Version 0.1.2

Notes

This release includes all the supported combinations of platforms, toolchains and configurations. To report a bug the --version or -v flag can be used to retrieve the binary information:

$ ./sbs -v
sbs build system (0.1.2)


    Build information:
       - Host OS: linux
       - Host architecture: x86_64
       - Target OS: linux
       - Target architecture: x86_64
       - Toolchain:
           - Compiler: clang
           - Linker: clang
       - Configuration: clang-debug

Changes

General

• Keep track of target's commands to properly invalidate the build when something changes
• Added the --working-dir or -cwd flag that allows changing the program's working directory. Example:
  • ./sbs -cwd=../some/other/project build debug
• Detection of the host OS and architecture that is used to select the combination of environment, toolchain, and config (so-called "triplets" in sbs jargon)
• Added a scripting mode: a dry-run of a build command for unsupported triplets in the host machine. This allows to generate build scripts to bootstrap sbs

Improvements in the language to support scripting capabilities:

• Added some basic types:
  • Arrays: [ $sbs.win, $sbs.linux ]
  • Strings: "hello world"
• Added relational operators:
  • ==: $sbs.host.os == $sbs.linux
  • !=: $sbs.host.os != $sbs.linux
  • in <array>: $sbs.host.arch in [ "x86", "x86_64" ]
• Added logical operators:
  • and: $sbs.host.os == $sbs.win and $sbs.host.arch == $sbs.x86
  • or: $sbs.host.os == $sbs.win or $sbs.os == $sbs.win
  • not: not($sbs.host.os == $sbs.win)
• Conditional expressions using if-else statements and the ternary operator. Examples:
  • if-else: if $sbs.host.os == $sbs.linux { ... } else if $sbs.host.os == $sbs.win { ... } else { ... }
  • Ternary operator: env example { arch: $env.Platform == "x64" ? "x86_64" : ($env.Platform == "x86" ? "x86" : "unk" ) }
• Added support for string variable declaration (top-level declaration):
  • $var_name = "hello world!"
• Added built-in variables:
  • sbs.bin: Path to the sbs binary (argv[0])
  • sbs.host.os: The OS of the host machine
  • sbs.host.arch: The architecture of the host machine
  • sbs.preset: The preset name (if preset)
  • sbs.env: The environment name
    • sbs.os: The environment OS property (you can use an environment with an $sbs.linux OS on a $sbs.win host machine: WSL)
    • sbs.arch: The environment architecture property (for cross-compilation)
    • sbs.shell: The type of shell that the environment uses to run the commands
  • sbs.toolchain: The toolchain name
    • sbs.compiler: The toolchain's compiler binary
    • sbs.archiver: The toolchain's archiver binary
    • sbs.linker: The toolchain's linker binary
  • sbs.config: The configuration name
  • sbs.target: The name of the invoked target
    • sbs.input_file: Takes the value of each input source the target needs in order to run (specific to each target type)
    • sbs.output_file: The value of the target's output file
  • sbs.win: A constant-like variable that represents the family of the Windows operating system
  • sbs.linux: A constant-like variable that represents the family of Linux operating systems
  • sbs.x86: A constant-like variable that identifies the x86 architecture
  • sbs.x86_64: A constant-like variable that identifies the x86_64 architecture
• Added the special pseudo-varible env.<name> that retrieves values from the environment. Example:
  • $env.PATH
  • $env.PWD
• Added string interpolation support for variables. Examples:
  • In properties: env example { arch: "${env.Platform}" } is similar to env example { arch: $env.Platform }
  • In actions: env example { actions: { before: [ `echo ${sbs.host.os}` ] }}

Environments:

• Added the for clause
• Now the arch property is tied to the environment instead of the host machine

Presets:

• Added the envs, toolchains, and configs properties that accepts multiple values (arrays) that can be combined to form the "triplets"
• Added the targets property to run more than one target on the same build command

Checksums

The checksums.sha512 file contains the checksums for all the files in this release:

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v0.1.0

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