler flags | [] |
+| DISASM_CMD | Array | Disassemble command line | ["${OBJDUMP}", "${DISASM_FLAGS}", "${_SOURCES}"] |
+| DISASM_FLAGS | Array | Disassemble flags | ["--disassemble", "--source"] |
+| DSUFFIX | String/Array | Default D source file suffix | ".d" |
+| INCPREFIX | String | Prefix used for C preprocessor to add an include path | "-I" |
+| LD | String |  nil | Linker executable (automatically determined when nil) | nil (if nil, ${CC}, ${CXX}, or ${DC} is used depending on the sources being linked) |
+| LDCMD | Array | Link command line | ["${LD}", "-o", "${_TARGET}", "${LDFLAGS}", "${_SOURCES}", "${LIBDIRPREFIX}${LIBPATH}", "${LIBLINKPREFIX}${LIBS}"] |
+| LDFLAGS | Array | Linker flags | [] |
+| LEX | String | Lex executable | "flex" |
+| LEX_CMD | Array | Lex command line | ["${LEX}", "${LEX_FLAGS}", "-o", "${_TARGET}", "${_SOURCES}"] |
+| LEX_FLAGS | Array | Lex flags | [] |
+| LEXSUFFIX | Array | Lex input file suffixes | [".l", ".ll"] |
+| LIBDIRPREFIX | String | Prefix given to linker to add a library search path | "-L" |
+| LIBLINKPREFIX | String | Prefix given to linker to add a library to link with | "-l" |
+| LIBPATH | Array | Library load path | [] |
+| LIBS | Array | Libraries to link with | [] |
+| LIBSUFFIX | String/Array | Default static library file suffix | ".a" |
+| OBJDUMP | String | Objdump executable | "objdump" |
+| OBJSUFFIX | String/Array | Default object file suffix | ".o" |
+| PROGSUFFIX | String | Default program suffix. | Windows: ".exe", POSIX: "" |
+| SHCC | String | Shared object C compiler | "${CC}" |
+| SHCCCMD | Array | Shared object C compiler command line | ["${SHCC}", "-c", "-o", "${_TARGET}", "${CCDEPGEN}", "${INCPREFIX}${CPPPATH}", "${CPPFLAGS}", "${SHCFLAGS}", "${SHCCFLAGS}", "${_SOURCES}"] |
+| SHCCFLAGS | Array | Shared object C and C++ compiler flags | Windows: ["${CCFLAGS}"], POSIX: ["${CCFLAGS}", -fPIC"] |
+| SHCFLAGS | Array | Shared object C compiler flags | ["${CFLAGS}"] |
+| SHCXX | String | Shared object C++ compiler | "${CXX}" |
+| SHCXXCMD | Array | Shared object C++ compiler command line | ["${SHCXX}", "-c", "-o", "${_TARGET}", "${CXXDEPGEN}", "${INCPREFIX}${CPPPATH}", "${CPPFLAGS}", "${SHCXXFLAGS}", "${SHCCFLAGS}", "${_SOURCES}"] |
+| SHCXXFLAGS | Array | Shared object C++ compiler flags | ["${CXXFLAGS}"] |
+| SHDC | String | Shared object D compiler | "gdc" |
+| SHDCCMD | Array | Shared object D compiler command line | ["${SHDC}", "-c", "-o", "${_TARGET}", "${INCPREFIX}${D_IMPORT_PATH}", "${SHDFLAGS}", "${_SOURCES}"] |
+| SHDFLAGS | Array | Shared object D compiler flags | Windows: ["${DFLAGS}"], POSIX: ["${DFLAGS}", "-fPIC"] |
+| SHLD | String | Shared library linker | nil (if nil, ${SHCC}, ${SHCXX}, or ${SHDC} is used depending on the sources being linked) |
+| SHLDCMD | Array | Shared library linker command line | ["${SHLD}", "-o", "${_TARGET}", "${SHLDFLAGS}", "${_SOURCES}", "${SHLIBDIRPREFIX}${LIBPATH}", "${SHLIBLINKPREFIX}${LIBS}"] |
+| SHLDFLAGS | Array | Shared library linker flags | ["${LDFLAGS}", "-shared"] |
+| SHLIBDIRPREFIX | String | Prefix given to shared library linker to add a library search path | "-L" |
+| SHLIBLINKPREFIX | String | Prefix given to shared library linker to add a library to link with | "-l" |
+| SHLIBPREFIX | String | Shared library file name prefix | Windows: "", POSIX: "lib" |
+| SHLIBSUFFIX | String | Shared library file name suffix | Windows: ".dll", POSIX: ".so" |
+| SIZE | String | Size executable. | "size" |
+| YACC | String | Yacc executable | "bison" |
+| YACC_CMD | Array | Yacc command line | ["${YACC}", "${YACC_FLAGS}", "-o", "${_TARGET}", "${_SOURCES}"] |
+| YACC_FLAGS | Array | Yacc flags | ["-d"] |
+| YACCSUFFIX | Array | Yacc input file suffixes | [".y", ".yy"] |
+
+### Build Hooks
+
+Environments can have build hooks which are added with `env.add_build_hook()`.
+Build hooks are invoked immediately before a builder executes.
+Build hooks can modify the construction variables in use for the build
+operation.
+They can also register new build targets.
+
+Environments can also have post-build hooks added with `env.add_post_build_hook()`.
+Post-build hooks are only invoked if the build operation was a success.
+Post-build hooks can invoke commands using the newly-built files, or register
+new build targets.
+
+Each build hook block will be invoked for every build operation, so the block
+should test the target or sources if its action should only apply to some
+subset of build targets or source files.
+
+Example build hook:
+
+```ruby
+Rscons::Environment.new do |env|
+  # Build third party sources without -Wall
+  env.add_build_hook do |build_op|
+    if build_op[:builder].name == "Object" and
+      build_op[:sources].first =~ %r{src/third-party}
+      build_op[:vars]["CFLAGS"] -= ["-Wall"]
+    end
+  end
+end
+```
+
+The `build_op` parameter to the build hook block is a Hash describing the
+build operation with the following keys:
+* `:builder` - `Builder` instance in use
+* `:env` - `Environment` calling the build hook; note that this may be
+  different from the Environment that the build hook was added to in the case
+  that the original Environment was cloned with build hooks!
+* `:target` - `String` name of the target file
+* `:sources` - `Array` of the source files
+* `:vars` - `Rscons::VarSet` containing the construction variables to use.
+  The build hook can overwrite entries in `build_op[:vars]` to alter the
+  construction variables in use for this specific build operation.
+
+### Phony Targets
+
+A build target name given as a Symbol instead of a String is interpreted as a
+"phony" target.
+Phony targets operate similarly to normal build targets, except that a file is
+not expected to be produced by the builder.
+Phony targets will still be "rebuilt" if any source or the command is out of
+date.
+
+### Explicit Dependencies
+
+A target can be marked as depending on another file that Rscons would not
+otherwise know about via the `Environment#depends` function. For example,
+to force the linker to re-link a Program output when a linker script changes:
+
+```ruby
+Rscons::Environment.new do |env|
+  env.Program("a.out", "foo.c", "LDFLAGS" => %w[-T linker_script.ld])
+  env.depends("a.out", "linker_script.ld")
+end
+```
+
+You can pass multiple dependency files to `Environment#depends`:
+
+```ruby
+env.depends("my_app", "config/link.ld", "README.txt", *Dir.glob("assets/**/*"))
+```
+
 ### Construction Variable Naming
 
