Allows usage of custom source fork CPython, Pypy and UV.

This enables enterprise use-cases.

Cargo.toml

@@ -80,6 +80,7 @@ passthrough = [
   "PYAPP_SELF_COMMAND",
   "PYAPP_SKIP_INSTALL",
   "PYAPP_UPGRADE_VIRTUALENV",
+  "PYAPP_UV_CUSTOM_SOURCE",
   "PYAPP_UV_ENABLED",
   "PYAPP_UV_ONLY_BOOTSTRAP",
   "PYAPP_UV_VERSION",

build.rs

@@ -310,14 +310,36 @@ fn get_python_version() -> String {
     DEFAULT_PYTHON_VERSION.to_string()
 }
 
+fn get_custom_source(name: &str) -> Option<String> {
+    let name = name.to_uppercase().replace(".", "_");
+    let variable_name = format!("PYAPP_DISTRIBUTION_SOURCE_{}", name);
+    if let Ok(value) = env::var(variable_name) {
+        if !value.is_empty() {
+            return Some(value);
+        }
+    }
+    None
+}
+
 fn get_distribution_source() -> String {
+    let selected_python_version = get_python_version();
+
+    // Return custom source if specified for this version
+    if let Some(custom_source) = get_custom_source(&selected_python_version) {
+        dbg!(
+            "Using custom source for version {}: {}",
+            &selected_python_version,
+            &custom_source
+        );
+        return custom_source;
+    }
+
+    // Otherwise, check if there is a global custom source
     let distribution_source = env::var("PYAPP_DISTRIBUTION_SOURCE").unwrap_or_default();
     if !distribution_source.is_empty() {
         return distribution_source;
     };
 
-    let selected_python_version = get_python_version();
-
     // https://doc.rust-lang.org/cargo/reference/environment-variables.html#environment-variables-cargo-sets-for-build-scripts
     let selected_platform = match env::var("CARGO_CFG_TARGET_OS").unwrap().as_str() {
         "windows" => "windows",
@@ -922,6 +944,11 @@ fn set_uv_only_bootstrap() {
     }
 }
 
+fn set_uv_custom_source() {
+    let variable = "PYAPP_UV_CUSTOM_SOURCE";
+    set_runtime_variable(variable, env::var(variable).unwrap_or_default());
+}
+
 fn set_uv_version() {
     let variable = "PYAPP_UV_VERSION";
     let version = env::var(variable).unwrap_or("any".to_string());
@@ -1070,6 +1097,7 @@ fn main() {
     set_pip_allow_config();
     set_uv_enabled();
     set_uv_only_bootstrap();
+    set_uv_custom_source();
     set_uv_version();
     set_allow_updates();
     set_indicator();

docs/config/distribution.md

@@ -41,6 +41,12 @@ You may explicitly set the `PYAPP_DISTRIBUTION_SOURCE` option which overrides th
 
 Setting this manually may require you to define extra metadata about the distribution that is required for correct [runtime behavior](../runtime.md).
 
+### Version
+
+For greater granularity, you may set the `PYAPP_DISTRIBUTION_SOURCE_<NAME>` option. The source is also the URL to the distribution's archive.
+
+The placeholder `<NAME>` is the uppercased version of the distribution name with periods replaced by underscores e.g. `pypy3.10` would become `PYPY3_10`.
+
 ### Format
 
 The following formats are supported for the `PYAPP_DISTRIBUTION_FORMAT` option, with the default chosen based on the ending of the source URL:

docs/config/installation.md

@@ -14,6 +14,12 @@ You may use a specific `X.Y.Z` version by setting the `PYAPP_UV_VERSION` option.
 
 By default, a version of UV that has already been downloaded by a PyApp application is used. If UV has not yet been downloaded then the latest version is used.
 
+### Source
+
+You may explicitly set the `PYAPP_UV_SOURCE` option in order to download your own UV release archive.
+
+The value must end with the archive's real file extension, which is used to determine the extraction method.
+
 ### Only bootstrap
 
 You may set the `PYAPP_UV_ONLY_BOOTSTRAP` option to `true` or `1` to only use UV for virtual environment creation and continue using pip for project installation.

docs/users.md

@@ -14,3 +14,7 @@ The following is not intended to be a complete enumeration. Be sure to view the
 | [Litestar](https://github.com/litestar-org/litestar-fullstack/blob/dc72eee78173790c3e91b0c095ac9e70ba91bedd/scripts/post-builds.py)
 | [Preservation Workbench](https://github.com/Preservation-Workbench/PWCode/blob/e7777806be35bd60ca8c33e677ffd77e38b277d0/build/make.sh)
 | [tidal-wave](https://github.com/ebb-earl-co/tidal-wave/blob/6358ede21adb715a053b1e6cc73968933c3bed05/BUILDME.md#pyapp-created-binaries)
+
+## Industry
+
+- [Amadeus](https://amadeus.com) <sup>\[[1](https://github.com/ofek/pyapp/pull/147)|[2](https://github.com/AmadeusITGroup/pyapp)\]</sup>

src/app.rs

@@ -7,6 +7,7 @@ use anyhow::{Context, Result};
 use base64::{engine::general_purpose::STANDARD_NO_PAD, Engine as _};
 use directories::ProjectDirs;
 use once_cell::sync::OnceCell;
+use reqwest::Url;
 
 static PLATFORM_DIRS: OnceCell<ProjectDirs> = OnceCell::new();
 static INSTALLATION_DIRECTORY: OnceCell<PathBuf> = OnceCell::new();
@@ -206,6 +207,29 @@ pub fn uv_as_installer() -> bool {
     uv_enabled() && !uv_only_bootstrap()
 }
 
+pub fn uv_custom_source() -> String {
+    env!("PYAPP_UV_CUSTOM_SOURCE").into()
+}
+
+pub fn uv_custom_source_artifact_name() -> String {
+    let custom_source = uv_custom_source();
+
+    let parsed =
+        Url::parse(&custom_source).expect(&format!("unable to parse url: {}", &custom_source));
+
+    // Try to find artifact name from URL path
+    if let Some(segments) = parsed.path_segments() {
+        if let Some(segment) = segments.last() {
+            return segment.into();
+        }
+    }
+
+    panic!(
+        "unable to determine artifact name from url: {}",
+        &custom_source
+    );
+}
+
 pub fn is_gui() -> bool {
     env!("PYAPP_IS_GUI") == "1"
 }

src/distribution.rs

@@ -488,13 +488,20 @@ fn ensure_uv_available() -> Result<()> {
         .with_context(|| format!("unable to create UV cache {}", &managed_uv_cache.display()))?;
 
     let dir = tempdir().with_context(|| "unable to create temporary directory")?;
-    let artifact_name = app::uv_artifact_name();
+
+    let artifact_name: String = if app::uv_custom_source().is_empty() {
+        app::uv_artifact_name()
+    } else {
+        app::uv_custom_source_artifact_name()
+    };
     let temp_path = dir.path().join(&artifact_name);
 
     let mut f = fs::File::create(&temp_path)
         .with_context(|| format!("unable to create temporary file: {}", &temp_path.display()))?;
 
-    let url = if uv_version == "any" {
+    let url = if !app::uv_custom_source().is_empty() {
+        app::uv_custom_source()
+    } else if uv_version == "any" {
         format!(
             "https://github.com/astral-sh/uv/releases/latest/download/{}",
             &artifact_name,
@@ -505,7 +512,6 @@ fn ensure_uv_available() -> Result<()> {
             &uv_version, &artifact_name,
         )
     };
-
     network::download(&url, &mut f, "UV")?;
 
     if artifact_name.ends_with(".zip") {