mirror of https://github.com/docker/cli.git
75 lines
3.0 KiB
Go
75 lines
3.0 KiB
Go
package loader
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import (
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"strconv"
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"strings"
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interp "github.com/docker/cli/cli/compose/interpolation"
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"github.com/pkg/errors"
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)
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var interpolateTypeCastMapping = map[interp.Path]interp.Cast{
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servicePath("configs", interp.PathMatchList, "mode"): toInt,
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servicePath("secrets", interp.PathMatchList, "mode"): toInt,
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servicePath("healthcheck", "retries"): toInt,
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servicePath("healthcheck", "disable"): toBoolean,
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servicePath("deploy", "replicas"): toInt,
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servicePath("deploy", "update_config", "parallelism"): toInt,
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servicePath("deploy", "update_config", "max_failure_ratio"): toFloat,
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servicePath("deploy", "restart_policy", "max_attempts"): toInt,
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servicePath("ports", interp.PathMatchList, "target"): toInt,
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servicePath("ports", interp.PathMatchList, "published"): toInt,
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servicePath("ulimits", interp.PathMatchAll): toInt,
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servicePath("ulimits", interp.PathMatchAll, "hard"): toInt,
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servicePath("ulimits", interp.PathMatchAll, "soft"): toInt,
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servicePath("privileged"): toBoolean,
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servicePath("read_only"): toBoolean,
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servicePath("stdin_open"): toBoolean,
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servicePath("tty"): toBoolean,
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servicePath("volumes", interp.PathMatchList, "read_only"): toBoolean,
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servicePath("volumes", interp.PathMatchList, "volume", "nocopy"): toBoolean,
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iPath("networks", interp.PathMatchAll, "external"): toBoolean,
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iPath("networks", interp.PathMatchAll, "internal"): toBoolean,
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iPath("networks", interp.PathMatchAll, "attachable"): toBoolean,
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iPath("volumes", interp.PathMatchAll, "external"): toBoolean,
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iPath("secrets", interp.PathMatchAll, "external"): toBoolean,
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iPath("configs", interp.PathMatchAll, "external"): toBoolean,
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}
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func iPath(parts ...string) interp.Path {
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return interp.NewPath(parts...)
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}
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func servicePath(parts ...string) interp.Path {
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return iPath(append([]string{"services", interp.PathMatchAll}, parts...)...)
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}
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func toInt(value string) (interface{}, error) {
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return strconv.Atoi(value)
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}
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func toFloat(value string) (interface{}, error) {
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return strconv.ParseFloat(value, 64)
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}
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// should match http://yaml.org/type/bool.html
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func toBoolean(value string) (interface{}, error) {
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switch strings.ToLower(value) {
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case "y", "yes", "true", "on":
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return true, nil
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case "n", "no", "false", "off":
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return false, nil
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default:
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return nil, errors.Errorf("invalid boolean: %s", value)
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}
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}
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func interpolateConfig(configDict map[string]interface{}, lookupEnv interp.LookupValue) (map[string]interface{}, error) {
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return interp.Interpolate(
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configDict,
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interp.Options{
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LookupValue: lookupEnv,
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TypeCastMapping: interpolateTypeCastMapping,
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})
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}
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