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package gitlab
import (
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"bytes"
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"context"
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"encoding/json"
"errors"
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"fmt"
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"io"
"net/http"
"os/exec"
"regexp"
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"strconv"
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"strings"
"text/template"
"time"
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"github.com/go-git/go-git/v5"
gitconfig "github.com/go-git/go-git/v5/config"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/object"
httpauth "github.com/go-git/go-git/v5/plumbing/transport/http"
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"go.unistack.org/micro/v3/logger"
"go.unistack.org/pkgdash/internal/configcli"
"go.unistack.org/pkgdash/internal/modules"
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)
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var ErrPRNotExist = errors . New ( "pull request does not exist" )
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type Gitlab struct {
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logger logger . Logger
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URL string
Username string
Password string
PRTitle string
PRBody string
Repository string
RepositoryId string
Owner string
pulls [ ] * gitlabPull
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baseRef * plumbing . Reference
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}
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func NewGitlab ( cfg configcli . Config , log logger . Logger ) * Gitlab {
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return & Gitlab {
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logger : log ,
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URL : cfg . Source . APIURL ,
Username : cfg . Source . Username ,
Password : cfg . Source . Password ,
PRTitle : cfg . PullRequestTitle ,
PRBody : cfg . PullRequestBody ,
Repository : cfg . Source . Repository ,
Owner : cfg . Source . Owner ,
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}
}
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type gitlabPull struct {
URL string ` json:"web_url" `
Title string ` json:"title" `
Target string ` json:"target_branch" `
Source string ` json:"source_branch" `
ID int64 ` json:"id" `
}
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type gitlabProject struct {
Id int64 ` json:"id" `
Name string ` json:"name" `
}
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func ( g * Gitlab ) Name ( ) string {
return "gitlab"
}
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func ( g * Gitlab ) RequestOpen ( ctx context . Context , branch string , path string , mod modules . Update ) error {
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g . logger . Debug ( ctx , fmt . Sprintf ( "RequestOpen start, mod title: %s" , path ) )
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var buf [ ] byte
var err error
// создания шаблона названия для пулл реквеста
tplTitle , err := template . New ( "pull_request_title" ) . Parse ( g . PRTitle )
if err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to parse template: %v" , err ) )
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}
wTitle := bytes . NewBuffer ( nil )
// создания шаблона тела для пулл реквеста
tplBody , err := template . New ( "pull_request_body" ) . Parse ( g . PRTitle )
if err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to parse template: %v" , err ) )
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}
wBody := bytes . NewBuffer ( nil )
data := map [ string ] string {
"Name" : path ,
"VersionOld" : mod . Module . Version ,
"VersionNew" : mod . Version ,
}
if err = tplTitle . Execute ( wTitle , data ) ; err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to execute template: %v" , err ) )
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}
if err = tplBody . Execute ( wBody , data ) ; err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to execute template: %v" , err ) )
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}
// открытие гит репозитория с опцией обхода репозитория для нахождения .git
repo , err := git . PlainOpenWithOptions ( "." , & git . PlainOpenOptions { DetectDotGit : true } )
if err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to open repo: %v" , err ) )
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}
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// извлекаем ссылки с объектами из удаленного объекта??
