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Allow semicolons directly after direct URLs #8836

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Nov 5, 2024
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33 changes: 12 additions & 21 deletions crates/uv-pep508/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -709,18 +709,17 @@ fn parse_url<T: Pep508Url>(
len += c.len_utf8();

// If we see a top-level semicolon or hash followed by whitespace, we're done.
match c {
';' if cursor.peek_char().is_some_and(char::is_whitespace) => {
break;
}
'#' if cursor.peek_char().is_some_and(char::is_whitespace) => {
if cursor.peek_char().is_some_and(|c| matches!(c, ';' | '#')) {
let mut cursor = cursor.clone();
cursor.next();
if cursor.peek_char().is_some_and(char::is_whitespace) {
break;
}
_ => {}
}
}
(start, len)
};

let url = cursor.slice(start, len);
if url.is_empty() {
return Err(Pep508Error {
Expand All @@ -731,19 +730,6 @@ fn parse_url<T: Pep508Url>(
});
}

for c in [';', '#'] {
if url.ends_with(c) {
return Err(Pep508Error {
message: Pep508ErrorSource::String(format!(
"Missing space before '{c}', the end of the URL is ambiguous"
)),
start: start + len - 1,
len: 1,
input: cursor.to_string(),
});
}
}

let url = T::parse_url(url, working_dir).map_err(|err| Pep508Error {
message: Pep508ErrorSource::UrlError(err),
start,
Expand Down Expand Up @@ -970,8 +956,13 @@ fn parse_pep508_requirement<T: Pep508Url>(

// wsp*
cursor.eat_whitespace();
if let Some((pos, char)) = cursor.next() {
let message = if marker.is_none() {

if let Some((pos, char)) = cursor.next().filter(|(_, c)| *c != '#') {
let message = if char == '#' {
format!(
r#"Expected end of input or `;`, found `{char}`; comments must be preceded by a leading space"#
)
} else if marker.is_none() {
format!(r#"Expected end of input or `;`, found `{char}`"#)
} else {
format!(r#"Expected end of input, found `{char}`"#)
Expand Down
36 changes: 0 additions & 36 deletions crates/uv-pep508/src/tests.rs
Original file line number Diff line number Diff line change
Expand Up @@ -545,42 +545,6 @@ fn error_extras_not_closed() {
);
}

#[test]
fn error_no_space_after_url() {
assert_snapshot!(
parse_pep508_err(r"name @ https://example.com/; extra == 'example'"),
@r#"
Missing space before ';', the end of the URL is ambiguous
name @ https://example.com/; extra == 'example'
^
"#
);
}

#[test]
fn error_no_space_after_file_url() {
assert_snapshot!(
parse_pep508_err(r"name @ file:///test.whl; extra == 'example'"),
@r###"
Missing space before ';', the end of the URL is ambiguous
name @ file:///test.whl; extra == 'example'
^
"###
);
}

#[test]
fn error_no_space_after_file_path() {
assert_snapshot!(
parse_pep508_err(r"name @ ./test.whl; extra == 'example'"),
@r###"
Missing space before ';', the end of the URL is ambiguous
name @ ./test.whl; extra == 'example'
^
"###
);
}

#[test]
fn error_name_at_nothing() {
assert_snapshot!(
Expand Down
33 changes: 10 additions & 23 deletions crates/uv-pep508/src/unnamed.rs
Original file line number Diff line number Diff line change
Expand Up @@ -174,7 +174,11 @@ fn parse_unnamed_requirement<Url: UnnamedRequirementUrl>(
// wsp*
cursor.eat_whitespace();
if let Some((pos, char)) = cursor.next() {
let message = if marker.is_none() {
let message = if char == '#' {
format!(
r#"Expected end of input or `;`, found `{char}`; comments must be preceded by a leading space"#
)
} else if marker.is_none() {
format!(r#"Expected end of input or `;`, found `{char}`"#)
} else {
format!(r#"Expected end of input, found `{char}`"#)
Expand Down Expand Up @@ -388,15 +392,11 @@ fn parse_unnamed_url<Url: UnnamedRequirementUrl>(
len += c.len_utf8();