 * uppercase strings - the default construction variables that Rscons uses
-* lowercase symbols - Rscons options
+* strings beginning with "_" - set and used internally by builders
-* lowercase strings - reserved as user-defined construction variables
+* symbols, lowercase strings - reserved as user-defined construction variables
 
 ### API documentation
 
 Documentation for the complete Rscons API can be found at
-http://rubydoc.info/github/holtrop/rscons/frames.
+http://www.rubydoc.info/github/holtrop/rscons/master.
-
-## Release Notes
-
-### v1.2.0
-- add :clone option to Environment#clone to control exactly which Environment attributes are cloned
-- allow nil to be passed in to Environment#build_root=
-
-### v1.1.0
-
-- Change Cache#up_to_date?() and #register_build() to accept a single target
-  file or an array of target file names
 
 ## Contributing
 

Rakefile.rb

@@ -8,19 +8,20 @@ end
 require "bundler/gem_tasks"
 require "rspec/core/rake_task"
 require "yard"
+require "rake/clean"
 
-RSpec::Core::RakeTask.new(:spec)
+CLEAN.include %w[build_test_run .yardoc doc coverage]
+CLOBBER.include %w[pkg]
+
+RSpec::Core::RakeTask.new(:spec, :example_string) do |task, args|
+  if args.example_string
+    ENV["partial_specs"] = "1"
+    task.rspec_opts = %W[-e "#{args.example_string}" -f documentation]
+  end
+end
 
 YARD::Rake::YardocTask.new do |yard|
   yard.files = ['lib/**/*.rb']
 end
 
 task :default => :spec
-
-task :clean do
-  FileUtils.rm_rf(["build_test_run", "doc", "coverage"])
-end
-
-task :clobber => :clean do
-  FileUtils.rm_rf(["pkg"])
-end

bin/rscons

@@ -0,0 +1,3 @@
+require "rscons/cli"
+
+Rscons::Cli.run(ARGV)

build_tests/build_dir/Rsconsfile

@@ -0,0 +1,5 @@
+Rscons::Environment.new do |env|
+  env.append('CPPPATH' => Dir['src/**/*/'].sort)
+  env.build_dir(%r{^src/([^/]+)/}, 'build_\\1/')
+  env.Program('build_dir.exe', Dir['src/**/*.c'])
+end

build_tests/build_dir/backward_compatible_build_hooks.rb

@@ -0,0 +1,22 @@
+class MyObject < Rscons::Builder
+  def run(target, sources, cache, env, vars)
+    env.run_builder(env.builders["Object"], target, sources, cache, vars)
+  end
+end
+
+Rscons::Environment.new(echo: :command) do |env|
+  env.add_builder(MyObject.new)
+  env.append('CPPPATH' => Dir['src/**/*/'].sort)
+  env.add_build_hook do |build_op|
+    if build_op[:builder].name == "MyObject" && build_op[:sources].first =~ %r{one\.c}
+      build_op[:vars]["CFLAGS"] << "-O1"
+      build_op[:sources] = ['src/two/two.c']
+    elsif build_op[:builder].name == "MyObject" && build_op[:target] =~ %r{two\.o}
+      new_vars = build_op[:vars].clone
+      new_vars["CFLAGS"] << "-O2"
+      build_op[:vars] = new_vars
+    end
+  end
+  env.MyObject('one.o', 'src/one/one.c')
+  env.MyObject('two.o', 'src/two/two.c')
+end

