98 lines
2.1 KiB
Go
98 lines
2.1 KiB
Go
package fs
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import (
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"context"
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"fmt"
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"log"
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"path/filepath"
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"time"
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"github.com/hashicorp/go-version"
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"github.com/hashicorp/hc-install/errors"
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"github.com/hashicorp/hc-install/internal/src"
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"github.com/hashicorp/hc-install/internal/validators"
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"github.com/hashicorp/hc-install/product"
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)
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// Version finds the first executable binary of the product name
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// which matches the version constraint within system $PATH and any declared ExtraPaths
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// (which are *appended* to any directories in $PATH)
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type Version struct {
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Product product.Product
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Constraints version.Constraints
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ExtraPaths []string
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Timeout time.Duration
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logger *log.Logger
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}
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func (*Version) IsSourceImpl() src.InstallSrcSigil {
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return src.InstallSrcSigil{}
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}
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func (v *Version) SetLogger(logger *log.Logger) {
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v.logger = logger
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}
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func (v *Version) log() *log.Logger {
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if v.logger == nil {
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return discardLogger
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}
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return v.logger
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}
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func (v *Version) Validate() error {
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if !validators.IsBinaryNameValid(v.Product.BinaryName()) {
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return fmt.Errorf("invalid binary name: %q", v.Product.BinaryName())
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}
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if len(v.Constraints) == 0 {
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return fmt.Errorf("undeclared version constraints")
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}
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if v.Product.GetVersion == nil {
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return fmt.Errorf("undeclared version getter")
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}
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return nil
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}
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func (v *Version) Find(ctx context.Context) (string, error) {
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timeout := defaultTimeout
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if v.Timeout > 0 {
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timeout = v.Timeout
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}
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ctx, cancelFunc := context.WithTimeout(ctx, timeout)
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defer cancelFunc()
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execPath, err := findFile(lookupDirs(v.ExtraPaths), v.Product.BinaryName(), func(file string) error {
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err := checkExecutable(file)
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if err != nil {
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return err
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}
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ver, err := v.Product.GetVersion(ctx, file)
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if err != nil {
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return err
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}
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for _, vc := range v.Constraints {
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if !vc.Check(ver) {
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return fmt.Errorf("version (%s) doesn't meet constraints %s", ver, vc.String())
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}
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}
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return nil
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})
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if err != nil {
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return "", errors.SkippableErr(err)
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}
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if !filepath.IsAbs(execPath) {
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var err error
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execPath, err = filepath.Abs(execPath)
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if err != nil {
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return "", errors.SkippableErr(err)
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}
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}
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return execPath, nil
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}
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