mirror of
https://github.com/neovim/neovim.git
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08991b0782
Co-authored-by: Christian Clason <c.clason@uni-graz.at> Co-authored-by: Gregory Anders <greg@gpanders.com> Co-authored-by: HiPhish <hiphish@posteo.de> Co-authored-by: Julio B <julio.bacel@gmail.com> Co-authored-by: T727 <74924917+T-727@users.noreply.github.com> Co-authored-by: camoz <camoz@users.noreply.github.com> Co-authored-by: champignoom <66909116+champignoom@users.noreply.github.com>
419 lines
12 KiB
Lua
419 lines
12 KiB
Lua
--- @defgroup lua-version
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---
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--- @brief The \`vim.version\` module provides functions for comparing versions and ranges
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--- conforming to the https://semver.org spec. Plugins, and plugin managers, can use this to check
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--- available tools and dependencies on the current system.
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---
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--- Example:
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--- <pre>lua
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--- local v = vim.version.parse(vim.fn.system({'tmux', '-V'}), {strict=false})
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--- if vim.version.gt(v, {3, 2, 0}) then
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--- -- ...
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--- end
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--- </pre>
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---
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--- \*vim.version()\* returns the version of the current Nvim process.
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---
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--- VERSION RANGE SPEC \*version-range\*
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---
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--- A version "range spec" defines a semantic version range which can be tested against a version,
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--- using |vim.version.range()|.
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---
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--- Supported range specs are shown in the following table.
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--- Note: suffixed versions (1.2.3-rc1) are not matched.
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--- <pre>
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--- 1.2.3 is 1.2.3
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--- =1.2.3 is 1.2.3
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--- >1.2.3 greater than 1.2.3
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--- <1.2.3 before 1.2.3
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--- >=1.2.3 at least 1.2.3
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--- ~1.2.3 is >=1.2.3 <1.3.0 "reasonably close to 1.2.3"
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--- ^1.2.3 is >=1.2.3 <2.0.0 "compatible with 1.2.3"
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--- ^0.2.3 is >=0.2.3 <0.3.0 (0.x.x is special)
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--- ^0.0.1 is =0.0.1 (0.0.x is special)
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--- ^1.2 is >=1.2.0 <2.0.0 (like ^1.2.0)
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--- ~1.2 is >=1.2.0 <1.3.0 (like ~1.2.0)
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--- ^1 is >=1.0.0 <2.0.0 "compatible with 1"
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--- ~1 same "reasonably close to 1"
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--- 1.x same
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--- 1.* same
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--- 1 same
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--- * any version
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--- x same
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---
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--- 1.2.3 - 2.3.4 is >=1.2.3 <=2.3.4
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---
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--- Partial right: missing pieces treated as x (2.3 => 2.3.x).
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--- 1.2.3 - 2.3 is >=1.2.3 <2.4.0
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--- 1.2.3 - 2 is >=1.2.3 <3.0.0
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---
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--- Partial left: missing pieces treated as 0 (1.2 => 1.2.0).
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--- 1.2 - 2.3.0 is 1.2.0 - 2.3.0
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--- </pre>
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local M = {}
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---@class Version
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---@field [1] number
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---@field [2] number
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---@field [3] number
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---@field major number
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---@field minor number
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---@field patch number
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---@field prerelease? string
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---@field build? string
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local Version = {}
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Version.__index = Version
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--- @private
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---
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--- Compares prerelease strings: per semver, number parts must be must be treated as numbers:
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--- "pre1.10" is greater than "pre1.2". https://semver.org/#spec-item-11
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local function cmp_prerel(prerel1, prerel2)
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if not prerel1 or not prerel2 then
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return prerel1 and -1 or (prerel2 and 1 or 0)
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end
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-- TODO(justinmk): not fully spec-compliant; this treats non-dot-delimited digit sequences as
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-- numbers. Maybe better: "(.-)(%.%d*)".
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local iter1 = prerel1:gmatch('([^0-9]*)(%d*)')
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local iter2 = prerel2:gmatch('([^0-9]*)(%d*)')
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while true do
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local word1, n1 = iter1()
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local word2, n2 = iter2()
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if word1 == nil and word2 == nil then -- Done iterating.
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return 0
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end
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word1, n1, word2, n2 =
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word1 or '', n1 and tonumber(n1) or 0, word2 or '', n2 and tonumber(n2) or 0
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if word1 ~= word2 then
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return word1 < word2 and -1 or 1
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end
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if n1 ~= n2 then
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return n1 < n2 and -1 or 1
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end
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end
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end
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function Version:__index(key)
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return type(key) == 'number' and ({ self.major, self.minor, self.patch })[key] or Version[key]
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end
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function Version:__newindex(key, value)
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if key == 1 then
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self.major = value
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elseif key == 2 then
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self.minor = value
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elseif key == 3 then
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self.patch = value
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else
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rawset(self, key, value)
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end
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end
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---@param other Version
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function Version:__eq(other)
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for i = 1, 3 do
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if self[i] ~= other[i] then
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return false
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end
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end
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return 0 == cmp_prerel(self.prerelease, other.prerelease)
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end
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function Version:__tostring()
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local ret = table.concat({ self.major, self.minor, self.patch }, '.')
