Make storage hidden subcommand a top-level command

This patch marks the next step in the process of restructuring the
storage command. Specifically, it promotes the storage hidden subcommand
to a top-level command, hidden.

9 files changed, 72 insertions, 63 deletions

diff --git a/nitrocli/CHANGELOG.md b/nitrocli/CHANGELOG.md
index aa40810..2840f29 100644
--- a/nitrocli/CHANGELOG.md
+++ b/nitrocli/CHANGELOG.md
@@ -1,5 +1,6 @@
 Unreleased
 ----------
+- Changed `storage hidden` subcommand to `hidden` top-level command
 - Removed `storage status` subcommand
   - Moved its output into `status` command
 
diff --git a/nitrocli/README.md b/nitrocli/README.md
index 280e494..b93119a 100644
--- a/nitrocli/README.md
+++ b/nitrocli/README.md
@@ -18,13 +18,13 @@ The following commands are currently supported:
 - config: Access the Nitrokey's configuration
   - get: Read the current configuration.
   - set: Change the configuration.
-- storage: Work with the Nitrokey's storage.
+- storage: Work with the Nitrokey Storage's storage.
   - open: Open the encrypted volume. The user PIN needs to be entered.
   - close: Close the encrypted volume.
-  - hidden:
-    - create: Create a hidden volume.
-    - open: Open a hidden volume with a password.
-    - close: Close a hidden volume.
+- hidden: Work with the Nitrokey Storage's hidden volume.
+  - create: Create a hidden volume.
+  - open: Open a hidden volume with a password.
+  - close: Close a hidden volume.
 - otp: Access one-time passwords (OTP).
   - get: Generate a one-time password.
   - set: Set an OTP slot.
diff --git a/nitrocli/doc/nitrocli.1 b/nitrocli/doc/nitrocli.1
index ee6ea11..3c5406d 100644
--- a/nitrocli/doc/nitrocli.1
+++ b/nitrocli/doc/nitrocli.1
@@ -71,7 +71,7 @@ The user PIN that is required to open the volume is queried using
 \fBnitrocli storage close
 Close the encrypted volume on the Nitrokey Storage.
 .TP
-\fBnitrocli storage hidden create \fIslot\fR \fIstart\fR \fIend\fR
+\fBnitrocli hidden create \fIslot\fR \fIstart\fR \fIend\fR
 Create a new hidden volume inside the encrypted volume. \fIslot\fR must indicate
 one of the four available slots. \fIstart\fR and \fIend\fR represent,
 respectively, the start and end position of the hidden volume inside the
@@ -79,14 +79,14 @@ encrypted volume, as a percentage of the encrypted volume's size.
 This command requires a password which is later used to look up the hidden
 volume to open. Unlike a PIN, this password is not cached by \fBgpg\-agent\fR(1).
 .TP
-\fBnitrocli storage hidden open
+\fBnitrocli hidden open
 Open a hidden volume. The volume to open is determined based on the password
 entered, which must have a minimum of six characters. Only one hidden volume can
 be active at any point in time and previously opened volumes will be
 automatically closed. Similarly, the encrypted volume will be closed if it was
 open.
 .TP
-\fBnitrocli storage hidden close
+\fBnitrocli hidden close
 Close a hidden volume.
 
 .SS One-time passwords
@@ -275,7 +275,7 @@ The new user PIN to set. This variable is only used by the \fBpin set\fR command
 for the \fBuser\fR type.
 .TP
 .B NITROCLI_PASSWORD
-A password used by commands that require one (e.g., \fBstorage hidden open\fR).
+A password used by commands that require one (e.g., \fBhidden open\fR).
 .TP
 .B NITROCLI_NO_CACHE
 If this variable is present in the environment, do not cache any inquired
@@ -288,7 +288,7 @@ Use the \fBpin clear\fR command to clear secrets from the cache.
 .SS Storage
 Create a hidden volume in the first available slot, starting at half the size of
 the encrypted volume (i.e., 50%) and stretching all the way to its end (100%):
-    $ \fBnitrocli storage hidden create 0 50 100\fR
+    $ \fBnitrocli hidden create 0 50 100\fR
 
 .SS One-time passwords
 Configure a one-time password slot with a hexadecimal secret representation:
diff --git a/nitrocli/doc/nitrocli.1.pdf b/nitrocli/doc/nitrocli.1.pdf
index 2be0f02..81abc31 100644
--- a/nitrocli/doc/nitrocli.1.pdf
+++ b/nitrocli/doc/nitrocli.1.pdf
diff --git a/nitrocli/src/args.rs b/nitrocli/src/args.rs
index 0b0429a..c37e5d2 100644
--- a/nitrocli/src/args.rs
+++ b/nitrocli/src/args.rs
@@ -121,6 +121,7 @@ impl From<DeviceModel> for nitrokey::Model {
 #[allow(unused_doc_comments)]
 Enum! {Command, [
   Config => ("config", config),
+  Hidden => ("hidden", hidden),
   Lock => ("lock", lock),
   Otp => ("otp", otp),
   Pin => ("pin", pin),
@@ -248,7 +249,6 @@ fn reset(ctx: &mut ExecCtx<'_>, args: Vec<String>) -> Result<()> {
 
