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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>
36 lines
911 B
Go
36 lines
911 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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"fmt"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/filters"
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)
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// VolumesPrune requests the daemon to delete unused data
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func (cli *Client) VolumesPrune(ctx context.Context, pruneFilters filters.Args) (types.VolumesPruneReport, error) {
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var report types.VolumesPruneReport
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if err := cli.NewVersionError("1.25", "volume prune"); err != nil {
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return report, err
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}
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query, err := getFiltersQuery(pruneFilters)
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if err != nil {
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return report, err
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}
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serverResp, err := cli.post(ctx, "/volumes/prune", query, nil, nil)
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defer ensureReaderClosed(serverResp)
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if err != nil {
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return report, err
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}
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if err := json.NewDecoder(serverResp.body).Decode(&report); err != nil {
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return report, fmt.Errorf("Error retrieving volume prune report: %v", err)
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}
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return report, nil
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}
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