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if self.prerelease then
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ret = ret .. '-' .. self.prerelease
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end
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if self.build then
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ret = ret .. '+' .. self.build
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end
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return ret
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end
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---@param other Version
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function Version:__lt(other)
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for i = 1, 3 do
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if self[i] > other[i] then
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return false
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elseif self[i] < other[i] then
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return true
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end
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end
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return -1 == cmp_prerel(self.prerelease, other.prerelease)
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end
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---@param other Version
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function Version:__le(other)
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return self < other or self == other
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end
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--- @private
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---
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--- Creates a new Version object, or returns `nil` if `version` is invalid.
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---
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--- @param version string|number[]|Version
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--- @param strict? boolean Reject "1.0", "0-x", "3.2a" or other non-conforming version strings
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--- @return Version?
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function M._version(version, strict) -- Adapted from https://github.com/folke/lazy.nvim
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if type(version) == 'table' then
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if version.major then
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return setmetatable(vim.deepcopy(version), Version)
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end
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return setmetatable({
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major = version[1] or 0,
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minor = version[2] or 0,
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patch = version[3] or 0,
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}, Version)
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end
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if not strict then -- TODO: add more "scrubbing".
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version = version:match('%d[^ ]*')
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end
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local prerel = version:match('%-([^+]*)')
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local prerel_strict = version:match('%-([0-9A-Za-z-]*)')
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if
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strict
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and prerel
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and (prerel_strict == nil or prerel_strict == '' or not vim.startswith(prerel, prerel_strict))
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then
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return nil -- Invalid prerelease.
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end
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local build = prerel and version:match('%-[^+]*%+(.*)$') or version:match('%+(.*)$')
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local major, minor, patch =
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version:match('^v?(%d+)%.?(%d*)%.?(%d*)' .. (strict and (prerel and '%-' or '$') or ''))
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if
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(not strict and major)
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or (major and minor and patch and major ~= '' and minor ~= '' and patch ~= '')
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then
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return setmetatable({
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major = tonumber(major),
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minor = minor == '' and 0 or tonumber(minor),
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patch = patch == '' and 0 or tonumber(patch),
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prerelease = prerel ~= '' and prerel or nil,
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build = build ~= '' and build or nil,
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}, Version)
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end
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return nil -- Invalid version string.
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end
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---TODO: generalize this, move to func.lua
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---
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---@generic T: Version
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---@param versions T[]
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---@return T?
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function M.last(versions)
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local last = versions[1]
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for i = 2, #versions do
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if versions[i] > last then
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last = versions[i]
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end
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end
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return last
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end
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---@class Range
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---@field from Version
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---@field to? Version
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local Range = {}
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--- @private
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---
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---@param version string|Version
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function Range:has(version)
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if type(version) == 'string' then
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---@diagnostic disable-next-line: cast-local-type
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version = M.parse(version)
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end
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if version then
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if version.prerelease ~= self.from.prerelease then
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return false
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end
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return version >= self.from and (self.to == nil or version < self.to)
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end
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end
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--- Parses a semver |version-range| "spec" and returns a range object:
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--- <pre>
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--- {
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--- from: Version
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--- to: Version
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--- has(v: string|Version)
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--- }
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--- </pre>
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---
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--- `:has()` checks if a version is in the range (inclusive `from`, exclusive `to`). Example:
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--- <pre>lua
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--- local r = vim.version.range('1.0.0 - 2.0.0')
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--- print(r:has('1.9.9')) -- true
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--- print(r:has('2.0.0')) -- false
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--- </pre>
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---
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--- Or use cmp(), eq(), lt(), and gt() to compare `.to` and `.from` directly:
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--- <pre>lua
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--- local r = vim.version.range('1.0.0 - 2.0.0')
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--- print(vim.version.gt({1,0,3}, r.from) and vim.version.lt({1,0,3}, r.to))
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--- </pre>
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---
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--- @see # https://github.com/npm/node-semver#ranges
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---
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--- @param spec string Version range "spec"
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function M.range(spec) -- Adapted from https://github.com/folke/lazy.nvim
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if spec == '*' or spec == '' then
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return setmetatable({ from = M.parse('0.0.0') }, { __index = Range })
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end
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---@type number?