build_tests/build_dir/build_dirs_and_root.rb

@@ -0,0 +1,6 @@
+env = Rscons::Environment.new do |env|
+  env.append('CPPPATH' => Dir['src/**/*/'].sort)
+  env.build_dir("src", "build")
+  env.build_root = "build_root"
+  env.Program('build_dir.exe', Dir['src/**/*.c'])
+end

build_tests/build_dir/build_hooks.rb

@@ -0,0 +1,12 @@
+Rscons::Environment.new(echo: :command) do |env|
+  env.append('CPPPATH' => Dir['src/**/*/'].sort)
+  env.build_dir(%r{^src/([^/]+)/}, 'build_\\1/')
+  env.add_build_hook do |build_op|
+    if build_op[:target] =~ %r{build_one/.*\.o}
+      build_op[:vars]["CFLAGS"] << "-O1"
+    elsif build_op[:target] =~ %r{build_two/.*\.o}
+      build_op[:vars]["CFLAGS"] << "-O2"
+    end
+  end
+  env.Program('build_hook.exe', Dir['src/**/*.c'].sort)
+end

build_tests/build_dir/carat.rb

@@ -0,0 +1,8 @@
+Rscons::Environment.new(echo: :command) do |env|
+  env.append('CPPPATH' => Dir['src/**/*/'].sort)
+  env.build_root = "build_root"
+  FileUtils.mkdir_p(env.build_root)
+  FileUtils.mv("src/one/one.c", "build_root")
+  env.Object("^/one.o", "^/one.c")
+  env.Program("build_dir.exe", Dir['src/**/*.c'] + ["^/one.o"])
+end

build_tests/build_dir/copy.rb

@@ -0,0 +1,3 @@
+Rscons::Environment.new do |env|
+  env.Copy("inst.exe", "copy.rb")
+end

build_tests/build_dir/csuffix.rb

@@ -0,0 +1,6 @@
+Rscons::Environment.new do |env|
+  env["CSUFFIX"] = %w[.yargh .c]
+  env["CFLAGS"] += %w[-x c]
+  env["CPPPATH"] += Dir["src/**/"]
+  env.Program("build_dir.exe", Dir["src/**/*.{c,yargh}"])
+end

build_tests/build_dir/echo_command_ruby_builder.rb

@@ -0,0 +1,5 @@
+Rscons::Environment.new do |env|
+  env.echo = :command
+  env.Install("inst.exe", "install.rb")
+end
+

build_tests/build_dir/echo_command_string.rb

@@ -0,0 +1,13 @@
+class MyBuilder < Rscons::Builder
+  def run(options)
+    env, target = options.values_at(:env, :target)
+    env.print_builder_run_message("MyBuilder #{target}", "MyBuilder #{target} command")
+    target
+  end
+end
+
+Rscons::Environment.new do |env|
+  env.echo = :command
+  env.add_builder(MyBuilder.new)
+  env.MyBuilder("foo")
+end

build_tests/build_dir/install.rb

@@ -0,0 +1,3 @@
+Rscons::Environment.new do |env|
+  env.Install("inst.exe", "install.rb")
+end

build_tests/build_dir/install_directory.rb

@@ -0,0 +1,9 @@
+Rscons::Environment.new do |env|
+  env.Directory("inst")
+  env.Install("inst", "install_directory.rb")
+
+  env.Install("noexist/src", "src")
+
+  env.Directory("exist/src")
+  env.Install("exist/src", "src")
+end

build_tests/build_dir/multiple_targets_same_name.rb

@@ -0,0 +1,5 @@
+Rscons::Environment.new do |env|
+  env["CPPPATH"] << "src/two"
+  env.Object("one.o", "src/one/one.c")
+  env.Object("one.o", "src/two/two.c")
+end

build_tests/build_dir/no_match_build_dir.rb

@@ -0,0 +1,6 @@
+Rscons::Environment.new do |env|
+  env.append('CPPPATH' => Dir['src/**/*/'].sort)
+  env.build_dir("src2", "build")
+  env.build_root = "build_root"
+  env.Program('build_dir.exe', Dir['src/**/*.c'])
+end

build_tests/build_dir/post_build_hook_expansion.rb

@@ -0,0 +1,10 @@
+Rscons::Environment.new do |env|
+  env["CPPPATH"] << "src/two"
+  env.Object("one.o", "src/one/one.c")
+  env.add_post_build_hook do |build_op|
+    if build_op[:target] == "one.o"
+      env["MODULE"] = "two"
+      env.Object("${MODULE}.o", "src/${MODULE}/${MODULE}.c")
+    end
+  end
+end

build_tests/build_dir/slashes.rb

@@ -0,0 +1,6 @@
+Rscons::Environment.new do |env|
+  env.append("CPPPATH" => Dir["src/**/*/"].sort)
+  env.build_dir("src/one/", "build_one/")
+  env.build_dir("src/two", "build_two")
+  env.Program("build_dir.exe", Dir["src/**/*.c"])
+end

build_tests/cfile/Rsconsfile

@@ -0,0 +1,4 @@
+Rscons::Environment.new do |env|
+  env.CFile("lexer.c", "lexer.l")
+  env.CFile("parser.c", "parser.y")
+end

build_tests/cfile/error_unknown_extension.rb

@@ -0,0 +1,3 @@
+Rscons::Environment.new do |env|
+  env.CFile("file.c", "foo.bar")
+end

