util

package
v1.2.6 Latest Latest
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 Go to latest Published: Aug 31, 2020 License: Apache-2.0 Imports: 41 Imported by: 0

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Constants

View Source 
const (
	HTTPRequestTimeout    = 30 * time.Second // HTTPRequestTimeout configures timeout of all HTTP requests
	ResponseHeaderTimeout = 30 * time.Second // ResponseHeaderTimeout is the timeout to retrieve the server's response headers
	ModeReadWriteFile     = 0600             // default Permission for a file
	CredentialPrefix      = "odo-"           // CredentialPrefix is the prefix of the credential that uses to access secure registry
)
View Source 
const WIN = "windows"

WIN represent the windows OS

Variables

This section is empty.

Functions

func AddFileToIgnoreFile 

func AddFileToIgnoreFile(gitIgnoreFile, filename string) error

AddFileToIgnoreFile adds a file to the gitignore file. It only does that if the file doesn't exist

func AddOdoFileIndex 

func AddOdoFileIndex(gitIgnoreFile string) error

AddOdoFileIndex adds odo-file-index.json to .gitignore

func CalculateFileDataKeyFromPath 

func CalculateFileDataKeyFromPath(absolutePath string, rootDirectory string) (string, error)

CalculateFileDataKeyFromPath converts an absolute path to relative (and converts to OS-specific paths) for use as a map key in IndexerRet and FileIndex

func CaseInsensitive 

func CaseInsensitive(parameter string) func(word string) bool

CaseInsensitive returns a function which compares two words caseinsensitively

func CheckGitIgnoreFile 

func CheckGitIgnoreFile(directory string) (string, error)

CheckGitIgnoreFile checks .gitignore file exists or not, if not then create it

func CheckKubeConfigExist 

func CheckKubeConfigExist() bool

CheckKubeConfigExist checks for existence of kubeconfig

func CheckOutputFlag 

func CheckOutputFlag(outputFlag string) bool

CheckOutputFlag returns true if specified output format is supported

func CheckPathExists 

func CheckPathExists(path string) bool

CheckPathExists checks if a path exists or not

func ConvertGitSSHRemoteToHTTPS 

func ConvertGitSSHRemoteToHTTPS(remote string) string

Converts Git ssh remote to https

func ConvertKeyValueStringToMap 

func ConvertKeyValueStringToMap(params []string) map[string]string

ConvertKeyValueStringToMap converts String Slice of Parameters to a Map[String]string Each value of the slice is expected to be in the key=value format Values that do not conform to this "spec", will be ignored

func ConvertLabelsToSelector 

func ConvertLabelsToSelector(labels map[string]string) string

ConvertLabelsToSelector converts the given labels to selector

func CopyFile 

func CopyFile(srcPath string, dstPath string, info os.FileInfo) error

CopyFile copies file from source path to destination path

func CreateIfNotExists 

func CreateIfNotExists(configFile string) error

CreateIfNotExists creates the directory and the file if it doesn't exist

func DeleteConfiguration 

func DeleteConfiguration(info interface{}, parameter string) error

DeleteConfiguration sets a parameter to null in a struct using reflection

func DeleteIndexFile 

func DeleteIndexFile(directory string) error

DeleteIndexFile deletes the index file. It doesn't throw error if it doesn't exist

func DeletePath 

func DeletePath(path string) error

DeletePath deletes a file/directory if it exists and doesn't throw error if it doesn't exist

func DisplayLog 

func DisplayLog(followLog bool, rd io.ReadCloser, compName string) (err error)

DisplayLog displays logs to user stdout with some color formatting

func DownloadFile 

func DownloadFile(params DownloadParams) error

DownloadFile downloads the file to the filepath given URL and token (if applicable)

func DownloadFileInMemory 

func DownloadFileInMemory(url string) ([]byte, error)

