chore: import upstream snapshot with attribution
This commit is contained in:
@@ -0,0 +1,41 @@
|
||||
/**
|
||||
* Parses a version string into comparable numeric parts.
|
||||
* Handles formats like "1.2.3", "20240115.1", "v1.0.0", plain timestamps, etc.
|
||||
* Non-numeric pre-release suffixes (e.g. "-beta.1") are stripped for ordering purposes.
|
||||
*/
|
||||
function parseVersionParts(version: string): number[] {
|
||||
const cleaned = version.replace(/^v/i, "").replace(/[-+].*$/, "");
|
||||
return cleaned.split(".").map((p) => {
|
||||
const n = parseInt(p, 10);
|
||||
return isNaN(n) ? 0 : n;
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Compares two version strings using numeric segment comparison (descending).
|
||||
* Falls back to lexicographic comparison when segments are equal.
|
||||
* Returns a negative number if `a` should come before `b` (i.e. `a` is newer).
|
||||
*/
|
||||
export function compareVersionsDescending(a: string, b: string): number {
|
||||
const partsA = parseVersionParts(a);
|
||||
const partsB = parseVersionParts(b);
|
||||
const maxLen = Math.max(partsA.length, partsB.length);
|
||||
|
||||
for (let i = 0; i < maxLen; i++) {
|
||||
const segA = partsA[i] ?? 0;
|
||||
const segB = partsB[i] ?? 0;
|
||||
if (segA !== segB) {
|
||||
return segB - segA;
|
||||
}
|
||||
}
|
||||
|
||||
return b.localeCompare(a);
|
||||
}
|
||||
|
||||
/**
|
||||
* Sorts an array of version strings in descending order (newest first).
|
||||
* Non-destructive – returns a new array.
|
||||
*/
|
||||
export function sortVersionsDescending(versions: string[]): string[] {
|
||||
return [...versions].sort(compareVersionsDescending);
|
||||
}
|
||||
Reference in New Issue
Block a user