Skip to main content

uv_distribution_types/
index_url.rs

1use std::borrow::Cow;
2use std::fmt::{Display, Formatter};
3use std::ops::Deref;
4use std::path::Path;
5use std::str::FromStr;
6use std::sync::{Arc, LazyLock, RwLock};
7
8use http::StatusCode;
9use itertools::Either;
10use rustc_hash::{FxHashMap, FxHashSet};
11use thiserror::Error;
12use url::{ParseError, Url};
13use uv_auth::RealmRef;
14use uv_cache_key::CanonicalUrl;
15use uv_pep508::{Scheme, VerbatimUrl, VerbatimUrlError, split_scheme};
16use uv_pypi_types::HashAlgorithm;
17use uv_redacted::DisplaySafeUrl;
18use uv_warnings::warn_user;
19
20use crate::{ExcludeNewerOverride, Index, IndexStatusCodeStrategy, Verbatim};
21
22pub static PYPI_URL: LazyLock<DisplaySafeUrl> =
23    LazyLock::new(|| DisplaySafeUrl::parse("https://pypi.org/simple").unwrap());
24
25static DEFAULT_INDEX: LazyLock<Index> = LazyLock::new(|| {
26    Index::from_index_url(IndexUrl::Pypi(Arc::new(VerbatimUrl::from_url(
27        PYPI_URL.clone(),
28    ))))
29});
30
31/// The URL of an index to use for fetching packages (e.g., PyPI).
32#[derive(Debug, Clone, Hash, Eq, PartialEq, Ord, PartialOrd)]
33pub enum IndexUrl {
34    Pypi(Arc<VerbatimUrl>),
35    Url(Arc<VerbatimUrl>),
36    Path(Arc<VerbatimUrl>),
37}
38
39impl IndexUrl {
40    /// Parse an [`IndexUrl`] from a string, relative to an optional root directory.
41    ///
42    /// If no root directory is provided, relative paths are resolved against the current working
43    /// directory.
44    pub fn parse(path: &str, root_dir: Option<&Path>) -> Result<Self, IndexUrlError> {
45        let url = VerbatimUrl::from_url_or_path(path, root_dir)?;
46        Ok(Self::from(url))
47    }
48
49    /// Return the root [`Url`] of the index, if applicable.
50    ///
51    /// For indexes with a `/simple` endpoint, this is simply the URL with the final segment
52    /// removed. This is useful, e.g., for credential propagation to other endpoints on the index.
53    pub fn root(&self) -> Option<DisplaySafeUrl> {
54        let mut segments = self.url().path_segments()?;
55        let last = match segments.next_back()? {
56            // If the last segment is empty due to a trailing `/`, skip it (as in `pop_if_empty`)
57            "" => segments.next_back()?,
58            segment => segment,
59        };
60
61        // We also handle `/+simple` as it's used in devpi
62        if !(last.eq_ignore_ascii_case("simple") || last.eq_ignore_ascii_case("+simple")) {
63            return None;
64        }
65
66        let mut url = self.url().clone();
67        url.path_segments_mut().ok()?.pop_if_empty().pop();
68        Some(url)
69    }
70}
71
72#[cfg(feature = "schemars")]
73impl schemars::JsonSchema for IndexUrl {
74    fn schema_name() -> Cow<'static, str> {
75        Cow::Borrowed("IndexUrl")
76    }
77
78    fn json_schema(_generator: &mut schemars::generate::SchemaGenerator) -> schemars::Schema {
79        schemars::json_schema!({
80            "type": "string",
81            "description": "The URL of an index to use for fetching packages (e.g., `https://pypi.org/simple`), or a local path."
82        })
83    }
84}
85
86impl IndexUrl {
87    #[inline]
88    fn inner(&self) -> &VerbatimUrl {
89        match self {
90            Self::Pypi(url) | Self::Url(url) | Self::Path(url) => url,
91        }
92    }
93
94    /// Return the raw URL for the index.
