pull: allow pulling from ppa

README.md

@@ -82,7 +82,7 @@ Missing features:
 - [ ] `pkh pull`
   - [x] Obtain package sources from git
   - [x] Obtain package sources from the archive (fallback)
-  - [ ] Obtain package source from PPA (--ppa)
+  - [x] Obtain package source from PPA (--ppa)
   - [ ] Obtain a specific version of the package
   - [x] Fetch the correct git branch for series on Ubuntu
   - [ ] Try to fetch the correct git branch for series on Debian, or fallback to the archive

src/deb/mod.rs

@@ -212,7 +212,8 @@ mod tests {
         log::debug!("Created temporary directory: {}", cwd.display());
 
         log::info!("Pulling package {} from {}...", package, series);
-        let package_info = crate::package_info::lookup(package, None, Some(series), "", dist, None)
+        let package_info =
+            crate::package_info::lookup(package, None, Some(series), "", dist, None, None)
                 .await
                 .expect("Cannot lookup package information");
         crate::pull::pull(&package_info, Some(cwd), None, true)

src/main.rs

@@ -94,14 +94,22 @@ fn main() {
             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());
-            let _ppa = sub_matches
-                .get_one::<String>("ppa")
-                .map(|s| s.as_str())
-                .unwrap_or("");
+            let ppa = sub_matches.get_one::<String>("ppa").map(|s| s.as_str());
             let archive = sub_matches.get_one::<bool>("archive").unwrap_or(&false);
 
             let (pb, progress_callback) = ui::create_progress_bar(&multi);
 
+            // Convert PPA to base URL if provided
+            let base_url = ppa.and_then(|ppa_str| {
+                // PPA format: user/ppa_name
+                let parts: Vec<&str> = ppa_str.split('/').collect();
+                if parts.len() == 2 {
+                    Some(pkh::package_info::ppa_to_base_url(parts[0], parts[1]))
+                } else {
+                    None
+                }
+            });
+
             // Since pull is async, we need to block on it
             if let Err(e) = rt.block_on(async {
                 let package_info = pkh::package_info::lookup(
@@ -110,6 +118,7 @@ fn main() {
                     series,
                     "",
                     dist,
+                    base_url.as_deref(),
                     Some(&progress_callback),
                 )
                 .await?;

src/package_info.rs

@@ -6,6 +6,18 @@ use std::io::Read;
 use crate::ProgressCallback;
 use log::{debug, warn};
 
+/// Convert a PPA specification to a base URL
+///
+/// # Arguments
+/// * user: user for the PPA
+/// * name: name of the PPA
+///
+/// # Returns
+/// * The base URL for the PPA (e.g., "https://ppa.launchpadcontent.net/user/ppa_name/ubuntu/")
+pub fn ppa_to_base_url(user: &str, name: &str) -> String {
+    format!("https://ppa.launchpadcontent.net/{}/{}/ubuntu", user, name)
+}
+
 async fn check_launchpad_repo(package: &str) -> Result<Option<String>, Box<dyn Error>> {
     let url = format!("https://git.launchpad.net/ubuntu/+source/{}", package);
     let client = reqwest::Client::builder()
@@ -178,6 +190,7 @@ async fn get(
     series: &str,
     pocket: &str,
     version: Option<&str>,
+    base_url: Option<&str>,
 ) -> Result<PackageInfo, Box<dyn Error>> {
     let dist = crate::distro_info::get_dist_from_series(series).await?;
 
@@ -191,7 +204,16 @@ async fn get(
         preferred_vcs = Some(lp_url);
     }
 
-    let base_url = crate::distro_info::get_base_url(&dist);
+    // Determine the base URL to use (either provided PPA URL or default archive)
+    let distro_base_url = crate::distro_info::get_base_url(&dist);
+    let base_url = if let Some(ppa_url) = base_url {
+        ppa_url.to_string()
+    } else {
+        distro_base_url.clone()
+    };
+
+    // If using a custom base URL (PPA), disable VCS lookup to force archive download
+    let from_ppa = base_url != distro_base_url;
 
     let components = crate::distro_info::get_components(&base_url, series, pocket).await?;
     debug!("Found components: {:?}", components);
@@ -228,6 +250,11 @@ async fn get(
                 preferred_vcs = Some(vcs.clone());
             }
 
