1 files changed, 203 insertions, 0 deletions
diff --git a/dev/ci/src/res/collect_logs.rs b/dev/ci/src/res/collect_logs.rs
new file mode 100644
index 0000000..6017168
--- /dev/null
+++ b/dev/ci/src/res/collect_logs.rs
@@ -0,0 +1,203 @@
+//! IO side of the report command: reads the collect directory once and keeps
+//! the parsed data in a resource, so chains only do computation.
+
+use std::collections::BTreeMap;
+
+use mingling::{Program, macros::program_setup};
+
+use crate::ThisProgram;
+use crate::reporter::COLLECT_DIR;
+
+/// Git commit date and short hash for the report.
+#[derive(Default, Clone, Debug)]
+pub struct GitInfo {
+    pub date: String,
+    pub commit_hash: String,
+}
+
+/// Parsed contents of the collect directory.
+#[derive(Default, Clone)]
+pub struct ResCollectLogs {
+    /// `(task, item) -> os -> ok`
+    pub statuses: BTreeMap<(String, String), BTreeMap<String, bool>>,
+    /// `(task, item) -> location`
+    pub locations: BTreeMap<(String, String), String>,
+    /// `(task, os, item) -> stripped error output (location line removed)`
+    pub err_outputs: BTreeMap<(String, String, String), String>,
+    pub git: GitInfo,
+}
+
+impl ResCollectLogs {
+    /// Reads the flat `collect/` directory — aggregate `{task}.{os}.ok` files
+    /// (`item` or `item = location` per line) and per-item
+    /// `{task}.{os}.{item}.err` files (first line is the location) — plus the
+    /// git info.
+    #[must_use]
+    pub fn read() -> Self {
+        let mut logs = Self::default();
+
+        if let Ok(entries) = std::fs::read_dir(COLLECT_DIR) {
+            for entry in entries.flatten() {
+                let file_name = entry.file_name().to_string_lossy().into_owned();
+                if let Some((task, os)) = parse_ok_name(&file_name) {
+                    // Aggregate success file: `item` or `item = location` per line.
+                    if let Ok(content) = std::fs::read_to_string(entry.path()) {
+                        for line in content.lines().filter(|l| !l.is_empty()) {
+                            let (item, location) = line
+                                .split_once('=')
+                                .map_or((line, ""), |(name, loc)| (name.trim(), loc.trim()));
+                            logs.statuses
+                                .entry((task.clone(), item.to_string()))
+                                .or_default()
+                                .insert(os.clone(), true);
+                            logs.locations
+                                .insert((task.clone(), item.to_string()), location.to_string());
+                        }
+                    }
+                } else if let Some((task, os, item)) = parse_err_name(&file_name) {
+                    let content = std::fs::read_to_string(entry.path()).unwrap_or_default();
+                    let mut lines = content.splitn(2, '\n');
+                    let location = lines.next().unwrap_or_default().to_string();
+                    let output = lines.next().unwrap_or_default().to_string();
+                    logs.statuses
+                        .entry((task.clone(), item.clone()))
+                        .or_default()
+                        .insert(os.clone(), false);
+                    logs.locations
+                        .insert((task.clone(), item.clone()), location);
+                    logs.err_outputs
+                        .insert((task, os, item), strip_ansi(&output));
+                }
+            }
+        }
+
+        logs.git = git_info();
+        logs
+    }
+}
+
+/// Parses a `{task}.{os}.ok` file name.
+fn parse_ok_name(file_name: &str) -> Option<(String, String)> {
+    let name = file_name.strip_suffix(".ok")?;
+    let mut parts = name.rsplitn(2, '.');
+    let os = parts.next()?.to_string();
+    let task = parts.next()?.to_string();
+    Some((task, os))
+}
+
+/// Parses a `{task}.{os}.{package}.err` file name.
+///
+/// Split from the right: package names cannot contain dots (cargo forbids
+/// them), while task names may.
