get: allow fetching without series

fetch from devel/sid
fetch with specific dist

src/get.rs

@@ -239,20 +239,46 @@ async fn fetch_archive_sources(info: &PackageInfo, cwd: Option<&Path>, progress:
     Ok(())
 }
 
-pub async fn get(package: &str, _version: &str, series: &str, pocket: &str, _ppa: &str, cwd: Option<&Path>, progress: ProgressCallback<'_>) -> Result<(), Box<dyn Error>> {
-    if let Some(cb) = progress {
-        cb(&format!("Resolving package info for {}...", package), "", 0, 0);
-    }
-    let package_info = package_info::get(package, series, pocket).await?;
+pub async fn get(package: &str, _version: &str, series: Option<&str>, pocket: &str, _ppa: &str, dist: Option<&str>, cwd: Option<&Path>, progress: ProgressCallback<'_>) -> Result<(), Box<dyn Error>> {
+    let version_opt = if _version.is_empty() { None } else { Some(_version) };
+    
+    /* Obtain the package information, either directly in a series or with a search in all series */
+    let package_info = if let Some(s) = series {
+        if let Some(cb) = progress {
+            cb(&format!("Resolving package info for {}...", package), "", 0, 0);
+        }
 
+        // Get the package information from that series and pocket
+        package_info::get(package, s, pocket, version_opt).await?
+    } else {
+        let dist = dist.unwrap_or_else(||
+            // Use auto-detection to see if current distro is ubuntu, or fallback to debian by default
+            if std::process::Command::new("lsb_release").arg("-i").arg("-s").output()
+                .map(|o| String::from_utf8_lossy(&o.stdout).trim().to_lowercase()).unwrap_or_default() == "ubuntu" {
+                "ubuntu"
+            } else {
+                "debian"
+            }
+        );
+        
+        if let Some(cb) = progress {
+            cb(&format!("Searching for package {} in {}...", package, dist), "", 0, 0);
+        }
+
+        // Try to find the package in all series from that dist
+        package_info::find_package(package, dist, pocket, version_opt, progress).await?
+    };
+    
     let package_dir = if let Some(path) = cwd {
         path.join(package)
     } else {
         Path::new(package).to_path_buf()
     };
 
-    let info = package_info.unwrap();
-    if let Some(ref url) = info.preferred_vcs {
+    /* Fetch the package: either via git (preferred VCS) or the archive */
+    if let Some(ref url) = package_info.preferred_vcs {
+        // We have found a preferred VCS (git repository) for the package, so
+        // we fetch the package from that repo.
         if let Some(cb) = progress {
             cb(&format!("Cloning {}...", url), "", 0, 0);
         }
@@ -261,12 +287,13 @@ pub async fn get(package: &str, _version: &str, series: &str, pocket: &str, _ppa
         if let Some(cb) = progress {
             cb("Fetching orig tarball...", "", 0, 0);
         }
-        fetch_orig_tarball(&info, Some(&package_dir), progress).await?;
+        fetch_orig_tarball(&package_info, Some(&package_dir), progress).await?;
     } else {
+        // Fallback to archive fetching
         if let Some(cb) = progress {
             cb("Downloading from archive...", "", 0, 0);
         }
-        fetch_archive_sources(&info, Some(cwd.unwrap_or(Path::new("."))), progress).await?;
+        fetch_archive_sources(&package_info, Some(cwd.unwrap_or(Path::new("."))), progress).await?;
     }
 
     Ok(())
@@ -276,7 +303,7 @@ pub async fn get(package: &str, _version: &str, series: &str, pocket: &str, _ppa
 mod tests {
     use super::*;
 
-    async fn test_get_package_end_to_end(package: &str, series: &str) {
+    async fn test_get_package_end_to_end(package: &str, series: Option<&str>) {
         // This test verifies that 'pkh get' clones the repo and fetches the tarball.
         
