features.go

package batches

import (
	"github.com/sourcegraph/sourcegraph/lib/errors"

	"github.com/sourcegraph/src-cli/internal/api"
)

// FeatureFlags represent features that are only available on certain
// Sourcegraph versions and we therefore have to detect at runtime.
type FeatureFlags struct {
	AllowArrayEnvironments   bool
	IncludeAutoAuthorDetails bool
	UseGzipCompression       bool
	AllowTransformChanges    bool
	AllowWorkspaces          bool
	BatchChanges             bool
	AllowConditionalExec     bool
	AllowOptionalPublished   bool
	ServerSideBatchChanges   bool
	BitbucketCloud           bool
}

func (ff *FeatureFlags) SetFromVersion(version string) error {
	for _, feature := range []struct {
		flag       *bool
		constraint string
		minDate    string
	}{
		// NOTE: It's necessary to include a "-0" prerelease suffix on each constraint so that
		// prereleases of future versions are still considered to satisfy the constraint.
		//
		// For example, the version "3.35.1-rc.3" is not considered to satisfy the constraint
		// ">= 3.23.0". However, the same version IS considered to satisfy the constraint
		// "3.23.0-0". See
		// https://github.com/Masterminds/semver#working-with-prerelease-versions for more.
		{&ff.AllowArrayEnvironments, ">= 3.23.0-0", "2020-11-24"},
		{&ff.IncludeAutoAuthorDetails, ">= 3.20.0-0", "2020-09-10"},
		{&ff.UseGzipCompression, ">= 3.21.0-0", "2020-10-12"},
		{&ff.AllowTransformChanges, ">= 3.23.0-0", "2020-12-11"},
		{&ff.AllowWorkspaces, ">= 3.25.0-0", "2021-01-29"},
		{&ff.BatchChanges, ">= 3.26.0-0", "2021-03-07"},
		{&ff.AllowConditionalExec, ">= 3.28.0-0", "2021-05-05"},
		{&ff.AllowOptionalPublished, ">= 3.30.0-0", "2021-06-21"},
		{&ff.ServerSideBatchChanges, ">= 3.37.0-0", "2022-02-08"},
		{&ff.BitbucketCloud, ">= 3.40.0-0", "2022-04-20"},
	} {
		value, err := api.CheckSourcegraphVersion(version, feature.constraint, feature.minDate)
		if err != nil {
			return errors.Wrap(err, "failed to check version returned by Sourcegraph")
		}
		*feature.flag = value
	}

	return nil
}