95    pub fn url(&self) -> &DisplaySafeUrl {
96        self.inner().raw()
97    }
98
99    /// Convert the index URL into a [`DisplaySafeUrl`].
100    pub fn into_url(self) -> DisplaySafeUrl {
101        match self {
102            Self::Pypi(url) | Self::Url(url) | Self::Path(url) => {
103                Arc::unwrap_or_clone(url).into_url()
104            }
105        }
106    }
107
108    /// Return the redacted URL for the index, omitting any sensitive credentials.
109    pub fn without_credentials(&self) -> Cow<'_, DisplaySafeUrl> {
110        let url = self.url();
111        if url.username().is_empty() && url.password().is_none() {
112            Cow::Borrowed(url)
113        } else {
114            let mut url = url.clone();
115            let _ = url.set_username("");
116            let _ = url.set_password(None);
117            Cow::Owned(url)
118        }
119    }
120
121    /// Warn user if the given URL was provided as an ambiguous relative path.
122    ///
123    /// This is a temporary warning. Ambiguous values will not be
124    /// accepted in the future.
125    pub fn warn_on_disambiguated_relative_path(&self) {
126        let Self::Path(verbatim_url) = &self else {
127            return;
128        };
129
130        if let Some(path) = verbatim_url.given()
131            && !is_disambiguated_path(path)
132        {
133            if cfg!(windows) {
134                warn_user!(
135                    "Relative paths passed to `--index` or `--default-index` should be disambiguated from index names (use `.\\{path}` or `./{path}`). Support for ambiguous values will be removed in the future"
136                );
137            } else {
138                warn_user!(
139                    "Relative paths passed to `--index` or `--default-index` should be disambiguated from index names (use `./{path}`). Support for ambiguous values will be removed in the future"
140                );
141            }
142        }
143    }
144}
145
146impl Display for IndexUrl {
147    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
148        Display::fmt(self.inner(), f)
149    }
150}
151
152impl Verbatim for IndexUrl {
153    fn verbatim(&self) -> Cow<'_, str> {
154        self.inner().verbatim()
155    }
156}
157
158/// Checks if a path is disambiguated.
159///
160/// Disambiguated paths are absolute paths, paths with valid schemes,
161/// and paths starting with "./" or "../" on Unix or ".\\", "..\\",
162/// "./", or "../" on Windows.
163fn is_disambiguated_path(path: &str) -> bool {
164    if cfg!(windows) {
165        if path.starts_with(".\\") || path.starts_with("..\\") || path.starts_with('/') {
166            return true;
167        }
168    }
169    if path.starts_with("./") || path.starts_with("../") || Path::new(path).is_absolute() {
170        return true;
171    }
172    // Check if the path has a scheme (like `file://`)
173    if let Some((scheme, _)) = split_scheme(path) {
174        return Scheme::parse(scheme).is_some();
175    }
176    // This is an ambiguous relative path
177    false
178}
179
180/// An error that can occur when parsing an [`IndexUrl`].
