config.go

// Package config contains the model and loader of the goreleaser configuration
// file.
package config

import (
	"io"
	"io/ioutil"
	"os"
	"strings"

	"github.com/apex/log"
	yaml "gopkg.in/yaml.v2"
)

// GitHubURLs holds the URLs to be used when using github enterprise.
type GitHubURLs struct {
	API           string `yaml:"api,omitempty"`
	Upload        string `yaml:"upload,omitempty"`
	Download      string `yaml:"download,omitempty"`
	SkipTLSVerify bool   `yaml:"skip_tls_verify,omitempty"`
}

// GitLabURLs holds the URLs to be used when using gitlab ce/enterprise.
type GitLabURLs struct {
	API           string `yaml:"api,omitempty"`
	Download      string `yaml:"download,omitempty"`
	SkipTLSVerify bool   `yaml:"skip_tls_verify,omitempty"`
}

// GiteaURLs holds the URLs to be used when using gitea.
type GiteaURLs struct {
	API           string `yaml:"api,omitempty"`
	SkipTLSVerify bool   `yaml:"skip_tls_verify,omitempty"`
}

// Repo represents any kind of repo (github, gitlab, etc).
// to upload releases into.
type Repo struct {
	Owner string `yaml:",omitempty"`
	Name  string `yaml:",omitempty"`
}

// RepoRef represents any kind of repo which may differ
// from the one we are building from and may therefore
// also require separate authentication
// e.g. Homebrew Tap, Scoop bucket.
type RepoRef struct {
	Owner string `yaml:",omitempty"`
	Name  string `yaml:",omitempty"`
	Token string `yaml:",omitempty"`
}

// HomebrewDependency represents Homebrew dependency.
type HomebrewDependency struct {
	Name string `yaml:",omitempty"`
	Type string `yaml:",omitempty"`
}

// type alias to prevent stack overflowing in the custom unmarshaler.
type homebrewDependency HomebrewDependency

// UnmarshalYAML is a custom unmarshaler that accept brew deps in both the old and new format.
func (a *HomebrewDependency) UnmarshalYAML(unmarshal func(interface{}) error) error {
	var str string
	if err := unmarshal(&str); err == nil {
		a.Name = str
		return nil
	}

	var dep homebrewDependency
	if err := unmarshal(&dep); err != nil {
		return err
	}

	a.Name = dep.Name
	a.Type = dep.Type

	return nil
}

// String of the repo, e.g. owner/name.
func (r Repo) String() string {
	if r.Owner == "" && r.Name == "" {
		return ""
	}
	return r.Owner + "/" + r.Name
}

// Homebrew contains the brew section.
type Homebrew struct {
	Name             string               `yaml:",omitempty"`
	Tap              RepoRef              `yaml:",omitempty"`
	CommitAuthor     CommitAuthor         `yaml:"commit_author,omitempty"`
	Folder           string               `yaml:",omitempty"`
	Caveats          string               `yaml:",omitempty"`
	Plist            string               `yaml:",omitempty"`
	Install          string               `yaml:",omitempty"`
	PostInstall      string               `yaml:"post_install,omitempty"`
	Dependencies     []HomebrewDependency `yaml:",omitempty"`
	Test             string               `yaml:",omitempty"`
	Conflicts        []string             `yaml:",omitempty"`
	Description      string               `yaml:",omitempty"`
	Homepage         string               `yaml:",omitempty"`
	SkipUpload       string               `yaml:"skip_upload,omitempty"`
	DownloadStrategy string               `yaml:"download_strategy,omitempty"`
	URLTemplate      string               `yaml:"url_template,omitempty"`
	CustomRequire    string               `yaml:"custom_require,omitempty"`
	CustomBlock      string               `yaml:"custom_block,omitempty"`
	IDs              []string             `yaml:"ids,omitempty"`
	Goarm            string               `yaml:"goarm,omitempty"`

	// Deprecated: in favour of Tap
	GitHub Repo `yaml:",omitempty"`
	GitLab Repo `yaml:",omitempty"`
}

// Scoop contains the scoop.sh section.
type Scoop struct {
	Name                  string       `yaml:",omitempty"`
	Bucket                RepoRef      `yaml:",omitempty"`
	CommitAuthor          CommitAuthor `yaml:"commit_author,omitempty"`
	CommitMessageTemplate string       `yaml:"commit_msg_template,omitempty"`
	Homepage              string       `yaml:",omitempty"`
	Description           string       `yaml:",omitempty"`
	License               string       `yaml:",omitempty"`
	URLTemplate           string       `yaml:"url_template,omitempty"`
	Persist               []string     `yaml:"persist,omitempty"`
	SkipUpload            string       `yaml:"skip_upload,omitempty"`
}

