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nickclark2016nickclark2016
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Merge pull request #2554 from nickclark2016/feature/ninja-exporter
Ninja exporter for premake core
2 parents 6f17dac + ee73065 commit c835d19

24 files changed

+6184
-25
lines changed

‎modules/ninja/_manifest.lua‎

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--
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-- _manifest.lua
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-- Define the ninja manifest
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-- Author: Nick Clark
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-- Copyright (c) 2025 Jess Perkins and the Premake project
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--
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return {
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"_preload.lua",
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"ninja.lua",
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'ninja_cpp.lua',
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'ninja_workspace.lua',
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}

‎modules/ninja/_preload.lua‎

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--
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-- _preload.lua
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-- Define the ninja actions
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-- Author: Nick Clark
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-- Copyright (c) 2025 Jess Perkins and the Premake project
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--
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local p = premake
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local project = p.project
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local getrelative = p.tools.getrelative
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newaction {
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trigger = "ninja",
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shortname = "Ninja",
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description = "Generate Ninja build files",
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-- Action Capabilities
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valid_kinds = { "ConsoleApp", "WindowedApp", "StaticLib", "SharedLib", "None" },
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valid_languages = { "C", "C++" },
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valid_tools = {
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cc = {
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"gcc",
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"clang",
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"msc",
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"emcc",
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"cosmocc",
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}
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},
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toolset = (function()
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local target = os.target()
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if target == p.MACOSX then
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return "clang"
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elseif target == p.EMSCRIPTEN then
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return "emcc"
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elseif target == p.WINDOWS then
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return "msc"
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else
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return "gcc"
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end
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end)(),
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onInitialize = function()
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require("ninja")
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end,
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onWorkspace = function(wks)
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p.tools.getrelative = p.modules.ninja.getrelative
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p.escaper(p.modules.ninja.esc)
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wks.projects = table.filter(wks.projects, function(prj)
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return p.action.supports(prj.kind) and prj.kind ~= p.NONE
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end)
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p.generate(wks, p.modules.ninja.getninjafilename(wks, false), p.modules.ninja.wks.generate)
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p.tools.getrelative = getrelative
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p.escaper()
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end,
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onProject = function(prj)
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p.tools.getrelative = p.modules.ninja.getrelative
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p.escaper(p.modules.ninja.esc)
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if not p.action.supports(prj.kind) or prj.kind == p.NONE then
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return
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end
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if project.isc(prj) or project.iscpp(prj) then
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p.oven.assignObjectSequences(prj)
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p.generate(prj, p.modules.ninja.getprjconfigfilename(prj), p.modules.ninja.cpp.generate)
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else
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p.warn("Ninja does not support the '%s' language. No build file generated for project '%s'.", prj.language, prj.name)
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end
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p.tools.getrelative = getrelative
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p.escaper()
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end,
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}
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return function(cfg)
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return (_ACTION == "ninja")
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end

‎modules/ninja/ninja.lua‎

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--
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-- ninja.lua
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-- Utilities for generating Ninja build files
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-- Author: Nick Clark
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-- Copyright (c) 2025 Jess Perkins and the Premake project
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--
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local p = premake
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p.modules.ninja = {}
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p.modules.ninja._VERSION = p._VERSION
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local ninja = p.modules.ninja
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function ninja.esc(value)
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value = value:gsub("%$", "$$")
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value = value:gsub(":", "$:")
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value = value:gsub("\n", "$\n")
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value = value:gsub('%(', '\\(')
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value = value:gsub('%)', '\\)')
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value = value:gsub('"', '\\"')
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value = value:gsub(" ", "\\ ")
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return value
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end
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function ninja.header(target)
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local kind = iif(target.project, "project", "workspace")
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_p("# %s %s Ninja build file generated by Premake", target.name, kind)
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_p('ninja_required_version = 1.6')
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_p('')
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end
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function ninja.key(cfg)
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local name = cfg.project.name
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local buildcfg = cfg.buildcfg
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if cfg.platform then
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return name .. "_" .. (buildcfg or "") .. "_" .. cfg.platform
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else
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return name .. (buildcfg and ("_" .. buildcfg) or "")
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end
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end
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function ninja.getprjconfigfilename(prj)
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return prj.name .. ".ninja"
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end
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function ninja.getninjafilename(target, searchprjs)
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local count = 0
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for wks in p.global.eachWorkspace() do
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if wks.location == target.location then
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count = count + 1
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end
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if searchprjs then
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for _, prj in ipairs(wks.projects) do
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if prj.location == target.location then
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count = count + 1
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end
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end
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end
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end
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if count == 1 then
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return "build.ninja"
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else
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return target.name .. ".ninja"
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end
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end
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function ninja.gettoolset(cfg)
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local default = p.action.current().toolset
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local toolset, version = p.tools.canonical(cfg.toolset or default)
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if not toolset then
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error("No toolset found for '" .. tostring(cfg.toolset) .. "'")
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end
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return toolset
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end
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function ninja.list(value)
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if #value > 0 then
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return " " .. table.concat(value, " ")
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else
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return ""
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end
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end
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-- Override tools.getrelative to use workspace-relative paths for Ninja
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-- Ninja builds are always executed from the workspace root, so all paths
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-- must be relative to the workspace, not the project
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function ninja.getrelative(prj, value)
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if type(value) == "table" then
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local result = {}
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for i, name in ipairs(value) do
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result[i] = ninja.getrelative(prj, name)
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end
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return result
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else
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if value then
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local result = value
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if path.hasdeferredjoin(result) then
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result = path.resolvedeferredjoin(result)
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end
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-- Use workspace location instead of project location for Ninja
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return path.getrelative(prj.workspace.location, result)
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end
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end
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end
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include("ninja_cpp.lua")
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include("ninja_workspace.lua")
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return ninja

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