x/udd@0.7.3/semver.ts

Update Deno Dependencies - update dependency urls to their latest published versions
GitHub Stars
204
Latest
// Rolling our own until deno.land/x/semver is strict...
// https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string// we also allow v? at the beginning since this is prevalent...const regex = /^v?(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$/;
export function semver(version: string): Semver | undefined { try { return new Semver(version); } catch { return; }}
export class Semver { version: string; major: number; minor: number; patch: number; prerelease?: string; buildmetadata?: string;
constructor(version: string) { const m = version.match(regex); if (m === null) { throw new Error("Not valid semver"); } const [_, major, minor, patch, prerelease, buildmetadata] = m!; this.version = version; this.major = parseInt(major)!; this.minor = parseInt(minor)!; this.patch = parseInt(patch)!; this.prerelease = prerelease; this.buildmetadata = buildmetadata; }
caret(other: Semver): boolean { return this.major === other.major; }
eq(other: Semver): boolean { return this.version == other.version; }
lt(other: Semver): boolean { if (this.major < other.major) return true; if (this.major > other.major) return false;
if (this.minor < other.minor) return true; if (this.minor > other.minor) return false;
if (this.patch < other.patch) return true; if (this.patch > other.patch) return false;
// This is clearly wrong... if (this.prerelease === undefined) return false; if (other.prerelease === undefined) return false; if (this.prerelease < other.prerelease) return true; if (this.prerelease > other.prerelease) return false;
if (this.buildmetadata === undefined) return false; if (other.buildmetadata === undefined) return false; if (this.buildmetadata < other.buildmetadata) return true; if (this.buildmetadata > other.buildmetadata) return false;
return false; }
tilde(other: Semver): boolean { if (this.major !== other.major) return false; if (this.major === 0 && other.major === 0) return true;
if (this.minor === other.minor) return true; // we're not supporting prerelease and buildmetadata? return false; }
_(token: string, other: Semver): boolean { switch (token) { case "~": return this.tilde(other); case "^": return this.caret(other); case "<": return this.lt(other); // the rest of these are superfluous... case "<=": return this.eq(other) || this.lt(other); case ">": return !(this.eq(other) || this.lt(other)); case ">=": return !this.lt(other); case "=": return this.eq(other); default: throw new Error(`modifier token not recognized: ${token}`); } }}
export function fragment( url: string, version: string,): | ((other: Semver) => boolean) | undefined { const tokens = /^(~|\^|<|<=|>|>=|=)\s*(.*?)$/; const f = url.split("#")[1]; if (f === undefined) return; const m = f.trim().match(tokens); if (m === null) throw new SyntaxError(`invalid semver fragment: ${f}`); const [_, t, v] = m; try { const s = new Semver(v || version); // we have to reverse this due to the way fragments work... return (other: Semver) => other._(t, s); } catch (_) { throw new SyntaxError(`invalid semver version: ${v || version}`); }}