feat: add support for i18n (#1319)

Cargo.toml

@@ -61,12 +61,14 @@ petgraph = "0.6.5"
 pretty_assertions = "1.4.1"
 rand = "0.8.5"
 ratatui = "0.28.1"
+rust-i18n = "3.1.2"
 serde = { version = "1.0.201", default-features = false }
 serde_json = { version = "1.0.117", default-features = false }
 serde_with = "3.9.0"
 serde_yaml = "=0.9.33"
 socket2 = "0.5.7"
 strum = { version = "0.26.3", default-features = false }
+sys-locale = "0.3.1"
 test-case = "3.3.1"
 thiserror = "1.0.60"
 tokio = "1.40.0"
@@ -76,6 +78,7 @@ tracing = "0.1.40"
 tracing-chrome = "0.7.2"
 tracing-subscriber = { version = "0.3.18", default-features = false }
 tun2 = "2.0.9"
+unicode-width = "0.2.0"
 widestring = "1.0.2"
 windows-sys = "0.52.0"
 

crates/trippy-core/src/config.rs

@@ -88,15 +88,6 @@ impl PrivilegeMode {
     }
 }
 
-impl Display for PrivilegeMode {
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        match self {
-            Self::Privileged => write!(f, "privileged"),
-            Self::Unprivileged => write!(f, "unprivileged"),
-        }
-    }
-}
-
 /// The ICMP extension parsing mode.
 #[derive(Debug, Copy, Clone, Eq, PartialEq)]
 pub enum IcmpExtensionParseMode {

crates/trippy-tui/Cargo.toml

@@ -42,15 +42,18 @@ itertools.workspace = true
 maxminddb.workspace = true
 petgraph.workspace = true
 ratatui.workspace = true
+rust-i18n.workspace = true
 serde = { workspace = true, default-features = false, features = [ "derive" ] }
 serde_json.workspace = true
 serde_with.workspace = true
 strum = { workspace = true, default-features = false, features = [ "std", "derive" ] }
+sys-locale.workspace = true
 thiserror.workspace = true
 toml = { workspace = true, default-features = false, features = [ "parse" ] }
 tracing-chrome.workspace = true
 tracing-subscriber = { workspace = true, default-features = false, features = [ "env-filter", "json" ] }
 tracing.workspace = true
+unicode-width.workspace = true
 
 [dev-dependencies]
 insta = { workspace = true, features = ["serde"] }

crates/trippy-tui/build.rs

@@ -0,0 +1,2 @@
+// A no-op build script to trigger a recompilation when the locales change.
+fn main() {}

