Files
codex/codex-rs/core/src/environment_context.rs
2026-01-30 11:24:18 -08:00

304 lines
10 KiB
Rust

use crate::codex::TurnContext;
use crate::shell::Shell;
use codex_protocol::models::ContentItem;
use codex_protocol::models::ResponseItem;
use codex_protocol::protocol::ENVIRONMENT_CONTEXT_CLOSE_TAG;
use codex_protocol::protocol::ENVIRONMENT_CONTEXT_OPEN_TAG;
use serde::Deserialize;
use serde::Serialize;
use std::collections::BTreeMap;
use std::path::PathBuf;
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
#[serde(rename = "environment_context", rename_all = "snake_case")]
pub(crate) struct EnvironmentContext {
pub cwd: Option<PathBuf>,
pub shell: Shell,
/// Workspace metadata, structured to support future multi-root workspaces.
#[serde(skip_serializing_if = "Option::is_none")]
pub workspace_configuration: Option<WorkspaceConfiguration>,
}
impl EnvironmentContext {
pub fn new(
cwd: Option<PathBuf>,
shell: Shell,
workspace_configuration: Option<WorkspaceConfiguration>,
) -> Self {
Self {
cwd,
shell,
workspace_configuration,
}
}
/// Compares two environment contexts, ignoring the shell. Useful when
/// comparing turn to turn, since the initial environment_context will
/// include the shell, and then it is not configurable from turn to turn.
pub fn equals_except_shell(&self, other: &EnvironmentContext) -> bool {
let EnvironmentContext {
cwd,
// should compare all fields except shell
shell: _,
..
} = other;
self.cwd == *cwd
}
pub fn diff(before: &TurnContext, after: &TurnContext, shell: &Shell) -> Self {
let cwd = if before.cwd != after.cwd {
Some(after.cwd.clone())
} else {
None
};
// Only include workspace configuration on the initial prefix message.
EnvironmentContext::new(cwd, shell.clone(), None)
}
pub fn from_turn_context(turn_context: &TurnContext, shell: &Shell) -> Self {
// Only include workspace configuration on the initial prefix message.
Self::new(Some(turn_context.cwd.clone()), shell.clone(), None)
}
}
/// Multi-root-friendly workspace metadata modeled after Cline's structure.
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
pub(crate) struct WorkspaceConfiguration {
pub workspaces: BTreeMap<String, WorkspaceEntry>,
}
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
pub(crate) struct WorkspaceEntry {
pub hint: String,
#[serde(skip_serializing_if = "Option::is_none")]
pub associated_remote_urls: Option<BTreeMap<String, String>>,
#[serde(skip_serializing_if = "Option::is_none")]
pub latest_git_commit_hash: Option<String>,
}
impl EnvironmentContext {
/// Serializes the environment context to XML. Libraries like `quick-xml`
/// require custom macros to handle Enums with newtypes, so we just do it
/// manually, to keep things simple. Output looks like:
///
/// ```xml
/// <environment_context>
/// <cwd>...</cwd>
/// <shell>...</shell>
/// </environment_context>
/// ```
pub fn serialize_to_xml(self) -> String {
let mut lines = vec![ENVIRONMENT_CONTEXT_OPEN_TAG.to_string()];
if let Some(cwd) = self.cwd {
lines.push(format!(" <cwd>{}</cwd>", cwd.to_string_lossy()));
}
let shell_name = self.shell.name();
lines.push(format!(" <shell>{shell_name}</shell>"));
if let Some(workspace_configuration) = self.workspace_configuration {
lines.push(" <workspace_configuration>".to_string());
for (path, workspace) in workspace_configuration.workspaces {
let hint = workspace.hint;
lines.push(format!(" <workspace path=\"{path}\" hint=\"{hint}\">"));
if let Some(latest_git_commit_hash) = workspace.latest_git_commit_hash {
lines.push(format!(
" <latest_git_commit_hash>{latest_git_commit_hash}</latest_git_commit_hash>"
));
}
if let Some(associated_remote_urls) = workspace.associated_remote_urls
&& !associated_remote_urls.is_empty()
{
lines.push(" <associated_remote_urls>".to_string());
for (name, url) in associated_remote_urls {
lines.push(format!(" <remote name=\"{name}\">{url}</remote>"));
}
lines.push(" </associated_remote_urls>".to_string());
}
lines.push(" </workspace>".to_string());
}
lines.push(" </workspace_configuration>".to_string());
}
lines.push(ENVIRONMENT_CONTEXT_CLOSE_TAG.to_string());
lines.join("\n")
}
}
impl From<EnvironmentContext> for ResponseItem {
fn from(ec: EnvironmentContext) -> Self {
ResponseItem::Message {
id: None,
role: "user".to_string(),
