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45deb8bdca
Support legacy _links LFS batch response.
Fixes #31512.
This is backwards-compatible change to the LFS client so that, upon
mirroring from an upstream which has a batch api, it can download
objects whether the responses contain the `_links` field or its
successor the `actions` field. When Gitea must fallback to the legacy
`_links` field a logline is emitted at INFO level which looks like this:
```
...s/lfs/http_client.go:188:performOperation() [I] <LFSPointer ee95d0a27ccdfc7c12516d4f80dcf144a5eaf10d0461d282a7206390635cdbee:160> is using a deprecated batch schema response!
```
I've only run `test-backend` with this code, but added a new test to
cover this case. Additionally I have a fork with this change deployed
which I've confirmed syncs LFS from Gitea<-Artifactory (which has legacy
`_links`) as well as from Gitea<-Gitea (which has the modern `actions`).
Signed-off-by: Royce Remer <royceremer@gmail.com>
(cherry picked from commit df805d6ed0458dbec258d115238fde794ed4d0ce)
(cherry picked from commit 45181ee945)
78 lines
2.4 KiB
Go
78 lines
2.4 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package lfs
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import (
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"time"
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)
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const (
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// MediaType contains the media type for LFS server requests
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MediaType = "application/vnd.git-lfs+json"
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// Some LFS servers offer content with other types, so fallback to '*/*' if application/vnd.git-lfs+json cannot be served
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AcceptHeader = "application/vnd.git-lfs+json;q=0.9, */*;q=0.8"
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)
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// BatchRequest contains multiple requests processed in one batch operation.
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// https://github.com/git-lfs/git-lfs/blob/main/docs/api/batch.md#requests
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type BatchRequest struct {
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Operation string `json:"operation"`
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Transfers []string `json:"transfers,omitempty"`
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Ref *Reference `json:"ref,omitempty"`
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Objects []Pointer `json:"objects"`
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}
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// Reference contains a git reference.
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// https://github.com/git-lfs/git-lfs/blob/main/docs/api/batch.md#ref-property
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type Reference struct {
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Name string `json:"name"`
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}
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// Pointer contains LFS pointer data
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type Pointer struct {
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Oid string `json:"oid" xorm:"UNIQUE(s) INDEX NOT NULL"`
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Size int64 `json:"size" xorm:"NOT NULL"`
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}
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// BatchResponse contains multiple object metadata Representation structures
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// for use with the batch API.
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// https://github.com/git-lfs/git-lfs/blob/main/docs/api/batch.md#successful-responses
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type BatchResponse struct {
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Transfer string `json:"transfer,omitempty"`
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Objects []*ObjectResponse `json:"objects"`
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}
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// ObjectResponse is object metadata as seen by clients of the LFS server.
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type ObjectResponse struct {
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Pointer
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Actions map[string]*Link `json:"actions,omitempty"`
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Links map[string]*Link `json:"_links,omitempty"`
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Error *ObjectError `json:"error,omitempty"`
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}
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// Link provides a structure with information about how to access a object.
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type Link struct {
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Href string `json:"href"`
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Header map[string]string `json:"header,omitempty"`
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ExpiresAt *time.Time `json:"expires_at,omitempty"`
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}
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// ObjectError defines the JSON structure returned to the client in case of an error.
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type ObjectError struct {
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Code int `json:"code"`
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Message string `json:"message"`
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}
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// PointerBlob associates a Git blob with a Pointer.
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type PointerBlob struct {
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Hash string
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Pointer
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}
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// ErrorResponse describes the error to the client.
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type ErrorResponse struct {
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Message string
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DocumentationURL string `json:"documentation_url,omitempty"`
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RequestID string `json:"request_id,omitempty"`
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}
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