181#[derive(Error, Debug)]
182pub enum IndexUrlError {
183    #[error(transparent)]
184    Io(#[from] std::io::Error),
185    #[error(transparent)]
186    Url(#[from] ParseError),
187    #[error(transparent)]
188    VerbatimUrl(#[from] VerbatimUrlError),
189}
190
191impl FromStr for IndexUrl {
192    type Err = IndexUrlError;
193
194    fn from_str(s: &str) -> Result<Self, Self::Err> {
195        Self::parse(s, None)
196    }
197}
198
199impl serde::ser::Serialize for IndexUrl {
200    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
201    where
202        S: serde::ser::Serializer,
203    {
204        self.inner().without_credentials().serialize(serializer)
205    }
206}
207
208impl<'de> serde::de::Deserialize<'de> for IndexUrl {
209    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
210    where
211        D: serde::de::Deserializer<'de>,
212    {
213        struct Visitor;
214
215        impl serde::de::Visitor<'_> for Visitor {
216            type Value = IndexUrl;
217
218            fn expecting(&self, f: &mut Formatter) -> std::fmt::Result {
219                f.write_str("a string")
220            }
221
222            fn visit_str<E: serde::de::Error>(self, v: &str) -> Result<Self::Value, E> {
223                IndexUrl::from_str(v).map_err(serde::de::Error::custom)
224            }
225        }
226
227        deserializer.deserialize_str(Visitor)
228    }
229}
230
231impl From<VerbatimUrl> for IndexUrl {
232    fn from(url: VerbatimUrl) -> Self {
233        if url.scheme() == "file" {
234            Self::Path(Arc::new(url))
235        } else if *url.raw() == *PYPI_URL {
236            Self::Pypi(Arc::new(url))
237        } else {
238            Self::Url(Arc::new(url))
239        }
240    }
241}
242
243impl From<IndexUrl> for DisplaySafeUrl {
244    fn from(index: IndexUrl) -> Self {
245        index.into_url()
246    }
247}
248
249impl Deref for IndexUrl {
250    type Target = Url;
251
252    fn deref(&self) -> &Self::Target {
253        self.inner()
254    }
255}
256
257/// The index locations to use for fetching packages. By default, uses the PyPI index.
258///
259/// This type merges the legacy `--index-url`, `--extra-index-url`, and `--find-links` options,
260/// along with the uv-specific `--index` and `--default-index`.
261#[derive(Default, Debug, Clone, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
262#[serde(rename_all = "kebab-case", deny_unknown_fields)]
263pub struct IndexLocations {
264    indexes: Vec<Index>,
265    flat_index: Vec<Index>,
266    no_index: bool,
267}
268
269impl IndexLocations {
270    /// Determine the index URLs to use for fetching packages.
271    pub fn new(indexes: Vec<Index>, flat_index: Vec<Index>, no_index: bool) -> Self {
272        Self {
273            indexes,
274            flat_index,
275            no_index,
276        }
277    }
278
279    /// Combine a set of index locations.
280    ///
281    /// If either the current or the other index locations have `no_index` set, the result will
282    /// have `no_index` set.
283    ///
284    /// If the current index location has an `index` set, it will be preserved.
285    #[must_use]
286    pub fn combine(self, indexes: Vec<Index>, flat_index: Vec<Index>, no_index: bool) -> Self {
287        Self {
288            indexes: self.indexes.into_iter().chain(indexes).collect(),
289            flat_index: self.flat_index.into_iter().chain(flat_index).collect(),
290            no_index: self.no_index || no_index,
291        }
292    }
293
294    /// Returns `true` if no index configuration is set, i.e., the [`IndexLocations`] matches the
295    /// default configuration.
296    pub fn is_none(&self) -> bool {
297        *self == Self::default()
298    }
299}
300
301/// Returns `true` if two [`IndexUrl`]s refer to the same index.
302fn is_same_index(a: &IndexUrl, b: &IndexUrl) -> bool {
303    RealmRef::from(&**b.url()) == RealmRef::from(&**a.url())
304        && CanonicalUrl::new(a.url().clone()) == CanonicalUrl::new(b.url().clone())
305}
306
307impl<'a> IndexLocations {
308    /// Return the default [`Index`] entry.
309    ///
310    /// If `--no-index` is set, return `None`.
311    ///
312    /// If no index is provided, use the `PyPI` index.
313    pub fn default_index(&'a self) -> Option<&'a Index> {
314        if self.no_index {
315            None
316        } else {
317            let mut seen = FxHashSet::default();
318            self.indexes
319                .iter()
320                .filter(move |index| index.name.as_ref().is_none_or(|name| seen.insert(name)))
321                .find(|index| index.default)
322                .or_else(|| Some(&DEFAULT_INDEX))
323        }
324    }
325
326    /// Return an iterator over the implicit [`Index`] entries.
327    ///
328    /// Default and explicit indexes are excluded.