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if err = repo . FetchContext ( ctx , & git . FetchOptions {
// Auth: &httpauth.BasicAuth{Username: g.Username, Password: g.Password},
Force : true ,
} ) ; err != nil && err != git . NoErrAlreadyUpToDate {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to fetch repo : %v" , err ) )
} // обновляем репозиторий
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var headRef * plumbing . Reference // вроде ссылка на гит
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if g . baseRef == nil {
g . baseRef , err = repo . Head ( )
if err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "Error head: %s" , err ) )
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}
}
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refIter , err := repo . Branches ( ) // получение веток
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if err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to get branches: %v" , err ) )
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}
for {
ref , err := refIter . Next ( )
if err != nil {
break
}
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if ref . Name ( ) . Short ( ) == branch { // todo вот тут возможно нужно переделать
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headRef = ref
break
}
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} // перебираем получение ветки и когда находим нужную выходим из цикла записав ветку в headRef
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refIter . Close ( )
if headRef == nil {
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g . logger . Fatal ( ctx , "failed to get repo branch head" )
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return err
} // Н е получили нужную ветку
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g . logger . Info ( ctx , fmt . Sprintf ( "repo head %s" , headRef ) )
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wtree , err := repo . Worktree ( ) // todo вроде рабочее дерево не нужно
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if err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to get worktree: %v" , err ) )
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}
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defer g . checkout ( * wtree , * g . baseRef )
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g . pulls , err = g . GetPulls ( ctx , g . URL , g . RepositoryId , branch , g . Password )
if err != nil && err != ErrPRNotExist {
g . logger . Error ( ctx , fmt . Sprintf ( "GetPulls error: %s" , err ) )
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return err
}
for _ , pull := range g . pulls {
if strings . Contains ( pull . Title , path ) {
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g . logger . Info ( ctx , fmt . Sprintf ( "PR for %s exists %s, call RequestUpdate" , path , pull . URL ) )
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return g . RequestUpdate ( ctx , branch , path , mod )
} // хотим проверить есть ли пулл реквест для этой ветки, если есть то выходим
}
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g . logger . Info ( ctx , fmt . Sprintf ( "update %s from %s to %s" , path , mod . Module . Version , mod . Version ) )
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sourceBranch := fmt . Sprintf ( "pkgdash/go_modules/%s-%s" , path , mod . Version )
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g . logger . Info ( ctx , "reset worktree" )
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if err = wtree . Reset ( & git . ResetOptions { Commit : headRef . Hash ( ) , Mode : git . HardReset } ) ; err != nil {
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g . logger . Error ( ctx , fmt . Sprintf ( "failed to reset repo branch: %v" , err ) )
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}
if err = wtree . PullContext ( ctx , & git . PullOptions {
Auth : & httpauth . BasicAuth { Username : g . Username , Password : g . Password } ,
Depth : 1 ,
// RemoteURL :
Force : true ,
RemoteName : "origin" ,
} ) ; err != nil && err != git . NoErrAlreadyUpToDate {
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g . logger . Error ( ctx , fmt . Sprintf ( "failed to pull repo: %v" , err ) ) // подтягиваем изменения с удаленого репозитория
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}
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g . logger . Info ( ctx , fmt . Sprintf ( "checkout ref %s" , headRef ) )
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if err = wtree . Checkout ( & git . CheckoutOptions {
Hash : headRef . Hash ( ) ,
Branch : plumbing . NewBranchReferenceName ( sourceBranch ) ,
Create : true ,
Force : true ,
} ) ; err != nil {
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g . logger . Error ( ctx , fmt . Sprintf ( "failed to checkout tree: %v" , err ) )
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return err
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} // создаем новую ветку
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epath , err := exec . LookPath ( "go" )
if errors . Is ( err , exec . ErrDot ) {
err = nil
}
if err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to find go command: %v" , err ) )
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} // ищем go файл
var cmd * exec . Cmd
var out [ ] byte
cmd = exec . CommandContext ( ctx , epath , "mod" , "edit" , fmt . Sprintf ( "-droprequire=%s" , mod . Module . Path ) )
if out , err = cmd . CombinedOutput ( ) ; err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to run go mod edit: %s err: %v" , out , err ) )
