semver is a little tool to manipulate version bumping in a project that follows the semver 2.x specification. Its use are:
- bump version
- compare version
- extract specific version part
It can be combined with git pre-commit hooks to guarantee correct versioning.
Usage:
semver bump (major|minor|patch|release|prerel <prerel>|build <build>) <version>
semver compare <version> <other_version>
semver get (major|minor|patch|release|prerel|build) <version>
semver --help
semver --version
Arguments:
<version> A version must match the following regular expression:
"^[vV]?(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)(\-(0|[1-9][0-9]*|[0-9]*[A-Za-z-][0-9A-Za-z-]*)(\.(0|[1-9][0-9]*|[0-9]*[A-Za-z-][0-9A-Za-z-]*))*)?(\+[0-9A-Za-z-]+(\.[0-9A-Za-z-]+)*)?$"
In English:
-- The version must match X.Y.Z[-PRERELEASE][+BUILD]
where X, Y and Z are non-negative integers.
-- PRERELEASE is a dot separated sequence of non-negative integers and/or
identifiers composed of alphanumeric characters and hyphens (with
at least one non-digit). Numeric identifiers must not have leading
zeros. A hyphen ("-") introduces this optional part.
-- BUILD is a dot separated sequence of identifiers composed of alphanumeric
characters and hyphens. A plus ("+") introduces this optional part.
<other_version> See <version> definition.
<prerel> A string as defined by PRERELEASE above.
<build> A string as defined by BUILD above.
Options:
-v, --version Print the version of this tool.
-h, --help Print this help message.
Commands:
bump Bump by one of major, minor, patch; zeroing or removing
subsequent parts. "bump prerel" sets the PRERELEASE part and
removes any BUILD part. "bump build" sets the BUILD part.
"bump release" removes any PRERELEASE or BUILD parts.
The bumped version is written to stdout.
compare Compare <version> with <other_version>, output to stdout the
following values: -1 if <other_version> is newer, 0 if equal, 1 if
older. The BUILD part is not used in comparisons.
get Extract given part of <version>, where part is one of major, minor,
patch, prerel, build, or release.
See also:
https://semver.org -- Semantic Versioning 2.0.0
Basic bumping operations
$ semver bump patch 0.1.0
0.1.1
$ semver bump minor 0.1.1
0.2.0
$ semver bump patch 0.2.0
0.2.1
$ semver bump major 0.2.1
1.0.0
$ semver bump patch 1.0.0
1.0.1
$ semver bump prerel rc1.1.0 1.0.1
1.0.1-rc1.1.0
$ semver bump build build.051 1.0.1-rc1.1.0
1.0.1-rc1.1.0+build.051
$ semver bump release v0.1.0-SNAPSHOT
0.1.0
Comparing version for scripting
$ semver compare 1.0.1-rc1.1.0+build.051 1.0.1
-1
$ semver compare v1.0.1-rc1.1.0+build.051 V1.0.1-rc1.1.0
0
$ semver compare 1.0.1-rc1.1.0+build.051 1.0.1-rc1.1.0+build.052
0
$ semver compare 1.0.1-rc1.1.0+build.051 1.0.1-rb1.1.0
1
$ semver compare 10.1.4-rc4 10.4.2-rc1
-1
$ semver compare 10.1.4-rc4 10.4.2-1234
-1
Extract version part
$ semver get patch 1.2.3
3
$ semver get minor 1.2.3
2
$ semver get major 1.2.3
1
$ semver get prerel 1.2.3-rc.4
rc.4
$ semver get prerel 1.2.3-alpha.4.5
alpha.4.5
$ semver get build 1.2.3-rc.4+build.567
build.567
$ semver get release 1.2.3-rc.4+build.567
1.2.3
$ semver get prerel 1.2.3+build.568
$ semver get prerel 1.2.3-rc.4+build.569
rc.4
$ semver get prerel 1.2.3-rc-4+build.570
rc-4