 Enum! {StorageCommand, [
   Close => ("close", storage_close),
-  Hidden => ("hidden", storage_hidden),
   Open => ("open", storage_open),
 ]}
 
@@ -295,13 +295,13 @@ fn storage_close(ctx: &mut ExecCtx<'_>, args: Vec<String>) -> Result<()> {
 }
 
 Enum! {HiddenCommand, [
-  Close => ("close", storage_hidden_close),
-  Create => ("create", storage_hidden_create),
-  Open => ("open", storage_hidden_open),
+  Close => ("close", hidden_close),
+  Create => ("create", hidden_create),
+  Open => ("open", hidden_open),
 ]}
 
-/// Execute a storage hidden subcommand.
-fn storage_hidden(ctx: &mut ExecCtx<'_>, args: Vec<String>) -> Result<()> {
+/// Execute a hidden subcommand.
+fn hidden(ctx: &mut ExecCtx<'_>, args: Vec<String>) -> Result<()> {
   let mut subcommand = HiddenCommand::Open;
   let help = cmd_help!(subcommand);
   let mut subargs = vec![];
@@ -320,19 +320,11 @@ fn storage_hidden(ctx: &mut ExecCtx<'_>, args: Vec<String>) -> Result<()> {
   parser.stop_on_first_argument(true);
   parse(ctx, parser, args)?;
 
-  subargs.insert(
-    0,
-    format!(
-      "nitrocli {} {} {}",
-      Command::Storage,
-      StorageCommand::Hidden,
-      subcommand
-    ),
-  );
+  subargs.insert(0, format!("nitrocli {} {}", Command::Hidden, subcommand));
   subcommand.execute(ctx, subargs)
 }
 
-fn storage_hidden_create(ctx: &mut ExecCtx<'_>, args: Vec<String>) -> Result<()> {
+fn hidden_create(ctx: &mut ExecCtx<'_>, args: Vec<String>) -> Result<()> {
   let mut slot: u8 = 0;
   let mut start: u8 = 0;
   let mut end: u8 = 0;
@@ -357,23 +349,23 @@ fn storage_hidden_create(ctx: &mut ExecCtx<'_>, args: Vec<String>) -> Result<()>
   );
   parse(ctx, parser, args)?;
 
-  commands::storage_hidden_create(ctx, slot, start, end)
+  commands::hidden_create(ctx, slot, start, end)
 }
 
-fn storage_hidden_open(ctx: &mut ExecCtx<'_>, args: Vec<String>) -> Result<()> {
+fn hidden_open(ctx: &mut ExecCtx<'_>, args: Vec<String>) -> Result<()> {
   let mut parser = argparse::ArgumentParser::new();
   parser.set_description("Opens a hidden volume on a Nitrokey Storage");
   parse(ctx, parser, args)?;
 
-  commands::storage_hidden_open(ctx)
+  commands::hidden_open(ctx)
 }
 
-fn storage_hidden_close(ctx: &mut ExecCtx<'_>, args: Vec<String>) -> Result<()> {
+fn hidden_close(ctx: &mut ExecCtx<'_>, args: Vec<String>) -> Result<()> {
   let mut parser = argparse::ArgumentParser::new();
   parser.set_description("Closes the hidden volume on a Nitrokey Storage");
   parse(ctx, parser, args)?;
 
-  commands::storage_hidden_close(ctx)
+  commands::hidden_close(ctx)
 }
 
 /// Execute a config subcommand.
diff --git a/nitrocli/src/commands.rs b/nitrocli/src/commands.rs
index d1ded11..6374611 100644
--- a/nitrocli/src/commands.rs
+++ b/nitrocli/src/commands.rs
@@ -389,12 +389,7 @@ pub fn storage_close(ctx: &mut args::ExecCtx<'_>) -> Result<()> {
 }
 
 /// Create a hidden volume.
-pub fn storage_hidden_create(
-  ctx: &mut args::ExecCtx<'_>,
-  slot: u8,
-  start: u8,
-  end: u8,
-) -> Result<()> {
+pub fn hidden_create(ctx: &mut args::ExecCtx<'_>, slot: u8, start: u8, end: u8) -> Result<()> {
   let device = get_storage_device(ctx)?;
   let pwd_entry = pinentry::PwdEntry::from(&device)?;
   let pwd = if let Some(pwd) = &ctx.password {
@@ -412,7 +407,7 @@ pub fn storage_hidden_create(
 }
 