DownloadFileInMemory uses the url to download the file and return bytes

func DownloadFileWithCache 

func DownloadFileWithCache(params DownloadParams, cacheFor int) error

DownloadFileWithCache downloads the file to the filepath given URL and token (if applicable) cacheFor determines how long the response should be cached (in minutes), 0 for no caching

func ExtractComponentType 

func ExtractComponentType(namespacedVersionedComponentType string) string

ExtractComponentType returns only component type part from passed component type(default unqualified, fully qualified, versioned, etc...and their combinations) for use as component name Possible types of parameters: 1. "myproject/python:3.5" -- Return python 2. "python:3.5" -- Return python 3. nodejs -- Return nodejs

func FilterIgnores 

func FilterIgnores(filesChanged, filesDeleted, absIgnoreRules []string) (filesChangedFiltered, filesDeletedFiltered []string)

FilterIgnores applies the glob rules on the filesChanged and filesDeleted and filters them returns the filtered results which match any of the glob rules

func GenFileURL 

func GenFileURL(location string, os ...string) string

GenFileURL Converts file path on windows to /C:/path/to/file to work in URL

func GenerateRandomString 

func GenerateRandomString(n int) string

GenerateRandomString generates a random string of lower case characters of the given size

func GetAbsGlobExps 

func GetAbsGlobExps(directory string, globExps []string) []string

GetAbsGlobExps converts the relative glob expressions into absolute glob expressions returns the absolute glob expressions

func GetAbsPath 

func GetAbsPath(path string) (string, error)

GetAbsPath returns absolute path from passed file path resolving even ~ to user home dir and any other such symbols that are only shell expanded can also be handled here

func GetAndExtractZip 

func GetAndExtractZip(zipURL string, destination string, pathToUnzip string) error

GetAndExtractZip downloads a zip file from a URL with a http prefix or takes an absolute path prefixed with file:// and extracts it to a destination. pathToUnzip specifies the path within the zip folder to extract

func GetBoolOrDefault 

func GetBoolOrDefault(ptr *bool, defaultValue bool) bool

func GetContainerPortsFromStrings 

func GetContainerPortsFromStrings(ports []string) ([]corev1.ContainerPort, error)

GetContainerPortsFromStrings generates ContainerPort values from the array of string port values ports is the array containing the string port values

func GetDNS1123Name 

func GetDNS1123Name(str string) string

GetDNS1123Name Converts passed string into DNS-1123 string

func GetFromFile 

func GetFromFile(c interface{}, filename string) error

GetFromFile unmarshals a struct from a odo config file

func GetGitHubZipURL 

func GetGitHubZipURL(repoURL string, branch string, startPoint string) (string, error)

GetGitHubZipURL downloads a repo from a URL to a destination

func GetHostWithPort 

func GetHostWithPort(inputURL string) (string, error)

GetHostWithPort parses provided url and returns string formated as host:port even if port was not specifically specified in the origin url. If port is not specified, standart port corresponding to url schema is provided. example: for url https://example.com function will return "example.com:443" 

for url https://example.com:8443 function will return "example:8443"

func GetIgnoreRulesFromDirectory 

func GetIgnoreRulesFromDirectory(directory string) ([]string, error)

GetIgnoreRulesFromDirectory reads the .odoignore file, if present, and reads the rules from it if the .odoignore file is not found, then .gitignore is searched for the rules if both are not found, return empty array directory is the name of the directory to look into for either of the files rules is the array of rules (in string form)

func GetIntOrDefault 

func GetIntOrDefault(ptr *int, defaultValue int) int

func GetLowerCaseParameters 

func GetLowerCaseParameters(parameters []string) map[string]bool

GetLowerCaseParameters creates a set-like map of supported parameters from the supported parameter names

func GetRandomName 

func GetRandomName(prefix string, prefixMaxLen int, existList []string, retries int) (string, error)

GetRandomName returns a randomly generated name which can be used for naming odo and/or openshift entities prefix: Desired prefix part of the name prefixMaxLen: Desired maximum length of prefix part of random name; if -1 is passed, no limit on length will be enforced existList: List to verify that the returned name does not already exist retries: number of retries to try generating a unique name Returns:

  1. randomname: is prefix-suffix, where: prefix: string passed as prefix or fetched current directory of length same as the passed prefixMaxLen suffix: 4 char random string
  2. error: if requested number of retries also failed to generate unique name

func GetRemoteFilesMarkedForDeletion 

func GetRemoteFilesMarkedForDeletion(delSrcRelPaths []string, remoteFolder string) []string

