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Add support for plugin manager within micro

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This commit is contained in:
Zachary Yedidia
2020-02-02 14:20:39 -05:00
parent 09ea82c97e
commit b0624cb66e
6 changed files with 190 additions and 129 deletions
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32
internal/config/plugin.go
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@@ -8,6 +8,7 @@ import (
ulua "github.com/zyedidia/micro/internal/lua"
)
// ErrNoSuchFunction is returned when Call is executed on a function that does not exist
var ErrNoSuchFunction = errors.New("No such function exists")
// LoadAllPlugins loads all detected plugins (in runtime/plugins and ConfigDir/plugins)
@@ -65,6 +66,7 @@ func RunPluginFnBool(fn string, args ...lua.LValue) (bool, error) {
return retbool, reterr
}
// Plugin stores information about the source files/info for a plugin
type Plugin struct {
DirName string // name of plugin folder
Name string // name of plugin
@@ -74,6 +76,7 @@ type Plugin struct {
Default bool // pre-installed plugin
}
// IsEnabled returns if a plugin is enabled
func (p *Plugin) IsEnabled() bool {
if v, ok := GlobalSettings[p.Name]; ok {
return v.(bool) && p.Loaded
@@ -81,13 +84,15 @@ func (p *Plugin) IsEnabled() bool {
return true
}
// Plugins is a list of all detected plugins (enabled or disabled)
var Plugins []*Plugin
// Load creates an option for the plugin and runs all source files
func (p *Plugin) Load() error {
if v, ok := GlobalSettings[p.Name]; ok && !v.(bool) {
return nil
}
for _, f := range p.Srcs {
if v, ok := GlobalSettings[p.Name]; ok && !v.(bool) {
return nil
}
dat, err := f.Data()
if err != nil {
return err
@@ -96,12 +101,13 @@ func (p *Plugin) Load() error {
if err != nil {
return err
}
p.Loaded = true
RegisterGlobalOption(p.Name, true)
}
p.Loaded = true
RegisterGlobalOption(p.Name, true)
return nil
}
// Call calls a given function in this plugin
func (p *Plugin) Call(fn string, args ...lua.LValue) (lua.LValue, error) {
plug := ulua.L.GetGlobal(p.Name)
if plug == lua.LNil {
@@ -125,7 +131,23 @@ func (p *Plugin) Call(fn string, args ...lua.LValue) (lua.LValue, error) {
return ret, nil
}
// FindPlugin returns the plugin with the given name
func FindPlugin(name string) *Plugin {
var pl *Plugin
for _, p := range Plugins {
if !p.IsEnabled() {
continue
}
if p.Name == name {
pl = p
break
}
}
return pl
}
// FindAnyPlugin does not require the plugin to be enabled
func FindAnyPlugin(name string) *Plugin {
var pl *Plugin
for _, p := range Plugins {
if p.Name == name {