38 lines
1.1 KiB
JavaScript
38 lines
1.1 KiB
JavaScript
const semver = require("semver");
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const previousVersion = (currentVersion, releaseType) => {
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const parsedVersion = semver.parse(currentVersion);
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switch (releaseType) {
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case "major": {
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return `v${parsedVersion.major - 1}.0.0`;
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}
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case "minor": {
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return `v${parsedVersion.major}.${parsedVersion.minor - 1}.0`;
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}
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case "patch": {
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return `v${parsedVersion.major}.${parsedVersion.minor}.${
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parsedVersion.patch - 1
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}`;
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}
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case "alpha": {
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return `v${parsedVersion.major}.${parsedVersion.minor}.${
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parsedVersion.patch
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}-alpha.${parsedVersion.prerelease[1] - 1}`;
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}
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case "beta": {
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return `v${parsedVersion.major}.${parsedVersion.minor}.${
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parsedVersion.patch
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}-beta.${parsedVersion.prerelease[1] - 1}`;
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}
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case "rc": {
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return `v${parsedVersion.major}.${parsedVersion.minor}.${
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parsedVersion.patch
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}-rc.${parsedVersion.prerelease[1] - 1}`;
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}
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}
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};
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const [currentVersion, releaseType] = process.argv.slice(-2);
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console.log(previousVersion(currentVersion, releaseType));
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