GetRemoteFilesMarkedForDeletion returns the list of remote files marked for deletion

func GetSortedKeys 

func GetSortedKeys(mapping map[string]string) []string

GetSortedKeys retrieves the alphabetically-sorted keys of the specified map

func GetSplitValuesFromStr 

func GetSplitValuesFromStr(inputStr string) []string

GetSplitValuesFromStr returns a slice containing the split string, using ',' as a separator

func GetStringOrDefault 

func GetStringOrDefault(ptr *string, defaultValue string) string

func GetStringOrEmpty 

func GetStringOrEmpty(ptr *string) string

func HTTPGetFreePort 

func HTTPGetFreePort() (int, error)

HTTPGetFreePort gets a free port from the system

func HTTPGetRequest 

func HTTPGetRequest(request HTTPRequestParams, cacheFor int) ([]byte, error)

HTTPGetRequest gets resource contents given URL and token (if applicable) cacheFor determines how long the response should be cached (in minutes), 0 for no caching

func In 

func In(arr []string, value string) bool

In checks if the value is in the array

func IsEmpty 

func IsEmpty(name string) (bool, error)

IsEmpty checks to see if a directory is empty shamelessly taken from: https://stackoverflow.com/questions/30697324/how-to-check-if-directory-on-path-is-empty this helps detect any edge cases where an empty directory is copied over

func IsGlobExpMatch 

func IsGlobExpMatch(strToMatch string, globExps []string) (bool, error)

IsGlobExpMatch compiles strToMatch against each of the passed globExps Parameters: strToMatch : a string for matching against the rules globExps : a list of glob patterns to match strToMatch with Returns: true if there is any match else false the error (if any) Notes: Source as well as glob expression to match is changed to forward slashes due to supporting Windows as well as support with the "github.com/gobwas/glob" library that we use.

func IsSet 

func IsSet(info interface{}, parameter string) bool

IsSet uses reflection to check if a parameter is set in a struct using the name in a case insensitive manner only supports flat structs TODO: support deeper struct using recursion

func IsValidProjectDir 

func IsValidProjectDir(path string, devfilePath string) error

IsValidProjectDir checks that the folder to download the project from devfile is either empty or only contains the devfile used.

func NamespaceOpenShiftObject 

func NamespaceOpenShiftObject(componentName string, applicationName string) (string, error)

NamespaceOpenShiftObject hyphenates applicationName and componentName

func OpenBrowser 

func OpenBrowser(url string) error

OpenBrowser opens the URL within the users default browser

func ParseComponentImageName 

func ParseComponentImageName(imageName string) (string, string, string, string)

ParseComponentImageName returns 1. image name 2. component type i.e, builder image name 3. component name default value is component type else the user requested component name 4. component version which is by default latest else version passed with builder image name

func PathEqual 

func PathEqual(firstPath string, secondPath string) bool

PathEqual compare the paths to determine if they are equal

func ReadFilePath 

func ReadFilePath(u *url.URL, os string) string

ReadFilePath Reads file path form URL file:///C:/path/to/file to C:\path\to\file

func RemoveDuplicates 

func RemoveDuplicates(s []string) []string

RemoveDuplicates goes through a string slice and removes all duplicates. Reference: https://siongui.github.io/2018/04/14/go-remove-duplicates-from-slice-or-array/

func RemoveRelativePathFromFiles 

func RemoveRelativePathFromFiles(files []string, path string) ([]string, error)

RemoveRelativePathFromFiles removes a specified path from a list of files

func ResolveIndexFilePath 

func ResolveIndexFilePath(directory string) (string, error)

ResolveIndexFilePath resolves the filepath of the odo index file in the .odo folder

func SliceDifference 

func SliceDifference(s1 []string, s2 []string) []string

SliceDifference returns the values of s2 that do not exist in s1

func TruncateString 

func TruncateString(str string, maxLen int) string

TruncateString truncates passed string to given length Note: if -1 is passed, the original string is returned

func Unzip 

func Unzip(src, dest, pathToUnzip string) ([]string, error)