// If we see a top-level semicolon or hash followed by whitespace, we're done.
if depth == 0 {
match c {
';' if cursor.peek_char().is_some_and(char::is_whitespace) => {
break;
}
'#' if cursor.peek_char().is_some_and(char::is_whitespace) => {
break;
}
_ => {}
if depth == 0 && cursor.peek_char().is_some_and(|c| matches!(c, ';' | '#')) {
let mut cursor = cursor.clone();
cursor.next();
if cursor.peek_char().is_some_and(char::is_whitespace) {
break;
}
}
}
Expand All @@ -413,19 +413,6 @@ fn parse_unnamed_url<Url: UnnamedRequirementUrl>(
});
}

for c in [';', '#'] {
if url.ends_with(c) {
return Err(Pep508Error {
message: Pep508ErrorSource::String(format!(
"Missing space before '{c}', the end of the URL is ambiguous"
)),
start: start + len - 1,
len: 1,
input: cursor.to_string(),
});
}
}

let url = preprocess_unnamed_url(url, working_dir, cursor, start, len)?;

Ok(url)
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -334,6 +334,106 @@ RequirementsTxt {
),
hashes: [],
},
RequirementEntry {
requirement: Unnamed(
UnnamedRequirement {
url: VerbatimParsedUrl {
parsed_url: Directory(
ParsedDirectoryUrl {
url: Url {
scheme: "file",
cannot_be_a_base: false,
username: "",
password: None,
host: None,
port: None,
path: "<REQUIREMENTS_DIR>/editable",
query: None,
fragment: None,
},
install_path: "<REQUIREMENTS_DIR>/editable",
editable: true,
virtual: false,
},
),
verbatim: VerbatimUrl {
url: Url {
scheme: "file",
cannot_be_a_base: false,
username: "",
password: None,
host: None,
port: None,
path: "<REQUIREMENTS_DIR>/editable",
query: None,
fragment: None,
},
given: Some(
"./editable",
),
},
},
extras: [],
marker: true,
origin: Some(
File(
"<REQUIREMENTS_DIR>/editable.txt",
),
),
},
),
hashes: [],
},
RequirementEntry {
requirement: Unnamed(
UnnamedRequirement {
url: VerbatimParsedUrl {
parsed_url: Directory(
ParsedDirectoryUrl {
url: Url {
scheme: "file",
cannot_be_a_base: false,
username: "",
password: None,
host: None,
port: None,
path: "<REQUIREMENTS_DIR>/editable",
query: None,
fragment: None,
},
install_path: "<REQUIREMENTS_DIR>/editable",
editable: true,
virtual: false,
},
),
verbatim: VerbatimUrl {
url: Url {
scheme: "file",
cannot_be_a_base: false,
username: "",
password: None,
host: None,
port: None,
path: "<REQUIREMENTS_DIR>/editable",
query: None,
fragment: None,
},
given: Some(
"./editable",
),
},
},
extras: [],
marker: true,
origin: Some(
File(
"<REQUIREMENTS_DIR>/editable.txt",
),
),
},
),
hashes: [],
},
],
index_url: None,
extra_index_urls: [],
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ RequirementsTxtFileError {
error: Pep508 {
source: Pep508Error {
message: String(
"Missing space before '#', the end of the URL is ambiguous",
"Expected end of input or `;`, found `#`; comments must be preceded by a leading space",
),
start: 10,
len: 1,
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -6,14 +6,17 @@ RequirementsTxtFileError {
file: "<REQUIREMENTS_DIR>/semicolon.txt",
error: Pep508 {
source: Pep508Error {
message: String(
"Missing space before ';', the end of the URL is ambiguous",
message: UrlError(
MissingExtensionPath(
"./editable;python_version >= \"3.9\" and os_name == \"posix\"",
Dist,
),
),
start: 10,
len: 1,
input: "./editable; python_version >= \"3.9\" and os_name == \"posix\"",
start: 0,
len: 57,
input: "./editable;python_version >= \"3.9\" and os_name == \"posix\"",
},
start: 50,
end: 108,
end: 107,
},
}
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