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package builder
import (
"fmt"
"runtime"
"github.com/tinygo-org/tinygo/compileopts"
"github.com/tinygo-org/tinygo/goenv"
)
// NewConfig builds a new Config object from a set of compiler options. It also
// loads some information from the environment while doing that. For example, it
// uses the currently active GOPATH (from the goenv package) to determine the Go
// version to use.
func NewConfig(options *compileopts.Options) (*compileopts.Config, error) {
spec, err := compileopts.LoadTarget(options)
if err != nil {
return nil, err
}
if options.OpenOCDCommands != nil {
// Override the OpenOCDCommands from the target spec if specified on
// the command-line
spec.OpenOCDCommands = options.OpenOCDCommands
}
// Version range supported by TinyGo.
const minorMin = 19
const minorMax = 23
// Check that we support this Go toolchain version.
gorootMajor, gorootMinor, err := goenv.GetGorootVersion()
if err != nil {
return nil, err
}
if gorootMajor != 1 || gorootMinor < minorMin || gorootMinor > minorMax {
// Note: when this gets updated, also update the Go compatibility matrix:
// https://github.com/tinygo-org/tinygo-site/blob/dev/content/docs/reference/go-compat-matrix.md
return nil, fmt.Errorf("requires go version 1.19 through 1.23, got go%d.%d", gorootMajor, gorootMinor)
}
// Check that the Go toolchain version isn't too new, if we haven't been
// compiled with the latest Go version.
// This may be a bit too aggressive: if the newer version doesn't change the
// Go language we will most likely be able to compile it.
buildMajor, buildMinor, err := goenv.Parse(runtime.Version())
if err != nil {
return nil, err
}
if buildMajor != 1 || buildMinor < gorootMinor {
return nil, fmt.Errorf("cannot compile with Go toolchain version go%d.%d (TinyGo was built using toolchain version %s)", gorootMajor, gorootMinor, runtime.Version())
}
return &compileopts.Config{
Options: options,
Target: spec,
GoMinorVersion: gorootMinor,
TestConfig: options.TestConfig,
}, nil
}
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