Add 'config show' command

Author: mtkennerly

CHANGELOG.md

@@ -8,6 +8,7 @@
     This can be used to satisfy the `<base>` and `<game>` path placeholders
     in cases where Ludusavi can't automatically detect the right folder.
     For more info, [see the custom games document](/docs/help/custom-games.md).
+  * CLI: `config show` command.
   * CLI: The `backup`, `restore`, `cloud upload`, and `cloud download` commands
     now support a `--gui` option for graphical dialog prompts.
   * CLI: The `backup` and `restore` commands now support a `--dump-registry` option,

src/cli.rs

@@ -14,7 +14,7 @@ use rayon::{
 
 use crate::{
     cli::{
-        parse::{Cli, CompletionShell, ManifestSubcommand, Subcommand},
+        parse::{Cli, CompletionShell, ConfigSubcommand, ManifestSubcommand, Subcommand},
         report::{report_cloud_changes, Reporter},
     },
     cloud::{CloudChange, Rclone, Remote},
@@ -664,6 +664,19 @@ pub fn run(sub: Subcommand, no_manifest_update: bool, try_manifest_update: bool)
                 Manifest::update_mut(&config, &mut cache, force)?;
             }
         },
+        Subcommand::Config { sub: config_sub } => match config_sub {
+            ConfigSubcommand::Show { api, default } => {
+                if default {
+                    config = Config::default();
+                }
+
+                if api {
+                    println!("{}", serde_json::to_string(&config).unwrap());
+                } else {
+                    println!("{}", serde_yaml::to_string(&config).unwrap());
+                }
+            }
+        },
         Subcommand::Cloud { sub: cloud_sub } => match cloud_sub {
             parse::CloudSubcommand::Set { sub } => match sub {
                 parse::CloudSetSubcommand::None => {

src/cli/parse.rs

@@ -365,6 +365,11 @@ pub enum Subcommand {
         #[clap(subcommand)]
         sub: ManifestSubcommand,
     },
+    /// Options for Ludusavi's configuration.
+    Config {
+        #[clap(subcommand)]
+        sub: ConfigSubcommand,
+    },
     /// Cloud sync.
     Cloud {
         #[clap(subcommand)]
@@ -427,6 +432,7 @@ impl Subcommand {
             Self::Backups { .. } => false,
             Self::Find { .. } => false,
             Self::Manifest { .. } => false,
+            Self::Config { .. } => false,
             Self::Cloud { sub } => sub.force(),
             Self::Wrap { force, .. } => *force,
             Self::Api { .. } => false,
@@ -442,6 +448,7 @@ impl Subcommand {
             Self::Backups { .. } => false,
             Self::Find { .. } => false,
             Self::Manifest { .. } => false,
+            Self::Config { .. } => false,
             Self::Cloud { sub } => sub.gui(),
             Self::Wrap { gui, .. } => *gui,
             Self::Api { .. } => false,
@@ -467,6 +474,20 @@ pub enum ManifestSubcommand {
     },
 }
 
+#[derive(clap::Subcommand, Clone, Debug, PartialEq, Eq)]
+pub enum ConfigSubcommand {
+    /// Print the active configuration.
+    Show {
+        /// Print information to stdout in machine-readable JSON.
+        #[clap(long)]
+        api: bool,
+
+        /// Print the default configuration.
+        #[clap(long)]
+        default: bool,
+    },
+}
+
 #[derive(clap::Subcommand, Clone, Debug, PartialEq, Eq)]
 pub enum CloudSubcommand {
     /// Configure the cloud system to use.