329    pub fn implicit_indexes(&'a self) -> impl Iterator<Item = &'a Index> + 'a {
330        if self.no_index {
331            Either::Left(std::iter::empty())
332        } else {
333            let mut seen = FxHashSet::default();
334            Either::Right(
335                self.indexes
336                    .iter()
337                    .filter(move |index| index.name.as_ref().is_none_or(|name| seen.insert(name)))
338                    .filter(|index| !index.default && !index.explicit),
339            )
340        }
341    }
342
343    /// Return an iterator over the explicit [`Index`] entries.
344    ///
345    /// Explicit indexes are only used when pinned via `tool.uv.sources`.
346    pub fn explicit_indexes(&'a self) -> impl Iterator<Item = &'a Index> + 'a {
347        if self.no_index {
348            Either::Left(std::iter::empty())
349        } else {
350            let mut seen = FxHashSet::default();
351            Either::Right(
352                self.indexes
353                    .iter()
354                    .filter(move |index| index.name.as_ref().is_none_or(|name| seen.insert(name)))
355                    .filter(|index| index.explicit),
356            )
357        }
358    }
359
360    /// Return an iterator over all [`Index`] entries in order.
361    ///
362    /// Explicit indexes are excluded.
363    ///
364    /// Prioritizes the extra indexes over the default index.
365    ///
366    /// If `no_index` was enabled, then this always returns an empty
367    /// iterator.
368    pub fn indexes(&'a self) -> impl Iterator<Item = &'a Index> + 'a {
369        self.implicit_indexes()
370            .chain(self.default_index())
371            .filter(|index| !index.explicit)
372    }
373
374    /// Return an iterator over all [`Index`] entries to fetch in order.
375    ///
376    /// Unlike [`IndexLocations::indexes`], indexes with duplicate raw URLs are excluded.
377    pub fn fetch_indexes(&'a self) -> impl Iterator<Item = &'a Index> + 'a {
378        let mut seen = FxHashSet::default();
379        self.indexes()
380            .filter(move |index| seen.insert(index.raw_url()))
381    }
382
383    /// Return an iterator over all simple [`Index`] entries in order.
384    ///
385    /// If `no_index` was enabled, then this always returns an empty iterator.
386    pub fn simple_indexes(&'a self) -> impl Iterator<Item = &'a Index> + 'a {
387        if self.no_index {
388            Either::Left(std::iter::empty())
389        } else {
390            let mut seen = FxHashSet::default();
391            Either::Right(
392                self.indexes
393                    .iter()
394                    .filter(move |index| index.name.as_ref().is_none_or(|name| seen.insert(name))),
395            )
396        }
397    }
398
399    /// Return an iterator over the [`FlatIndexLocation`] entries.
400    pub fn flat_indexes(&'a self) -> impl Iterator<Item = &'a Index> + 'a {
401        self.flat_index.iter()
402    }
403
404    /// Return the `--no-index` flag.
405    pub fn no_index(&self) -> bool {
406        self.no_index
407    }
408
409    /// Return a vector containing all allowed [`Index`] entries.
410    ///
411    /// This includes explicit indexes, implicit indexes, flat indexes, and the default index.
412    ///
413    /// The indexes will be returned in the reverse of the order in which they were defined, such
414    /// that the last-defined index is the first item in the vector.
415    pub fn allowed_indexes(&'a self) -> Vec<&'a Index> {
416        if self.no_index {
417            self.flat_index.iter().rev().collect()
418        } else {
419            let mut indexes = vec![];
420
421            let mut seen = FxHashSet::default();
422            let mut default = false;
423            for index in {
424                self.indexes
425                    .iter()
426                    .chain(self.flat_index.iter())
427                    .filter(move |index| index.name.as_ref().is_none_or(|name| seen.insert(name)))
428            } {
429                if index.default {
430                    if default {
431                        continue;
432                    }
433                    default = true;
434                }
435                indexes.push(index);
436            }
437            if !default {
438                indexes.push(&*DEFAULT_INDEX);
439            }
440
441            indexes.reverse();
442            indexes
443        }
444    }
445
446    /// Return a vector containing all known [`Index`] entries.
