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core.base.semver

A module to work with semantic versionning (semver). It allows you to parse version strings and access various components of a version such as major, minor, ...

We can use import("core.base.semver") for direct import and use.

semver.new

  • Create a new semver instance from a version string. Raise an error if the parsing failed
lua
local version = semver.new("v2.1.0")

semver.try_parse

  • Same as new, but return a nil value if the parsing failed
lua
local version = semver.try_parse("v2.1.0")

semver.match

  • Match a valid version from the string
lua
print(semver.match("v2.1.0", 1)) -- start from position 1
print(semver.match("v2.1.0", 0, "%d+%.%d+"))
2.1.0
2.1

semver.is_valid

  • Get if a given string version is valid, by testing if the version can be parsed
lua
print(semver.is_valid("536f2bd6a092eba91315b7d1e120dff63392a11d"))
print(semver.is_valid("v2.1.0-pre"))
false
true

semver.is_valid_range

  • Test if the given range is a valid one
lua
print(semver.is_valid_range(">2.1.0"))
print(semver.is_valid_range(">v2.1.0"))
print(semver.is_valid_range("2.0.0 - <2.1.0"))
print(semver.is_valid_range("1.0 || 2.1"))
true
false
false
true

semver.compare

  • Compare two versions, return a number between 1 and -1
lua
print(semver.compare("v2.2", "v2.2.0"))
print(semver.compare("v2.2.0", "v2.1.0"))
print(semver.compare("v2.1.1", "v2.1.0"))
print(semver.compare("v2.1.0", "v2.2.0"))
0
1
1
-1

semver.satisfies

  • Check if a version satisfies a range version
lua
print(semver.satisfies("v2.1.0", ">= 2.1"))
print(semver.satisfies("v2.1.0", ">1.0 <2.1"))
print(semver.satisfies("v2.1.0", ">1.0 || <2.1"))
print(semver.satisfies("v2.1.0", ">=2.x || 3.x - 4.x"))
true
false
true
true

semver.select

  • Select required version from versions, tags and branches
lua
local version, source = semver.select(">=1.5.0 <1.6", {"1.5.0", "1.5.1"}, {"v1.5.0"}, {"master", "dev"})
print(semver.select(">=1.5.0 <1.6", {"1.5.0", "1.5.1"}, {"v1.5.0"}, {"master", "dev"}))
print(semver.select("v1.5.0", {"1.5.0", "1.5.1"}, {"v1.5.0"}, {"master", "dev"}))
print(semver.select("master", {"1.5.0", "1.5.1"}, {"v1.5.0"}, {"master", "dev"}))
1.5.1 version
v1.5.0 tag
master branch

semver:get

  • Get a value from the informations table
lua
local version = semver.new("v2.1.0+build")
print(version["_INFO"])
print(version:get("major"))
{
  prerelease = { },
  build = {
    "build"
  },
  version = "v2.1.0+build",
  raw = "v2.1.0+build",
  patch = 0,
  minor = 1,
  major = 2
}

2

semver:major

  • Get the major version
lua
semver.new("v2.1.0"):major() -- return 2

semver:minor

  • Get the minor version
lua
semver.new("v2.1.0"):minor() -- return 1

semver:patch

  • Get the patch version
lua
semver.new("v2.1.0"):patch() -- return 0

semver:build

  • Get the build version
lua
semver.new("v2.1.0+build"):build() -- return {"build"}

semver:prerelease

  • Get the prerelease version
lua
semver.new("v2.1.0-prerelease"):prerelease() -- return {"prerelease"}

semver:rawstr

  • Get the raw string
lua
semver.new("v2.1.0+build"):rawstr() -- return v2.1.0+build

semver:shortstr

  • Get the short version string
lua
semver.new("v2.1.0+build"):shortstr() -- return 2.1.0