build_tests/cfile/lexer.l

@@ -0,0 +1,4 @@
+%{
+%}
+
+%%

build_tests/cfile/parser.y

@@ -0,0 +1,9 @@
+%{
+%}
+
+%token ONE
+
+%%
+
+one: ONE
+   ;

build_tests/clone_env/Rsconsfile

@@ -0,0 +1,12 @@
+debug = Rscons::Environment.new(echo: :command) do |env|
+  env.build_dir('src', 'debug')
+  env['CFLAGS'] = '-O2'
+  env['CPPFLAGS'] = '-DSTRING="Debug Version"'
+  env.Program('program-debug.exe', Dir['src/*.c'])
+end
+
+release = debug.clone do |env|
+  env["CPPFLAGS"] = '-DSTRING="Release Version"'
+  env.build_dir('src', 'release')
+  env.Program('program-release.exe', Dir['src/*.c'])
+end

build_tests/clone_env/clone_all.rb

@@ -0,0 +1,15 @@
+env1 = Rscons::Environment.new(echo: :command) do |env|
+  env.build_dir('src', 'build')
+  env['CFLAGS'] = '-O2'
+  env.add_build_hook do |build_op|
+    build_op[:vars]['CPPFLAGS'] = '-DSTRING="Hello"'
+  end
+  env.add_post_build_hook do |build_op|
+    $stdout.puts "post #{build_op[:target]}"
+  end
+  env.Program('program.exe', Dir['src/*.c'])
+end
+
+env2 = env1.clone do |env|
+  env.Program('program2.exe', Dir['src/*.c'])
+end

build_tests/custom_builder/Rsconsfile

@@ -0,0 +1,16 @@
+class MySource < Rscons::Builder
+  def run(target, sources, cache, env, vars)
+    File.open(target, 'w') do |fh|
+      fh.puts <<EOF
+#define THE_VALUE 5678
+EOF
+    end
+    target
+  end
+end
+
+Rscons::Environment.new do |env|
+  env.add_builder(MySource.new)
+  env.MySource('inc.h', [])
+  env.Program('program.exe', Dir['*.c'])
+end

build_tests/custom_builder/build_after.rb

@@ -0,0 +1,10 @@
+Rscons::Environment.new do |env|
+  env.Command("inc.c",
+              [],
+              "CMD" => %w[ruby gen.rb ${_TARGET}],
+              "CMD_DESC" => "Generating")
+  env["build_root"] = env.build_root
+  env["inc_c"] = "inc.c"
+  env.build_after("${build_root}/program.o", "${inc_c}")
+  env.Program("program.exe", ["program.c", "inc.c"])
+end

build_tests/custom_builder/cvar_expansion.rb

@@ -0,0 +1,18 @@
+class MySource < Rscons::Builder
+  def run(target, sources, cache, env, vars)
+    File.open(target, 'w') do |fh|
+      fh.puts <<EOF
+#define THE_VALUE 678
+EOF
+    end
+    target
+  end
+end
+
+env = Rscons::Environment.new do |env|
+  env["hdr"] = "inc.h"
+  env["src"] = "program.c"
+  env.add_builder(MySource.new)
+  env.MySource('${hdr}')
+  env.Program('program.exe', "${src}")
+end

build_tests/custom_builder/cvar_lambda.rb

@@ -0,0 +1,28 @@
+class MySource < Rscons::Builder
+  def run(target, sources, cache, env, vars)
+    File.open(target, 'w') do |fh|
+      fh.puts <<EOF
+#define THE_VALUE #{env.expand_varref("${the_value}")}
+EOF
+    end
+    target
+  end
+end
+
+e1 = Rscons::Environment.new do |env|
+  env.add_builder(MySource.new)
+  env["one"] = "5"
+  env[:cfg] = {val: "9"}
+  env["two"] = lambda do |args|
+    args[:env][:cfg][:val]
+  end
+  env["the_value"] = lambda do |args|
+    "${one}${two}78"
+  end
+end
+
+e1.clone do |env|
+  env[:cfg][:val] = "6"
+  env.MySource('inc.h', [])
+  env.Program('program.exe', Dir['*.c'])
+end

build_tests/custom_builder/gen.rb

@@ -0,0 +1,9 @@
+sleep 1.0
+c_file = ARGV.first
+h_file = File.basename(c_file, ".c") + ".h"
+File.open(c_file, "w") do |fh|
+  fh.puts
+end
+File.open(h_file, "w") do |fh|
+  fh.puts("#define THE_VALUE 191")
+end

build_tests/custom_builder/multiple_targets.rb

@@ -0,0 +1,19 @@
+class CHGen < Rscons::Builder
+  def run(target, sources, cache, env, vars)
+    c_fname = target
+    h_fname = target.sub(/\.c$/, ".h")
+    unless cache.up_to_date?([c_fname, h_fname], "", sources, env)
+      puts "CHGen #{c_fname}"
+      File.open(c_fname, "w") {|fh| fh.puts "int THE_VALUE = 42;"}
+      File.open(h_fname, "w") {|fh| fh.puts "extern int THE_VALUE;"}
+      cache.register_build([c_fname, h_fname], "", sources, env)
+    end
+    target
+  end
+end
+
+Rscons::Environment.new do |env|
+  env.add_builder(CHGen.new)
+  env.CHGen("inc.c", ["program.c"])
+  env.Program("program.exe", %w[program.c inc.c])
+end