crates/trippy-tui/locales/app.yml

@@ -0,0 +1,221 @@
+_version: 2
+trippy:
+  en: "trippy"
+auto:
+  en: "auto"
+on:
+  en: "on"
+off:
+  en: "off"
+yes:
+  en: "Yes"
+no:
+  en: "No"
+none:
+  en: "none"
+hidden:
+  en: "Hidden"
+flow:
+  en: "flow"
+flows:
+  en: "flows"
+target:
+  en: "Target"
+config:
+  en: "Config"
+status:
+  en: "Status"
+protocol:
+  en: "protocol"
+as-info:
+  en: "as-info"
+details:
+  en: "details"
+max-hosts:
+  en: "max-hosts"
+privacy:
+  en: "privacy"
+privileged:
+  en: "privileged"
+unprivileged:
+  en: "unprivileged"
+na:
+  en: "n/a"
+discovered:
+  en: "discovered %{hop_count} hops"
+discovered_flows:
+  en: "discovered %{hop_count} hops and %{flow_count} unique %{plural_flows}"
+unknown:
+  en: "unknown"
+icmp:
+  en: "icmp"
+udp:
+  en: "udp"
+tcp:
+  en: "tcp"
+status_failures:
+  en: "%{failure_count} of %{total_probes} (%{failure_rate}%) probes failed"
+status_failed:
+  en: "Failed"
+status_running:
+  en: "Running"
+status_frozen:
+  en: "Frozen"
+awaiting_data:
+  en: "Awaiting data..."
+header_help:
+  en: "elp"
+header_settings:
+  en: "ettings"
+header_quit:
+  en: "uit"
+title_hops:
+  en: "Hops"
+title_frequency:
+  en: "Frequency"
+title_samples:
+  en: "Samples"
+title_traces:
+  en: "Traces"
+title_flows:
+  en: "Flows"
+title_map:
+  en: "Map"
+title_help:
+  en: "Help"
+title_settings:
+  en: "Settings"
+bsod_failed:
+  en: "Trippy Failed :("
+bsod_quit:
+  en: "Press q to quit"
+hop:
+  en: "Hop"
+rtt:
+  en: "RTT"
+title_chart:
+  en: "Chart"
+samples:
+  en: "Samples"
+host:
+  en: "Host"
+no_response:
+  en: "No response"
+dns_failed:
+  en: "Failed"
+dns_timeout:
+  en: "Timeout"
+labels:
+  en: "labels"
+not_enabled:
+  en: "not enabled"
+not_found:
+  en: "not found"
+awaited:
+  en: "awaited"
+name:
+  en: "Name"
+info:
+  en: "Info"
+geo:
+  en: "Geo"
+pos:
+  en: "Pos"
+ext:
+  en: "Ext"
+help_tagline:
+  en: "A network diagnostic tool"
+help_show_settings:
+  en: "Press [%{key}] to show all settings"
+help_show_bindings:
+  en: "Press [%{key}] to show all bindings"
+help_show_columns:
+  en: "Press [%{key}] to show all columns"
+help_license:
+  en: "Distributed under the Apache License 2.0"
+help_copyright:
+  en: "Copyright 2022 Trippy Contributors"
+geoip_not_enabled:
+  en: "GeoIp not enabled"
+geoip_no_data_for_hop:
+  en: "No GeoIp data for hop"
+geoip_multiple_data_for_hop:
+  en: "Multiple GeoIp locations for hop"
+kilometer:
+  en: "km"
+settings_info:
+  en: "Info"
+settings_tab_tui_title:
+  en: "Tui"
+settings_tab_trace_title:
+  en: "Trace"
+settings_tab_dns_title:
+  en: "DNS"
+settings_tab_geoip_title:
+  en: "GeoIp"
+settings_tab_bindings_title:
+  en: "Bindings"
+settings_tab_theme_title:
+  en: "Theme"
+settings_tab_columns_title:
+  en: "Columns"
+settings_tab_tui_desc:
+  en: "Settings which control how data is displayed in this Tui"
+settings_tab_trace_desc:
+  en: "Settings which control the tracing strategy"
+settings_tab_dns_desc:
+  en: "Settings which control how DNS lookups are performed"
+settings_tab_geoip_desc:
+  en: "Settings relating to GeoIp"
+settings_tab_bindings_desc:
+  en: "Tui key bindings"
+settings_tab_theme_desc:
+  en: "Tui theme colors"
+settings_tab_columns_desc:
+  en: "Tui table columns.  Press [%{c}] to toggle a column on or off and use the [%{d}] and [%{u}] keys to change the column order."
+settings_table_header_setting:
+  en: "Setting"
+settings_table_header_value:
+  en: "Value"
+column_host:
+  en: "Host"
+column_loss_pct:
+  en: "Loss%"
+column_snd:
+  en: "Snd"
+column_recv:
+  en: "Recv"
+column_last:
+  en: "Last"
+column_avg:
+  en: "Avg"
+column_best:
+  en: "Best"
+column_wrst:
+  en: "Wrst"
+column_stdev:
+  en: "StDev"
+column_sts:
+  en: "Sts"
+column_jttr:
+  en: "Jttr"
+column_javg:
+  en: "Javg"
+column_jmax:
+  en: "Jmax"
+column_jint:
+  en: "Jint"
+column_sprt:
+  en: "Sprt"
+column_dprt:
+  en: "Dprt"
+column_seq:
+  en: "Seq"
+column_type:
+  en: "Type"
+column_code:
+  en: "Code"
+column_nat:
+  en: "Nat"
+column_fail:
+  en: "Fail"

crates/trippy-tui/src/app.rs

@@ -1,6 +1,7 @@
 use crate::config::{LogFormat, LogSpanEvents, Mode, TrippyConfig};
 use crate::frontend::TuiConfig;
 use crate::geoip::GeoIpLookup;
+use crate::locale::set_locale;
 use crate::{frontend, report};
 use anyhow::{anyhow, Error};
 use std::net::IpAddr;
@@ -14,6 +15,7 @@ use trippy_privilege::Privilege;
 
