func (mc *MockCommand) Execute(logger plugin.Logger,
pluginCom plugin.PluginCommunicator, conf *model.TaskConfig, stop chan bool) error {
resp, err := pluginCom.TaskGetJSON(fmt.Sprintf("blah/%s/%d", mc.Param1, mc.Param2))
if resp != nil {
defer resp.Body.Close()
}
if resp == nil {
return fmt.Errorf("Received nil HTTP response from api server")
}
jsonReply := map[string]string{}
err = util.ReadJSONInto(resp.Body, &jsonReply)
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK {
return fmt.Errorf("Got bad status code from API response: %v, body: %v", resp.StatusCode, jsonReply)
}
expectedEchoReply := fmt.Sprintf("%v/%v/%v", mc.Param1, mc.Param2, conf.Task.Id)
if jsonReply["echo"] != expectedEchoReply {
return fmt.Errorf("Wrong echo reply! Wanted %v, got %v", expectedEchoReply, jsonReply["echo"])
}
return nil
}
func (jgc *JSONHistoryCommand) Execute(log plugin.Logger, com plugin.PluginCommunicator, conf *model.TaskConfig, stop chan bool) error {
err := plugin.ExpandValues(jgc, conf.Expansions)
if err != nil {
return err
}
if jgc.File == "" {
return fmt.Errorf("'file' param must not be blank")
}
if jgc.DataName == "" {
return fmt.Errorf("'name' param must not be blank")
}
if jgc.TaskName == "" {
return fmt.Errorf("'task' param must not be blank")
}
if jgc.File != "" && !filepath.IsAbs(jgc.File) {
jgc.File = filepath.Join(conf.WorkDir, jgc.File)
}
endpoint := fmt.Sprintf("history/%s/%s", jgc.TaskName, jgc.DataName)
if jgc.Tags {
endpoint = fmt.Sprintf("tags/%s/%s", jgc.TaskName, jgc.DataName)
}
retriableGet := util.RetriableFunc(
func() error {
resp, err := com.TaskGetJSON(endpoint)
if resp != nil {
defer resp.Body.Close()
}
if err != nil {
//Some generic error trying to connect - try again
log.LogExecution(slogger.WARN, "Error connecting to API server: %v", err)
return util.RetriableError{err}
}
if resp.StatusCode == http.StatusOK {
jsonBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return err
}
return ioutil.WriteFile(jgc.File, jsonBytes, 0755)
}
if resp.StatusCode != http.StatusOK {
if resp.StatusCode == http.StatusNotFound {
return fmt.Errorf("No JSON data found")
}
return util.RetriableError{fmt.Errorf("unexpected status code %v", resp.StatusCode)}
}
return nil
},
)
_, err = util.Retry(retriableGet, 10, 3*time.Second)
return err
}
// getPatchContents() dereferences any patch files that are stored externally, fetching them from
// the API server, and setting them into the patch object.
func (gapc GitApplyPatchCommand) getPatchContents(conf *model.TaskConfig, com plugin.PluginCommunicator, log plugin.Logger, p *patch.Patch) error {
for i, patchPart := range p.Patches {
// If the patch isn't stored externally, no need to do anything.