build_tests/custom_builder/produces.rb

@@ -0,0 +1,14 @@
+Rscons::Environment.new do |env|
+  env["build_root"] = env.build_root
+  env["inc_h"] = "inc.h"
+
+  env.Copy("copy_inc.h", "${inc_h}")
+  env.depends("${build_root}/program.o", "${inc_h}")
+  env.Program("program.exe", ["program.c", "inc.c"])
+
+  env.Command("inc.c",
+              [],
+              "CMD" => %w[ruby gen.rb ${_TARGET}],
+              "CMD_DESC" => "Generating")
+  env.produces("inc.c", "inc.h")
+end

build_tests/d/Rsconsfile

@@ -0,0 +1,3 @@
+Rscons::Environment.new(echo: :command) do |env|
+  env.Program("hello-d.exe", Dir["*.d"])
+end

build_tests/header/Rsconsfile

@@ -0,0 +1,3 @@
+Rscons::Environment.new do |env|
+  env.Program('header.exe', Dir['*.c'])
+end

build_tests/json_to_yaml/Rsconsfile

@@ -0,0 +1,15 @@
+Rscons::Environment.new do |env|
+  require 'json'
+  require 'yaml'
+  env.add_builder(:JsonToYaml) do |target, sources, cache, env, vars|
+    unless cache.up_to_date?(target, :JsonToYaml, sources, env)
+      cache.mkdir_p(File.dirname(target))
+      File.open(target, 'w') do |f|
+        f.write(YAML.dump(JSON.load(IO.read(sources.first))))
+      end
+      cache.register_build(target, :JsonToYaml, sources, env)
+    end
+    target
+  end
+  env.JsonToYaml('foo.yml', 'foo.json')
+end

build_tests/json_to_yaml/foo.json

@@ -0,0 +1 @@
+{ "key": "value" }

build_tests/library/Rsconsfile

@@ -0,0 +1,4 @@
+Rscons::Environment.new(echo: :command) do |env|
+  env.Program('library.exe', ['lib.a', 'three.c'])
+  env.Library("lib.a", ['one.c', 'two.c'], 'CPPFLAGS' => ['-Dmake_lib'])
+end

build_tests/library/override_arcmd.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new(echo: :command) do |env|
+  env["ARCMD"] = %w[ar rcf ${_TARGET} ${_SOURCES}]
+  env.Library("lib.a", Dir["*.c"].sort)
+end

build_tests/preprocess/Rsconsfile

@@ -0,0 +1,3 @@
+Rscons::Environment.new do |env|
+  env.Preprocess("pp", "foo.h")
+end

build_tests/preprocess/bar.h

@@ -0,0 +1 @@
+#define BAR xyz42abc

build_tests/preprocess/foo.h

@@ -0,0 +1,2 @@
+#include "bar.h"
+BAR

build_tests/shared_library/Rsconsfile

@@ -0,0 +1,11 @@
+Rscons::Environment.new do |env|
+  env["CPPPATH"] << "src/lib"
+  libmine = env.SharedLibrary("mine", Dir["src/lib/*.c"])
+  env.Program("test-shared.exe",
+              Dir["src/*.c"],
+              "LIBPATH" => %w[.],
+              "LIBS" => %w[mine])
+  env.build_after("test-shared.exe", libmine.to_s)
+  env.Program("test-static.exe",
+              Dir["src/**/*.c"])
+end

build_tests/shared_library/error_unknown_suffix.rb

@@ -0,0 +1,6 @@
+Rscons::Environment.new do |env|
+  File.open("foo.xyz", "wb") do |fh|
+    fh.puts("hi")
+  end
+  env.SharedObject("foo.o", "foo.xyz")
+end

build_tests/shared_library/shared_library_cxx.rb

@@ -0,0 +1,11 @@
+Rscons::Environment.new do |env|
+  env["CPPPATH"] << "src/lib"
+  libmine = env.SharedLibrary("mine", Dir["src/lib/*.cc"])
+  env.Program("test-shared.exe",
+              Dir["src/*.cc"],
+              "LIBPATH" => %w[.],
+              "LIBS" => %w[mine])
+  env.build_after("test-shared.exe", libmine.to_s)
+  env.Program("test-static.exe",
+              Dir["src/**/*.cc"])
+end

build_tests/shared_library/shared_library_d.rb

@@ -0,0 +1,9 @@
+Rscons::Environment.new do |env|
+  env["CPPPATH"] << "src/lib"
+  libmine = env.SharedLibrary("mine", Dir["src/lib/*.d"])
+  env.Program("test-shared.exe",
+              Dir["src/*.c"],
+              "LIBPATH" => %w[.],
+              "LIBS" => %w[mine])
+  env.build_after("test-shared.exe", libmine.to_s)
+end

build_tests/shared_library/shared_library_set_shld.rb

@@ -0,0 +1,12 @@
+Rscons::Environment.new do |env|
+  env["CPPPATH"] << "src/lib"
+  env["SHLD"] = "gcc"
+  libmine = env.SharedLibrary("mine", Dir["src/lib/*.c"])
+  env.Program("test-shared.exe",
+              Dir["src/*.c"],
+              "LIBPATH" => %w[.],
+              "LIBS" => %w[mine])
+  env.build_after("test-shared.exe", libmine.to_s)
+  env.Program("test-static.exe",
+              Dir["src/**/*.c"])
+end

build_tests/shared_library/src/lib/one.c

@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+void one(void)
+{
+    printf("Hi from one()\n");
+}

