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e918d02139
This removes libcontainer's own error wrapping system, consisting of a few types and functions, aimed at typization, wrapping and unwrapping of errors, as well as saving error stack traces. Since Go 1.13 now provides its own error wrapping mechanism and a few related functions, it makes sense to switch to it. While doing that, improve some error messages so that they start with "error", "unable to", or "can't". A few things that are worth mentioning: 1. We lose stack traces (which were never shown anyway). 2. Users of libcontainer that relied on particular errors (like ContainerNotExists) need to switch to using errors.Is with the new errors defined in error.go. 3. encoding/json is unable to unmarshal the built-in error type, so we have to introduce initError and wrap the errors into it (basically passing the error as a string). This is the same as it was before, just a tad simpler (actually the initError is a type that got removed in commit afa844311; also suddenly ierr variable name makes sense now). Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
22 lines
573 B
Go
22 lines
573 B
Go
package libcontainer
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import "errors"
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var (
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ErrExist = errors.New("container with given ID already exists")
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ErrInvalidID = errors.New("invalid container ID format")
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ErrNotExist = errors.New("container does not exist")
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ErrPaused = errors.New("container paused")
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ErrRunning = errors.New("container still running")
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ErrNotRunning = errors.New("container not running")
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ErrNotPaused = errors.New("container not paused")
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)
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type ConfigError struct {
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details string
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}
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func (e *ConfigError) Error() string {
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return "invalid configuration: " + e.details
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}
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