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https://github.com/go-gitea/gitea
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3d63caa542
* GET /repos/:owner/:repo/commits/:ref * add Validation Checks * Fix & Extend TEST * add two new tast cases
59 lines
1.4 KiB
Go
59 lines
1.4 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Copyright 2019 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package git
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import (
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"encoding/hex"
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"fmt"
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"regexp"
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"strings"
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"github.com/go-git/go-git/v5/plumbing"
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)
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// EmptySHA defines empty git SHA
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const EmptySHA = "0000000000000000000000000000000000000000"
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// SHAPattern can be used to determine if a string is an valid sha
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var SHAPattern = regexp.MustCompile(`^[0-9a-f]{4,40}$`)
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// SHA1 a git commit name
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type SHA1 = plumbing.Hash
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// MustID always creates a new SHA1 from a [20]byte array with no validation of input.
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func MustID(b []byte) SHA1 {
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var id SHA1
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copy(id[:], b)
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return id
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}
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// NewID creates a new SHA1 from a [20]byte array.
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func NewID(b []byte) (SHA1, error) {
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if len(b) != 20 {
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return SHA1{}, fmt.Errorf("Length must be 20: %v", b)
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}
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return MustID(b), nil
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}
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// MustIDFromString always creates a new sha from a ID with no validation of input.
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func MustIDFromString(s string) SHA1 {
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b, _ := hex.DecodeString(s)
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return MustID(b)
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}
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// NewIDFromString creates a new SHA1 from a ID string of length 40.
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func NewIDFromString(s string) (SHA1, error) {
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var id SHA1
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s = strings.TrimSpace(s)
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if len(s) != 40 {
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return id, fmt.Errorf("Length must be 40: %s", s)
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}
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b, err := hex.DecodeString(s)
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if err != nil {
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return id, err
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}
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return NewID(b)
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}
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