v0.10.2

.changes/unreleased/Added-20250313-232320.yaml

@@ -1,3 +0,0 @@
-kind: Added
-body: 'Notifications: http service added'
-time: 2025-03-13T23:23:20.130625927-05:00

.changes/unreleased/Changed-20250313-224840.yaml

@@ -1,3 +0,0 @@
-kind: Changed
-body: 'vault: initialize vault before validating config'
-time: 2025-03-13T22:48:40.584581357-05:00

.changes/v0.10.2.md

@@ -0,0 +1,6 @@
+## v0.10.2 - 2025-03-19
+### Added
+* Notifications: http service added
+* Variable support. Can be referenced with `%{var:nameOfVar}%` in select string fields.
+### Changed
+* vault: initialize vault before validating config

CHANGELOG.md

@@ -6,6 +6,13 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html),
 and is generated by [Changie](https://github.com/miniscruff/changie).
 
 
+## v0.10.2 - 2025-03-19
+### Added
+* Notifications: http service added
+* Variable support. Can be referenced with `%{var:nameOfVar}%` in select string fields.
+### Changed
+* vault: initialize vault before validating config
+
 ## v0.10.1 - 2025-03-11
 ### Added
 * UserCommands: add ssh public keys when running locally

cmd/version.go

@@ -7,7 +7,7 @@ import (
 	"github.com/spf13/cobra"
 )
 
-const versionStr = "0.10.1"
+const versionStr = "0.10.2"
 
