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feat(configuration): add initial support for Viper command initializa…
…tion (#607) * feat(config): initial common package for cmds with viper * feat(viper): begin integrating viper into commands * feat(viper): print config used * feat(template): initial templating of a validation * feat(template): testing functions in templating * fix(e2e): update function use for proper arguments * chore(docs): update docs and cleanup * fix(dev): cleanup proto templating logic * fix(pkg): cleanup the templating proto work * fix(cli): update hooks for nested commands * fix(docs): Update src/cmd/common/viper.go Co-authored-by: Megan Wolf <97549300+meganwolf0@users.noreply.github.com> * fix(dev): update alias for dev to d * chore(deps): run go mod tidy to resolve updates to deps --------- Co-authored-by: Megan Wolf <97549300+meganwolf0@users.noreply.github.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| # Config File | ||
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| Lula allows the use and specification of a config file in the following ways: | ||
| - Checking current working directory for a `lula-config.yaml` file | ||
| - Specification with environment variable `LULA_CONFIG=<path>` | ||
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| ## Identification | ||
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| If identified, Lula will log which configuration file is used to stdout: | ||
| ```bash | ||
| Using config file /home/dev/work/lula/lula-config.yaml | ||
| ``` | ||
| ## Support | ||
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| Modification of `log level` can be set in the configuration file by specifying: | ||
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| lula-config.yaml | ||
| ```yaml | ||
| log_level: debug | ||
| ``` |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| log_level: debug |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,42 @@ | ||
| package common | ||
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| import ( | ||
| "os" | ||
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| "github.com/defenseunicorns/lula/src/config" | ||
| "github.com/defenseunicorns/lula/src/pkg/message" | ||
| ) | ||
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| func SetupClI(logLevel string) error { | ||
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| match := map[string]message.LogLevel{ | ||
| "warn": message.WarnLevel, | ||
| "info": message.InfoLevel, | ||
| "debug": message.DebugLevel, | ||
| "trace": message.TraceLevel, | ||
| } | ||
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| // No log level set, so use the default | ||
| if logLevel != "" { | ||
| if lvl, ok := match[logLevel]; ok { | ||
| message.SetLogLevel(lvl) | ||
| message.Info("Log level set to " + logLevel) | ||
| } else { | ||
| message.Warn("Invalid log level. Valid options are: warn, info, debug, trace.") | ||
| } | ||
| } | ||
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| // Disable progress bars for CI envs | ||
| if os.Getenv("CI") == "true" { | ||
| message.Debug("CI environment detected, disabling progress bars") | ||
| message.NoProgress = true | ||
| } | ||
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| if !config.SkipLogFile { | ||
| message.UseLogFile() | ||
| } | ||
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| printViperConfigUsed() | ||
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| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| package common | ||
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| import ( | ||
| "errors" | ||
| "os" | ||
| "strings" | ||
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| "github.com/defenseunicorns/lula/src/pkg/message" | ||
| "github.com/spf13/viper" | ||
| ) | ||
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| const ( | ||
| VLogLevel = "log_level" | ||
| ) | ||
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| var ( | ||
| // Viper instance used by commands | ||
| v *viper.Viper | ||
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| // Viper configuration error | ||
| vConfigError error | ||
| ) | ||
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| // InitViper initializes the viper singleton for the CLI | ||
| func InitViper() *viper.Viper { | ||
| // Already initialized by some other command | ||
| if v != nil { | ||
| return v | ||
| } | ||
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| v = viper.New() | ||
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| // Skip for the version command | ||
| if isVersionCmd() { | ||
| return v | ||
| } | ||
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| // Specify an alternate config file | ||
| cfgFile := os.Getenv("LULA_CONFIG") | ||
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| // Don't forget to read config either from cfgFile or from home directory! | ||
| if cfgFile != "" { | ||
| // Use config file from the flag. | ||
| v.SetConfigFile(cfgFile) | ||
| } else { | ||
| // Search config paths in the current directory and $HOME/.lula. | ||
| v.AddConfigPath(".") | ||
| v.AddConfigPath("$HOME/.lula") | ||
| v.SetConfigName("lula-config") | ||
| } | ||
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| // E.g. LULA_LOG_LEVEL=debug | ||
| v.SetEnvPrefix("lula") | ||
| v.SetEnvKeyReplacer(strings.NewReplacer(".", "_")) | ||
| v.AutomaticEnv() | ||
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| // Optional, so ignore errors | ||
| vConfigError = v.ReadInConfig() | ||
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| // Set default values for viper | ||
| setDefaults() | ||
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| return v | ||
| } | ||
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| // GetViper returns the viper singleton | ||
| func GetViper() *viper.Viper { | ||
| return v | ||
| } | ||
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| func isVersionCmd() bool { | ||
| args := os.Args | ||
| return len(args) > 1 && (args[1] == "version" || args[1] == "v") | ||
| } | ||
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| func setDefaults() { | ||
| v.SetDefault(VLogLevel, "info") | ||
| } | ||
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| func printViperConfigUsed() { | ||
| // Only print config info if viper is initialized. | ||
| vInitialized := v != nil | ||
| if !vInitialized { | ||
| return | ||
| } | ||
| var notFoundErr viper.ConfigFileNotFoundError | ||
| if errors.As(vConfigError, ¬FoundErr) { | ||
| return | ||
| } | ||
| if vConfigError != nil { | ||
| message.WarnErrf(vConfigError, "failed to load config file: %s", vConfigError.Error()) | ||
| return | ||
| } | ||
| message.Notef("Using config file %s", v.ConfigFileUsed()) | ||
| } |
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