example.rs

  1use crate::PredictionProvider;
  2use crate::paths::WORKTREES_DIR;
  3use crate::qa::QaResult;
  4use anyhow::{Context as _, Result};
  5use collections::HashMap;
  6use edit_prediction::example_spec::ExampleSpec;
  7use edit_prediction::udiff::OpenedBuffers;
  8use gpui::Entity;
  9use http_client::Url;
 10use language::{Anchor, Buffer};
 11use project::Project;
 12use serde::{Deserialize, Serialize};
 13use std::{
 14    borrow::Cow,
 15    collections::VecDeque,
 16    io::Read,
 17    path::{Path, PathBuf},
 18    sync::Arc,
 19};
 20use zeta_prompt::RelatedFile;
 21
 22#[derive(Clone, Debug, Serialize, Deserialize)]
 23pub struct Example {
 24    #[serde(flatten)]
 25    pub spec: ExampleSpec,
 26
 27    /// The full content of the file where an edit is being predicted, and the
 28    /// actual cursor offset.
 29    #[serde(skip_serializing_if = "Option::is_none")]
 30    pub prompt_inputs: Option<ExamplePromptInputs>,
 31
 32    /// The input and expected output from the edit prediction model.
 33    #[serde(skip_serializing_if = "Option::is_none")]
 34    pub prompt: Option<ExamplePrompt>,
 35
 36    /// The actual predictions from the model.
 37    #[serde(default, skip_serializing_if = "Vec::is_empty")]
 38    pub predictions: Vec<ExamplePrediction>,
 39
 40    /// The scores, for how well the actual predictions match the expected
 41    /// predictions.
 42    #[serde(default, skip_serializing_if = "Vec::is_empty")]
 43    pub score: Vec<ExampleScore>,
 44
 45    /// QA evaluation results for each prediction (indexed parallel to `predictions`).
 46    #[serde(default, skip_serializing_if = "Vec::is_empty")]
 47    pub qa: Vec<Option<QaResult>>,
 48
 49    /// The application state used to process this example.
 50    #[serde(skip)]
 51    pub state: Option<ExampleState>,
 52}
 53
 54#[derive(Clone, Debug)]
 55pub struct ExampleState {
 56    pub project: Entity<Project>,
 57    pub buffer: Entity<Buffer>,
 58    pub cursor_position: Anchor,
 59    pub _open_buffers: OpenedBuffers,
 60}
 61
 62#[derive(Clone, Debug, Serialize, Deserialize)]
 63pub struct ExamplePromptInputs {
 64    pub content: String,
 65    pub cursor_row: u32,
 66    pub cursor_column: u32,
 67    pub cursor_offset: usize,
 68    #[serde(default, skip_serializing_if = "Option::is_none")]
 69    pub excerpt_start_row: Option<u32>,
 70    pub edit_history: Vec<Arc<zeta_prompt::Event>>,
 71    pub related_files: Option<Vec<RelatedFile>>,
 72}
 73
 74#[derive(Clone, Debug, Serialize, Deserialize)]
 75pub struct ExamplePrompt {
 76    pub input: String,
 77    pub expected_output: String,
 78    pub rejected_output: Option<String>, // For DPO
 79    pub provider: PredictionProvider,
 80}
 81
 82#[derive(Clone, Debug, Serialize, Deserialize)]
 83pub struct ExamplePrediction {
 84    #[serde(default, skip_serializing_if = "Option::is_none")]
 85    pub actual_patch: Option<String>,
 86    #[serde(deserialize_with = "deserialize_null_as_empty_string")]
 87    pub actual_output: String,
 88    #[serde(default, skip_serializing_if = "Option::is_none")]
 89    pub actual_cursor_offset: Option<usize>,
 90    #[serde(default, skip_serializing_if = "Option::is_none")]
 91    pub error: Option<String>,
 92    pub provider: PredictionProvider,
 93}
 94
 95fn deserialize_null_as_empty_string<'de, D>(deserializer: D) -> Result<String, D::Error>
 96where
 97    D: serde::Deserializer<'de>,
 98{
 99    let opt = Option::<String>::deserialize(deserializer)?;
100    Ok(opt.unwrap_or_default())
101}
102
103#[derive(Clone, Debug, Serialize, Deserialize)]
104pub struct ExampleScore {
105    pub delta_chr_f: f32,
106    pub braces_disbalance: usize,
107    #[serde(default)]
108    pub exact_lines_tp: usize,
109    #[serde(default)]
110    pub exact_lines_fp: usize,
111    #[serde(default)]
112    pub exact_lines_fn: usize,
113    #[serde(default)]
114    pub reversal_ratio: f32,
115    #[serde(default, skip_serializing_if = "Option::is_none")]
116    pub cursor_distance: Option<usize>,
117    #[serde(default, skip_serializing_if = "Option::is_none")]
118    pub cursor_exact_match: Option<bool>,
119}
120
121impl Example {
122    pub fn repo_name(&self) -> Result<RepoName<'_>> {
123        // git@github.com:owner/repo.git
124        if self.spec.repository_url.contains('@') {
125            let (owner, repo) = self
126                .spec
127                .repository_url
128                .split_once(':')
129                .context("expected : in git url")?