build_tests/shared_library/src/lib/one.cc

@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+void one(void)
+{
+    printf("Hi from one()\n");
+}

build_tests/shared_library/src/lib/one.d

@@ -0,0 +1,6 @@
+import core.stdc.stdio;
+
+extern (C) void one()
+{
+    printf("Hi from one()\n");
+}

build_tests/shared_library/src/lib/one.h

@@ -0,0 +1,5 @@
+#ifndef ONE_H
+
+void one(void);
+
+#endif

build_tests/shared_library/src/lib/two.c

@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+void two(void)
+{
+    printf("Hi from two()\n");
+}

build_tests/shared_library/src/lib/two.cc

@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+void two(void)
+{
+    printf("Hi from two()\n");
+}

build_tests/shared_library/src/lib/two.d

@@ -0,0 +1,6 @@
+import core.stdc.stdio;
+
+extern (C) void two()
+{
+    printf("Hi from two()\n");
+}

build_tests/shared_library/src/lib/two.h

@@ -0,0 +1,5 @@
+#ifndef TWO_H
+
+void two(void);
+
+#endif

build_tests/shared_library/src/main.c

@@ -0,0 +1,8 @@
+#include "one.h"
+#include "two.h"
+
+int main(int argc, char * argv[])
+{
+    one();
+    two();
+}

build_tests/shared_library/src/main.cc

@@ -0,0 +1,8 @@
+#include "one.h"
+#include "two.h"
+
+int main(int argc, char * argv[])
+{
+    one();
+    two();
+}

build_tests/simple/Rsconsfile

@@ -0,0 +1,3 @@
+Rscons::Environment.new do |env|
+  env.Program('simple.exe', Dir['*.c'])
+end

build_tests/simple/absolute_source_path.rb

@@ -0,0 +1,14 @@
+Rscons::Environment.new do |env|
+  env.build_root = "build"
+  tempdir = ENV["TEMP"] || ENV["TMP"] || "/tmp"
+  source_file = File.join(tempdir, "abs.c")
+  File.open(source_file, "w") do |fh|
+    fh.puts(<<-EOF)
+    int main()
+    {
+      return 29;
+    }
+    EOF
+  end
+  env.Program("abs.exe", source_file)
+end

build_tests/simple/bc_produces.rb

@@ -0,0 +1,28 @@
+class MyObject < Rscons::Builder
+  def produces?(target, source, env)
+    target.end_with?(".o") and source.end_with?(".xyz")
+  end
+
+  def run(target, sources, cache, env, vars)
+    cflags = env.expand_varref("${CFLAGS}", vars)
+    vars = vars.merge(
+      "CFLAGS" => cflags + %w[-x c],
+      "CSUFFIX" => ".xyz")
+    env.run_builder(env.builders["Object"], target, sources, cache, vars)
+  end
+end
+
+Rscons::Environment.new do |env|
+  env.add_builder(MyObject.new)
+  File.open("test.xyz", "w") do |fh|
+    fh.puts <<EOF
+#include <stdio.h>
+int main(int argc, char * argv[])
+{
+    printf("XYZ!\\n");
+    return 0;
+}
+EOF
+  env.Program("test", "test.xyz")
+  end
+end

build_tests/simple/build_root_builder_no_sources.rb

@@ -0,0 +1,10 @@
+class TestBuilder < Rscons::Builder
+  def run(target, sources, cache, env, vars)
+    target
+  end
+end
+Rscons::Environment.new do |env|
+  env.build_root = "build"
+  env.add_builder(TestBuilder.new)
+  env.TestBuilder("file")
+end

build_tests/simple/build_sources.rb

@@ -0,0 +1,22 @@
+class MyProgram < Rscons::Builder
+  def run(options)
+    target, sources, cache, env, vars = options.values_at(:target, :sources, :cache, :env, :vars)
+    objects = env.build_sources(sources, [".o"], cache, vars)
+    command = %W[gcc -o #{target}] + objects
+    return false unless env.execute("#{name} #{target}", command)
+    target
+  end
+end
+
+Rscons::Environment.new do |env|
+  env.add_builder(MyProgram.new)
+  env.Object("simple.o", "simple.c")
+  File.open("two.c", "wb") do |fh|
+    fh.puts <<-EOF
+      void two(void)
+      {
+      }
+    EOF
+  end
+  env.MyProgram("simple.exe", ["simple.o", "two.c"])
+end

build_tests/simple/cache_command_change.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new do |env|
+  env["LIBS"] += ["c"]
+  env.Program('simple.exe', Dir['*.c'])
+end

build_tests/simple/cache_dep_checksum_change.rb

@@ -0,0 +1,3 @@
+Rscons::Environment.new do |env|
+  env.Copy("simple.copy", "simple.c")
+end

build_tests/simple/cache_new_dep1.rb

@@ -0,0 +1,6 @@
+Rscons::Environment.new do |env|
+  env.Object("simple.o", "simple.c")
+  env.process
+  env["LDCMD"] = %w[gcc -o ${_TARGET} simple.o]
+  env.Program('simple.exe', [])
+end

build_tests/simple/cache_new_dep2.rb

@@ -0,0 +1,5 @@
+Rscons::Environment.new do |env|
+  env.Object("simple.o", "simple.c")
+  env["LDCMD"] = %w[gcc -o ${_TARGET} simple.o]
+  env.Program('simple.exe', ["simple.o"])
+end

build_tests/simple/cache_successful_builds_when_one_fails.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new do |env|
+  env.Object("simple.o", "simple.c")
+  env.Object("two.o", "two.c")
+end

