Plugins: Move plugin installing + uninstalling logic from CLI to plugins package (#33274)

* move guts from cli to server

* renaming + refactoring

* add pluginsDir arg

* arg fixes

* add support for repo URL override

* add funcs to interface

* use pluginID consistently

* swap args

* pass mandatory grafanaVersion field

* introduce logger interface

* create central logger for CLI

* add infra log wrapper

* re-add log initer step

* remove unused logger

* add checks for uninstalling

* improve debug blue

* make sure to close file

* fix linter issues

* remove space

* improve newline usage

* refactor packaging

* improve logger API

* fix interface func names

* close file and reformat zipslip catch

* handle G305 linter warning

* add helpful debug log

pkg/cmd/grafana-cli/utils/command_line.go

@@ -20,7 +20,7 @@ type CommandLine interface {
 	Generic(name string) interface{}
 
 	PluginDirectory() string
-	RepoDirectory() string
+	PluginRepoURL() string
 	PluginURL() string
 }
 
@@ -54,7 +54,7 @@ func (c *ContextCommandLine) PluginDirectory() string {
 	return c.String("pluginsDir")
 }
 
-func (c *ContextCommandLine) RepoDirectory() string {
+func (c *ContextCommandLine) PluginRepoURL() string {
 	return c.String("repo")
 }