content: vec![ContentItem::InputText {
text: ec.serialize_to_xml(),
}],
end_turn: None,
}
}
}
#[cfg(test)]
mod tests {
use crate::shell::ShellType;
use super::*;
use core_test_support::test_path_buf;
use pretty_assertions::assert_eq;
use std::collections::BTreeMap;
fn fake_shell() -> Shell {
Shell {
shell_type: ShellType::Bash,
shell_path: PathBuf::from("/bin/bash"),
shell_snapshot: crate::shell::empty_shell_snapshot_receiver(),
}
}
#[test]
fn serialize_workspace_write_environment_context() {
let cwd = test_path_buf("/repo");
let context = EnvironmentContext::new(Some(cwd.clone()), fake_shell(), None);
let expected = format!(
r#"<environment_context>
<cwd>{cwd}</cwd>
<shell>bash</shell>
</environment_context>"#,
cwd = cwd.display(),
);
assert_eq!(context.serialize_to_xml(), expected);
}
#[test]
fn serialize_read_only_environment_context() {
let context = EnvironmentContext::new(None, fake_shell(), None);
let expected = r#"<environment_context>
<shell>bash</shell>
</environment_context>"#;
assert_eq!(context.serialize_to_xml(), expected);
}
#[test]
fn serialize_external_sandbox_environment_context() {
let context = EnvironmentContext::new(None, fake_shell(), None);
let expected = r#"<environment_context>
<shell>bash</shell>
</environment_context>"#;
assert_eq!(context.serialize_to_xml(), expected);
}
#[test]
fn serialize_external_sandbox_with_restricted_network_environment_context() {
let context = EnvironmentContext::new(None, fake_shell(), None);
let expected = r#"<environment_context>
<shell>bash</shell>
</environment_context>"#;
assert_eq!(context.serialize_to_xml(), expected);
}
#[test]
fn serialize_full_access_environment_context() {
let context = EnvironmentContext::new(None, fake_shell(), None);
let expected = r#"<environment_context>
<shell>bash</shell>
</environment_context>"#;
assert_eq!(context.serialize_to_xml(), expected);
}
#[test]
fn equals_except_shell_compares_cwd() {
let context1 = EnvironmentContext::new(Some(PathBuf::from("/repo")), fake_shell(), None);
let context2 = EnvironmentContext::new(Some(PathBuf::from("/repo")), fake_shell(), None);
assert!(context1.equals_except_shell(&context2));
}
#[test]
fn equals_except_shell_ignores_sandbox_policy() {
let context1 = EnvironmentContext::new(Some(PathBuf::from("/repo")), fake_shell(), None);
let context2 = EnvironmentContext::new(Some(PathBuf::from("/repo")), fake_shell(), None);
assert!(context1.equals_except_shell(&context2));
}
#[test]
fn equals_except_shell_compares_cwd_differences() {
let context1 = EnvironmentContext::new(Some(PathBuf::from("/repo1")), fake_shell(), None);
let context2 = EnvironmentContext::new(Some(PathBuf::from("/repo2")), fake_shell(), None);
assert!(!context1.equals_except_shell(&context2));
}
#[test]
fn equals_except_shell_ignores_shell() {
let context1 = EnvironmentContext::new(
Some(PathBuf::from("/repo")),
Shell {
shell_type: ShellType::Bash,
shell_path: "/bin/bash".into(),
shell_snapshot: crate::shell::empty_shell_snapshot_receiver(),
},
None,
);
let context2 = EnvironmentContext::new(
Some(PathBuf::from("/repo")),
Shell {
shell_type: ShellType::Zsh,
shell_path: "/bin/zsh".into(),
shell_snapshot: crate::shell::empty_shell_snapshot_receiver(),
},
None,
);
assert!(context1.equals_except_shell(&context2));
}
#[test]
fn serialize_environment_context_with_workspace_configuration() {
let cwd = test_path_buf("/repo");
let mut workspaces = BTreeMap::new();
workspaces.insert(
cwd.to_string_lossy().to_string(),
WorkspaceEntry {
hint: "repo".to_string(),
associated_remote_urls: Some(BTreeMap::from([(
"origin".to_string(),
"https://example.com/repo.git".to_string(),
)])),
latest_git_commit_hash: Some("abc123".to_string()),
},
);
let workspace_configuration = WorkspaceConfiguration { workspaces };
let context =
EnvironmentContext::new(Some(cwd), fake_shell(), Some(workspace_configuration));
let expected = r#"<environment_context>
<cwd>/repo</cwd>
<shell>bash</shell>
<workspace_configuration>
<workspace path="/repo" hint="repo">
<latest_git_commit_hash>abc123</latest_git_commit_hash>
<associated_remote_urls>
<remote name="origin">https://example.com/repo.git</remote>
</associated_remote_urls>
</workspace>
</workspace_configuration>
</environment_context>"#;
assert_eq!(context.serialize_to_xml(), expected);
}
}