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package_base.lua
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package_base.lua
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---
-- Package management module
-- Package Base 'class'.
-- Copyright (c) 2017 Blizzard Entertainment
---
local p = premake
local m = p.modules.packagemanager
function m.createPackageBase(name, version)
local pkg = {
name = name,
version = version,
projects = {},
variants = {},
optionValues = {}
}
local _cache = {}
local function getCache(name, cfg)
local c = _cache[name]
if not c then
return nil
end
return c[cfg.name]
end
local function setCache(name, cfg, value)
_cache[name] = _cache[name] or {}
_cache[name][cfg.name] = value
end
local function getProperties(name, cfg, join)
local result = getCache(name, cfg)
if result then
return result
end
local filter = {
action = _ACTION,
system = os.getSystemTags(cfg.system or os.target()),
architecture = cfg.architecture,
toolset = cfg.toolset,
configurations = cfg.buildcfg,
tags = cfg.tags,
cfg = cfg
}
result = {}
local cacheresult = true
-- get variants that match this filter.
local variants = pkg:loadvariants(filter)
-- initialize variants that have just been loaded.
pkg:initialize()
-- combine properties.
for _, v in ipairs(variants) do
local items = v[name]
if type(items) == "function" then
items = items(cfg)
cacheresult = false
end
if items then
for _, value in ipairs(items) do
value = p.detoken.expand(value, cfg.environ, {pathVars=true}, v.location)
if join then
table.insert(result, path.join(v.location, value))
else
table.insert(result, value)
end
end
end
end
if cacheresult then
setCache(name, cfg, result)
end
return result
end
-- setup auto-resolve for includes.
function pkg.auto_includes(cfg)
return getProperties('includes', cfg, true)
end
-- setup auto-resolve for defines.
function pkg.auto_defines(cfg)
return getProperties('defines', cfg, false)
end
-- setup auto-resolve for dependson.
function pkg.auto_dependson(cfg)
return getProperties('dependson', cfg, false)
end
-- setup auto-resolve for links.
function pkg.auto_links(cfg)
return getProperties('links', cfg, false)
end
-- setup auto-resolve for libdirs.
function pkg.auto_libdirs(cfg)
return getProperties('libdirs', cfg, true)
end
-- setup auto-resolve for bindirs.
function pkg.auto_bindirs(cfg)
return getProperties('bindirs', cfg, true)
end
-- setup auto-resolve for includedependencies.
function pkg.auto_includedependencies(cfg)
return getProperties('includedependencies', cfg, false)
end
-- setup auto-resolve for linkdependencies.
function pkg.auto_linkdependencies(cfg)
return getProperties('linkdependencies', cfg, false)
end
-- setup auto-resolve for includepath.
function pkg.auto_includepath(cfg)
local r = pkg.auto_includes(cfg)
if (r and #r > 0) then
return r[1]
end
return nil
end
-- setup auto-resolve for binpath.
function pkg.auto_binpath(cfg)
local r = pkg.auto_bindirs(cfg)
if (r and #r > 0) then
return r[1]
end
return nil
end
-- Initializer method.
function pkg:initialize()
-- Remember the current _SCRIPT and working directory so we can restore them.
local cwd = os.getcwd()
local script = _SCRIPT
local scriptDir = _SCRIPT_DIR
-- Store current scope.
local scope = p.api.scope.current
-- add the criteria prefixes temporarily.
if self.options then
local noarch = self.variants['noarch']
for option, f in pairs(self.options) do
-- make sure we can set the options as a filter.
if criteria._validPrefixes[option] then
p.error('Cannot use a predefined filter prefix: %s', option)
end
criteria._validPrefixes[option] = true
-- deal with exporting defines from package options.
if noarch and f.define then
if f.kind == 'boolean' then
if self.optionValues[option] then
noarch.defines = noarch.defines or {}
table.insert(noarch.defines, f.define)
end
else
noarch.defines = noarch.defines or {}
table.insert(noarch.defines, f.define .. '=' .. self.optionValues[option])
end
end
end
end
-- go through each variant that is loaded, and execute the initializer.
local errors = {}
for name, variant in pairs(self.variants) do
if variant.loaded and variant.initializer then
-- Set the new _SCRIPT and working directory
_SCRIPT = variant.script
_SCRIPT_DIR = variant.location
os.chdir(variant.location)
-- store current package context.
local previous_package = package.current
package.current = variant
-- execute the callback, capture errors until the end, when scope is restored.
verbosef('initialize(%s, %s, %s)', self.name, name, operation or 'nil')
local ok, err = pcall(variant.initializer, 'project')
if not ok then
table.insert(errors, err)
end
-- and clear it, so we don't do it again in the future.
variant.initializer = nil
-- restore package context.
package.current = previous_package
end
end
-- restore the criteria prefixes.
if self.options then
for option, kind in pairs(self.options) do
criteria._validPrefixes[option] = nil
end
end
-- restore current scope.
p.api.scope.current = scope
-- Finally, restore the previous _SCRIPT variable and working directory
_SCRIPT = script
_SCRIPT_DIR = scriptDir
os.chdir(cwd)
-- throw the error if there was any.
if #errors > 0 then
p.error(table.concat(errors, "\n"))
end
end
function pkg:includeTests()
-- Remember the current _SCRIPT and working directory so we can restore them.
local cwd = os.getcwd()
local script = _SCRIPT
local scriptDir = _SCRIPT_DIR
-- Store current scope.
local scope = p.api.scope.current
-- go through each variant that is loaded, and execute the initializer.
for name, variant in pairs(self.variants) do
if variant.loaded and variant.testscript ~= nil then
-- Set the new _SCRIPT and working directory
_SCRIPT = variant.testscript
_SCRIPT_DIR = variant.location
os.chdir(variant.location)
-- store current package context.
local previous_package = package.current
package.current = variant
-- execute the testscript
dofile(variant.testscript)
-- restore package context.
package.current = previous_package
end
end
-- restore current scope.
p.api.scope.current = scope
-- Finally, restore the previous _SCRIPT variable and working directory
_SCRIPT = script
_SCRIPT_DIR = scriptDir
os.chdir(cwd)
end
return pkg
end