         // Use a temp directory as working directory
@@ -284,10 +311,10 @@ mod tests {
         let cwd = temp_dir.path();
         
         // Main 'get' command: the one we want to test
-        get(package, "", series, "", "", Some(cwd), None).await.unwrap();
+        get(package, "", series, "", "", None, Some(cwd), None).await.unwrap();
         
         let package_dir = cwd.join(package);
-        assert!(package_dir.exists(), "Package directory not created");
+        assert!(package_dir.exists());
         let package_source_dir = package_dir.join(package);
         assert!(package_source_dir.exists(), "Package git repo directory not created");
         assert!(package_source_dir.join("debian").exists(), "debian directory not present");
@@ -308,24 +335,29 @@ mod tests {
 
     #[tokio::test]
     async fn test_get_hello_ubuntu_end_to_end() {
-        test_get_package_end_to_end("hello", "noble").await;
+        test_get_package_end_to_end("hello", Some("noble")).await;
     }
     #[tokio::test]
     async fn test_get_hello_debian_end_to_end() {
-        test_get_package_end_to_end("hello", "bookworm").await;
+        test_get_package_end_to_end("hello", Some("bookworm")).await;
     }
 
     #[tokio::test]
     async fn test_get_2048_universe_ubuntu_end_to_end() {
-        test_get_package_end_to_end("2048", "noble").await;
+        test_get_package_end_to_end("2048", Some("noble")).await;
     }
     #[tokio::test]
     async fn test_get_1oom_contrib_debian_end_to_end() {
-        test_get_package_end_to_end("1oom", "trixie").await;
+        test_get_package_end_to_end("1oom", Some("trixie")).await;
     }
 
     #[tokio::test]
     async fn test_get_agg_svn_fallback_ok() {
-        test_get_package_end_to_end("agg", "trixie").await;
+        test_get_package_end_to_end("agg", Some("trixie")).await;
+    }
+
+    #[tokio::test]
+    async fn test_get_hello_latest_end_to_end() {
+        test_get_package_end_to_end("hello", None).await;
     }
 }

src/main.rs

@@ -40,6 +40,10 @@ fn main() {
                     arg!(-s --series <series> "Target package distribution series")
                         .required(false)
                 )
+                .arg(
+                    arg!(-d --dist <dist> "Target package distribution (debian, ubuntu)")
+                        .required(false)
+                )
                 .arg(
                     arg!(-v --version <version> "Target package version")
                         .required(false)
@@ -63,14 +67,15 @@ fn main() {
     match matches.subcommand() {
         Some(("get", sub_matches)) => {
             let package = sub_matches.get_one::<String>("package").expect("required");
-            let series = sub_matches.get_one::<String>("series").map(|s| s.as_str()).unwrap_or("");
+            let series = sub_matches.get_one::<String>("series").map(|s| s.as_str());
+            let dist = sub_matches.get_one::<String>("dist").map(|s| s.as_str());
             let version = sub_matches.get_one::<String>("version").map(|s| s.as_str()).unwrap_or("");
             let ppa = sub_matches.get_one::<String>("ppa").map(|s| s.as_str()).unwrap_or("");
             
             // Since get is async, we need to block on it
             let (pb, mut progress_callback) = ui::create_progress_bar(&multi);
 
-            if let Err(e) = rt.block_on(get(package, version, series, "", ppa, None, Some(&mut progress_callback))) {
+            if let Err(e) = rt.block_on(get(package, version, series, "", ppa, dist, None, Some(&mut progress_callback))) {
                 pb.finish_and_clear();
                 error!("{}", e);
                 std::process::exit(1);

src/package_info.rs

@@ -3,8 +3,10 @@ use std::io::Read;
 use std::collections::HashMap;
 use std::error::Error;
 use std::path::Path;
+use chrono::NaiveDate;
 
-use log::debug;
+use log::{debug, warn};
+use crate::ProgressCallback;
 
 const BASE_URL_UBUNTU: &str = "http://archive.ubuntu.com/ubuntu";
 const BASE_URL_DEBIAN: &str = "http://deb.debian.org/debian";
@@ -23,41 +25,60 @@ async fn check_launchpad_repo(package: &str) -> Result<Option<String>, Box<dyn E
     }
 }
 
-async fn get_series_from_url(url: &str) -> Result<Vec<String>, Box<dyn Error>> {
-    let content = reqwest::get(url).await?.text().await?;
+fn parse_series_csv(content: &str) -> Result<Vec<String>, Box<dyn Error>> {
     let mut rdr = csv::ReaderBuilder::new()
         .flexible(true)
         .from_reader(content.as_bytes());
     
     let headers = rdr.headers()?.clone();
     let series_idx = headers.iter().position(|h| h == "series").ok_or("Column 'series' not found")?;
+    let created_idx = headers.iter().position(|h| h == "created").ok_or("Column 'created' not found")?;
     