 var (
 	versionCmd = &cobra.Command{

pkg/backy/allowedexternaldirectives_enumer.go

@@ -0,0 +1,145 @@
+// Code generated by "enumer -linecomment -yaml -text -json -type=AllowedExternalDirectives"; DO NOT EDIT.
+
+package backy
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+)
+
+const _AllowedExternalDirectivesName = "DefaultExternalDirvaultvault-filevault-file-envfile-envfileenv"
+
+var _AllowedExternalDirectivesIndex = [...]uint8{0, 18, 23, 33, 47, 55, 59, 62}
+
+const _AllowedExternalDirectivesLowerName = "defaultexternaldirvaultvault-filevault-file-envfile-envfileenv"
+
+func (i AllowedExternalDirectives) String() string {
+	if i < 0 || i >= AllowedExternalDirectives(len(_AllowedExternalDirectivesIndex)-1) {
+		return fmt.Sprintf("AllowedExternalDirectives(%d)", i)
+	}
+	return _AllowedExternalDirectivesName[_AllowedExternalDirectivesIndex[i]:_AllowedExternalDirectivesIndex[i+1]]
+}
+
+// An "invalid array index" compiler error signifies that the constant values have changed.
+// Re-run the stringer command to generate them again.
+func _AllowedExternalDirectivesNoOp() {
+	var x [1]struct{}
+	_ = x[DefaultExternalDir-(0)]
+	_ = x[AllowedExternalDirectiveVault-(1)]
+	_ = x[AllowedExternalDirectiveVaultFile-(2)]
+	_ = x[AllowedExternalDirectiveAll-(3)]
+	_ = x[AllowedExternalDirectiveFileEnv-(4)]
+	_ = x[AllowedExternalDirectiveFile-(5)]
+	_ = x[AllowedExternalDirectiveEnv-(6)]
+}
+
+var _AllowedExternalDirectivesValues = []AllowedExternalDirectives{DefaultExternalDir, AllowedExternalDirectiveVault, AllowedExternalDirectiveVaultFile, AllowedExternalDirectiveAll, AllowedExternalDirectiveFileEnv, AllowedExternalDirectiveFile, AllowedExternalDirectiveEnv}
+
+var _AllowedExternalDirectivesNameToValueMap = map[string]AllowedExternalDirectives{
+	_AllowedExternalDirectivesName[0:18]:       DefaultExternalDir,
+	_AllowedExternalDirectivesLowerName[0:18]:  DefaultExternalDir,
+	_AllowedExternalDirectivesName[18:23]:      AllowedExternalDirectiveVault,
+	_AllowedExternalDirectivesLowerName[18:23]: AllowedExternalDirectiveVault,
+	_AllowedExternalDirectivesName[23:33]:      AllowedExternalDirectiveVaultFile,
+	_AllowedExternalDirectivesLowerName[23:33]: AllowedExternalDirectiveVaultFile,
+	_AllowedExternalDirectivesName[33:47]:      AllowedExternalDirectiveAll,
+	_AllowedExternalDirectivesLowerName[33:47]: AllowedExternalDirectiveAll,
+	_AllowedExternalDirectivesName[47:55]:      AllowedExternalDirectiveFileEnv,
+	_AllowedExternalDirectivesLowerName[47:55]: AllowedExternalDirectiveFileEnv,
+	_AllowedExternalDirectivesName[55:59]:      AllowedExternalDirectiveFile,
+	_AllowedExternalDirectivesLowerName[55:59]: AllowedExternalDirectiveFile,
+	_AllowedExternalDirectivesName[59:62]:      AllowedExternalDirectiveEnv,
+	_AllowedExternalDirectivesLowerName[59:62]: AllowedExternalDirectiveEnv,
+}
+
+var _AllowedExternalDirectivesNames = []string{
+	_AllowedExternalDirectivesName[0:18],
+	_AllowedExternalDirectivesName[18:23],
+	_AllowedExternalDirectivesName[23:33],
+	_AllowedExternalDirectivesName[33:47],
+	_AllowedExternalDirectivesName[47:55],
+	_AllowedExternalDirectivesName[55:59],
+	_AllowedExternalDirectivesName[59:62],
+}
+
+// AllowedExternalDirectivesString retrieves an enum value from the enum constants string name.
+// Throws an error if the param is not part of the enum.
+func AllowedExternalDirectivesString(s string) (AllowedExternalDirectives, error) {
+	if val, ok := _AllowedExternalDirectivesNameToValueMap[s]; ok {
+		return val, nil
+	}
+
+	if val, ok := _AllowedExternalDirectivesNameToValueMap[strings.ToLower(s)]; ok {
+		return val, nil
+	}
+	return 0, fmt.Errorf("%s does not belong to AllowedExternalDirectives values", s)
+}
+
+// AllowedExternalDirectivesValues returns all values of the enum
+func AllowedExternalDirectivesValues() []AllowedExternalDirectives {
+	return _AllowedExternalDirectivesValues
+}
+
+// AllowedExternalDirectivesStrings returns a slice of all String values of the enum
+func AllowedExternalDirectivesStrings() []string {
+	strs := make([]string, len(_AllowedExternalDirectivesNames))
+	copy(strs, _AllowedExternalDirectivesNames)
+	return strs
+}
+
+// IsAAllowedExternalDirectives returns "true" if the value is listed in the enum definition. "false" otherwise
+func (i AllowedExternalDirectives) IsAAllowedExternalDirectives() bool {
+	for _, v := range _AllowedExternalDirectivesValues {
+		if i == v {
+			return true
+		}
+	}
+	return false
+}
+
+// MarshalJSON implements the json.Marshaler interface for AllowedExternalDirectives
+func (i AllowedExternalDirectives) MarshalJSON() ([]byte, error) {
+	return json.Marshal(i.String())
+}
+
+// UnmarshalJSON implements the json.Unmarshaler interface for AllowedExternalDirectives
+func (i *AllowedExternalDirectives) UnmarshalJSON(data []byte) error {
+	var s string
+	if err := json.Unmarshal(data, &s); err != nil {
+		return fmt.Errorf("AllowedExternalDirectives should be a string, got %s", data)
+	}
+
+	var err error
+	*i, err = AllowedExternalDirectivesString(s)
+	return err
+}
+
+// MarshalText implements the encoding.TextMarshaler interface for AllowedExternalDirectives
+func (i AllowedExternalDirectives) MarshalText() ([]byte, error) {
+	return []byte(i.String()), nil
+}
+
+// UnmarshalText implements the encoding.TextUnmarshaler interface for AllowedExternalDirectives
+func (i *AllowedExternalDirectives) UnmarshalText(text []byte) error {
+	var err error
+	*i, err = AllowedExternalDirectivesString(string(text))
+	return err
+}
+
+// MarshalYAML implements a YAML Marshaler for AllowedExternalDirectives
+func (i AllowedExternalDirectives) MarshalYAML() (interface{}, error) {
+	return i.String(), nil
+}
+
+// UnmarshalYAML implements a YAML Unmarshaler for AllowedExternalDirectives
+func (i *AllowedExternalDirectives) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	var s string
+	if err := unmarshal(&s); err != nil {
+		return err
+	}
+
+	var err error
+	*i, err = AllowedExternalDirectivesString(s)
+	return err
+}

