73 lines
2.0 KiB
Go
73 lines
2.0 KiB
Go
// Copyright 2022 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package gitiles provides helpers for interfacing with gitiles
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package gitiles
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import (
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"context"
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"fmt"
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"net/http"
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"go.chromium.org/luci/common/api/gitiles"
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gpb "go.chromium.org/luci/common/proto/gitiles"
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)
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// Gitiles is the client to communicate with Gitiles.
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type Gitiles struct {
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client gpb.GitilesClient
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project string
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}
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// New creates a client to communicate with Gitiles, for the given host and
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// project.
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func New(ctx context.Context, host, project string) (*Gitiles, error) {
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client, err := gitiles.NewRESTClient(http.DefaultClient, host, false)
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if err != nil {
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return nil, err
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}
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return &Gitiles{client, project}, nil
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}
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// Hash returns the git hash of the object with the given 'committish' reference.
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func (g *Gitiles) Hash(ctx context.Context, ref string) (string, error) {
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res, err := g.client.Log(ctx, &gpb.LogRequest{
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Project: g.project,
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Committish: ref,
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PageSize: 1,
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})
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if err != nil {
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return "", err
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}
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log := res.GetLog()
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if len(log) == 0 {
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return "", fmt.Errorf("gitiles returned log was empty")
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}
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return log[0].Id, nil
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}
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// DownloadFile downloads a single file with the given project-relative path at
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// the given reference.
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func (g *Gitiles) DownloadFile(ctx context.Context, ref, path string) (string, error) {
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res, err := g.client.DownloadFile(ctx, &gpb.DownloadFileRequest{
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Project: g.project,
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Committish: ref,
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Path: path,
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})
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if err != nil {
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return "", err
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}
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return res.GetContents(), nil
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}
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