/
git.go
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/
git.go
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//
// Copyright 2015, Sander van Harmelen
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package git
import (
"crypto/tls"
"fmt"
"net"
"net/http"
"net/url"
"strings"
"time"
"github.com/google/go-github/github"
"github.com/xanzy/go-gitlab"
"golang.org/x/oauth2"
)
var insecureTransport = &http.Transport{
Proxy: http.ProxyFromEnvironment,
Dial: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
TLSHandshakeTimeout: 10 * time.Second,
}
// Git is an interface that must be implemented by any git service
// that can be used with Chef-Guard
type Git interface {
// GetContents retrieves file and/or directory contents from git
GetContent(string, string) (*File, interface{}, error)
// CreateFile creates a new repository file
CreateFile(string, string, string, *User, []byte) (string, error)
// UpdateFile updates a repository file
UpdateFile(string, string, string, string, *User, []byte) (string, error)
// DeleteFile deletes a repository file
DeleteFile(string, string, string, string, *User) (string, error)
// DeleteDirectory deletes a repository directory including all content
DeleteDirectory(string, string, interface{}, *User) error
// GetDiff returns the diff and committer details
GetDiff(string, string, string) (string, error)
// GetArchiveLink returns a download link for the repo/tag combo
GetArchiveLink(string, string) (*url.URL, error)
// TagRepo creates a new tag on a project
TagRepo(string, string, *User) error
// TagExists returns true if the tag exists
TagExists(string, string) (bool, error)
// UntagRepo removes a new tag from a project
UntagRepo(string, string) error
}
// User represents the user that is making the change
type User struct {
Name string
Mail string
}
// File represents a single file and it's the user that is making the change
type File struct {
Content string
Path string
SHA string
}
// Config represents the configuration of a git service
type Config struct {
Organization string
Type string
ServerURL string
SSLNoVerify bool
Token string
}
// GitHub represents a GitHub client
type GitHub struct {
client *github.Client
org string
}
// GitLab represents a GitLab client
type GitLab struct {
client *gitlab.Client
group string
token string
}
// NewGitClient returns either a GitHub or GitLab client as Git interface
func NewGitClient(c *Config) (Git, error) {
switch c.Type {
case "github":
return newGitHubClient(c)
case "gitlab":
return newGitLabClient(c)
default:
return nil, fmt.Errorf("Unknown Git type: %q", c.Type)
}
}
func newGitHubClient(c *Config) (Git, error) {
client := &http.Client{
Transport: &oauth2.Transport{
Source: oauth2.StaticTokenSource(&oauth2.Token{AccessToken: c.Token}),
},
}
if c.SSLNoVerify {
client.Transport.(*oauth2.Transport).Base = insecureTransport
}
g := new(GitHub)
g.client = github.NewClient(client)
if c.ServerURL != "" {
// Make sure the URL ends with a single forward slash as the go-github package requires that
u, err := url.Parse(strings.Trim(c.ServerURL, "/") + "/")
if err != nil {
return nil, fmt.Errorf("Failed to parse Github server URL %s: %s", c.ServerURL, err)
}
g.client.BaseURL = u
}
g.org = c.Organization
return g, nil
}
func newGitLabClient(c *Config) (Git, error) {
client := http.DefaultClient
if c.SSLNoVerify {
client = &http.Client{Transport: insecureTransport}
}
g := &GitLab{token: c.Token}
g.client = gitlab.NewClient(client, c.Token)
if c.ServerURL != "" {
if err := g.client.SetBaseURL(c.ServerURL); err != nil {
return nil, err
}
}
g.group = c.Organization
return g, nil
}