pkg/backy/backy.go

@@ -537,6 +537,12 @@ func logCommandOutput(command *Command, cmdOutBuf bytes.Buffer, cmdCtxLogger zer
 	return outputArr
 }
 
+func (c *Command) GetVariablesFromConf(opts *ConfigOpts) {
+	c.ScriptEnvFile = replaceVarInString(opts.Vars, c.ScriptEnvFile, opts.Logger)
+	c.Name = replaceVarInString(opts.Vars, c.Name, opts.Logger)
+	c.OutputFile = replaceVarInString(opts.Vars, c.OutputFile, opts.Logger)
+}
+
 // func executeUserCommands() []string {
 
 // }

pkg/backy/config.go

@@ -103,6 +103,12 @@ func (opts *ConfigOpts) ReadConfig() *ConfigOpts {
 
 	backyKoanf := opts.koanf
 
+	if backyKoanf.Exists("variables") {
+		unmarshalConfigIntoStruct(backyKoanf, "variables", &opts.Vars, opts.Logger)
+	}
+
+	getConfigDir(opts)
+
 	opts.loadEnv()
 
 	if backyKoanf.Bool(getNestedConfig("logging", "cmd-std-out")) {
@@ -125,18 +131,23 @@ func (opts *ConfigOpts) ReadConfig() *ConfigOpts {
 
 	log.Info().Str("config file", opts.ConfigFilePath).Send()
 
-	if err := opts.setupVault(); err != nil {
+	if err := opts.initVault(); err != nil {
 		log.Err(err).Send()
 	}
 
-	unmarshalConfig(backyKoanf, "commands", &opts.Cmds, opts.Logger)
+	unmarshalConfigIntoStruct(backyKoanf, "commands", &opts.Cmds, opts.Logger)
 
 	getCommandEnvironments(opts)
 
-	unmarshalConfig(backyKoanf, "hosts", &opts.Hosts, opts.Logger)
+	unmarshalConfigIntoStruct(backyKoanf, "hosts", &opts.Hosts, opts.Logger)
 
 	resolveHostConfigs(opts)
 
+	for k, v := range opts.Vars {
+		v = getExternalConfigDirectiveValue(v, opts)
+		opts.Vars[k] = v
+	}
+
 	loadCommandLists(opts, backyKoanf)
 
 	validateCommandLists(opts)
@@ -152,7 +163,7 @@ func (opts *ConfigOpts) ReadConfig() *ConfigOpts {
 	filterExecuteLists(opts)
 
 	if backyKoanf.Exists("notifications") {
-		unmarshalConfig(backyKoanf, "notifications", &opts.NotificationConf, opts.Logger)
+		unmarshalConfigIntoStruct(backyKoanf, "notifications", &opts.NotificationConf, opts.Logger)
 	}
 
 	opts.SetupNotify()
@@ -240,7 +251,7 @@ func setupLogger(opts *ConfigOpts) zerolog.Logger {
 	return zerolog.New(writers).With().Timestamp().Logger()
 }
 
-func unmarshalConfig(k *koanf.Koanf, key string, target interface{}, log zerolog.Logger) {
+func unmarshalConfigIntoStruct(k *koanf.Koanf, key string, target interface{}, log zerolog.Logger) {
 	if err := k.UnmarshalWithConf(key, target, koanf.UnmarshalConf{Tag: "yaml"}); err != nil {
 		logging.ExitWithMSG(fmt.Sprintf("error unmarshaling key %s into struct: %v", key, err), 1, &log)
 	}
@@ -282,16 +293,22 @@ func resolveProxyHosts(host *Host, opts *ConfigOpts) {
 	}
 }
 