447    ///
448    /// This includes explicit indexes, implicit indexes, flat indexes, and default indexes;
449    /// in short, it includes all defined indexes, even if they're overridden by some other index
450    /// definition.
451    ///
452    /// The indexes will be returned in the reverse of the order in which they were defined, such
453    /// that the last-defined index is the first item in the vector.
454    pub fn known_indexes(&'a self) -> impl Iterator<Item = &'a Index> {
455        if self.no_index {
456            Either::Left(self.flat_index.iter().rev())
457        } else {
458            Either::Right(
459                std::iter::once(&*DEFAULT_INDEX)
460                    .chain(self.flat_index.iter().rev())
461                    .chain(self.indexes.iter().rev()),
462            )
463        }
464    }
465
466    /// Return an iterator over all user-defined [`Index`] entries in order.
467    ///
468    /// Prioritizes the `[tool.uv.index]` definitions over the `--extra-index-url` definitions
469    /// over the `--index-url` definition.
470    ///
471    /// Unlike [`IndexLocations::indexes`], this includes explicit indexes and does _not_ insert
472    /// PyPI as a fallback default.
473    ///
474    /// If `no_index` was enabled, then this always returns an empty iterator.
475    pub fn defined_indexes(&'a self) -> impl Iterator<Item = &'a Index> + 'a {
476        if self.no_index {
477            return Either::Left(std::iter::empty());
478        }
479
480        let mut seen = FxHashSet::default();
481        let (non_default, default) = self
482            .indexes
483            .iter()
484            .filter(move |index| {
485                if let Some(name) = &index.name {
486                    seen.insert(name)
487                } else {
488                    true
489                }
490            })
491            .partition::<Vec<_>, _>(|index| !index.default);
492
493        Either::Right(non_default.into_iter().chain(default))
494    }
495
496    /// Return the configured index matching the given URL.
497    fn index_for_url(&self, url: &IndexUrl) -> Option<&Index> {
498        self.indexes
499            .iter()
500            .find(|index| is_same_index(index.url(), url))
501    }
502
503    /// Return the [`IndexStatusCodeStrategy`] for an [`IndexUrl`].
504    pub fn status_code_strategy_for(&self, url: &IndexUrl) -> IndexStatusCodeStrategy {
505        self.index_for_url(url).map_or(
506            IndexStatusCodeStrategy::Default,
507            Index::status_code_strategy,
508        )
509    }
510
511    /// Return whether the given status code is explicitly ignored for an [`IndexUrl`].
512    pub fn ignores_error_code_for(&self, url: &IndexUrl, status_code: StatusCode) -> bool {
513        self.index_for_url(url)
514            .is_some_and(|index| index.ignores_error_code(status_code))
515    }
516
517    /// Return the Simple API cache control header for an [`IndexUrl`], if configured.
518    pub fn simple_api_cache_control_for(&self, url: &IndexUrl) -> Option<http::HeaderValue> {
519        self.index_for_url(url)
520            .and_then(Index::simple_api_cache_control)
521    }
522
523    /// Return the artifact cache control header for an [`IndexUrl`], if configured.
524    pub fn artifact_cache_control_for(&self, url: &IndexUrl) -> Option<http::HeaderValue> {
525        self.index_for_url(url)
526            .and_then(Index::artifact_cache_control)
527    }
528
529    /// Return the hash algorithm required for distributions resolved from a given index.
530    pub fn hash_algorithm_for(&self, url: &IndexUrl) -> Option<HashAlgorithm> {
531        self.index_for_url(url)
532            .and_then(|index| index.hash_algorithm.map(HashAlgorithm::from))
533    }
534
535    /// Return the `exclude-newer` setting for a given index, if the index is configured.