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}
cmd = exec . CommandContext ( ctx , epath , "mod" , "edit" , fmt . Sprintf ( "-require=%s@%s" , path , mod . Version ) )
if out , err = cmd . CombinedOutput ( ) ; err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to run go mod edit: %s err: %v" , out , err ) )
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} // пытаемся выполнить команду go mod edit с новой версией модуля
cmd = exec . CommandContext ( ctx , epath , "mod" , "tidy" )
if out , err = cmd . CombinedOutput ( ) ; err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to run go mod tidy: %s err: %v" , out , err ) )
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} // пытаемся выполнить команду go mod tidy пытаемся подтянуть новую версию модуля
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g . logger . Info ( ctx , "worktree add go.mod" )
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if _ , err = wtree . Add ( "go.mod" ) ; err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to add file: %v" , err ) )
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}
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g . logger . Info ( ctx , "worktree add go.sum" )
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if _ , err = wtree . Add ( "go.sum" ) ; err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to add file: %v" , err ) )
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}
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g . logger . Info ( ctx , "worktree commit" )
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_ , err = wtree . Commit ( wTitle . String ( ) , & git . CommitOptions {
Parents : [ ] plumbing . Hash { headRef . Hash ( ) } ,
Author : & object . Signature {
Name : "gitea-actions" ,
Email : "info@unistack.org" ,
When : time . Now ( ) ,
} ,
} ) // хотим за коммитить изменения
if err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to commit: %v" , err ) )
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}
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refspec := gitconfig . RefSpec ( fmt . Sprintf ( "+refs/heads/pkgdash/go_modules/%s-%s:refs/heads/pkgdash/go_modules/%s-%s" , path , mod . Version , path , mod . Version ) ) // todo как будто нужно переделать
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g . logger . Info ( ctx , fmt . Sprintf ( "try to push refspec %s" , refspec ) )
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if err = repo . PushContext ( ctx , & git . PushOptions {
RefSpecs : [ ] gitconfig . RefSpec { refspec } ,
Auth : & httpauth . BasicAuth { Username : g . Username , Password : g . Password } ,
Force : true ,
} ) ; err != nil {
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g . logger . Fatal ( ctx , fmt . Sprintf ( "failed to push repo branch: %v" , err ) )
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} // пытаемся за пушить изменения
body := map [ string ] string {
"id" : g . RepositoryId ,
"source_branch" : sourceBranch ,
"target_branch" : branch ,
"title" : wTitle . String ( ) ,
"description" : wBody . String ( ) ,
}
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g . logger . Info ( ctx , fmt . Sprintf ( "raw body: %#+v" , body ) )
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buf , err = json . Marshal ( body )
if err != nil {
return err
}
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g . logger . Info ( ctx , fmt . Sprintf ( "marshal body: %s" , buf ) )
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req , err := http . NewRequestWithContext (
ctx ,
http . MethodPost ,
fmt . Sprintf ( "https://%s/api/v4/projects/%s/merge_requests" , g . URL , g . RepositoryId ) ,
bytes . NewReader ( buf ) ,
)
if err != nil {
return err
}
req . Header . Add ( "Accept" , "application/json" )
req . Header . Add ( "Content-Type" , "application/json" )
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req . Header . Add ( "Authorization" , "Bearer " + g . Password )
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rsp , err := http . DefaultClient . Do ( req )
if err != nil {
return err
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} // Вроде создаем новый реквест на создание пулл реквеста
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if rsp . StatusCode != http . StatusCreated {
buf , _ = io . ReadAll ( rsp . Body )
return fmt . Errorf ( "unknown error: %s" , buf )
}
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g . logger . Info ( ctx , fmt . Sprintf ( "PR create for %s-%s" , path , mod . Version ) )
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return nil
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}
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func ( g * Gitlab ) RequestClose ( ctx context . Context , branch string , path string ) error {
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g . logger . Debug ( ctx , fmt . Sprintf ( "RequestClose start, mod title: %s" , path ) )
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var err error
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g . pulls , err = g . GetPulls ( ctx , g . URL , g . RepositoryId , branch , g . Password )
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if err != nil {
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g . logger . Error ( ctx , fmt . Sprintf ( "GetPulls error: %s" , err ) )
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return err
}
prExist := false
var b string // Name of the branch to be deleted
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for _ , pull := range g . pulls {