if patchPart.PatchSet.PatchFileId == "" {
continue
}
// otherwise, fetch the contents and load it into the patch object
log.LogExecution(slogger.INFO, "Fetching patch contents for %v", patchPart.PatchSet.PatchFileId)
var result []byte
retriableGet := util.RetriableFunc(
func() error {
resp, err := com.TaskGetJSON(fmt.Sprintf("%s/%s", GitPatchFilePath, patchPart.PatchSet.PatchFileId))
if resp != nil {
defer resp.Body.Close()
}
if err != nil {
//Some generic error trying to connect - try again
log.LogExecution(slogger.WARN, "Error connecting to API server: %v", err)
return util.RetriableError{err}
}
if resp != nil && resp.StatusCode != http.StatusOK {
log.LogExecution(slogger.WARN, "Unexpected status code %v, retrying", resp.StatusCode)
resp.Body.Close()
return util.RetriableError{fmt.Errorf("Unexpected status code %v", resp.StatusCode)}
}
result, err = ioutil.ReadAll(resp.Body)
if err != nil {
return err
}
return nil
})
_, err := util.RetryArithmeticBackoff(retriableGet, 5, 5*time.Second)
if err != nil {
return err
}
p.Patches[i].PatchSet.Patch = string(result)
}
return nil
}
// Load performs a GET on /manifest/load
func (mfc *ManifestLoadCommand) Load(log plugin.Logger, pluginCom plugin.PluginCommunicator, conf *model.TaskConfig) error {
var loadedManifest *manifest.Manifest
var err error
retriableGet := util.RetriableFunc(
func() error {
resp, err := pluginCom.TaskGetJSON(ManifestLoadAPIEndpoint)
if resp != nil {
defer resp.Body.Close()
}
if err != nil {
//Some generic error trying to connect - try again
log.LogExecution(slogger.WARN, "Error connecting to API server: %v", err)
return util.RetriableError{err}
}
if resp != nil && resp.StatusCode != http.StatusOK {
log.LogExecution(slogger.WARN, "Unexpected status code %v, retrying", resp.StatusCode)
return util.RetriableError{fmt.Errorf("Unexpected status code %v", resp.StatusCode)}
}
err = util.ReadJSONInto(resp.Body, &loadedManifest)
if err != nil {
return err
}
return nil
})
_, err = util.RetryArithmeticBackoff(retriableGet, 5, 5*time.Second)
if err != nil {
return err
}
if loadedManifest == nil {
return fmt.Errorf("Manifest is empty")
}
mfc.updateExpansions(loadedManifest, conf)
return nil
}
// GetPatch tries to get the patch data from the server in json format,
// and unmarhals it into a patch struct. The GET request is attempted
// multiple times upon failure.
func (gapc GitApplyPatchCommand) GetPatch(conf *model.TaskConfig,
pluginCom plugin.PluginCommunicator, pluginLogger plugin.Logger) (*patch.Patch, error) {
patch := &patch.Patch{}
retriableGet := util.RetriableFunc(
func() error {
resp, err := pluginCom.TaskGetJSON(GitPatchPath)
if resp != nil {
defer resp.Body.Close()
}
if err != nil {
//Some generic error trying to connect - try again
pluginLogger.LogExecution(slogger.WARN, "Error connecting to API server: %v", err)
return util.RetriableError{err}
}
if resp != nil && resp.StatusCode == http.StatusNotFound {
//nothing broke, but no patch was found for task Id - no retry
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
pluginLogger.LogExecution(slogger.ERROR, "Error reading response body")
}
msg := fmt.Sprintf("no patch found for task: %v", string(body))
pluginLogger.LogExecution(slogger.WARN, msg)
return fmt.Errorf(msg)
}
if resp != nil && resp.StatusCode == http.StatusInternalServerError {
//something went wrong in api server
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
pluginLogger.LogExecution(slogger.ERROR, "Error reading response body")
}
msg := fmt.Sprintf("error fetching patch from server: %v", string(body))
pluginLogger.LogExecution(slogger.WARN, msg)
return util.RetriableError{
fmt.Errorf(msg),
}
}
if resp != nil && resp.StatusCode == http.StatusConflict {
//wrong secret
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
pluginLogger.LogExecution(slogger.ERROR, "Error reading response body")
}
msg := fmt.Sprintf("secret conflict: %v", string(body))
pluginLogger.LogExecution(slogger.ERROR, msg)
return fmt.Errorf(msg)
}
if resp == nil {
pluginLogger.LogExecution(slogger.WARN, "Empty response from API server")
return util.RetriableError{fmt.Errorf("empty response")}
} else {
err = util.ReadJSONInto(resp.Body, patch)
if err != nil {
pluginLogger.LogExecution(slogger.ERROR,
"Error reading json into patch struct: %v", err)
return util.RetriableError{err}
}
return nil
}
},
)
retryFail, err := util.RetryArithmeticBackoff(retriableGet, 5, 5*time.Second)
if retryFail {
return nil, fmt.Errorf("getting patch failed after %v tries: %v", 10, err)
}
if err != nil {
return nil, fmt.Errorf("getting patch failed: %v", err)
}
return patch, nil
}
