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Unlike a plain `net/http/client.Do()`, requests made through client/request use the `sendRequest` function, which parses the server response, and may convert non-transport errors into errors (through `cli.checkResponseErr()`). This means that we cannot assume that no reader was opened if an error is returned. This patch changes various locations where `ensureReaderClosed` was only called in the non-error situation, and uses a `defer` to make sure it's always called. `ensureReaderClosed` itself already checks if the response's body was set, so in situations where the error was due to a transport error, calling `ensureReaderClosed` should be a no-op. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
21 lines
515 B
Go
21 lines
515 B
Go
package client // import "github.com/docker/docker/client"
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import (
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"context"
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"encoding/json"
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"github.com/docker/docker/api/types/swarm"
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)
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// SwarmInit initializes the swarm.
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func (cli *Client) SwarmInit(ctx context.Context, req swarm.InitRequest) (string, error) {
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serverResp, err := cli.post(ctx, "/swarm/init", nil, req, nil)
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defer ensureReaderClosed(serverResp)
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if err != nil {
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return "", err
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}
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var response string
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err = json.NewDecoder(serverResp.body).Decode(&response)
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return response, err
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}
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