// CommitAuthor is the author of a Git commit.
type CommitAuthor struct {
	Name  string `yaml:",omitempty"`
	Email string `yaml:",omitempty"`
}

// Hooks define actions to run before and/or after something.
type Hooks struct {
	Pre  string `yaml:",omitempty"`
	Post string `yaml:",omitempty"`
}

// IgnoredBuild represents a build ignored by the user.
type IgnoredBuild struct {
	Goos, Goarch, Goarm, Gomips string
}

// StringArray is a wrapper for an array of strings.
type StringArray []string

// UnmarshalYAML is a custom unmarshaler that wraps strings in arrays.
func (a *StringArray) UnmarshalYAML(unmarshal func(interface{}) error) error {
	var strings []string
	if err := unmarshal(&strings); err != nil {
		var str string
		if err := unmarshal(&str); err != nil {
			return err
		}
		*a = []string{str}
	} else {
		*a = strings
	}
	return nil
}

// FlagArray is a wrapper for an array of strings.
type FlagArray []string

// UnmarshalYAML is a custom unmarshaler that wraps strings in arrays.
func (a *FlagArray) UnmarshalYAML(unmarshal func(interface{}) error) error {
	var flags []string
	if err := unmarshal(&flags); err != nil {
		var flagstr string
		if err := unmarshal(&flagstr); err != nil {
			return err
		}
		*a = strings.Fields(flagstr)
	} else {
		*a = flags
	}
	return nil
}

// Build contains the build configuration section.
type Build struct {
	ID           string         `yaml:",omitempty"`
	Goos         []string       `yaml:",omitempty"`
	Goarch       []string       `yaml:",omitempty"`
	Goarm        []string       `yaml:",omitempty"`
	Gomips       []string       `yaml:",omitempty"`
	Targets      []string       `yaml:",omitempty"`
	Ignore       []IgnoredBuild `yaml:",omitempty"`
	Dir          string         `yaml:",omitempty"`
	Main         string         `yaml:",omitempty"`
	Ldflags      StringArray    `yaml:",omitempty"`
	Flags        FlagArray      `yaml:",omitempty"`
	Binary       string         `yaml:",omitempty"`
	Hooks        HookConfig     `yaml:",omitempty"`
	Env          []string       `yaml:",omitempty"`
	Lang         string         `yaml:",omitempty"`
	Asmflags     StringArray    `yaml:",omitempty"`
	Gcflags      StringArray    `yaml:",omitempty"`
	ModTimestamp string         `yaml:"mod_timestamp,omitempty"`
	Skip         bool           `yaml:",omitempty"`
	GoBinary     string         `yaml:",omitempty"`
}

type HookConfig struct {
	Pre  BuildHooks `yaml:",omitempty"`
	Post BuildHooks `yaml:",omitempty"`
}

type BuildHooks []BuildHook

// UnmarshalYAML is a custom unmarshaler that allows simplified declaration of single command.
func (bhc *BuildHooks) UnmarshalYAML(unmarshal func(interface{}) error) error {
	var singleCmd string
	err := unmarshal(&singleCmd)
	if err == nil {
		*bhc = []BuildHook{{Cmd: singleCmd}}
		return nil
	}

	type t BuildHooks
	var hooks t
	if err := unmarshal(&hooks); err != nil {
		return err
	}
	*bhc = (BuildHooks)(hooks)
	return nil
}

type BuildHook struct {
	Dir string   `yaml:",omitempty"`
	Cmd string   `yaml:",omitempty"`
	Env []string `yaml:",omitempty"`
}

// UnmarshalYAML is a custom unmarshaler that allows simplified declarations of commands as strings.
func (bh *BuildHook) UnmarshalYAML(unmarshal func(interface{}) error) error {
	var cmd string
	if err := unmarshal(&cmd); err != nil {
		type t BuildHook
		var hook t
		if err := unmarshal(&hook); err != nil {
			return err
		}
		*bh = (BuildHook)(hook)
		return nil
	}

	bh.Cmd = cmd
	return nil
}

// FormatOverride is used to specify a custom format for a specific GOOS.
type FormatOverride struct {
	Goos   string `yaml:",omitempty"`
	Format string `yaml:",omitempty"`
}

// Archive config used for the archive.
type Archive struct {
	ID              string            `yaml:",omitempty"`
	Builds          []string          `yaml:",omitempty"`
	NameTemplate    string            `yaml:"name_template,omitempty"`
	Replacements    map[string]string `yaml:",omitempty"`
	Format          string            `yaml:",omitempty"`
	FormatOverrides []FormatOverride  `yaml:"format_overrides,omitempty"`
	WrapInDirectory string            `yaml:"wrap_in_directory,omitempty"`
	Files           []string          `yaml:",omitempty"`
}