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local hyphen = spec:find(' - ', 1, true)
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if hyphen then
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local a = spec:sub(1, hyphen - 1)
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local b = spec:sub(hyphen + 3)
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local parts = vim.split(b, '.', { plain = true })
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local ra = M.range(a)
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local rb = M.range(b)
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return setmetatable({
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from = ra and ra.from,
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to = rb and (#parts == 3 and rb.from or rb.to),
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}, { __index = Range })
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end
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---@type string, string
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local mods, version = spec:lower():match('^([%^=>~]*)(.*)$')
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version = version:gsub('%.[%*x]', '')
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local parts = vim.split(version:gsub('%-.*', ''), '.', { plain = true })
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if #parts < 3 and mods == '' then
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mods = '~'
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end
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local semver = M.parse(version)
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if semver then
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local from = semver
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local to = vim.deepcopy(semver)
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if mods == '' or mods == '=' then
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to.patch = to.patch + 1
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elseif mods == '>' then
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from.patch = from.patch + 1
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to = nil ---@diagnostic disable-line: cast-local-type
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elseif mods == '>=' then
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to = nil ---@diagnostic disable-line: cast-local-type
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elseif mods == '~' then
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if #parts >= 2 then
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to[2] = to[2] + 1
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to[3] = 0
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else
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to[1] = to[1] + 1
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to[2] = 0
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to[3] = 0
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end
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elseif mods == '^' then
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for i = 1, 3 do
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if to[i] ~= 0 then
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to[i] = to[i] + 1
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for j = i + 1, 3 do
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to[j] = 0
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end
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break
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end
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end
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end
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return setmetatable({ from = from, to = to }, { __index = Range })
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end
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end
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---@private
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---@param v string|Version
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---@return string
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local function create_err_msg(v)
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if type(v) == 'string' then
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return string.format('invalid version: "%s"', tostring(v))
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elseif type(v) == 'table' and v.major then
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return string.format('invalid version: %s', vim.inspect(v))
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end
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return string.format('invalid version: %s (%s)', tostring(v), type(v))
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end
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--- Parses and compares two version objects (the result of |vim.version.parse()|, or
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--- specified literally as a `{major, minor, patch}` tuple, e.g. `{1, 0, 3}`).
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---
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--- Example:
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--- <pre>lua
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--- if vim.version.cmp({1,0,3}, {0,2,1}) == 0 then
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--- -- ...
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--- end
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--- local v1 = vim.version.parse('1.0.3-pre')
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--- local v2 = vim.version.parse('0.2.1')
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--- if vim.version.cmp(v1, v2) == 0 then
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--- -- ...
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--- end
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--- </pre>
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---
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--- @note Per semver, build metadata is ignored when comparing two otherwise-equivalent versions.
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---
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---@param v1 Version|number[] Version object.
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---@param v2 Version|number[] Version to compare with `v1`.
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---@return integer -1 if `v1 < v2`, 0 if `v1 == v2`, 1 if `v1 > v2`.
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function M.cmp(v1, v2)
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local v1_parsed = assert(M._version(v1), create_err_msg(v1))
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local v2_parsed = assert(M._version(v2), create_err_msg(v1))
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if v1_parsed == v2_parsed then
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return 0
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end
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if v1_parsed > v2_parsed then
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return 1
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end
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return -1
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end
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---Returns `true` if the given versions are equal. See |vim.version.cmp()| for usage.
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---@param v1 Version|number[]
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---@param v2 Version|number[]
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---@return boolean
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function M.eq(v1, v2)
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return M.cmp(v1, v2) == 0
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end
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---Returns `true` if `v1 < v2`. See |vim.version.cmp()| for usage.
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---@param v1 Version|number[]
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---@param v2 Version|number[]
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---@return boolean
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function M.lt(v1, v2)
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return M.cmp(v1, v2) == -1
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end
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---Returns `true` if `v1 > v2`. See |vim.version.cmp()| for usage.
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---@param v1 Version|number[]
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---@param v2 Version|number[]
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---@return boolean
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function M.gt(v1, v2)
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return M.cmp(v1, v2) == 1
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end
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--- Parses a semantic version string and returns a version object which can be used with other
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--- `vim.version` functions. For example "1.0.1-rc1+build.2" returns:
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--- <pre>
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--- { major = 1, minor = 0, patch = 1, prerelease = "rc1", build = "build.2" }
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--- </pre>
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---
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--- @see # https://semver.org/spec/v2.0.0.html
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---
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---@param version string Version string to parse.
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---@param opts table|nil Optional keyword arguments:
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--- - strict (boolean): Default false. If `true`, no coercion is attempted on
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--- input not conforming to semver v2.0.0. If `false`, `parse()` attempts to
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--- coerce input such as "1.0", "0-x", "tmux 3.2a" into valid versions.
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---@return table|nil parsed_version Version object or `nil` if input is invalid.
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function M.parse(version, opts)
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assert(type(version) == 'string', create_err_msg(version))
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opts = opts or { strict = false }
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return M._version(version, opts.strict)
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end
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setmetatable(M, {
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__call = function()
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return vim.fn.api_info().version
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end,
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})
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return M
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