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resolver.go
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resolver.go
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package glrepo
import (
"errors"
"sort"
"github.com/AlecAivazis/survey/v2"
"github.com/profclems/glab/internal/git"
"github.com/profclems/glab/pkg/api"
"github.com/xanzy/go-gitlab"
)
// cap the number of git remotes looked up, since the user might have an
// unusually large number of git remotes
const maxRemotesForLookup = 5
func ResolveRemotesToRepos(remotes Remotes, client *gitlab.Client, base string) (*ResolvedRemotes, error) {
sort.Stable(remotes)
result := &ResolvedRemotes{
remotes: remotes,
apiClient: client,
}
var baseOverride Interface
if base != "" {
var err error
baseOverride, err = FromFullName(base)
if err != nil {
return result, err
}
result.baseOverride = baseOverride
}
return result, nil
}
func resolveNetwork(result *ResolvedRemotes) error {
for _, r := range result.remotes {
networkResult, err := api.GetProject(result.apiClient, r.FullName())
if err == nil {
result.network = append(result.network, *networkResult)
}
if len(result.remotes) == maxRemotesForLookup {
break
}
}
return nil
}
type ResolvedRemotes struct {
baseOverride Interface
remotes Remotes
network []gitlab.Project
apiClient *gitlab.Client
}
func (r *ResolvedRemotes) BaseRepo(prompt bool) (Interface, error) {
if r.baseOverride != nil {
return r.baseOverride, nil
}
// if any of the remotes already has a resolution, respect that
for _, r := range r.remotes {
if r.Resolved == "base" {
return r, nil
} else if r.Resolved != "" {
repo, err := FromFullName(r.Resolved)
if err != nil {
return nil, err
}
return NewWithHost(repo.RepoOwner(), repo.RepoName(), r.RepoHost()), nil
}
}
if !prompt {
// we cannot prompt, so just resort to the 1st remote
return r.remotes[0], nil
}
// from here on, consult the API
if r.network == nil {
err := resolveNetwork(r)
if err != nil {
return nil, err
}
}
var repoNames []string
repoMap := map[string]*gitlab.Project{}
add := func(r *gitlab.Project) {
fn, _ := FullNameFromURL(r.HTTPURLToRepo)
if _, ok := repoMap[fn]; !ok {
repoMap[fn] = r
repoNames = append(repoNames, fn)
}
}
for _, repo := range r.network {
if repo.ForkedFromProject != nil {
fProject, _ := api.GetProject(r.apiClient, repo.ForkedFromProject.PathWithNamespace)
add(fProject)
}
add(&repo)
}
if len(repoNames) == 0 {
return r.remotes[0], nil
}
baseName := repoNames[0]
if len(repoNames) > 1 {
err := survey.AskOne(&survey.Select{
Message: "Which should be the base repository (used for e.g. querying issues) for this directory?",
Options: repoNames,
}, &baseName)
if err != nil {
return nil, err
}
}
// determine corresponding git remote
selectedRepo := repoMap[baseName]
selectedRepoInfo, _ := FromFullName(selectedRepo.HTTPURLToRepo)
resolution := "base"
remote, _ := r.RemoteForRepo(selectedRepoInfo)
if remote == nil {
remote = r.remotes[0]
resolution, _ = FullNameFromURL(selectedRepo.HTTPURLToRepo)
}
// cache the result to git config
err := git.SetRemoteResolution(remote.Name, resolution)
return selectedRepoInfo, err
}
func (r *ResolvedRemotes) HeadRepos() ([]*gitlab.Project, error) {
if r.network == nil {
err := resolveNetwork(r)
if err != nil {
return nil, err
}
}
var results []*gitlab.Project
for _, repo := range r.network {
results = append(results, &repo)
}
return results, nil
}
// RemoteForRepo finds the git remote that points to a repository
func (r *ResolvedRemotes) RemoteForRepo(repo Interface) (*Remote, error) {
for _, remote := range r.remotes {
if IsSame(remote, repo) {
return remote, nil
}
}
return nil, errors.New("not found")
}