// Release config used for the GitHub/GitLab release.
type Release struct {
	GitHub       Repo        `yaml:",omitempty"`
	GitLab       Repo        `yaml:",omitempty"`
	Gitea        Repo        `yaml:",omitempty"`
	Draft        bool        `yaml:",omitempty"`
	Disable      bool        `yaml:",omitempty"`
	Prerelease   string      `yaml:",omitempty"`
	NameTemplate string      `yaml:"name_template,omitempty"`
	IDs          []string    `yaml:"ids,omitempty"`
	ExtraFiles   []ExtraFile `yaml:"extra_files,omitempty"`
}

// Milestone config used for VCS milestone.
type Milestone struct {
	Repo         Repo   `yaml:",omitempty"`
	Close        bool   `yaml:",omitempty"`
	FailOnError  bool   `yaml:"fail_on_error,omitempty"`
	NameTemplate string `yaml:"name_template,omitempty"`
}

// ExtraFile on a release.
type ExtraFile struct {
	Glob string `yaml:"glob,omitempty"`
}

// NFPM config.
type NFPM struct {
	NFPMOverridables `yaml:",inline"`
	Overrides        map[string]NFPMOverridables `yaml:"overrides,omitempty"`

	ID          string   `yaml:",omitempty"`
	Builds      []string `yaml:",omitempty"`
	Formats     []string `yaml:",omitempty"`
	Vendor      string   `yaml:",omitempty"`
	Homepage    string   `yaml:",omitempty"`
	Maintainer  string   `yaml:",omitempty"`
	Description string   `yaml:",omitempty"`
	License     string   `yaml:",omitempty"`
	Bindir      string   `yaml:",omitempty"`
	Meta        bool     `yaml:",omitempty"` // make package without binaries - only deps
}

// NFPMScripts is used to specify maintainer scripts.
type NFPMScripts struct {
	PreInstall  string `yaml:"preinstall,omitempty"`
	PostInstall string `yaml:"postinstall,omitempty"`
	PreRemove   string `yaml:"preremove,omitempty"`
	PostRemove  string `yaml:"postremove,omitempty"`
}

// NFPMDebScripts is scripts only available on deb packages.
type NFPMDebScripts struct {
	Rules string `yaml:"rules,omitempty"`
}

// NFPMDebTriggers contains triggers only available for deb packages.
// https://wiki.debian.org/DpkgTriggers
// https://man7.org/linux/man-pages/man5/deb-triggers.5.html
type NFPMDebTriggers struct {
	Interest        []string `yaml:"interest,omitempty"`
	InterestAwait   []string `yaml:"interest_await,omitempty"`
	InterestNoAwait []string `yaml:"interest_noawait,omitempty"`
	Activate        []string `yaml:"activate,omitempty"`
	ActivateAwait   []string `yaml:"activate_await,omitempty"`
	ActivateNoAwait []string `yaml:"activate_noawait,omitempty"`
}

// NFPMDebSignature contains config for signing deb packages created by nfpm
type NFPMDebSignature struct {
	// PGP secret key, can be ASCII-armored
	KeyFile       string `yaml:"key_file,omitempty"`
	KeyPassphrase string `yaml:"-"` // populated from environment variable
	// origin, maint or archive (defaults to origin)
	Type string `yaml:"type,omitempty"`
}

// type alias to prevent stack overflowing in the custom unmarshaler.
type nfpmDebSignature NFPMDebSignature

func (nds *NFPMDebSignature) UnmarshalYAML(unmarshal func(interface{}) error) error {
	var sig nfpmDebSignature
	if err := unmarshal(&sig); err != nil {
		return err
	}

	debPassphrase := os.Getenv("NFPM_DEB_PASSPHRASE")
	if debPassphrase != "" {
		sig.KeyPassphrase = debPassphrase
	} else {
		generalPassphrase := os.Getenv("NFPM_PASSPHRASE")
		sig.KeyPassphrase = generalPassphrase
	}

	*nds = NFPMDebSignature(sig)

	return nil
}

// NFPMDeb is custom configs that are only available on deb packages.
type NFPMDeb struct {
	Scripts         NFPMDebScripts   `yaml:"scripts,omitempty"`
	Triggers        NFPMDebTriggers  `yaml:"triggers,omitempty"`
	Breaks          []string         `yaml:"breaks,omitempty"`
	VersionMetadata string           `yaml:"metadata,omitempty"` // Deprecated: Moved to Info
	Signature       NFPMDebSignature `yaml:"signature,omitempty"`
}

