build

Documentation

Index

• Variables
• func AddFile(a Archive, file string) error
• func AzureBlobstoreDelete(config AzureBlobstoreConfig, blobs []*container.BlobItem) error
• func AzureBlobstoreList(config AzureBlobstoreConfig) ([]*container.BlobItem, error)
• func AzureBlobstoreUpload(path string, name string, config AzureBlobstoreConfig) error
• func DiffHashes(a map[string][32]byte, b map[string][32]byte) []string
• func DownloadAndVerifyChecksums(csdb *ChecksumDB)
• func DownloadGo(csdb *ChecksumDB) string
• func ExtractArchive(archive string, dest string) error
• func FileExist(path string) bool
• func FindMainPackages(dir string) []string
• func HashFiles(files []string) (map[string][32]byte, error)
• func HashFolder(folder string, exlude []string) (map[string][32]byte, error)
• func MustRun(cmd *exec.Cmd)
• func MustRunCommand(cmd string, args ...string)
• func MustRunCommandWithOutput(cmd string, args ...string)
• func PGPKeyID(pgpkey string) (string, error)
• func PGPSignFile(input string, output string, pgpkey string) error
• func Render(templateFile, outputFile string, outputPerm os.FileMode, x interface{})
• func RenderString(templateContent, outputFile string, outputPerm os.FileMode, x interface{})
• func RunGit(args ...string) string
• func UploadSFTP(identityFile, host, dir string, files []string) error
• func Version(csdb *ChecksumDB, version string) (string, error)
• func WriteArchive(name string, files []string) (err error)
• type Archive
  • func NewArchive(file *os.File) (Archive, string)
  • func NewTarballArchive(w io.WriteCloser) Archive
  • func NewZipArchive(w io.WriteCloser) Archive
• type AzureBlobstoreConfig
• type ChecksumDB
  • func MustLoadChecksums(file string) *ChecksumDB
  • func (db *ChecksumDB) DownloadFile(url, dstPath string) error
  • func (db *ChecksumDB) Verify(path string) error
• type Environment
  • func Env() Environment
  • func LocalEnv() Environment
  • func (env Environment) String() string
• type GoToolchain
  • func (g *GoToolchain) Go(command string, args ...string) *exec.Cmd
• type TarballArchive
  • func (a *TarballArchive) Close() error
  • func (a *TarballArchive) Directory(name string) error
  • func (a *TarballArchive) Header(fi os.FileInfo) (io.Writer, error)
• type ZipArchive
  • func (a *ZipArchive) Close() error
  • func (a *ZipArchive) Directory(name string) error
  • func (a *ZipArchive) Header(fi os.FileInfo) (io.Writer, error)

Variables

var (
	// These flags override values in build env.
	GitCommitFlag     = flag.String("git-commit", "", `Overrides git commit hash embedded into executables`)
	GitBranchFlag     = flag.String("git-branch", "", `Overrides git branch being built`)
	GitTagFlag        = flag.String("git-tag", "", `Overrides git tag being built`)
	BuildnumFlag      = flag.String("buildnum", "", `Overrides CI build number`)
	PullRequestFlag   = flag.Bool("pull-request", false, `Overrides pull request status of the build`)
	CronJobFlag       = flag.Bool("cron-job", false, `Overrides cron job status of the build`)
	UbuntuVersionFlag = flag.String("ubuntu", "", `Sets the ubuntu version being built for`)
)

var DryRunFlag = flag.Bool("n", false, "dry run, don't execute commands")

Functions

func AddFile

func AddFile(a Archive, file string) error

AddFile appends an existing file to an archive.

func AzureBlobstoreDelete

func AzureBlobstoreDelete(config AzureBlobstoreConfig, blobs []*container.BlobItem) error

AzureBlobstoreDelete iterates over a list of files to delete and removes them from the blobstore.

func AzureBlobstoreList

func AzureBlobstoreList(config AzureBlobstoreConfig) ([]*container.BlobItem, error)

AzureBlobstoreList lists all the files contained within an azure blobstore.

func AzureBlobstoreUpload

func AzureBlobstoreUpload(path string, name string, config AzureBlobstoreConfig) error

AzureBlobstoreUpload uploads a local file to the Azure Blob Storage. Note, this method assumes a max file size of 64MB (Azure limitation). Larger files will need a multi API call approach implemented.

See: https://msdn.microsoft.com/en-us/library/azure/dd179451.aspx#Anchor_3

func DiffHashes

func DiffHashes(a map[string][32]byte, b map[string][32]byte) []string

DiffHashes compares two maps of file hashes and returns the changed files.

func DownloadAndVerifyChecksums

func DownloadAndVerifyChecksums(csdb *ChecksumDB)

DownloadAndVerifyChecksums downloads all files and checks that they match the checksum given in checksums.txt. This task can be used to sanity-check new checksums.

func DownloadGo

func DownloadGo(csdb *ChecksumDB) string

DownloadGo downloads the Go binary distribution and unpacks it into a temporary directory. It returns the GOROOT of the unpacked toolchain.

func ExtractArchive

func ExtractArchive(archive string, dest string) error

ExtractArchive unpacks a .zip or .tar.gz archive to the destination directory.

func FileExist

func FileExist(path string) bool

FileExist checks if a file exists at path.

