mirror of
https://github.com/denoland/deno.git
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6da6ed8985
Closes #16321
299 lines
8.1 KiB
Rust
299 lines
8.1 KiB
Rust
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
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use deno_core::anyhow::Context;
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use deno_core::error::AnyError;
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use monch::*;
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use serde::Deserialize;
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use serde::Serialize;
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use super::is_valid_npm_tag;
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use super::range::Partial;
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use super::range::VersionRange;
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use super::range::XRange;
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#[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
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enum SpecifierVersionReqInner {
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Range(VersionRange),
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Tag(String),
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}
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/// Version requirement found in npm specifiers.
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#[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
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pub struct SpecifierVersionReq {
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raw_text: String,
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inner: SpecifierVersionReqInner,
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}
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impl std::fmt::Display for SpecifierVersionReq {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "{}", self.raw_text)
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}
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}
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impl SpecifierVersionReq {
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pub fn parse(text: &str) -> Result<Self, AnyError> {
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with_failure_handling(parse_npm_specifier)(text).with_context(|| {
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format!("Invalid npm specifier version requirement '{}'.", text)
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})
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}
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pub fn range(&self) -> Option<&VersionRange> {
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match &self.inner {
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SpecifierVersionReqInner::Range(range) => Some(range),
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SpecifierVersionReqInner::Tag(_) => None,
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}
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}
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pub fn tag(&self) -> Option<&str> {
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match &self.inner {
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SpecifierVersionReqInner::Range(_) => None,
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SpecifierVersionReqInner::Tag(tag) => Some(tag.as_str()),
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}
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}
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}
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fn parse_npm_specifier(input: &str) -> ParseResult<SpecifierVersionReq> {
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map_res(version_range, |result| {
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let (new_input, range_result) = match result {
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Ok((input, range)) => (input, Ok(range)),
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// use an empty string because we'll consider it a tag
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Err(err) => ("", Err(err)),
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};
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Ok((
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new_input,
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SpecifierVersionReq {
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raw_text: input.to_string(),
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inner: match range_result {
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Ok(range) => SpecifierVersionReqInner::Range(range),
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Err(err) => {
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if !is_valid_npm_tag(input) {
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return Err(err);
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} else {
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SpecifierVersionReqInner::Tag(input.to_string())
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}
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}
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},
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},
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))
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})(input)
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}
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// Note: Although the code below looks very similar to what's used for
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// parsing npm version requirements, the code here is more strict
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// in order to not allow for people to get ridiculous when using
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// npm specifiers.
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// version_range ::= partial | tilde | caret
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fn version_range(input: &str) -> ParseResult<VersionRange> {
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or3(
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map(preceded(ch('~'), partial), |partial| {
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partial.as_tilde_version_range()
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}),
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map(preceded(ch('^'), partial), |partial| {
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partial.as_caret_version_range()
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}),
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map(partial, |partial| partial.as_equal_range()),
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)(input)
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}
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// partial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
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fn partial(input: &str) -> ParseResult<Partial> {
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let (input, major) = xr()(input)?;
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let (input, maybe_minor) = maybe(preceded(ch('.'), xr()))(input)?;
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let (input, maybe_patch) = if maybe_minor.is_some() {
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maybe(preceded(ch('.'), xr()))(input)?
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} else {
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(input, None)
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};
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let (input, qual) = if maybe_patch.is_some() {
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maybe(qualifier)(input)?
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} else {
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(input, None)
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};
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let qual = qual.unwrap_or_default();
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Ok((
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input,
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Partial {
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major,
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minor: maybe_minor.unwrap_or(XRange::Wildcard),
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patch: maybe_patch.unwrap_or(XRange::Wildcard),
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pre: qual.pre,
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build: qual.build,
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},
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))
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}
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// xr ::= 'x' | 'X' | '*' | nr
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fn xr<'a>() -> impl Fn(&'a str) -> ParseResult<'a, XRange> {
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or(
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map(or3(tag("x"), tag("X"), tag("*")), |_| XRange::Wildcard),
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map(nr, XRange::Val),
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)
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}
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// nr ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *
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fn nr(input: &str) -> ParseResult<u64> {
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or(map(tag("0"), |_| 0), move |input| {
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let (input, result) = if_not_empty(substring(pair(
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if_true(next_char, |c| c.is_ascii_digit() && *c != '0'),
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skip_while(|c| c.is_ascii_digit()),
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)))(input)?;
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let val = match result.parse::<u64>() {
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Ok(val) => val,
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Err(err) => {
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return ParseError::fail(
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input,
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format!("Error parsing '{}' to u64.\n\n{:#}", result, err),
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)
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}
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};
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Ok((input, val))
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})(input)
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}
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#[derive(Debug, Clone, Default)]
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struct Qualifier {
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pre: Vec<String>,
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build: Vec<String>,
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}
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// qualifier ::= ( '-' pre )? ( '+' build )?
