Mercurial > gemma

annotate pkg/common/errors.go @ 3678:8f58851927c0

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client: make layer factory only return new layer config for individual maps instead of each time it is invoked. The purpose of the factory was to support multiple maps with individual layers. But returning a new config each time it is invoked leads to bugs that rely on the layer's state. Now this factory reuses the same objects it created before, per map.
author Markus Kottlaender <markus@intevation.de>
date Mon, 17 Jun 2019 17:31:35 +0200
parents 6a021108410b
children 6c5c15b2fb64
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1 // This is Free Software under GNU Affero General Public License v >= 3.0
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2 // without warranty, see README.md and license for details.
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3 //
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4 // SPDX-License-Identifier: AGPL-3.0-or-later
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5 // License-Filename: LICENSES/AGPL-3.0.txt
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6 //
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7 // Copyright (C) 2018 by via donau
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8 // – Österreichische Wasserstraßen-Gesellschaft mbH
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9 // Software engineering by Intevation GmbH
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10 //
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11 // Author(s):
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12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de>
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13
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14 package common
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15
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16 import (
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17 "errors"
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18 "fmt"
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19 "strings"
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20 )
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21
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22 // ToError concats a slice of errors to a single error.
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23 func ToError(errs []error) error {
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24 var b strings.Builder
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25 for i, err := range errs {
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26 if i > 0 {
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27 fmt.Fprintf(&b, ", ")
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28 }
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29 fmt.Fprintf(&b, "%v", err)
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30 }
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31 return errors.New(b.String())
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32 }