+fn parse_err_name(file_name: &str) -> Option<(String, String, String)> {
+    let name = file_name.strip_suffix(".err")?;
+    let mut parts = name.rsplitn(3, '.');
+    let package = parts.next()?.to_string();
+    let os = parts.next()?.to_string();
+    let task = parts.next()?.to_string();
+    Some((task, os, package))
+}
+
+#[program_setup]
+pub fn report_setup(p: &mut Program<ThisProgram>) {
+    p.with_resource(ResCollectLogs::read());
+}
+
+/// Strips ANSI escape sequences from `input`.
+///
+/// Handles CSI (`ESC [ ...`), OSC (`ESC ] ...` terminated by BEL or `ESC \`)
+/// and other single-character escapes, while preserving UTF-8 text. Literal
+/// `^[` (caret-bracket, produced by some terminal captures) is normalized to
+/// `ESC` first.
+fn strip_ansi(input: &str) -> String {
+    // Normalize literal `^[` (0x5E 0x5B) to a real ESC byte.
+    let normalized = input.replace("^[", "\u{1b}");
+    let mut out = String::with_capacity(normalized.len());
+    let mut rest = normalized.as_str();
+    while let Some(idx) = rest.find('\u{1b}') {
+        out.push_str(&rest[..idx]);
+        rest = &rest[idx..];
+        rest = &rest[ansi_len(rest)..];
+    }
+    out.push_str(rest);
+    out
+}
+
+/// Byte length of the ANSI escape sequence starting at `s[0]` (`s[0]` is `ESC`).
+fn ansi_len(s: &str) -> usize {
+    let b = s.as_bytes();
+    match b.get(1) {
+        Some(b'[') => {
+            // CSI: `ESC [` params/intermediates (0x20-0x3F) then a final byte (0x40-0x7E).
+            let mut i = 2;
+            while i < b.len() {
+                let byte = b[i];
+                i += 1;
+                if (0x40..=0x7E).contains(&byte) {
+                    break;
+                }
+                if !(0x20..=0x3F).contains(&byte) {
+                    break;
+                }
+            }
+            i
+        }
+        Some(b']') => {
+            // OSC: `ESC ]` ... terminated by BEL (0x07) or `ESC \`.
+            let mut i = 2;
+            while i < b.len() {
+                let byte = b[i];
+                i += 1;
+                if byte == 0x07 {
+                    break;
+                }
+                if byte == 0x1b {
+                    if b.get(i) == Some(&b'\\') {
+                        i += 1;
+                    }
+                    break;
+                }
+            }
+            i
+        }
+        Some(_) => 2.min(b.len()),
+        None => 1,
+    }
+}
+
+/// Commit date (`YYYY-MM-DD`) and short commit hash; empty on failure.
+fn git_info() -> GitInfo {
+    let run = |args: &[&str]| {
+        std::process::Command::new("git")
+            .args(args)
+            .output()
+            .ok()
+            .filter(|o| o.status.success())
+            .map(|o| String::from_utf8_lossy(&o.stdout).trim().to_string())
+            .unwrap_or_default()
+    };
+    GitInfo {
+        date: run(&["log", "-1", "--format=%cs"]),
+        commit_hash: run(&["rev-parse", "--short", "HEAD"]),
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::strip_ansi;
+
+    #[test]
+    fn strips_csi_and_osc_and_literal_caret() {
+        let input =
+            "\u{1b}[1m\u{1b}[92mok\u{1b}[0m \u{1b}]8;;https://x\u{1b}\\done\u{1b}]8;;\u{1b}\\\n";
+        assert_eq!(strip_ansi(input), "ok done\n");
+
+        // Literal `^[` (caret-bracket) captured by some terminals.
+        assert_eq!(strip_ansi("^[[31mred^[[0m"), "red");
+    }
+
+    #[test]
+    fn preserves_utf8() {
+        assert_eq!(strip_ansi("你好\u{1b}[1m世界！\u{1b}[0m"), "你好世界！");
+    }
+}