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if strings . Contains ( pull . Title , path ) {
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g . logger . Info ( ctx , fmt . Sprintf ( "PR for %s exists: %s" , path , pull . URL ) )
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prExist = true
b = pull . Source
}
}
if ! prExist {
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g . logger . Error ( ctx , fmt . Sprintf ( "skip %s since pr does not exist" , path ) )
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return ErrPRNotExist
}
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req , err := g . DeleteBranch ( ctx , g . URL , g . RepositoryId , b , g . Password )
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if err != nil {
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g . logger . Error ( ctx , fmt . Sprintf ( "failed to create request for delete the branch: %s, err: %s" , branch , err ) )
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return err
}
rsp , err := http . DefaultClient . Do ( req )
if err != nil {
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g . logger . Error ( ctx , fmt . Sprintf ( "failed to do request for delete the branch: %s, err: %s, code: %v" , branch , err , rsp . StatusCode ) )
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return err
}
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g . logger . Info ( ctx , fmt . Sprintf ( "Delete branch for %s successful" , path ) )
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return nil
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}
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func ( g * Gitlab ) RequestUpdate ( ctx context . Context , branch string , path string , mod modules . Update ) error {
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g . logger . Debug ( ctx , fmt . Sprintf ( "RequestUpdate start, mod title: %s" , path ) )
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var err error
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g . RepositoryId , err = g . GetRepoID ( ctx , g . URL , g . Owner , g . Repository , g . Password )
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if err != nil || g . RepositoryId == "" {
return fmt . Errorf ( "project id is empty" )
}
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g . pulls , err = g . GetPulls ( ctx , g . URL , g . RepositoryId , branch , g . Password )
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if err != nil {
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g . logger . Error ( ctx , fmt . Sprintf ( "GetPulls error: %s" , err ) )
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return err
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}
prExist := false
for _ , pull := range g . pulls {
if strings . Contains ( pull . Title , path ) {
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g . logger . Info ( ctx , fmt . Sprintf ( "don't skip %s since pr exist %s" , path , pull . URL ) ) // todo
tVersion := getVersions ( pull . Source ) // Надо взять просто из названия ветки последнюю версию
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if modules . IsNewerVersion ( tVersion , mod . Version , false ) {
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reqDel , err := g . DeleteBranch ( ctx , g . URL , g . RepositoryId , pull . Source , g . Password )
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if err != nil {
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g . logger . Error ( ctx , fmt . Sprintf ( "Error with create request for branch: %s, err: %s" , branch , err ) )
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return err
}
rsp , err := http . DefaultClient . Do ( reqDel )
if err != nil {
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g . logger . Error ( ctx , fmt . Sprintf ( "Error with do request for branch: %s, err: %s, code: %v" , branch , err , rsp . StatusCode ) )
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return err
}
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g . logger . Info ( ctx , fmt . Sprintf ( "Old pr %s successful delete" , pull . Source ) )
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} else {
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g . logger . Debug ( ctx , "The existing PR is relevant" )
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return nil
}
prExist = true
}
}
if ! prExist {
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g . logger . Error ( ctx , fmt . Sprintf ( "skip %s since pr does not exist" , path ) )
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return ErrPRNotExist
}
return g . RequestOpen ( ctx , branch , path , mod ) // todo это мне не нравится
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}
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func ( g * Gitlab ) RequestList ( ctx context . Context , branch string ) ( map [ string ] string , error ) {
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g . logger . Debug ( ctx , fmt . Sprintf ( "RequestList for %s" , branch ) )
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var err error
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g . RepositoryId , err = g . GetRepoID ( ctx , g . URL , g . Owner , g . Repository , g . Password )
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if err != nil || g . RepositoryId == "" {
return nil , fmt . Errorf ( "project id is empty" )
}
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g . pulls , err = g . GetPulls ( ctx , g . URL , g . RepositoryId , branch , g . Password )
