Struct Theme 

pub struct Theme { /* private fields */ }

Output theme controlling symbols and formatting

A theme defines the visual appearance of user-facing messages through configurable symbols. Themes enable consistent styling across all output and support different environments (terminals, CI/CD, accessibility needs).

Predefined Themes

• Emoji (default): Unicode emoji symbols for interactive terminals
• Plain: Text labels like [INFO], [OK] for CI/CD environments
• ASCII: Basic ASCII characters for limited terminal support

Examples

use torrust_tracker_deployer_lib::presentation::cli::views::Theme;

// Use emoji theme (default)
let theme = Theme::emoji();
assert_eq!(theme.progress_symbol(), "⏳");

// Use plain text theme for CI/CD
let theme = Theme::plain();
assert_eq!(theme.success_symbol(), "[OK]");

// Use ASCII theme for limited terminals
let theme = Theme::ascii();
assert_eq!(theme.error_symbol(), "[x]");

Implementations

impl Theme

pub fn emoji() -> Self

Create emoji theme with Unicode symbols (default)

Best for interactive terminals with good Unicode support. Uses emoji characters that are visually distinctive and widely supported.

Examples

use torrust_tracker_deployer_lib::presentation::cli::views::Theme;

let theme = Theme::emoji();
assert_eq!(theme.progress_symbol(), "⏳");
assert_eq!(theme.success_symbol(), "✅");
assert_eq!(theme.warning_symbol(), "⚠️");
assert_eq!(theme.error_symbol(), "❌");

pub fn plain() -> Self

Create plain text theme for CI/CD environments

Uses text labels like [INFO], [OK], [WARN], [ERROR] that work in any environment without Unicode support. Ideal for CI/CD pipelines and log aggregation systems.

Examples

use torrust_tracker_deployer_lib::presentation::cli::views::Theme;

let theme = Theme::plain();
assert_eq!(theme.progress_symbol(), "[INFO]");
assert_eq!(theme.success_symbol(), "[OK]");
assert_eq!(theme.warning_symbol(), "[WARN]");
assert_eq!(theme.error_symbol(), "[ERROR]");

pub fn ascii() -> Self

Create ASCII-only theme using basic characters

Uses simple ASCII characters that work on any terminal. Good for environments with limited character set support or when maximum compatibility is required.

Examples

use torrust_tracker_deployer_lib::presentation::cli::views::Theme;

let theme = Theme::ascii();
assert_eq!(theme.progress_symbol(), "=>");
assert_eq!(theme.success_symbol(), "[+]");
assert_eq!(theme.warning_symbol(), "[!]");
assert_eq!(theme.error_symbol(), "[x]");

pub fn progress_symbol(&self) -> &str

Get the progress symbol for this theme

pub fn success_symbol(&self) -> &str

Get the success symbol for this theme

pub fn warning_symbol(&self) -> &str

Get the warning symbol for this theme

pub fn error_symbol(&self) -> &str

Get the error symbol for this theme

pub fn detail_symbol(&self) -> &str

Get the detail symbol for this theme (verbose progress)

pub fn debug_symbol(&self) -> &str

Get the debug symbol for this theme (debug-level details)

Trait Implementations

impl Clone for Theme

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Theme

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Theme

fn default() -> Self

Create the default theme (emoji)

Examples

use torrust_tracker_deployer_lib::presentation::cli::views::Theme;

let theme = Theme::default();
assert_eq!(theme.progress_symbol(), "⏳");

impl Eq for Theme

impl PartialEq for Theme

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Theme