78 lines
1.7 KiB
TypeScript
78 lines
1.7 KiB
TypeScript
|
export class GitVersion {
|
||
|
|
private readonly major: number = NaN
|
||
|
|
private readonly minor: number = NaN
|
||
|
|
private readonly patch: number = NaN
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Used for comparing the version of git and git-lfs against the minimum required version
|
||
|
|
* @param version the version string, e.g. 1.2 or 1.2.3
|
||
|
|
*/
|
||
|
|
constructor(version?: string) {
|
||
|
|
if (version) {
|
||
|
|
const match = version.match(/^(\d+)\.(\d+)(\.(\d+))?$/)
|
||
|
|
if (match) {
|
||
|
|
this.major = Number(match[1])
|
||
|
|
this.minor = Number(match[2])
|
||
|
|
if (match[4]) {
|
||
|
|
this.patch = Number(match[4])
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Compares the instance against a minimum required version
|
||
|
|
* @param minimum Minimum version
|
||
|
|
*/
|
||
|
|
checkMinimum(minimum: GitVersion): boolean {
|
||
|
|
if (!minimum.isValid()) {
|
||
|
|
throw new Error('Arg minimum is not a valid version')
|
||
|
|
}
|
||
|
|
|
||
|
|
// Major is insufficient
|
||
|
|
if (this.major < minimum.major) {
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
|
||
|
|
// Major is equal
|
||
|
|
if (this.major === minimum.major) {
|
||
|
|
// Minor is insufficient
|
||
|
|
if (this.minor < minimum.minor) {
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
|
||
|
|
// Minor is equal
|
||
|
|
if (this.minor === minimum.minor) {
|
||
|
|
// Patch is insufficient
|
||
|
|
if (this.patch && this.patch < (minimum.patch || 0)) {
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return true
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Indicates whether the instance was constructed from a valid version string
|
||
|
|
*/
|
||
|
|
isValid(): boolean {
|
||
|
|
return !isNaN(this.major)
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the version as a string, e.g. 1.2 or 1.2.3
|
||
|
|
*/
|
||
|
|
toString(): string {
|
||
|
|
let result = ''
|
||
|
|
if (this.isValid()) {
|
||
|
|
result = `${this.major}.${this.minor}`
|
||
|
|
if (!isNaN(this.patch)) {
|
||
|
|
result += `.${this.patch}`
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return result
|
||
|
|
}
|
||
|
|
}
|