-    let mut series = Vec::new();
+    let mut entries = Vec::new();
     for result in rdr.records() {
         let record = result?;
-        if let Some(s) = record.get(series_idx) {
-            series.push(s.to_string());
+        if let (Some(s), Some(c)) = (record.get(series_idx), record.get(created_idx)) {
+            if let Ok(date) = NaiveDate::parse_from_str(c, "%Y-%m-%d") {
+                entries.push((s.to_string(), date));
+            }
         }
     }
+    
+    // Sort by date descending (newest first)
+    entries.sort_by(|a, b| b.1.cmp(&a.1));
+    
+    Ok(entries.into_iter().map(|(s, _)| s).collect())
+}
+
+async fn get_ordered_series(dist: &str) -> Result<Vec<String>, Box<dyn Error>> {
+    let content = if Path::new(format!("/usr/share/distro-info/{dist}.csv").as_str()).exists() {
+        std::fs::read_to_string(format!("/usr/share/distro-info/{dist}.csv"))?
+    } else {
+        reqwest::get(format!("https://salsa.debian.org/debian/distro-info-data/-/raw/main/{dist}.csv").as_str()).await?.text().await?
+    };
+    
+    let mut series = parse_series_csv(&content)?;
+    
+    // For Debian, ensure 'sid' is first if it's not (it usually doesn't have a date or is very old/new depending on file)
+    // Actually in the file sid has 1993 date.
+    // But we want to try 'sid' (unstable) first for Debian.
+    if dist == "debian" {
+        series.retain(|s| s != "sid");
+        series.insert(0, "sid".to_string());
+    }
+    
     Ok(series)
 }
 
+// Keep existing functions for compatibility or refactor them to use get_ordered_series
+async fn get_series_from_url(url: &str) -> Result<Vec<String>, Box<dyn Error>> {
+    let content = reqwest::get(url).await?.text().await?;
+    parse_series_csv(&content)
+}
+
 fn get_series_from_file(path: &str) -> Result<Vec<String>, Box<dyn Error>> {
-    let mut rdr = csv::ReaderBuilder::new()
-        .flexible(true)
-        .from_path(path)?;
-    
-    let headers = rdr.headers()?.clone();
-    let series_idx = headers.iter().position(|h| h == "series").ok_or("Column 'series' not found")?;
-    
-    let mut series = Vec::new();
-    for result in rdr.records() {
-        let record = result?;
-        if let Some(s) = record.get(series_idx) {
-            series.push(s.to_string());
-        }
-    }
-    Ok(series)
+    let content = std::fs::read_to_string(path)?;
+    parse_series_csv(&content)
 }
 
 pub async fn get_dist_series(dist: &str) -> Result<Vec<String>, Box<dyn Error>> {
@@ -101,6 +122,7 @@ pub struct PackageStanza {
 #[derive(Debug)]
 pub struct PackageInfo {
     pub dist: String,
+    pub series: String,
     pub stanza: PackageStanza,
     pub preferred_vcs: Option<String>,
     pub archive_url: String
@@ -151,7 +173,7 @@ async fn get_components(base_url: &str, series: &str, pocket: &str) -> Result<Ve
 * Parse a 'Sources.gz' debian package file data, to look for a target package and
 * return the data for that package stanza
 */
-fn parse_sources(data: &[u8], target_package: &str) -> Result<Option<PackageStanza>, Box<dyn Error>> {
+fn parse_sources(data: &[u8], target_package: &str, target_version: Option<&str>) -> Result<Option<PackageStanza>, Box<dyn Error>> {
     let mut d = GzDecoder::new(data);
     let mut s = String::new();
     d.read_to_string(&mut s)?;
@@ -177,6 +199,17 @@ fn parse_sources(data: &[u8], target_package: &str) -> Result<Option<PackageStan
 
         if let Some(pkg) = fields.get("Package") {
             if pkg == target_package {
+                // Check version if requested
+                if let Some(ver) = target_version {
+                    if let Some(pkg_ver) = fields.get("Version") {
+                        if pkg_ver != ver {
+                            continue;
+                        }
+                    } else {
+                        continue;
+                    }
+                }
+
                 let mut files = Vec::new();
                 if let Some(checksums) = fields.get("Checksums-Sha256") {
                     for line in checksums.lines() {
@@ -206,7 +239,7 @@ fn parse_sources(data: &[u8], target_package: &str) -> Result<Option<PackageStan
     Ok(None)
 }
 