536    pub fn exclude_newer_for(&self, url: &IndexUrl) -> Option<&ExcludeNewerOverride> {
537        self.index_for_url(url).and_then(Index::exclude_newer)
538    }
539}
540
541impl From<&IndexLocations> for uv_auth::Indexes {
542    fn from(index_locations: &IndexLocations) -> Self {
543        Self::from_indexes(index_locations.allowed_indexes().into_iter().map(|index| {
544            let mut url = index.url().url().clone();
545            url.set_username("").ok();
546            url.set_password(None).ok();
547            let mut root_url = index.url().root().unwrap_or_else(|| url.clone());
548            root_url.set_username("").ok();
549            root_url.set_password(None).ok();
550            uv_auth::Index {
551                url,
552                root_url,
553                auth_policy: index.authenticate,
554            }
555        }))
556    }
557}
558
559bitflags::bitflags! {
560    #[derive(Debug, Copy, Clone)]
561    struct Flags: u8 {
562        /// Whether the index supports range requests.
563        const NO_RANGE_REQUESTS = 1;
564        /// Whether the index returned a `401 Unauthorized` status code.
565        const UNAUTHORIZED      = 1 << 2;
566        /// Whether the index returned a `403 Forbidden` status code.
567        const FORBIDDEN         = 1 << 1;
568    }
569}
570
571/// A map of [`IndexUrl`]s to their capabilities.
572///
573/// We only store indexes that lack capabilities (i.e., don't support range requests, aren't
574/// authorized). The benefit is that the map is almost always empty, so validating capabilities is
575/// extremely cheap.
576#[derive(Debug, Default, Clone)]
577pub struct IndexCapabilities(Arc<RwLock<FxHashMap<IndexUrl, Flags>>>);
578
579impl IndexCapabilities {
580    /// Returns `true` if the given [`IndexUrl`] supports range requests.
581    pub fn supports_range_requests(&self, index_url: &IndexUrl) -> bool {
582        !self
583            .0
584            .read()
585            .unwrap()
586            .get(index_url)
587            .is_some_and(|flags| flags.intersects(Flags::NO_RANGE_REQUESTS))
588    }
589
590    /// Mark an [`IndexUrl`] as not supporting range requests.
591    pub fn set_no_range_requests(&self, index_url: IndexUrl) {
592        self.0
593            .write()
594            .unwrap()
595            .entry(index_url)
596            .or_insert(Flags::empty())
597            .insert(Flags::NO_RANGE_REQUESTS);
598    }
599
600    /// Returns `true` if the given [`IndexUrl`] returns a `401 Unauthorized` status code.
601    pub fn unauthorized(&self, index_url: &IndexUrl) -> bool {
602        self.0
603            .read()
604            .unwrap()
605            .get(index_url)
606            .is_some_and(|flags| flags.intersects(Flags::UNAUTHORIZED))
607    }
608
609    /// Mark an [`IndexUrl`] as returning a `401 Unauthorized` status code.
610    pub(crate) fn set_unauthorized(&self, index_url: IndexUrl) {
611        self.0
612            .write()
613            .unwrap()
614            .entry(index_url)
615            .or_insert(Flags::empty())
616            .insert(Flags::UNAUTHORIZED);
617    }
618
619    /// Returns `true` if the given [`IndexUrl`] returns a `403 Forbidden` status code.
620    pub fn forbidden(&self, index_url: &IndexUrl) -> bool {
621        self.0
622            .read()
623            .unwrap()
624            .get(index_url)
625            .is_some_and(|flags| flags.intersects(Flags::FORBIDDEN))
626    }
627
628    /// Mark an [`IndexUrl`] as returning a `403 Forbidden` status code.