build_tests/simple/cache_user_dep.rb

@@ -0,0 +1,5 @@
+Rscons::Environment.new do |env|
+  target = env.Program("simple.exe", "simple.c")
+  user_deps = File.read("user_deps", mode: "rb").split(" ")
+  target.depends(*user_deps)
+end

build_tests/simple/clear_targets.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new do |env|
+  env.Program("simple.exe", "simple.c")
+  env.clear_targets
+end

build_tests/simple/clone_n_threads.rb

@@ -0,0 +1,7 @@
+base_env = Rscons::Environment.new do |env|
+  env.n_threads = 165
+end
+
+my_env = base_env.clone
+
+puts my_env.n_threads

build_tests/simple/command.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new(echo: :command) do |env|
+  env["LD"] = "gcc"
+  env.Program('simple.exe', Dir['*.c'])
+end

build_tests/simple/command_builder.rb

@@ -0,0 +1,7 @@
+Rscons::Environment.new do |env|
+  command = %W[gcc -o ${_TARGET} ${_SOURCES}]
+  env.Command("simple.exe",
+              "simple.c",
+              "CMD" => command,
+              "CMD_DESC" => "BuildIt")
+end

build_tests/simple/command_redirect.rb

@@ -0,0 +1,8 @@
+Rscons::Environment.new do |env|
+  env.Object("simple.o", "simple.c")
+  env.Command("simple.txt",
+              "simple.o",
+              "CMD" => %w[objdump --disassemble --source ${_SOURCES}],
+              "CMD_STDOUT" => "${_TARGET}",
+              "CMD_DESC" => "My Disassemble")
+end

build_tests/simple/cvar_array.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new do |env|
+  env["sources"] = Dir["*.c"].sort
+  env.Program("simple.exe", "${sources}")
+end

build_tests/simple/directory.rb

@@ -0,0 +1,3 @@
+Rscons::Environment.new do |env|
+  env.Directory("teh_dir")
+end

build_tests/simple/disassemble.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new do |env|
+  env.Object("simple.o", "simple.c")
+  env.Disassemble("simple.txt", "simple.o")
+end

build_tests/simple/dump.rb

@@ -0,0 +1,5 @@
+env = Rscons::Environment.new do |env|
+  env["CFLAGS"] += %w[-O2 -fomit-frame-pointer]
+  env[:foo] = :bar
+end
+env.dump

build_tests/simple/error_circular_dependency.rb

@@ -0,0 +1,5 @@
+Rscons::Environment.new do |env|
+  env.Command("foo", "bar")
+  env.Command("bar", "baz")
+  env.Command("baz", "foo")
+end

build_tests/simple/error_circular_dependency2.rb

@@ -0,0 +1,3 @@
+Rscons::Environment.new do |env|
+  env.Command("foo", "foo")
+end

build_tests/simple/error_unknown_suffix.rb

@@ -0,0 +1,6 @@
+Rscons::Environment.new do |env|
+  File.open("foo.xyz", "wb") do |fh|
+    fh.puts("hi")
+  end
+  env.Object("foo.o", "foo.xyz")
+end

build_tests/simple/link_flag_change.rb

@@ -0,0 +1,5 @@
+Rscons::Environment.new(echo: :command) do |env|
+  env["LD"] = "gcc"
+  env["LIBPATH"] += ["libdir"]
+  env.Program('simple.exe', Dir['*.c'])
+end

build_tests/simple/override_cccmd.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new(echo: :command) do |env|
+  env.Object("simple.o", "simple.c",
+             "CCCMD" => %w[${CC} -c -o ${_TARGET} -Dfoobar ${_SOURCES}])
+end

build_tests/simple/override_depfilesuffix.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new(echo: :command) do |env|
+  env["DEPFILESUFFIX"] = ".deppy"
+  env.Object("simple.o", "simple.c")
+end

build_tests/simple/phony_target.rb

@@ -0,0 +1,11 @@
+Rscons::Environment.new do |env|
+  env.add_builder(:Checker) do |target, sources, cache, env, vars|
+    unless cache.up_to_date?(target, :Checker, sources, env)
+      puts "Checker #{sources.first}" if env.echo != :off
+      cache.register_build(target, :Checker, sources, env)
+    end
+    target
+  end
+  env.Program("simple.exe", "simple.c")
+  env.Checker(:checker, "simple.exe")
+end

build_tests/simple/preprocess.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new do |env|
+  env.Preprocess("simplepp.c", "simple.c")
+  env.Program("simple.exe", "simplepp.c")
+end

build_tests/simple/progsuffix.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new do |env|
+  env["PROGSUFFIX"] = ".out"
+  env.Program("simple", Dir["*.c"])
+end

build_tests/simple/progsuffix2.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new do |env|
+  env["MYSUFFIX"] = ".out"
+  env.Program("simple${MYSUFFIX}", Dir["*.c"])
+end

build_tests/simple/progsuffix3.rb

@@ -0,0 +1,3 @@
+Rscons::Environment.new do |env|
+  env.Program("simple", Dir["*.c"], "PROGSUFFIX" => ".xyz")
+end

build_tests/simple/register_target_in_build_hook.rb

@@ -0,0 +1,8 @@
+Rscons::Environment.new do |env|
+  env.Program("simple.exe", Dir["*.c"])
+  env.add_build_hook do |build_op|
+    if build_op[:target].end_with?(".o")
+      env.Disassemble("#{build_op[:target]}.txt", build_op[:target])
+    end
+  end
+end