Unzip will decompress a zip archive, moving specified files and folders within the zip file (parameter 1) to an output directory (parameter 2) Source: https://golangcode.com/unzip-files-in-go/ pathToUnzip (parameter 3) is the path within the zip folder to extract

func ValidateFile 

func ValidateFile(filePath string) error

ValidateFile validates the file

func ValidateK8sResourceName 

func ValidateK8sResourceName(key string, value string) error

ValidateK8sResourceName sanitizes kubernetes resource name with the following requirements: - Contain at most 63 characters - Contain only lowercase alphanumeric characters or ‘-’ - Start with an alphanumeric character - End with an alphanumeric character - Must not contain all numeric values

func ValidateURL 

func ValidateURL(sourceURL string) error

ValidateURL validates the URL

func WriteFile 

func WriteFile(newFileMap map[string]FileData, resolvedPath string) error

WriteFile writes a file map to a file, the file map is given by newFileMap param and the file location is resolvedPath param

func WriteToFile 

func WriteToFile(c interface{}, filename string) error

WriteToFile marshals a struct to a file

Types

type ConcurrentTask 

type ConcurrentTask struct {
	ToRun func(errChannel chan error)
}

ConcurrentTask is a task to execute in a go-routine

type ConcurrentTasks 

type ConcurrentTasks struct {
	// contains filtered or unexported fields
}

ConcurrentTasks records tasks to be run concurrently with go-routines

func NewConcurrentTasks 

func NewConcurrentTasks(taskNumber int) *ConcurrentTasks

NewConcurrentTasks creates a new ConcurrentTasks instance, dimensioned to accept at least the specified number of tasks

func (*ConcurrentTasks) Add 

func (ct *ConcurrentTasks) Add(task ConcurrentTask)

Add adds the specified ConcurrentTask to the list of tasks to be run concurrently

func (*ConcurrentTasks) Run 

func (ct *ConcurrentTasks) Run() error

Run concurrently runs the added tasks failing on the first error Based on https://garrypolley.com/2016/02/10/golang-routines-errors/

type DownloadParams 

type DownloadParams struct {
	Request  HTTPRequestParams
	Filepath string
}

DownloadParams holds parameters of forming file download request

type FileData 

type FileData struct {
	Size             int64
	LastModifiedDate time.Time
}

func GenerateNewFileDataEntry 

func GenerateNewFileDataEntry(absolutePath string, rootDirectory string) (string, *FileData, error)

GenerateNewFileDataEntry creates a new FileData entry for use by IndexerRet and/or FileIndex

type FileIndex 

type FileIndex struct {
	metav1.TypeMeta
	Files map[string]FileData
}

FileIndex holds the file index used for storing local file state change

func NewFileIndex 

func NewFileIndex() *FileIndex

NewFileIndex returns a fileIndex

func ReadFileIndex 

func ReadFileIndex(filePath string) (*FileIndex, error)

ReadFileIndex tries to read the odo index file from the given location and returns the data from the file if no such file is present, it means the folder hasn't been walked and thus returns a empty list

type HTTPRequestParams 

type HTTPRequestParams struct {
	URL   string
	Token string
}

HTTPRequestParams holds parameters of forming http request

type IndexerRet 

type IndexerRet struct {
	FilesChanged []string
	FilesDeleted []string
	NewFileMap   map[string]FileData
	ResolvedPath string
}

IndexerRet is a struct that represent return value of RunIndexer function

func RunIndexer 

func RunIndexer(directory string, ignoreRules []string) (ret IndexerRet, err error)

RunIndexer walks the given directory and finds the files which have changed and which were deleted/renamed it reads the odo index file from the .odo folder if no such file is present, it means it's the first time the folder is being walked and thus returns a empty list after the walk, it stores the list of walked files with some information in a odo index file in the .odo folder The filemap stores the values as "relative filepath" => FileData but it the FilesChanged and filesDeleted are absolute paths to the files

type ResourceRequirementInfo 

type ResourceRequirementInfo struct {
	ResourceType corev1.ResourceName
	MinQty       resource.Quantity
	MaxQty       resource.Quantity
}

ResourceRequirementInfo holds resource quantity before transformation into its appropriate form in container spec

func FetchResourceQuantity 

func FetchResourceQuantity(resourceType corev1.ResourceName, min string, max string, request string) (*ResourceRequirementInfo, error)

FetchResourceQuantity takes passed min, max and requested resource quantities and returns min and max resource requests

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