629    pub(crate) fn set_forbidden(&self, index_url: IndexUrl) {
630        self.0
631            .write()
632            .unwrap()
633            .entry(index_url)
634            .or_insert(Flags::empty())
635            .insert(Flags::FORBIDDEN);
636    }
637}
638
639#[cfg(test)]
640mod tests {
641    use super::*;
642    use crate::{IndexCacheControl, IndexFormat, IndexName};
643    use http::HeaderValue;
644
645    #[test]
646    fn test_index_url_parse_valid_paths() {
647        // Absolute path
648        assert!(is_disambiguated_path("/absolute/path"));
649        // Relative path
650        assert!(is_disambiguated_path("./relative/path"));
651        assert!(is_disambiguated_path("../../relative/path"));
652        if cfg!(windows) {
653            // Windows absolute path
654            assert!(is_disambiguated_path("C:/absolute/path"));
655            // Windows relative path
656            assert!(is_disambiguated_path(".\\relative\\path"));
657            assert!(is_disambiguated_path("..\\..\\relative\\path"));
658        }
659    }
660
661    #[test]
662    fn test_index_url_parse_ambiguous_paths() {
663        // Test single-segment ambiguous path
664        assert!(!is_disambiguated_path("index"));
665        // Test multi-segment ambiguous path
666        assert!(!is_disambiguated_path("relative/path"));
667    }
668
669    #[test]
670    fn test_index_url_parse_with_schemes() {
671        assert!(is_disambiguated_path("file:///absolute/path"));
672        assert!(is_disambiguated_path("https://registry.com/simple/"));
673        assert!(is_disambiguated_path(
674            "git+https://github.com/example/repo.git"
675        ));
676    }
677
678    #[test]
679    fn fetch_indexes_deduplicates_raw_urls() {
680        let url = IndexUrl::from_str("https://index.example.com/simple").unwrap();
681        let mut first = Index::from(url.clone());
682        first.name = Some(IndexName::from_str("first").unwrap());
683        let mut second = Index::from(url);
684        second.name = Some(IndexName::from_str("second").unwrap());
685        second.default = true;
686        let locations = IndexLocations::new(vec![first, second], Vec::new(), false);
687
688        assert_eq!(locations.indexes().count(), 2);
689        assert_eq!(locations.fetch_indexes().count(), 1);
690    }
691
692    #[test]
693    fn test_cache_control_lookup() {
694        use std::str::FromStr;
695
696        use crate::IndexFormat;
697        use crate::index_name::IndexName;
698
699        let indexes = vec![
700            Index {
701                name: Some(IndexName::from_str("index1").unwrap()),
702                url: IndexUrl::from_str("https://index1.example.com/simple").unwrap(),
703                cache_control: Some(crate::IndexCacheControl {
704                    api: Some(HeaderValue::from_static("max-age=300")),
705                    files: Some(HeaderValue::from_static("max-age=1800")),
706                }),
707                explicit: false,
708                default: false,
709                origin: None,
710                format: IndexFormat::Simple,
711                publish_url: None,
712                authenticate: uv_auth::AuthPolicy::default(),
713                ignore_error_codes: None,
714                hash_algorithm: None,
715                exclude_newer: None,
716            },
717            Index {
718                name: Some(IndexName::from_str("index2").unwrap()),
719                url: IndexUrl::from_str("https://index2.example.com/simple").unwrap(),
720                cache_control: None,
721                explicit: false,
722                default: false,
723                origin: None,
724                format: IndexFormat::Simple,
725                publish_url: None,
726                authenticate: uv_auth::AuthPolicy::default(),
727                ignore_error_codes: None,
728                hash_algorithm: None,
729                exclude_newer: None,
730            },
731        ];
732
733        let index_locations = IndexLocations::new(indexes, Vec::new(), false);
734
735        let url1 = IndexUrl::from_str("https://index1.example.com/simple").unwrap();
736        assert_eq!(
737            index_locations.simple_api_cache_control_for(&url1),
738            Some(HeaderValue::from_static("max-age=300"))
739        );
740        assert_eq!(
741            index_locations.artifact_cache_control_for(&url1),
742            Some(HeaderValue::from_static("max-age=1800"))
743        );
744
745        let url2 = IndexUrl::from_str("https://index2.example.com/simple").unwrap();
