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build.roc
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build.roc
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app [main] {
cli: platform "https://github.com/roc-lang/basic-cli/releases/download/0.15.0/SlwdbJ-3GR7uBWQo6zlmYWNYOxnvo8r6YABXD-45UOw.tar.br",
}
import cli.Cmd
import cli.Stdout
import cli.Env
import cli.Arg
import cli.Arg.Opt
import cli.Arg.Cli
## Builds the basic-webserver [platform](https://www.roc-lang.org/platforms).
##
## run with: roc ./build.roc
##
main : Task {} _
main =
cliParser =
Arg.Opt.maybeStr { short: "p", long: "roc", help: "Path to the roc executable. Can be just `roc` or a full path."}
|> Arg.Cli.finish {
name: "basic-webserver-builder",
version: "",
authors: ["Luke Boswell <https://github.com/lukewilliamboswell>"],
description: "Generates all files needed by Roc to use this basic-cli platform.",
}
|> Arg.Cli.assertValid
when Arg.Cli.parseOrDisplayMessage cliParser (Arg.list! {}) is
Ok parsedArgs -> run parsedArgs
Err errMsg -> Task.err (Exit 1 errMsg)
run : Result Str err -> Task {} _
run = \maybeRoc ->
# rocCmd may be a path or just roc
rocCmd = maybeRoc |> Result.withDefault "roc"
rocVersion! rocCmd
osAndArch = getOSAndArch!
stubLibPath = "platform/libapp.$(stubFileExtension osAndArch)"
buildStubAppLib! rocCmd stubLibPath
cargoBuildHost!
rustTargetFolder = getRustTargetFolder!
copyHostLib! osAndArch rustTargetFolder
preprocessHost! rocCmd stubLibPath rustTargetFolder
info! "Successfully built platform files!"
rocVersion : Str -> Task {} _
rocVersion = \rocCmd ->
info! "Checking provided roc; executing `$(rocCmd) version`:"
rocCmd
|> Cmd.exec ["version"]
|> Task.mapErr! RocVersionCheckFailed
getOSAndArch : Task OSAndArch _
getOSAndArch =
info! "Getting the native operating system and architecture..."
Env.platform
|> Task.await convertOSAndArch
buildStubAppLib : Str, Str -> Task {} _
buildStubAppLib = \rocCmd, stubLibPath ->
info! "Building stubbed app shared library ..."
rocCmd
|> Cmd.exec ["build", "--lib", "platform/libapp.roc", "--output", stubLibPath, "--optimize"]
|> Task.mapErr! ErrBuildingAppStub
getRustTargetFolder : Task Str _
getRustTargetFolder =
when Env.var "CARGO_BUILD_TARGET" |> Task.result! is
Ok targetEnvVar ->
if Str.isEmpty targetEnvVar then
Task.ok "target/release/"
else
Task.ok "target/$(targetEnvVar)/release/"
Err e ->
info! "Failed to get env var CARGO_BUILD_TARGET with error \(Inspect.toStr e). Assuming default CARGO_BUILD_TARGET (native)..."
Task.ok "target/release/"
cargoBuildHost : Task {} _
cargoBuildHost =
info! "Building rust host ..."
"cargo"
|> Cmd.exec ["build", "--release"]
|> Task.mapErr! ErrBuildingHostBinaries
copyHostLib : OSAndArch, Str -> Task {} _
copyHostLib = \osAndArch, rustTargetFolder ->
hostBuildPath = "$(rustTargetFolder)libhost.a"
hostDestPath = "platform/$(prebuiltStaticLibFile osAndArch)"
info! "Moving the prebuilt binary from $(hostBuildPath) to $(hostDestPath) ..."
"cp"
|> Cmd.exec [hostBuildPath, hostDestPath]
|> Task.mapErr! ErrMovingPrebuiltLegacyBinary
OSAndArch : [
MacosArm64,
MacosX64,
LinuxArm64,
LinuxX64,
WindowsArm64,
WindowsX64,
]
convertOSAndArch : _ -> Task OSAndArch _
convertOSAndArch =\{os, arch} ->
when (os, arch) is
(MACOS, AARCH64) -> Task.ok MacosArm64
(MACOS, X64) -> Task.ok MacosX64
(LINUX, AARCH64) -> Task.ok LinuxArm64
(LINUX, X64) -> Task.ok LinuxX64
_ -> Task.err (UnsupportedNative os arch)
stubFileExtension : OSAndArch -> Str
stubFileExtension = \osAndArch ->
when osAndArch is
MacosX64 | MacosArm64 -> "dylib"
LinuxArm64 | LinuxX64-> "so"
WindowsX64| WindowsArm64 -> "dll"
prebuiltStaticLibFile : OSAndArch -> Str
prebuiltStaticLibFile = \osAndArch ->
when osAndArch is
MacosArm64 -> "macos-arm64.a"
MacosX64 -> "macos-x64.a"
LinuxArm64 -> "linux-arm64.a"
LinuxX64 -> "linux-x64.a"
WindowsArm64 -> "windows-arm64.lib"
WindowsX64 -> "windows-x64.lib"
preprocessHost : Str, Str, Str -> Task {} _
preprocessHost = \rocCmd, stubLibPath, rustTargetFolder ->
info! "Preprocessing surgical host ..."
surgicalBuildPath = "$(rustTargetFolder)host"
rocCmd
|> Cmd.exec ["preprocess-host", surgicalBuildPath, "platform/main.roc", stubLibPath]
|> Task.mapErr! ErrPreprocessingSurgicalBinary
info : Str -> Task {} _
info = \msg ->
Stdout.line! "\u(001b)[34mINFO:\u(001b)[0m $(msg)"