 /// Open a hidden volume.
-pub fn storage_hidden_open(ctx: &mut args::ExecCtx<'_>) -> Result<()> {
+pub fn hidden_open(ctx: &mut args::ExecCtx<'_>) -> Result<()> {
   let device = get_storage_device(ctx)?;
   let pwd_entry = pinentry::PwdEntry::from(&device)?;
   let pwd = if let Some(pwd) = &ctx.password {
@@ -434,7 +429,7 @@ pub fn storage_hidden_open(ctx: &mut args::ExecCtx<'_>) -> Result<()> {
 }
 
 /// Close a previously opened hidden volume.
-pub fn storage_hidden_close(ctx: &mut args::ExecCtx<'_>) -> Result<()> {
+pub fn hidden_close(ctx: &mut args::ExecCtx<'_>) -> Result<()> {
   unsafe { sync() };
 
   get_storage_device(ctx)?
diff --git a/nitrocli/src/tests/hidden.rs b/nitrocli/src/tests/hidden.rs
new file mode 100644
index 0000000..483a801
--- /dev/null
+++ b/nitrocli/src/tests/hidden.rs
@@ -0,0 +1,44 @@
+// hidden.rs
+
+// *************************************************************************
+// * Copyright (C) 2019 Daniel Mueller (deso@posteo.net)                   *
+// *                                                                       *
+// * This program is free software: you can redistribute it and/or modify  *
+// * it under the terms of the GNU General Public License as published by  *
+// * the Free Software Foundation, either version 3 of the License, or     *
+// * (at your option) any later version.                                   *
+// *                                                                       *
+// * This program is distributed in the hope that it will be useful,       *
+// * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+// * GNU General Public License for more details.                          *
+// *                                                                       *
+// * You should have received a copy of the GNU General Public License     *
+// * along with this program.  If not, see <http://www.gnu.org/licenses/>. *
+// *************************************************************************
+
+use super::*;
+
+#[test_device]
+fn hidden_create_open_close(device: nitrokey::Storage) -> crate::Result<()> {
+  let mut ncli = Nitrocli::with_dev(device);
+  let out = ncli.handle(&["hidden", "create", "0", "50", "100"])?;
+  assert!(out.is_empty());
+
+  let out = ncli.handle(&["hidden", "open"])?;
+  assert!(out.is_empty());
+
+  let device = nitrokey::Storage::connect()?;
+  assert!(!device.get_status()?.encrypted_volume.active);
+  assert!(device.get_status()?.hidden_volume.active);
+  drop(device);
+
+  let out = ncli.handle(&["hidden", "close"])?;
+  assert!(out.is_empty());
+
+  let device = nitrokey::Storage::connect()?;
+  assert!(!device.get_status()?.encrypted_volume.active);
+  assert!(!device.get_status()?.hidden_volume.active);
+
+  Ok(())
+}
diff --git a/nitrocli/src/tests/mod.rs b/nitrocli/src/tests/mod.rs
index b1e1618..2d6f93c 100644
--- a/nitrocli/src/tests/mod.rs
+++ b/nitrocli/src/tests/mod.rs
@@ -37,6 +37,7 @@ const NITROKEY_DEFAULT_USER_PIN: &str = "123456";
 fn dummy() {}
 
 mod config;
+mod hidden;
 mod lock;
 mod otp;
 mod pin;
diff --git a/nitrocli/src/tests/storage.rs b/nitrocli/src/tests/storage.rs
index 5b45bdc..a1c6ecf 100644
--- a/nitrocli/src/tests/storage.rs
+++ b/nitrocli/src/tests/storage.rs
@@ -88,27 +88,3 @@ fn encrypted_open_close(device: nitrokey::Storage) -> crate::Result<()> {
 
   Ok(())
 }
-
-#[test_device]
-fn hidden_create_open_close(device: nitrokey::Storage) -> crate::Result<()> {
-  let mut ncli = Nitrocli::with_dev(device);
-  let out = ncli.handle(&["storage", "hidden", "create", "0", "50", "100"])?;
-  assert!(out.is_empty());
-
-  let out = ncli.handle(&["storage", "hidden", "open"])?;
-  assert!(out.is_empty());
-
-  let device = nitrokey::Storage::connect()?;
-  assert!(!device.get_status()?.encrypted_volume.active);
-  assert!(device.get_status()?.hidden_volume.active);
-  drop(device);
-
-  let out = ncli.handle(&["storage", "hidden", "close"])?;
-  assert!(out.is_empty());
-
-  let device = nitrokey::Storage::connect()?;
-  assert!(!device.get_status()?.encrypted_volume.active);
-  assert!(!device.get_status()?.hidden_volume.active);
-
-  Ok(())
-}