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if err != nil {
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g . logger . Error ( ctx , fmt . Sprintf ( "GetPulls error: %s" , err ) )
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return nil , err
}
var path string
rMap := make ( map [ string ] string )
for _ , pull := range g . pulls {
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if ! strings . HasPrefix ( pull . Title , "Bump " ) { // добавляем только реквесты бота по обновлению модулей
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continue
}
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path = strings . Split ( pull . Title , " " ) [ 1 ] // todo Работет только для дефолтного шаблона
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rMap [ path ] = pull . Title
}
return rMap , nil
}
func getVersions ( s string ) string {
re := regexp . MustCompile ( "[vV][0-9]+\\.[0-9]+\\.[0-9]+" )
version := re . FindString ( s )
return version
}
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func ( g * Gitlab ) DeleteBranch ( ctx context . Context , url , projectId , branch , password string ) ( * http . Request , error ) {
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var buf [ ] byte
req , err := http . NewRequestWithContext ( ctx , http . MethodDelete , fmt . Sprintf ( "https://%s/api/v4/projects/%s/repository/branches/%s" , url , projectId , branch ) , bytes . NewReader ( buf ) )
if err != nil {
return nil , err
}
req . Header . Add ( "Accept" , "application/json" )
req . Header . Add ( "Content-Type" , "application/json" )
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req . Header . Add ( "Authorization" , "Bearer " + password )
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return req , err
}
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func ( g * Gitlab ) GetPulls ( ctx context . Context , url , projectId , branch , password string ) ( [ ] * gitlabPull , error ) {
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pulls := make ( [ ] * gitlabPull , 0 , 10 )
req , err := http . NewRequestWithContext (
ctx ,
http . MethodGet ,
fmt . Sprintf ( "https://%s/api/v4/projects/%s/merge_requests?state=opened&target_branch=%s" , url , projectId , branch ) ,
nil )
if err != nil {
return nil , err
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} // вроде запроса к репозиторию
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req . Header . Add ( "Accept" , "application/json" )
req . Header . Add ( "Content-Type" , "application/json" )
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req . Header . Add ( "Authorization" , "Bearer " + password )
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rsp , err := http . DefaultClient . Do ( req ) // выполнение запроса
if err != nil {
return nil , err
}
buf , _ := io . ReadAll ( rsp . Body )
switch rsp . StatusCode {
case http . StatusOK :
if err = json . Unmarshal ( buf , & pulls ) ; err != nil {
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g . logger . Error ( ctx , fmt . Sprintf ( "failed to decode response %s err: %v" , buf , err ) )
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return nil , err
}
return pulls , nil
case http . StatusNotFound :
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g . logger . Info ( ctx , fmt . Sprintf ( "pull-request is not exist for %s" , projectId ) )
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return nil , ErrPRNotExist
default :
return nil , fmt . Errorf ( "unknown error: %s" , buf )
}
}
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func ( g * Gitlab ) GetRepoID ( ctx context . Context , url , owner , repo , password string ) ( rId string , err error ) {
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var buf [ ] byte
projects := make ( [ ] * gitlabProject , 0 , 10 )
req , err := http . NewRequestWithContext ( ctx , http . MethodGet , fmt . Sprintf ( "https://%s/api/v4/users/%s/projects?owned=true" , url , owner ) , nil )
if err != nil {
return
}
req . Header . Add ( "Accept" , "application/json" )
req . Header . Add ( "Content-Type" , "application/json" )
req . Header . Add ( "Authorization" , password )
rsp , err := http . DefaultClient . Do ( req )
if err != nil {
return
}
buf , _ = io . ReadAll ( rsp . Body )
switch rsp . StatusCode {
case http . StatusOK :
if err = json . Unmarshal ( buf , & projects ) ; err != nil {
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g . logger . Error ( ctx , fmt . Sprintf ( "failed to decode response %s err: %v" , buf , err ) )
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}
for _ , p := range projects {
if p . Name == repo {
rId = strconv . Itoa ( int ( p . Id ) )
}
}
return
default :
return rId , fmt . Errorf ( "unknown error: %s" , buf )
}
}
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func ( g * Gitlab ) checkout ( w git . Worktree , ref plumbing . Reference ) {
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ctx := context . Background ( )
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g . logger . Debug ( ctx , fmt . Sprintf ( "Checkout: %s" , ref . Name ( ) . Short ( ) ) )
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if err := w . Checkout ( & git . CheckoutOptions {
Branch : ref . Name ( ) ,
Create : false ,
Force : true ,
Keep : false ,
} ) ; err != nil {
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g . logger . Error ( ctx , fmt . Sprintf ( "failed to reset: %v" , err ) )
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}
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}