746        assert_eq!(index_locations.simple_api_cache_control_for(&url2), None);
747        assert_eq!(index_locations.artifact_cache_control_for(&url2), None);
748
749        let url3 = IndexUrl::from_str("https://index3.example.com/simple").unwrap();
750        assert_eq!(index_locations.simple_api_cache_control_for(&url3), None);
751        assert_eq!(index_locations.artifact_cache_control_for(&url3), None);
752    }
753
754    #[test]
755    fn test_pytorch_default_cache_control() {
756        // Test that PyTorch indexes get default cache control from the getter methods
757        let indexes = vec![Index {
758            name: Some(IndexName::from_str("pytorch").unwrap()),
759            url: IndexUrl::from_str("https://download.pytorch.org/whl/cu118").unwrap(),
760            cache_control: None, // No explicit cache control
761            explicit: false,
762            default: false,
763            origin: None,
764            format: IndexFormat::Simple,
765            publish_url: None,
766            authenticate: uv_auth::AuthPolicy::default(),
767            ignore_error_codes: None,
768            hash_algorithm: None,
769            exclude_newer: None,
770        }];
771
772        let index_locations = IndexLocations::new(indexes, Vec::new(), false);
773
774        let pytorch_url = IndexUrl::from_str("https://download.pytorch.org/whl/cu118").unwrap();
775
776        assert_eq!(
777            index_locations.simple_api_cache_control_for(&pytorch_url),
778            None
779        );
780        assert_eq!(
781            index_locations.artifact_cache_control_for(&pytorch_url),
782            Some(HeaderValue::from_static(
783                "max-age=365000000, immutable, public",
784            ))
785        );
786    }
787
788    #[test]
789    fn test_pytorch_user_override_cache_control() {
790        // Test that user-specified cache control overrides PyTorch defaults
791        let indexes = vec![Index {
792            name: Some(IndexName::from_str("pytorch").unwrap()),
793            url: IndexUrl::from_str("https://download.pytorch.org/whl/cu118").unwrap(),
794            cache_control: Some(IndexCacheControl {
795                api: Some(HeaderValue::from_static("no-cache")),
796                files: Some(HeaderValue::from_static("max-age=3600")),
797            }),
798            explicit: false,
799            default: false,
800            origin: None,
801            format: IndexFormat::Simple,
802            publish_url: None,
803            authenticate: uv_auth::AuthPolicy::default(),
804            ignore_error_codes: None,
805            hash_algorithm: None,
806            exclude_newer: None,
807        }];
808
809        let index_locations = IndexLocations::new(indexes, Vec::new(), false);
810
811        let pytorch_url = IndexUrl::from_str("https://download.pytorch.org/whl/cu118").unwrap();
812
813        assert_eq!(
814            index_locations.simple_api_cache_control_for(&pytorch_url),
815            Some(HeaderValue::from_static("no-cache"))
816        );
817        assert_eq!(
818            index_locations.artifact_cache_control_for(&pytorch_url),
819            Some(HeaderValue::from_static("max-age=3600"))
820        );
821    }
822
823    #[test]
824    fn test_nvidia_default_cache_control() {
825        // Test that NVIDIA indexes get default cache control from the getter methods
826        let indexes = vec![Index {
827            name: Some(IndexName::from_str("nvidia").unwrap()),
828            url: IndexUrl::from_str("https://pypi.nvidia.com").unwrap(),
829            cache_control: None, // No explicit cache control
830            explicit: false,
831            default: false,
832            origin: None,
833            format: IndexFormat::Simple,
834            publish_url: None,
835            authenticate: uv_auth::AuthPolicy::default(),
836            ignore_error_codes: None,
837            hash_algorithm: None,
838            exclude_newer: None,
839        }];
840
841        let index_locations = IndexLocations::new(indexes, Vec::new(), false);
842
843        let nvidia_url = IndexUrl::from_str("https://pypi.nvidia.com").unwrap();
844
845        assert_eq!(
846            index_locations.simple_api_cache_control_for(&nvidia_url),
847            None
848        );
849        assert_eq!(
850            index_locations.artifact_cache_control_for(&nvidia_url),
851            Some(HeaderValue::from_static(
852                "max-age=365000000, immutable, public",
853            ))
854        );
855    }
856}