+            // If downloading from PPA, make sure we don't use a VCS
+            if from_ppa {
+                preferred_vcs = None;
+            }
+
             let archive_url = format!("{base_url}/{0}", stanza.directory);
             return Ok(PackageInfo {
                 dist,
@@ -252,6 +279,7 @@ async fn find_package(
     dist: &str,
     pocket: &str,
     version: Option<&str>,
+    base_url: Option<&str>,
     progress: ProgressCallback<'_>,
 ) -> Result<PackageInfo, Box<dyn Error>> {
     let series_list = crate::distro_info::get_ordered_series_name(dist).await?;
@@ -268,7 +296,7 @@ async fn find_package(
         };
 
         for p in pockets {
-            match get(package_name, series, &p, version).await {
+            match get(package_name, series, &p, version, base_url).await {
                 Ok(info) => {
                     if i > 0 {
                         warn!(
@@ -297,12 +325,22 @@ async fn find_package(
 ///
 /// This function obtains package information either directly from a specific series
 /// or by searching across all series in a distribution.
+///
+/// # Arguments
+/// * `package` - The name of the package to look up
+/// * `version` - Optional specific version to look for
+/// * `series` - Optional distribution series (e.g., "noble", "bookworm")
+/// * `pocket` - Pocket to search in (e.g., "updates", "security", or "" for main)
+/// * `dist` - Optional distribution name (e.g., "ubuntu", "debian")
+/// * `base_url` - Optional base URL for the package archive (e.g., "https://ppa.launchpadcontent.net/user/ppa/ubuntu/")
+/// * `progress` - Optional progress callback
 pub async fn lookup(
     package: &str,
     version: Option<&str>,
     series: Option<&str>,
     pocket: &str,
     dist: Option<&str>,
+    base_url: Option<&str>,
     progress: ProgressCallback<'_>,
 ) -> Result<PackageInfo, Box<dyn Error>> {
     // Obtain the package information, either directly in a series or with a search in all series
@@ -317,7 +355,7 @@ pub async fn lookup(
         }
 
         // Get the package information from that series and pocket
-        get(package, s, pocket, version).await?
+        get(package, s, pocket, version, base_url).await?
     } else {
         let dist = dist.unwrap_or_else(||
             // Use auto-detection to see if current distro is ubuntu, or fallback to debian by default
@@ -331,7 +369,11 @@ pub async fn lookup(
 
         if let Some(cb) = progress {
             cb(
-                &format!("Searching for package {} in {}...", package, dist),
+                &format!(
+                    "Searching for package {} in {}...",
+                    package,
+                    if base_url.is_none() { dist } else { "ppa" }
+                ),
                 "",
                 0,
                 0,
@@ -339,7 +381,7 @@ pub async fn lookup(
         }
 
         // Try to find the package in all series from that dist
-        find_package(package, dist, pocket, version, progress).await?
+        find_package(package, dist, pocket, version, base_url, progress).await?
     };
 
     Ok(package_info)
@@ -403,7 +445,7 @@ Version: 1.0
     #[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)
+        let info = find_package("python2.7", "debian", "", None, None, None)
             .await
             .unwrap();
         assert_eq!(info.stanza.package, "python2.7");
@@ -413,7 +455,7 @@ Version: 1.0
     #[tokio::test]
     async fn test_find_package_devel() {
         // hello is in sid
-        let info = find_package("hello", "debian", "", None, None)
+        let info = find_package("hello", "debian", "", None, None, None)
             .await
             .unwrap();
         assert_eq!(info.stanza.package, "hello");

src/pull.rs

@@ -590,7 +590,7 @@ mod tests {
         let cwd = temp_dir.path();
 
         // Main 'pull' command: the one we want to test
-        let info = crate::package_info::lookup(package, None, series, "", dist, None)
+        let info = crate::package_info::lookup(package, None, series, "", dist, None, None)
             .await
             .unwrap();
         pull(&info, Some(cwd), None, archive.unwrap_or(false))