 /// Run the trippy application.
 pub fn run_trippy(cfg: &TrippyConfig, pid: u16) -> anyhow::Result<()> {
+    set_locale(cfg.tui_locale.as_deref());
     let _guard = configure_logging(cfg);
     let resolver = start_dns_resolver(cfg)?;
     let geoip_lookup = create_geoip_lookup(cfg)?;

crates/trippy-tui/src/config.rs

@@ -313,6 +313,7 @@ pub struct TrippyConfig {
     pub tui_icmp_extension_mode: IcmpExtensionMode,
     pub tui_geoip_mode: GeoIpMode,
     pub tui_max_addrs: Option<u8>,
+    pub tui_locale: Option<String>,
     pub tui_theme: TuiTheme,
     pub tui_bindings: TuiBindings,
     pub mode: Mode,
@@ -537,6 +538,7 @@ impl TrippyConfig {
             cfg_file_dns.dns_resolve_method,
             constants::DEFAULT_DNS_RESOLVE_METHOD,
         );
+        let tui_locale = cfg_layer_opt(args.tui_locale, cfg_file_tui.tui_locale);
         let dns_lookup_as_info = cfg_layer_bool_flag(
             args.dns_lookup_as_info,
             cfg_file_dns.dns_lookup_as_info,
@@ -697,6 +699,7 @@ impl TrippyConfig {
             tui_icmp_extension_mode,
             tui_geoip_mode,
             tui_max_addrs,
+            tui_locale,
             tui_theme,
             tui_bindings,
             mode,
@@ -749,6 +752,7 @@ impl Default for TrippyConfig {
             tui_icmp_extension_mode: constants::DEFAULT_TUI_ICMP_EXTENSION_MODE,
             tui_geoip_mode: constants::DEFAULT_TUI_GEOIP_MODE,
             tui_max_addrs: None,
+            tui_locale: None,
             tui_theme: TuiTheme::default(),
             tui_bindings: TuiBindings::default(),
             mode: constants::DEFAULT_MODE,

crates/trippy-tui/src/config/cmd.rs

@@ -220,6 +220,10 @@ pub struct Args {
     #[arg(long)]
     pub tui_privacy_max_ttl: Option<u8>,
 
+    /// The locale to use for the TUI [default: auto]
+    #[arg(long)]
+    pub tui_locale: Option<String>,
+
     /// The TUI theme colors [item=color,item=color,..]
     #[arg(long, value_delimiter(','), value_parser = parse_tui_theme_color_value)]
     pub tui_theme_colors: Vec<(TuiThemeItem, TuiColor)>,

crates/trippy-tui/src/config/file.rs

@@ -247,6 +247,7 @@ pub struct ConfigTui {
     pub tui_max_addrs: Option<u8>,
     pub geoip_mmdb_file: Option<String>,
     pub tui_custom_columns: Option<String>,
+    pub tui_locale: Option<String>,
     #[serde(rename = "tui-max-samples")]
     pub deprecated_tui_max_samples: Option<usize>,
     #[serde(rename = "tui-max-flows")]
@@ -265,6 +266,7 @@ impl Default for ConfigTui {
             tui_icmp_extension_mode: Some(super::constants::DEFAULT_TUI_ICMP_EXTENSION_MODE),
             tui_geoip_mode: Some(super::constants::DEFAULT_TUI_GEOIP_MODE),
             tui_max_addrs: Some(super::constants::DEFAULT_TUI_MAX_ADDRS),
+            tui_locale: None,
             geoip_mmdb_file: None,
             deprecated_tui_max_samples: None,
             deprecated_tui_max_flows: None,