func FindMainPackages

func FindMainPackages(dir string) []string

FindMainPackages finds all 'main' packages in the given directory and returns their package paths.

func HashFiles

func HashFiles(files []string) (map[string][32]byte, error)

HashFiles iterates the provided set of files, computing the hash of each.

func HashFolder

func HashFolder(folder string, exlude []string) (map[string][32]byte, error)

HashFolder iterates all files under the given directory, computing the hash of each.

func MustRun

func MustRun(cmd *exec.Cmd)

MustRun executes the given command and exits the host process for any error.

func MustRunCommand

func MustRunCommand(cmd string, args ...string)

func MustRunCommandWithOutput

func MustRunCommandWithOutput(cmd string, args ...string)

MustRunCommandWithOutput runs the given command, and ensures that some output will be printed while it runs. This is useful for CI builds where the process will be stopped when there is no output.

func PGPKeyID

func PGPKeyID(pgpkey string) (string, error)

PGPKeyID parses an armored key and returns the key ID.

func PGPSignFile

func PGPSignFile(input string, output string, pgpkey string) error

PGPSignFile parses a PGP private key from the specified string and creates a signature file into the output parameter of the input file.

Note, this method assumes a single key will be container in the pgpkey arg, furthermore that it is in armored format.

func Render

func Render(templateFile, outputFile string, outputPerm os.FileMode, x interface{})

Render renders the given template file into outputFile.

func RenderString

func RenderString(templateContent, outputFile string, outputPerm os.FileMode, x interface{})

RenderString renders the given template string into outputFile.

func RunGit

func RunGit(args ...string) string

RunGit runs a git subcommand and returns its output. The command must complete successfully.

func UploadSFTP

func UploadSFTP(identityFile, host, dir string, files []string) error

UploadSFTP uploads files to a remote host using the sftp command line tool. The destination host may be specified either as [user@]host: or as a URI in the form sftp://[user@]host[:port].

func Version

func Version(csdb *ChecksumDB, version string) (string, error)

Version returns the versions defined in the checksumdb.

func WriteArchive

func WriteArchive(name string, files []string) (err error)

WriteArchive creates an archive containing the given files.

Types

type Archive

type Archive interface {
	// Directory adds a new directory entry to the archive and sets the
	// directory for subsequent calls to Header.
	Directory(name string) error

	// Header adds a new file to the archive. The file is added to the directory
	// set by Directory. The content of the file must be written to the returned
	// writer.
	Header(os.FileInfo) (io.Writer, error)

	// Close flushes the archive and closes the underlying file.
	Close() error
}

func NewArchive

func NewArchive(file *os.File) (Archive, string)

func NewTarballArchive

func NewTarballArchive(w io.WriteCloser) Archive

func NewZipArchive

func NewZipArchive(w io.WriteCloser) Archive

type AzureBlobstoreConfig

type AzureBlobstoreConfig struct {
	Account   string // Account name to authorize API requests with
	Token     string // Access token for the above account
	Container string // Blob container to upload files into
}

AzureBlobstoreConfig is an authentication and configuration struct containing the data needed by the Azure SDK to interact with a specific container in the blobstore.

type ChecksumDB

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

ChecksumDB keeps file checksums.

func MustLoadChecksums

func MustLoadChecksums(file string) *ChecksumDB

MustLoadChecksums loads a file containing checksums.

func (*ChecksumDB) DownloadFile

func (db *ChecksumDB) DownloadFile(url, dstPath string) error

DownloadFile downloads a file and verifies its checksum.

func (*ChecksumDB) Verify

func (db *ChecksumDB) Verify(path string) error

Verify checks whether the given file is valid according to the checksum database.

type Environment

type Environment struct {
	CI                        bool
	Name                      string // name of the environment
	Repo                      string // name of GitHub repo
	Commit, Date, Branch, Tag string // Git info
	Buildnum                  string
	UbuntuVersion             string // Ubuntu version being built for
	IsPullRequest             bool
	IsCronJob                 bool
}

Environment contains metadata provided by the build environment.

func Env

func Env() Environment

Env returns metadata about the current CI environment, falling back to LocalEnv if not running on CI.

func LocalEnv

func LocalEnv() Environment

LocalEnv returns build environment metadata gathered from git.

func (Environment) String

func (env Environment) String() string

type GoToolchain

type GoToolchain struct {
	Root string // GOROOT

	// Cross-compilation variables. These are set when running the go tool.
	GOARCH string
	GOOS   string
	CC     string
}

func (*GoToolchain) Go

func (g *GoToolchain) Go(command string, args ...string) *exec.Cmd

Go creates an invocation of the go command.

type TarballArchive

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

func (*TarballArchive) Close

func (a *TarballArchive) Close() error

func (*TarballArchive) Directory

func (a *TarballArchive) Directory(name string) error

func (*TarballArchive) Header

func (a *TarballArchive) Header(fi os.FileInfo) (io.Writer, error)

type ZipArchive

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

func (*ZipArchive) Close

func (a *ZipArchive) Close() error

func (*ZipArchive) Directory

func (a *ZipArchive) Directory(name string) error

func (*ZipArchive) Header

func (a *ZipArchive) Header(fi os.FileInfo) (io.Writer, error)