+func getConfigDir(opts *ConfigOpts) {
+	if isRemoteURL(opts.ConfigFilePath) {
+		p, _ := getRemoteDir(opts.ConfigFilePath)
+		opts.ConfigDir = p
+	} else {
+		opts.ConfigDir = path.Dir(opts.ConfigFilePath)
+	}
+}
+
 func loadCommandLists(opts *ConfigOpts, backyKoanf *koanf.Koanf) {
 	var listConfigFiles []string
 	var u *url.URL
 	var p string
-	// if config file is remote, use the directory of the remote file
 	if isRemoteURL(opts.ConfigFilePath) {
 		p, u = getRemoteDir(opts.ConfigFilePath)
 		opts.ConfigDir = p
-		println(p)
-		// // Still use local list files if a remote config file is used, but use them last
 		listConfigFiles = []string{u.JoinPath("lists.yml").String(), u.JoinPath("lists.yaml").String()}
 	} else {
 		opts.ConfigDir = path.Dir(opts.ConfigFilePath)
@@ -314,7 +331,7 @@ func loadCommandLists(opts *ConfigOpts, backyKoanf *koanf.Koanf) {
 		if backyKoanf.Exists("cmdLists.file") {
 			loadCmdListsFile(backyKoanf, listsConfig, opts)
 		} else {
-			unmarshalConfig(backyKoanf, "cmdLists", &opts.CmdConfigLists, opts.Logger)
+			unmarshalConfigIntoStruct(backyKoanf, "cmdLists", &opts.CmdConfigLists, opts.Logger)
 		}
 	}
 }
@@ -354,7 +371,7 @@ func loadListConfigFile(filePath string, k *koanf.Koanf, opts *ConfigOpts) bool
 		return false
 	}
 
-	unmarshalConfig(k, "cmdLists", &opts.CmdConfigLists, opts.Logger)
+	unmarshalConfigIntoStruct(k, "cmdLists", &opts.CmdConfigLists, opts.Logger)
 	keyNotSupported("cmd-lists", "cmdLists", k, opts, true)
 	opts.CmdListFile = filePath
 	return true
@@ -382,7 +399,7 @@ func loadCmdListsFile(backyKoanf *koanf.Koanf, listsConfig *koanf.Koanf, opts *C
 	}
 
 	keyNotSupported("cmd-lists", "cmdLists", listsConfig, opts, true)
-	unmarshalConfig(listsConfig, "cmdLists", &opts.CmdConfigLists, opts.Logger)
+	unmarshalConfigIntoStruct(listsConfig, "cmdLists", &opts.CmdConfigLists, opts.Logger)
 	opts.Logger.Info().Str("using lists config file", opts.CmdListFile).Send()
 }
 
@@ -439,7 +456,7 @@ func getLoggingKeyFromConfig(key string) string {
 // 	return fmt.Sprintf("cmdLists.%s", list)
 // }
 
-func (opts *ConfigOpts) setupVault() error {
+func (opts *ConfigOpts) initVault() error {
 	if !opts.koanf.Bool("vault.enabled") {
 		return nil
 	}
@@ -460,7 +477,7 @@ func (opts *ConfigOpts) setupVault() error {
 		token = os.Getenv("VAULT_TOKEN")
 	}
 	if strings.TrimSpace(token) == "" {
-		return fmt.Errorf("no token found, but one was required. \n\nSet the config key vault.token or the environment variable VAULT_TOKEN")
+		return fmt.Errorf("no token found. One is required. \n\nSet the config key vault.token or the environment variable VAULT_TOKEN")
 	}
 
 	client.SetToken(token)
@@ -472,6 +489,11 @@ func (opts *ConfigOpts) setupVault() error {
 
 	opts.vaultClient = client
 
+	for _, v := range opts.VaultKeys {
+		v.Name = replaceVarInString(opts.Vars, v.Key, opts.Logger)
+		v.MountPath = replaceVarInString(opts.Vars, v.MountPath, opts.Logger)
+	}
+
 	return nil
 }
 