// NFPMOverridables is used to specify per package format settings.
type NFPMOverridables struct {
	FileNameTemplate string            `yaml:"file_name_template,omitempty"`
	PackageName      string            `yaml:"package_name,omitempty"`
	Epoch            string            `yaml:"epoch,omitempty"`
	Release          string            `yaml:"release,omitempty"`
	Replacements     map[string]string `yaml:",omitempty"`
	Dependencies     []string          `yaml:",omitempty"`
	Recommends       []string          `yaml:",omitempty"`
	Suggests         []string          `yaml:",omitempty"`
	Conflicts        []string          `yaml:",omitempty"`
	EmptyFolders     []string          `yaml:"empty_folders,omitempty"`
	Files            map[string]string `yaml:",omitempty"`
	ConfigFiles      map[string]string `yaml:"config_files,omitempty"`
	Scripts          NFPMScripts       `yaml:"scripts,omitempty"`
	Deb              NFPMDeb           `yaml:"deb,omitempty"`
}

// Sign config.
type Sign struct {
	ID        string   `yaml:"id,omitempty"`
	Cmd       string   `yaml:"cmd,omitempty"`
	Args      []string `yaml:"args,omitempty"`
	Signature string   `yaml:"signature,omitempty"`
	Artifacts string   `yaml:"artifacts,omitempty"`
	IDs       []string `yaml:"ids,omitempty"`
	Stdin     *string  `yaml:"stdin,omitempty"`
	StdinFile string   `yaml:"stdin_file,omitempty"`
}

// SnapcraftAppMetadata for the binaries that will be in the snap package.
type SnapcraftAppMetadata struct {
	Plugs            []string
	Daemon           string
	Args             string
	Completer        string `yaml:",omitempty"`
	Command          string `yaml:"command"`
	RestartCondition string `yaml:"restart_condition,omitempty"`
}

// Snapcraft config.
type Snapcraft struct {
	NameTemplate string            `yaml:"name_template,omitempty"`
	Replacements map[string]string `yaml:",omitempty"`
	Publish      bool              `yaml:",omitempty"`

	ID          string                          `yaml:",omitempty"`
	Builds      []string                        `yaml:",omitempty"`
	Name        string                          `yaml:",omitempty"`
	Summary     string                          `yaml:",omitempty"`
	Description string                          `yaml:",omitempty"`
	Base        string                          `yaml:",omitempty"`
	License     string                          `yaml:",omitempty"`
	Grade       string                          `yaml:",omitempty"`
	Confinement string                          `yaml:",omitempty"`
	Apps        map[string]SnapcraftAppMetadata `yaml:",omitempty"`
	Plugs       map[string]interface{}          `yaml:",omitempty"`

	Files []SnapcraftExtraFiles `yaml:"extra_files,omitempty"`
}

// SnapcraftExtraFiles config.
type SnapcraftExtraFiles struct {
	Source      string `yaml:"source"`
	Destination string `yaml:"destination,omitempty"`
	Mode        uint32 `yaml:"mode,omitempty"`
}

// Snapshot config.
type Snapshot struct {
	NameTemplate string `yaml:"name_template,omitempty"`
}

// Checksum config.
type Checksum struct {
	NameTemplate string `yaml:"name_template,omitempty"`
	Algorithm    string `yaml:"algorithm,omitempty"`
	Disable      bool   `yaml:"disable,omitempty"`
}

// Docker image config.
type Docker struct {
	Binaries           []string `yaml:",omitempty"`
	Builds             []string `yaml:",omitempty"`
	Goos               string   `yaml:",omitempty"`
	Goarch             string   `yaml:",omitempty"`
	Goarm              string   `yaml:",omitempty"`
	Dockerfile         string   `yaml:",omitempty"`
	ImageTemplates     []string `yaml:"image_templates,omitempty"`
	SkipPush           string   `yaml:"skip_push,omitempty"`
	Files              []string `yaml:"extra_files,omitempty"`
	BuildFlagTemplates []string `yaml:"build_flag_templates,omitempty"`
}

// Filters config.
type Filters struct {
	Exclude []string `yaml:",omitempty"`
}

// Changelog Config.
type Changelog struct {
	Filters Filters `yaml:",omitempty"`
	Sort    string  `yaml:",omitempty"`
	Skip    bool    `yaml:",omitempty"`
}

// EnvFiles holds paths to files that contains environment variables
// values like the github token for example.
type EnvFiles struct {
	GitHubToken string `yaml:"github_token,omitempty"`
	GitLabToken string `yaml:"gitlab_token,omitempty"`
	GiteaToken  string `yaml:"gitea_token,omitempty"`
}

