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Merge pull request #7 from MrLYC/develop
Add command completion helper
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,205 @@ | ||
| package utils | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strings" | ||
| "sync" | ||
|
|
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| "github.com/spf13/cobra" | ||
|
|
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| "github.com/mrlyc/cmdr/core" | ||
| ) | ||
|
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| func RunCobraCommandWith(provider core.CommandProvider, fn func(cfg core.Configuration, manager core.CommandManager) error) func(cmd *cobra.Command, args []string) { | ||
| return func(cmd *cobra.Command, args []string) { | ||
| cfg := core.GetConfiguration() | ||
|
|
||
| manager, err := core.NewCommandManager(provider, cfg) | ||
| if err != nil { | ||
| ExitOnError("Failed to create command manager", err) | ||
| } | ||
|
|
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| defer CallClose(manager) | ||
|
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| ExitOnError(fmt.Sprintf("Failed to run command %s", cmd.Name()), fn(cfg, manager)) | ||
| } | ||
| } | ||
|
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| type CobraCommandCompleteHelper struct { | ||
| managerProvider core.CommandProvider | ||
| commands []core.Command | ||
| queryOnce sync.Once | ||
| cobraCommand *cobra.Command | ||
| flagName string | ||
| flagVersion string | ||
| flagLocation string | ||
| flagActivate string | ||
| } | ||
|
|
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| func (h *CobraCommandCompleteHelper) updateQuery(query core.CommandQuery) core.CommandQuery { | ||
| flags := h.cobraCommand.Flags() | ||
| name, err := flags.GetString(h.flagName) | ||
| if err == nil && name != "" { | ||
| query.WithName(name) | ||
| } | ||
|
|
||
| version, err := flags.GetString(h.flagVersion) | ||
| if err == nil && version != "" { | ||
| query.WithVersion(version) | ||
| } | ||
|
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| location, err := flags.GetString(h.flagLocation) | ||
| if err == nil && location != "" { | ||
| query.WithLocation(location) | ||
| } | ||
|
|
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| activate, err := flags.GetBool(h.flagActivate) | ||
| if err == nil && activate { | ||
| query.WithActivated(activate) | ||
| } | ||
|
|
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| return query | ||
| } | ||
|
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| func (h *CobraCommandCompleteHelper) getCommands() []core.Command { | ||
| logger := core.Logger | ||
|
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| h.queryOnce.Do(func() { | ||
| manager, err := core.NewCommandManager(h.managerProvider, core.GetConfiguration()) | ||
| if err != nil { | ||
| logger.Debug("Failed to create command manager", map[string]interface{}{ | ||
| "error": err, | ||
| }) | ||
| return | ||
| } | ||
|
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| defer manager.Close() | ||
|
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| query, err := manager.Query() | ||
| if err != nil { | ||
| logger.Debug("Failed to create command query", map[string]interface{}{ | ||
| "error": err, | ||
| }) | ||
| return | ||
| } | ||
|
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| h.commands, err = h.updateQuery(query).All() | ||
| if err != nil { | ||
| logger.Debug("Failed to query commands", map[string]interface{}{ | ||
| "error": err, | ||
| }) | ||
| return | ||
| } | ||
| }) | ||
|
|
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| return h.commands | ||
| } | ||
|
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| func (h *CobraCommandCompleteHelper) isFlagSet(name string) bool { | ||
| flags := h.cobraCommand.Flags() | ||
| return flags.Lookup(name) != nil | ||
| } | ||
|
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| func (h *CobraCommandCompleteHelper) GetNameSlice(prefix string) []string { | ||
| commands := h.getCommands() | ||
| results := make([]string, 0, len(commands)) | ||
|
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| for _, command := range commands { | ||
| name := command.GetName() | ||
| if strings.HasPrefix(name, prefix) { | ||
| results = append(results, name) | ||
| } | ||
| } | ||
|
|
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| return results | ||
| } | ||
|
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| func (h *CobraCommandCompleteHelper) GetVersionSlice(prefix string) []string { | ||
| commands := h.getCommands() | ||
| results := make([]string, 0, len(commands)) | ||
|
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| for _, command := range commands { | ||
| version := command.GetVersion() | ||
| if strings.HasPrefix(version, prefix) { | ||
| results = append(results, version) | ||
| } | ||
| } | ||
|
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| return results | ||
| } | ||
|
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| func (h *CobraCommandCompleteHelper) GetLocationSlice(prefix string) []string { | ||
| commands := h.getCommands() | ||
| results := make([]string, 0, len(commands)) | ||
|
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| for _, command := range commands { | ||
| location := command.GetLocation() | ||
| if strings.HasPrefix(location, prefix) { | ||
| results = append(results, location) | ||
| } | ||
| } | ||
|
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| return results | ||
| } | ||
|
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| func (h *CobraCommandCompleteHelper) RegisterNameFunc() error { | ||
| return h.cobraCommand.RegisterFlagCompletionFunc( | ||
| h.flagName, | ||
| func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { | ||
| return h.GetNameSlice(toComplete), cobra.ShellCompDirectiveDefault | ||
| }, | ||
| ) | ||
| } | ||
|
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| func (h *CobraCommandCompleteHelper) RegisterVersionFunc() error { | ||
| return h.cobraCommand.RegisterFlagCompletionFunc( | ||
| h.flagVersion, | ||
| func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { | ||
| return h.GetVersionSlice(toComplete), cobra.ShellCompDirectiveDefault | ||
| }, | ||
| ) | ||
| } | ||
|
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| func (h *CobraCommandCompleteHelper) RegisterLocationFunc() error { | ||
| return h.cobraCommand.RegisterFlagCompletionFunc( | ||
| h.flagLocation, | ||
| func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { | ||
| return h.GetLocationSlice(toComplete), cobra.ShellCompDirectiveDefault | ||
| }, | ||
| ) | ||
| } | ||
|
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| func (h *CobraCommandCompleteHelper) RegisterAll() error { | ||
| mappings := map[string]func() error{ | ||
| h.flagName: h.RegisterNameFunc, | ||
| h.flagVersion: h.RegisterVersionFunc, | ||
| h.flagLocation: h.RegisterLocationFunc, | ||
| } | ||
|
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| for name, fn := range mappings { | ||
| if h.isFlagSet(name) { | ||
| err := fn() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| } | ||
|
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| return nil | ||
| } | ||
|
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| func NewCobraCommandCompleteHelper(cmd *cobra.Command, provider core.CommandProvider) *CobraCommandCompleteHelper { | ||
| return &CobraCommandCompleteHelper{ | ||
| managerProvider: provider, | ||
| cobraCommand: cmd, | ||
| commands: make([]core.Command, 0), | ||
| flagName: "name", | ||
| flagVersion: "version", | ||
| flagLocation: "location", | ||
| flagActivate: "activate", | ||
| } | ||
| } | ||
|
|
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| func NewDefaultCobraCommandCompleteHelper(cmd *cobra.Command) *CobraCommandCompleteHelper { | ||
| return NewCobraCommandCompleteHelper(cmd, core.CommandProviderDefault) | ||
| } |
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