build_tests/simple/run_builder.rb

@@ -0,0 +1,12 @@
+class MyObject < Rscons::Builder
+  def run(options)
+    target, sources, cache, env, vars = options.values_at(:target, :sources, :cache, :env, :vars)
+    env.run_builder(env.builders["Object"], target, sources, cache, vars)
+  end
+end
+
+Rscons::Environment.new do |env|
+  env.add_builder(MyObject.new)
+  env.MyObject("simple.o", "simple.c")
+  env.Program("simple.exe", "simple.o")
+end

build_tests/simple/standard_build.rb

@@ -0,0 +1,17 @@
+class MyCommand < Rscons::Builder
+  def run(target, sources, cache, env, vars)
+    vars = vars.merge({
+      "_TARGET" => target,
+      "_SOURCES" => sources,
+    })
+    command = env.build_command("${CMD}", vars)
+    cmd_desc = vars["CMD_DESC"] || "MyCommand"
+    standard_build("#{cmd_desc} #{target}", target, command, sources, env, cache)
+  end
+end
+
+Rscons::Environment.new do |env|
+  env.add_builder(MyCommand.new)
+  command = %w[gcc -c -o ${_TARGET} ${_SOURCES}]
+  env.MyCommand("simple.o", "simple.c", "CMD" => command)
+end

build_tests/simple/threading.rb

@@ -0,0 +1,28 @@
+class ThreadedTestBuilder < Rscons::Builder
+  def run(options)
+    command = ["ruby", "-e", %[sleep 1]]
+    Rscons::ThreadedCommand.new(
+      command,
+      short_description: "ThreadedTestBuilder #{options[:target]}")
+  end
+  def finalize(options)
+    true
+  end
+end
+
+class NonThreadedTestBuilder < Rscons::Builder
+  def run(options)
+    puts "NonThreadedTestBuilder #{options[:target]}"
+    sleep 1
+    options[:target]
+  end
+end
+
+Rscons::Environment.new do |env|
+  env.add_builder(ThreadedTestBuilder.new)
+  env.add_builder(NonThreadedTestBuilder.new)
+  env.ThreadedTestBuilder("a")
+  env.ThreadedTestBuilder("b")
+  env.ThreadedTestBuilder("c")
+  env.NonThreadedTestBuilder("d")
+end

build_tests/simple/user_dep_build_order.rb

@@ -0,0 +1,22 @@
+class TestBuilder < Rscons::Builder
+  def run(options)
+    target, env, vars, cache = options.values_at(:target, :env, :vars, :cache)
+    if target == "two"
+      return false unless File.exists?("one")
+    end
+    wait_time = env.expand_varref("${wait_time}", vars)
+    command = ["ruby", "-e", "require 'fileutils'; sleep #{wait_time}; FileUtils.touch('#{target}');"]
+    standard_threaded_build("TestBuilder", target, command, [], env, cache)
+  end
+
+  def finalize(options)
+    standard_finalize(options)
+  end
+end
+
+Rscons::Environment.new do |env|
+  env.add_builder(TestBuilder.new)
+  env.TestBuilder("one", [], "wait_time" => "3")
+  env.TestBuilder("two", [], "wait_time" => "0")
+  env.depends("two", "one")
+end

build_tests/simple/user_dependencies.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new do |env|
+  program = env.Program("simple.exe", Dir["*.c"])
+  env.depends(program, "program.ld")
+end

build_tests/simple/wait_for_builds_on_failure.rb

@@ -0,0 +1,20 @@
+class Fail < Rscons::Builder
+  def run(options)
+    target, cache, env, vars = options.values_at(:target, :cache, :env, :vars)
+    wait_time = env.expand_varref("${wait_time}", vars)
+    ruby_command = %[sleep #{wait_time}; exit 2]
+    command = %W[ruby -e #{ruby_command}]
+    standard_threaded_build("Fail #{target}", target, command, [], env, cache)
+  end
+  def finalize(options)
+    standard_finalize(options)
+  end
+end
+
+Rscons::Environment.new do |env|
+  env.add_builder(Fail.new)
+  4.times do |i|
+    wait_time = i + 1
+    env.Fail("foo_#{wait_time}", [], "wait_time" => wait_time.to_s)
+  end
+end

build_tests/simple_cc/Rsconsfile

@@ -0,0 +1,3 @@
+Rscons::Environment.new do |env|
+  env.Program('simple.exe', Dir['*.cc'])
+end

build_tests/simple_cc/cxxsuffix.rb

@@ -0,0 +1,5 @@
+Rscons::Environment.new do |env|
+  env["CXXSUFFIX"] = %w[.cccc .cc]
+  env["CXXFLAGS"] += %w[-x c++]
+  env.Program("simple.exe", Dir["*.cc"] + Dir["*.cccc"])
+end

build_tests/simple_cc/preprocess.rb

@@ -0,0 +1,4 @@
+Rscons::Environment.new do |env|
+  env.Preprocess("simplepp.cc", "simple.cc")
+  env.Program("simple.exe", "simplepp.cc")
+end

build_tests/two_sources/Rsconsfile

@@ -0,0 +1,4 @@
+Rscons::Environment.new(echo: :command) do |env|
+  env.Object("one.o", "one.c", 'CPPFLAGS' => ['-DONE'])
+  env.Program('two_sources.exe', ['one.o', 'two.c'])
+end