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cli-plugins/manager: add GoDoc for getPluginDirs, defaultSystemPluginDirs 

Add some documentation about their purpose, and document order of preference
when resolving plugins.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2024-06-19 14:02:40 +02:00
parent 64206aef76
commit 55a1f6eb73
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GPG Key ID: 76698F39D527CE8C
3 changed files with 34 additions and 2 deletions
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10
cli-plugins/manager/manager.go
View File

@ -49,6 +49,16 @@ func IsNotFound(err error) bool {
return ok
}
// getPluginDirs returns the platform-specific locations to search for plugins
// in order of preference.
//
// Plugin-discovery is performed in the following order of preference:
//
// 1. The "cli-plugins" directory inside the CLIs [config.Path] (usually "~/.docker/cli-plugins").
// 2. Additional plugin directories as configured through [ConfigFile.CLIPluginsExtraDirs].
// 3. Platform-specific defaultSystemPluginDirs.
//
// [ConfigFile.CLIPluginsExtraDirs]: https://pkg.go.dev/github.com/docker/cli@v26.1.4+incompatible/cli/config/configfile#ConfigFile.CLIPluginsExtraDirs
func getPluginDirs(cfg *configfile.ConfigFile) ([]string, error) {
var pluginDirs []string

16
cli-plugins/manager/manager_unix.go
View File

@ -2,7 +2,19 @@
package manager
// defaultSystemPluginDirs are the platform-specific locations to search
// for plugins in order of preference.
//
// Plugin-discovery is performed in the following order of preference:
//
// 1. The "cli-plugins" directory inside the CLIs config-directory (usually "~/.docker/cli-plugins").
// 2. Additional plugin directories as configured through [ConfigFile.CLIPluginsExtraDirs].
// 3. Platform-specific defaultSystemPluginDirs (as defined below).
//
// [ConfigFile.CLIPluginsExtraDirs]: https://pkg.go.dev/github.com/docker/cli@v26.1.4+incompatible/cli/config/configfile#ConfigFile.CLIPluginsExtraDirs
var defaultSystemPluginDirs = []string{
"/usr/local/lib/docker/cli-plugins", "/usr/local/libexec/docker/cli-plugins",
"/usr/lib/docker/cli-plugins", "/usr/libexec/docker/cli-plugins",
"/usr/local/lib/docker/cli-plugins",
"/usr/local/libexec/docker/cli-plugins",
"/usr/lib/docker/cli-plugins",
"/usr/libexec/docker/cli-plugins",
}

10
cli-plugins/manager/manager_windows.go
View File

@ -5,6 +5,16 @@ import (
"path/filepath"
)
// defaultSystemPluginDirs are the platform-specific locations to search
// for plugins in order of preference.
//
// Plugin-discovery is performed in the following order of preference:
//
// 1. The "cli-plugins" directory inside the CLIs config-directory (usually "~/.docker/cli-plugins").
// 2. Additional plugin directories as configured through [ConfigFile.CLIPluginsExtraDirs].
// 3. Platform-specific defaultSystemPluginDirs (as defined below).
//
// [ConfigFile.CLIPluginsExtraDirs]: https://pkg.go.dev/github.com/docker/cli@v26.1.4+incompatible/cli/config/configfile#ConfigFile.CLIPluginsExtraDirs
var defaultSystemPluginDirs = []string{
filepath.Join(os.Getenv("ProgramData"), "Docker", "cli-plugins"),
filepath.Join(os.Getenv("ProgramFiles"), "Docker", "cli-plugins"),