lu100 / semver-tool

semver bash implementation

The semver shell utility

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

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

examples

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