WIP

crates/terminal2/src/terminal_settings.rs

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+use std::{collections::HashMap, path::PathBuf};
+
+use gpui2::{fonts, AppContext};
+use schemars::JsonSchema;
+use serde_derive::{Deserialize, Serialize};
+
+#[derive(Copy, Clone, Debug, Serialize, Deserialize, JsonSchema, PartialEq, Eq)]
+#[serde(rename_all = "snake_case")]
+pub enum TerminalDockPosition {
+    Left,
+    Bottom,
+    Right,
+}
+
+#[derive(Deserialize)]
+pub struct TerminalSettings {
+    pub shell: Shell,
+    pub working_directory: WorkingDirectory,
+    font_size: Option<f32>,
+    pub font_family: Option<String>,
+    pub line_height: TerminalLineHeight,
+    pub font_features: Option<fonts::Features>,
+    pub env: HashMap<String, String>,
+    pub blinking: TerminalBlink,
+    pub alternate_scroll: AlternateScroll,
+    pub option_as_meta: bool,
+    pub copy_on_select: bool,
+    pub dock: TerminalDockPosition,
+    pub default_width: f32,
+    pub default_height: f32,
+    pub detect_venv: VenvSettings,
+}
+
+#[derive(Clone, Debug, Default, Serialize, Deserialize, JsonSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum VenvSettings {
+    #[default]
+    Off,
+    On {
+        activate_script: Option<ActivateScript>,
+        directories: Option<Vec<PathBuf>>,
+    },
+}
+
+pub struct VenvSettingsContent<'a> {
+    pub activate_script: ActivateScript,
+    pub directories: &'a [PathBuf],
+}
+
+impl VenvSettings {
+    pub fn as_option(&self) -> Option<VenvSettingsContent> {
+        match self {
+            VenvSettings::Off => None,
+            VenvSettings::On {
+                activate_script,
+                directories,
+            } => Some(VenvSettingsContent {
+                activate_script: activate_script.unwrap_or(ActivateScript::Default),
+                directories: directories.as_deref().unwrap_or(&[]),
+            }),
+        }
+    }
+}
+
+#[derive(Clone, Copy, Debug, Default, Serialize, Deserialize, JsonSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum ActivateScript {
+    #[default]
+    Default,
+    Csh,
+    Fish,
+    Nushell,
+}
+
+#[derive(Clone, Debug, Default, Serialize, Deserialize, JsonSchema)]
+pub struct TerminalSettingsContent {
+    pub shell: Option<Shell>,
+    pub working_directory: Option<WorkingDirectory>,
+    pub font_size: Option<f32>,
+    pub font_family: Option<String>,
+    pub line_height: Option<TerminalLineHeight>,
+    pub font_features: Option<fonts::Features>,
+    pub env: Option<HashMap<String, String>>,
+    pub blinking: Option<TerminalBlink>,
+    pub alternate_scroll: Option<AlternateScroll>,
+    pub option_as_meta: Option<bool>,
+    pub copy_on_select: Option<bool>,
+    pub dock: Option<TerminalDockPosition>,
+    pub default_width: Option<f32>,
+    pub default_height: Option<f32>,
+    pub detect_venv: Option<VenvSettings>,
+}
+
+impl TerminalSettings {
+    pub fn font_size(&self, cx: &AppContext) -> Option<f32> {
+        self.font_size
+            .map(|size| theme2::adjusted_font_size(size, cx))
+    }
+}
+
+impl settings2::Setting for TerminalSettings {
+    const KEY: Option<&'static str> = Some("terminal");
+
+    type FileContent = TerminalSettingsContent;
+
+    fn load(
+        default_value: &Self::FileContent,
+        user_values: &[&Self::FileContent],
+        _: &AppContext,
+    ) -> anyhow::Result<Self> {
+        Self::load_via_json_merge(default_value, user_values)
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, JsonSchema, Default)]
+#[serde(rename_all = "snake_case")]
+pub enum TerminalLineHeight {
+    #[default]
+    Comfortable,
+    Standard,
+    Custom(f32),
+}
+
+impl TerminalLineHeight {
+    pub fn value(&self) -> f32 {
+        match self {
+            TerminalLineHeight::Comfortable => 1.618,
+            TerminalLineHeight::Standard => 1.3,
+            TerminalLineHeight::Custom(line_height) => f32::max(*line_height, 1.),
+        }
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum TerminalBlink {
+    Off,
+    TerminalControlled,
+    On,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum Shell {
+    System,
+    Program(String),
+    WithArguments { program: String, args: Vec<String> },
+}
+
+#[derive(Clone, Copy, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum AlternateScroll {
+    On,
+    Off,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum WorkingDirectory {
+    CurrentProjectDirectory,
+    FirstProjectDirectory,
+    AlwaysHome,
+    Always { directory: String },
+}