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fn qualifier(input: &str) -> ParseResult<Qualifier> {
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let (input, pre_parts) = maybe(pre)(input)?;
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let (input, build_parts) = maybe(build)(input)?;
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Ok((
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input,
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Qualifier {
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pre: pre_parts.unwrap_or_default(),
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build: build_parts.unwrap_or_default(),
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},
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))
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}
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// pre ::= parts
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fn pre(input: &str) -> ParseResult<Vec<String>> {
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preceded(ch('-'), parts)(input)
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}
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// build ::= parts
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fn build(input: &str) -> ParseResult<Vec<String>> {
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preceded(ch('+'), parts)(input)
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}
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// parts ::= part ( '.' part ) *
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fn parts(input: &str) -> ParseResult<Vec<String>> {
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if_not_empty(map(separated_list(part, ch('.')), |text| {
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text.into_iter().map(ToOwned::to_owned).collect()
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}))(input)
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}
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// part ::= nr | [-0-9A-Za-z]+
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fn part(input: &str) -> ParseResult<&str> {
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// nr is in the other set, so don't bother checking for it
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if_true(
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take_while(|c| c.is_ascii_alphanumeric() || c == '-'),
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|result| !result.is_empty(),
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)(input)
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}
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#[cfg(test)]
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mod tests {
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use crate::npm::semver::NpmVersion;
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use super::*;
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struct VersionReqTester(SpecifierVersionReq);
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impl VersionReqTester {
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fn new(text: &str) -> Self {
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Self(SpecifierVersionReq::parse(text).unwrap())
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}
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fn matches(&self, version: &str) -> bool {
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self
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.0
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.range()
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.map(|r| r.satisfies(&NpmVersion::parse(version).unwrap()))
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.unwrap_or(false)
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}
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}
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#[test]
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fn version_req_exact() {
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let tester = VersionReqTester::new("1.0.1");
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assert!(!tester.matches("1.0.0"));
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assert!(tester.matches("1.0.1"));
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assert!(!tester.matches("1.0.2"));
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assert!(!tester.matches("1.1.1"));
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// pre-release
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let tester = VersionReqTester::new("1.0.0-alpha.13");
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assert!(tester.matches("1.0.0-alpha.13"));
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}
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#[test]
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fn version_req_minor() {
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let tester = VersionReqTester::new("1.1");
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assert!(!tester.matches("1.0.0"));
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assert!(tester.matches("1.1.0"));
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assert!(tester.matches("1.1.1"));
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assert!(!tester.matches("1.2.0"));
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assert!(!tester.matches("1.2.1"));
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}
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#[test]
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fn version_req_caret() {
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let tester = VersionReqTester::new("^1.1.1");
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assert!(!tester.matches("1.1.0"));
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assert!(tester.matches("1.1.1"));
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assert!(tester.matches("1.1.2"));
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assert!(tester.matches("1.2.0"));
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assert!(!tester.matches("2.0.0"));
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let tester = VersionReqTester::new("^0.1.1");
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assert!(!tester.matches("0.0.0"));
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assert!(!tester.matches("0.1.0"));
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assert!(tester.matches("0.1.1"));
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assert!(tester.matches("0.1.2"));
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assert!(!tester.matches("0.2.0"));
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assert!(!tester.matches("1.0.0"));
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let tester = VersionReqTester::new("^0.0.1");
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assert!(!tester.matches("0.0.0"));
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assert!(tester.matches("0.0.1"));
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assert!(!tester.matches("0.0.2"));
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assert!(!tester.matches("0.1.0"));
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assert!(!tester.matches("1.0.0"));
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}
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#[test]
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fn version_req_tilde() {
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let tester = VersionReqTester::new("~1.1.1");
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assert!(!tester.matches("1.1.0"));
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assert!(tester.matches("1.1.1"));
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assert!(tester.matches("1.1.2"));
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assert!(!tester.matches("1.2.0"));
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assert!(!tester.matches("2.0.0"));
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let tester = VersionReqTester::new("~0.1.1");
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assert!(!tester.matches("0.0.0"));
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assert!(!tester.matches("0.1.0"));
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assert!(tester.matches("0.1.1"));
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assert!(tester.matches("0.1.2"));
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assert!(!tester.matches("0.2.0"));
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assert!(!tester.matches("1.0.0"));
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let tester = VersionReqTester::new("~0.0.1");
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assert!(!tester.matches("0.0.0"));
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assert!(tester.matches("0.0.1"));
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assert!(tester.matches("0.0.2")); // for some reason this matches, but not with ^
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assert!(!tester.matches("0.1.0"));
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assert!(!tester.matches("1.0.0"));
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}
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#[test]
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fn parses_tag() {
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let latest_tag = SpecifierVersionReq::parse("latest").unwrap();
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assert_eq!(latest_tag.tag().unwrap(), "latest");
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}
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}
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