@@ -479,7 +501,10 @@ func processCmds(opts *ConfigOpts) error {
 
 	// process commands
 	for cmdName, cmd := range opts.Cmds {
-
+		for i, v := range cmd.Args {
+			v = replaceVarInString(opts.Vars, v, opts.Logger)
+			cmd.Args[i] = v
+		}
 		if cmd.Name == "" {
 			cmd.Name = cmdName
 		}
@@ -504,6 +529,10 @@ func processCmds(opts *ConfigOpts) error {
 
 		// resolve hosts
 		if cmd.Host != nil {
+			cmdHost := replaceVarInString(opts.Vars, *cmd.Host, opts.Logger)
+			if cmdHost != *cmd.Host {
+				cmd.Host = &cmdHost
+			}
 			host, hostFound := opts.Hosts[*cmd.Host]
 			if hostFound {
 				cmd.RemoteHost = host
@@ -563,7 +592,7 @@ func processCmds(opts *ConfigOpts) error {
 			if cmd.Username == "" {
 				return fmt.Errorf("username is required for user command %s", cmd.Name)
 			}
-
+			cmd.Username = replaceVarInString(opts.Vars, cmd.Username, opts.Logger)
 			err := detectOSType(cmd, opts)
 			if err != nil {
 				opts.Logger.Info().Err(err).Str("command", cmdName).Send()
@@ -689,3 +718,24 @@ func keyNotSupported(oldKey, newKey string, koanf *koanf.Koanf, opts *ConfigOpts
 		}
 	}
 }
+
+func replaceVarInString(vars map[string]string, str string, logger zerolog.Logger) string {
+	if strings.Contains(str, "%{var:") && strings.Contains(str, "}%") {
+		logger.Debug().Msgf("replacing vars in string %s", str)
+		for k, v := range vars {
+			if strings.Contains(str, "%{var:"+k+"}%") {
+				str = strings.ReplaceAll(str, "%{var:"+k+"}%", v)
+			}
+		}
+		if strings.Contains(str, "%{var:") && strings.Contains(str, "}%") {
+			logger.Warn().Msg("could not replace all vars in string")
+		}
+	}
+	return str
+}
+
+func VariadicFunctionParameterTest(allowedKeys ...string) {
+	if contains(allowedKeys, "file") {
+		println("file param included")
+	}
+}

pkg/backy/types.go

@@ -205,6 +205,8 @@ type (
 
 		List ListConfig
 
+		Vars map[string]string `yaml:"variables"`
+
 		VaultKeys []*VaultKey `yaml:"keys"`
 
 		koanf *koanf.Koanf
@@ -276,8 +278,9 @@ type (
 	}
 
 	// use ints so we can use enums
-	CommandType      int
-	PackageOperation int
+	CommandType               int
+	PackageOperation          int
+	AllowedExternalDirectives int
 )
 
 //go:generate go run github.com/dmarkham/enumer -linecomment -yaml -text -json -type=CommandType
@@ -300,3 +303,14 @@ const (
 	PackOpCheckVersion                         // checkVersion
 	PackOpIsInstalled                          // isInstalled
 )
+
+//go:generate go run github.com/dmarkham/enumer -linecomment -yaml -text -json -type=AllowedExternalDirectives
+const (
+	DefaultExternalDir                AllowedExternalDirectives = iota
+	AllowedExternalDirectiveVault                               // vault
+	AllowedExternalDirectiveVaultFile                           // vault-file
+	AllowedExternalDirectiveAll                                 // vault-file-env
+	AllowedExternalDirectiveFileEnv                             // file-env
+	AllowedExternalDirectiveFile                                // file
+	AllowedExternalDirectiveEnv                                 // env
+)

pkg/backy/utils.go

@@ -362,6 +362,7 @@ func getExternalConfigDirectiveValue(key string, opts *ConfigOpts) string {
 	if !(strings.HasPrefix(key, externDirectiveStart) && strings.HasSuffix(key, externDirectiveEnd)) {
 		return key
 	}
+	key = replaceVarInString(opts.Vars, key, opts.Logger)
 	opts.Logger.Debug().Str("expanding external key", key).Send()
 	if strings.HasPrefix(key, envExternDirectiveStart) {
 		key = strings.TrimPrefix(key, envExternDirectiveStart)