130                .1
131                .split_once('/')
132                .context("expected / in git url")?;
133            Ok(RepoName {
134                owner: Cow::Borrowed(owner),
135                name: Cow::Borrowed(repo.trim_end_matches(".git")),
136            })
137        // http://github.com/owner/repo.git
138        } else {
139            let url = Url::parse(&self.spec.repository_url)?;
140            let mut segments = url.path_segments().context("empty http url")?;
141            let owner = segments
142                .next()
143                .context("expected owner path segment")?
144                .to_string();
145            let repo = segments
146                .next()
147                .context("expected repo path segment")?
148                .trim_end_matches(".git")
149                .to_string();
150            assert!(segments.next().is_none());
151
152            Ok(RepoName {
153                owner: Cow::Owned(owner),
154                name: Cow::Owned(repo),
155            })
156        }
157    }
158}
159
160pub struct RepoName<'a> {
161    pub owner: Cow<'a, str>,
162    pub name: Cow<'a, str>,
163}
164
165impl RepoName<'_> {
166    pub fn worktree_path(&self) -> PathBuf {
167        WORKTREES_DIR
168            .join(self.owner.as_ref())
169            .join(self.name.as_ref())
170    }
171}
172
173pub fn read_example_files(inputs: &[PathBuf]) -> Vec<Example> {
174    let mut examples = Vec::new();
175
176    for path in inputs {
177        let is_stdin = path.as_path() == Path::new("-");
178        let content = if is_stdin {
179            let mut buffer = String::new();
180            std::io::stdin()
181                .read_to_string(&mut buffer)
182                .expect("Failed to read from stdin");
183            buffer
184        } else {
185            std::fs::read_to_string(path)
186                .unwrap_or_else(|_| panic!("Failed to read path: {:?}", &path))
187        };
188        let filename = path.file_stem().unwrap().to_string_lossy().to_string();
189        let ext = if !is_stdin {
190            path.extension()
191                .map(|ext| ext.to_string_lossy().to_string())
192                .unwrap_or_else(|| panic!("{} should have an extension", path.display()))
193        } else {
194            "jsonl".to_string()
195        };
196
197        match ext.as_ref() {
198            "json" => {
199                let mut example =
200                    serde_json::from_str::<Example>(&content).unwrap_or_else(|error| {
201                        panic!("Failed to parse example file: {}\n{error}", path.display())
202                    });
203                if example.spec.name.is_empty() {
204                    example.spec.name = filename;
205                }
206                examples.push(example);
207            }
208            "jsonl" => examples.extend(
209                content
210                    .lines()
211                    .enumerate()
212                    .map(|(line_ix, line)| {
213                        let mut example =
214                            serde_json::from_str::<Example>(line).unwrap_or_else(|error| {
215                                panic!(
216                                    "Failed to parse example on {}:{}\n{error}",
217                                    path.display(),
218                                    line_ix + 1
219                                )
220                            });
221                        if example.spec.name.is_empty() {
222                            example.spec.name = format!("{filename}-{line_ix}")
223                        }
224                        example
225                    })
226                    .collect::<Vec<Example>>(),
227            ),
228            "md" => {
229                let mut example = parse_markdown_example(&content).unwrap();
230                if example.spec.name.is_empty() {
231                    example.spec.name = filename;
232                }
233                examples.push(example);
234            }
235            ext => {
236                panic!("{} has invalid example extension `{ext}`", path.display())
237            }
238        }
239    }
240
241    examples
242}
243
244pub fn sort_examples_by_repo_and_rev(examples: &mut [Example]) {
245    examples.sort_by(|a, b| {
246        a.spec
247            .repository_url
248            .cmp(&b.spec.repository_url)
249            .then(b.spec.revision.cmp(&a.spec.revision))
250    });
251}
252
253pub fn group_examples_by_repo(examples: Vec<Example>) -> VecDeque<Vec<Example>> {
254    let mut examples_by_repo: HashMap<String, Vec<Example>> = HashMap::default();
255    let mut ungrouped = Vec::new();
256    for example in examples {
257        if example.spec.repository_url.is_empty() {
258            ungrouped.push(example);
259        } else {
260            examples_by_repo
261                .entry(example.spec.repository_url.clone())
262                .or_insert_with(Vec::new)
263                .push(example);
264        }
265    }
266    let mut result: VecDeque<Vec<Example>> = examples_by_repo.into_values().collect();
267    for example in ungrouped {
268        result.push_back(vec![example]);
269    }
270    result
271}
272
273fn parse_markdown_example(input: &str) -> Result<Example> {
274    let spec = ExampleSpec::from_markdown(input)?;
275    Ok(Example {
276        spec,
277        prompt_inputs: None,
278        prompt: None,
279        predictions: Vec::new(),
280        score: Vec::new(),
281        qa: Vec::new(),
282        state: None,
283    })
284}