// GetRemoteConfig fetches the contents of a remote github repository's
// configuration data as at a given revision
func (gRepoPoller *GithubRepositoryPoller) GetRemoteConfig(
projectFileRevision string) (projectConfig *model.Project, err error) {
// find the project configuration file for the given repository revision
projectRef := gRepoPoller.ProjectRef
projectFileURL := thirdparty.GetGithubFileURL(
projectRef.Owner,
projectRef.Repo,
projectRef.RemotePath,
projectFileRevision,
)
githubFile, err := thirdparty.GetGithubFile(
gRepoPoller.OauthToken,
projectFileURL,
)
if err != nil {
return nil, err
}
projectFileBytes, err := base64.StdEncoding.DecodeString(githubFile.Content)
if err != nil {
return nil, thirdparty.FileDecodeError{err.Error()}
}
projectConfig = &model.Project{}
err = model.LoadProjectInto(projectFileBytes, projectRef.Identifier, projectConfig)
if err != nil {
return nil, thirdparty.YAMLFormatError{err.Error()}
}
return projectConfig, nil
}
// GetPatchedProject creates and validates a project created by fetching latest commit information from GitHub
// and applying the patch to the latest remote configuration. The error returned can be a validation error.
func GetPatchedProject(p *patch.Patch, settings *evergreen.Settings) (*model.Project, error) {
if p.Version != "" {
return nil, fmt.Errorf("Patch %v already finalized", p.Version)
}
projectRef, err := model.FindOneProjectRef(p.Project)
if err != nil {
return nil, err
}
// try to get the remote project file data at the requested revision
var projectFileBytes []byte
projectFileURL := thirdparty.GetGithubFileURL(
projectRef.Owner,
projectRef.Repo,
projectRef.RemotePath,
p.Githash,
)
githubFile, err := thirdparty.GetGithubFile(settings.Credentials["github"], projectFileURL)
if err != nil {
// if the project file doesn't exist, but our patch includes a project file,
// we try to apply the diff and proceed.
if !(p.ConfigChanged(projectRef.RemotePath) && thirdparty.IsFileNotFound(err)) {
// return an error if the github error is network/auth-related or we aren't patching the config
return nil, fmt.Errorf("Could not get github file at %v: %v", projectFileURL, err)
}
} else {
// we successfully got the project file in base64, so we decode it
projectFileBytes, err = base64.StdEncoding.DecodeString(githubFile.Content)
if err != nil {
return nil, fmt.Errorf("Could not decode github file at %v: %v", projectFileURL, err)
}
}
project := &model.Project{}
if err = model.LoadProjectInto(projectFileBytes, projectRef.Identifier, project); err != nil {
return nil, err
}
// apply remote configuration patch if needed
if p.ConfigChanged(projectRef.RemotePath) {
project, err = model.MakePatchedConfig(p, projectRef.RemotePath, string(projectFileBytes))
if err != nil {
return nil, fmt.Errorf("Could not patch remote configuration file: %v", err)
}
// overwrite project fields with the project ref to disallow tracking a
// different project or doing other crazy things via config patches
errs := CheckProjectSyntax(project)
if len(errs) != 0 {
var message string
for _, err := range errs {
message += fmt.Sprintf("\n\t=> %v", err)
}
return nil, fmt.Errorf(message)
}
}
return project, nil
}
// GetPatchedProject creates and validates a project created by fetching latest commit information from GitHub
// and applying the patch to the latest remote configuration. The error returned can be a validation error.
func GetPatchedProject(p *patch.Patch, settings *evergreen.Settings) (*model.Project, error) {
if p.Version != "" {
return nil, fmt.Errorf("Patch %v already finalized", p.Version)
}
projectRef, err := model.FindOneProjectRef(p.Project)
if err != nil {
return nil, err
}
// get the remote file at the requested revision
projectFileURL := thirdparty.GetGithubFileURL(
projectRef.Owner,
projectRef.Repo,
projectRef.RemotePath,
p.Githash,
)
githubFile, err := thirdparty.GetGithubFile(
settings.Credentials["github"],
projectFileURL,
)
if err != nil {
return nil, fmt.Errorf("Could not get github file at %v: %v", projectFileURL, err)
}
projectFileBytes, err := base64.StdEncoding.DecodeString(githubFile.Content)
if err != nil {
return nil, fmt.Errorf("Could not decode github file at %v: %v", projectFileURL, err)
}
project := &model.Project{}
if err = model.LoadProjectInto(projectFileBytes, projectRef.Identifier, project); err != nil {
return nil, err
}
// apply remote configuration patch if needed
if p.ConfigChanged(projectRef.RemotePath) {
project, err = model.MakePatchedConfig(p, projectRef.RemotePath, string(projectFileBytes))
if err != nil {
return nil, fmt.Errorf("Could not patch remote configuration file: %v", err)
}
// overwrite project fields with the project ref to disallow tracking a
// different project or doing other crazy things via config patches
errs := CheckProjectSyntax(project)
if len(errs) != 0 {
var message string
for _, err := range errs {
message += fmt.Sprintf("\n\t=> %v", err)
}
return nil, fmt.Errorf(message)
}
}
return project, nil
}