-pub async fn get(package_name: &str, series: &str, pocket: &str) -> Result<Option<PackageInfo>, Box<dyn Error>> {
+pub async fn get(package_name: &str, series: &str, pocket: &str, version: Option<&str>) -> Result<PackageInfo, Box<dyn Error>> {
     let dist = get_dist_from_series(series).await?;
 
     // Handle Ubuntu case: Vcs-Git does not usually point to Launchpad but Salsa
@@ -246,7 +279,7 @@ pub async fn get(package_name: &str, series: &str, pocket: &str) -> Result<Optio
         
         debug!("Downloaded Sources.gz for {}/{}/{}", dist, series, component);
             
-        if let Some(stanza) = parse_sources(&compressed_data, package_name)? {
+        if let Some(stanza) = parse_sources(&compressed_data, package_name, version)? {
             if let Some(vcs) = &stanza.vcs_git {
                 if preferred_vcs.is_none() {
                     preferred_vcs = Some(vcs.clone());
@@ -254,18 +287,45 @@ pub async fn get(package_name: &str, series: &str, pocket: &str) -> Result<Optio
             }
 
             let archive_url = format!("{base_url}/{0}", stanza.directory);
-            return Ok(Some(PackageInfo {
+            return Ok(PackageInfo {
                 dist: dist,
+                series: series.to_string(),
                 stanza: stanza,
                 preferred_vcs: preferred_vcs,
                 archive_url: archive_url,
-            }));
+            });
         }
     }
     
     Err(format!("Package '{}' not found in {}/{}", package_name, dist, series).into())
 }
 
+pub async fn find_package(package_name: &str, dist: &str, pocket: &str, version: Option<&str>, progress: ProgressCallback<'_>) -> Result<PackageInfo, Box<dyn Error>> {
+    let series_list = get_ordered_series(dist).await?;
+    
+    for (i, series) in series_list.iter().enumerate() {
+        if let Some(cb) = progress {
+            cb("", &format!("Checking {}...", series), i, series_list.len());
+        }
+
+        match get(package_name, series, pocket, version).await {
+            Ok(info) => {
+                if i > 0 {
+                    warn!("Package '{}' not found in development release. Found in {}/{}.", package_name, dist, series);
+                } else {
+                    debug!("Found package '{}' in {}/{}", package_name, dist, series);
+                }
+                return Ok(info);
+            },
+            Err(_e) => {
+                continue;
+            }
+        }
+    }
+    
+    Err(format!("Package '{}' not found.", package_name).into())
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -314,13 +374,29 @@ mod tests {
         encoder.write_all(data.as_bytes()).unwrap();
         let compressed = encoder.finish().unwrap();
 
-        let info = parse_sources(&compressed, "hello").unwrap().unwrap();
+        let info = parse_sources(&compressed, "hello", None).unwrap().unwrap();
         assert_eq!(info.package, "hello");
         assert_eq!(info.version, "2.10-2");
         assert_eq!(info.directory, "pool/main/h/hello");
         assert_eq!(info.vcs_git.unwrap(), "https://salsa.debian.org/debian/hello.git");
 
-        let none = parse_sources(&compressed, "missing").unwrap();
+        let none = parse_sources(&compressed, "missing", None).unwrap();
         assert!(none.is_none());
     }
+
+    #[tokio::test]
+    async fn test_find_package_fallback() {
+        // python2.7 is in bullseye but not above
+        let info = find_package("python2.7", "debian", "", None, None).await.unwrap();
+        assert_eq!(info.stanza.package, "python2.7");
+        assert_eq!(info.series, "bullseye")
+    }
+
+    #[tokio::test]
+    async fn test_find_package_devel() {
+        // hello is in sid
+        let info = find_package("hello", "debian", "", None, None).await.unwrap();
+        assert_eq!(info.stanza.package, "hello");
+        assert_eq!(info.series, "sid")
+    }
 }