// Before config.
type Before struct {
	Hooks []string `yaml:",omitempty"`
}

// Blob contains config for GO CDK blob.
type Blob struct {
	Bucket     string      `yaml:",omitempty"`
	Provider   string      `yaml:",omitempty"`
	Region     string      `yaml:",omitempty"`
	DisableSSL bool        `yaml:"disableSSL,omitempty"`
	Folder     string      `yaml:",omitempty"`
	KMSKey     string      `yaml:",omitempty"`
	IDs        []string    `yaml:"ids,omitempty"`
	Endpoint   string      `yaml:",omitempty"` // used for minio for example
	ExtraFiles []ExtraFile `yaml:"extra_files,omitempty"`
}

// Upload configuration.
type Upload struct {
	Name               string   `yaml:",omitempty"`
	IDs                []string `yaml:"ids,omitempty"`
	Target             string   `yaml:",omitempty"`
	Username           string   `yaml:",omitempty"`
	Mode               string   `yaml:",omitempty"`
	Method             string   `yaml:",omitempty"`
	ChecksumHeader     string   `yaml:"checksum_header,omitempty"`
	TrustedCerts       string   `yaml:"trusted_certificates,omitempty"`
	Checksum           bool     `yaml:",omitempty"`
	Signature          bool     `yaml:",omitempty"`
	CustomArtifactName bool     `yaml:"custom_artifact_name,omitempty"`
}

// Publisher configuration.
type Publisher struct {
	Name      string   `yaml:",omitempty"`
	IDs       []string `yaml:"ids,omitempty"`
	Checksum  bool     `yaml:",omitempty"`
	Signature bool     `yaml:",omitempty"`
	Dir       string   `yaml:",omitempty"`
	Cmd       string   `yaml:",omitempty"`
	Env       []string `yaml:",omitempty"`
}

// Source configuration.
type Source struct {
	NameTemplate string `yaml:"name_template,omitempty"`
	Format       string `yaml:",omitempty"`
	Enabled      bool   `yaml:",omitempty"`
}

// Project includes all project configuration.
type Project struct {
	ProjectName   string      `yaml:"project_name,omitempty"`
	Env           []string    `yaml:",omitempty"`
	Release       Release     `yaml:",omitempty"`
	Milestones    []Milestone `yaml:",omitempty"`
	Brews         []Homebrew  `yaml:",omitempty"`
	Scoop         Scoop       `yaml:",omitempty"`
	Builds        []Build     `yaml:",omitempty"`
	Archives      []Archive   `yaml:",omitempty"`
	NFPMs         []NFPM      `yaml:"nfpms,omitempty"`
	Snapcrafts    []Snapcraft `yaml:",omitempty"`
	Snapshot      Snapshot    `yaml:",omitempty"`
	Checksum      Checksum    `yaml:",omitempty"`
	Dockers       []Docker    `yaml:",omitempty"`
	Artifactories []Upload    `yaml:",omitempty"`
	Uploads       []Upload    `yaml:",omitempty"`
	Blobs         []Blob      `yaml:"blobs,omitempty"`
	Publishers    []Publisher `yaml:"publishers,omitempty"`
	Changelog     Changelog   `yaml:",omitempty"`
	Dist          string      `yaml:",omitempty"`
	Signs         []Sign      `yaml:",omitempty"`
	EnvFiles      EnvFiles    `yaml:"env_files,omitempty"`
	Before        Before      `yaml:",omitempty"`
	Source        Source      `yaml:",omitempty"`

	// this is a hack ¯\_(ツ)_/¯
	SingleBuild Build `yaml:"build,omitempty"`

	// should be set if using github enterprise
	GitHubURLs GitHubURLs `yaml:"github_urls,omitempty"`

	// should be set if using a private gitlab
	GitLabURLs GitLabURLs `yaml:"gitlab_urls,omitempty"`

	// should be set if using Gitea
	GiteaURLs GiteaURLs `yaml:"gitea_urls,omitempty"`
}

// Load config file.
func Load(file string) (config Project, err error) {
	f, err := os.Open(file) // #nosec
	if err != nil {
		return
	}
	defer f.Close()
	log.WithField("file", file).Info("loading config file")
	return LoadReader(f)
}

// LoadReader config via io.Reader.
func LoadReader(fd io.Reader) (config Project, err error) {
	data, err := ioutil.ReadAll(fd)
	if err != nil {
		return config, err
	}
	err = yaml.UnmarshalStrict(data, &config)
	log.WithField("config", config).Debug("loaded config file")
	return config, err
}