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Add semanticVersionCompare function to utils.js

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This commit is contained in:
Kalila L 2020-08-27 03:53:04 -04:00
parent bfdcdee96b
commit d45c283f3b
1 changed files with 55 additions and 0 deletions
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55
scripts/system/libraries/utils.js
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@ -502,3 +502,58 @@ getMainTabletIDs = function () {
}
return tabletIDs;
};
// returns 1 if A is greater, 0 if equal, -1 if A is lesser
semanticVersionCompare = function(versionA, versionB) {
var versionAParts = versionA.split('.');
var versionBParts = versionB.split('.');
// make sure each version has 3 parts
var partsLength = versionAParts.length;
while (partsLength < 3) {
partsLength = versionAParts.push(0);
}
partsLength = versionBParts.length;
while (partsLength < 3) {
partsLength = versionBParts.push(0);
}
for (var i = 0; i < 3; ++i) {
// We're detecting if there's tags, indicating a pre-release OR it's obsolete.
var versionAPartHasTag = (versionAParts[i].indexOf('-') !== -1);
var versionBPartHasTag = (versionBParts[i].indexOf('-') !== -1);
if (versionAPartHasTag || versionBPartHasTag) {
// In semantic versioning, if version A has a tag and B does not, B is a higher version.
if (versionAPartHasTag < versionBPartHasTag) {
return 1;
} else if (versionAPartHasTag > versionBPartHasTag) {
return -1;
} else {
// They both have tags
var splitA = versionAParts[i].split('-')[0];
var splitB = versionBParts[i].split('-')[0];
if (splitA == splitB) {
continue;
} else if (splitA > splitB) {
return 1;
} else {
return -1;
}
}
} else { // Else, they're both numbers so compare the strings as if they were.
if (versionAParts[i] == versionBParts[i]) {
continue;
} else if (versionAParts[i] > versionBParts[i]) {
return 1;
} else {
return -1;
}
}
}
// They're both equal!
return 0;
}