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--!A cross-platform build utility based on Lua
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
--
-- Copyright (C) 2015 - 2019, TBOOX Open Source Group.
--
-- @author ruki
-- @file build_files.lua
--
-- imports
import("core.base.option")
import("core.project.config")
import("core.project.project")
import("core.platform.environment")
import("kinds.object")
-- match source files
function _match_sourcefiles(sourcefile, filepatterns)
for _, filepattern in ipairs(filepatterns) do
if sourcefile:match(filepattern.pattern) == sourcefile then
if filepattern.excludes then
if filepattern.rootdir and sourcefile:startswith(filepattern.rootdir) then
sourcefile = sourcefile:sub(#filepattern.rootdir + 2)
end
for _, exclude in ipairs(filepattern.excludes) do
if sourcefile:match(exclude) == sourcefile then
return false
end
end
end
return true
end
end
end
-- prepare jobs for target
function _prepare_jobs_for_target(jobs, target, filepatterns)
local newbatches = {}
local sourcecount = 0
for sourcekind, sourcebatch in pairs(target:sourcebatches()) do
local objectfiles = sourcebatch.objectfiles
local dependfiles = sourcebatch.dependfiles
for idx, sourcefile in ipairs(sourcebatch.sourcefiles) do
if _match_sourcefiles(sourcefile, filepatterns) then
local newbatch = newbatches[sourcekind]
if not newbatch then
newbatch = {}
newbatch.sourcekind = sourcekind
newbatch.rulename = sourcebatch.rulename
newbatch.sourcefiles = {}
newbatch.objectfiles = {}
newbatch.dependfiles = {}
end
table.insert(newbatch.sourcefiles, sourcefile)
table.insert(newbatch.objectfiles, objectfiles[idx])
table.insert(newbatch.dependfiles, dependfiles[idx])
newbatches[sourcekind] = newbatch
sourcecount = sourcecount + 1
end
end
end
if sourcecount > 0 then
table.insert(jobs, {target = target, sourcecount = sourcecount, sourcebatches = newbatches})
end
end
-- prepare jobs for the given target and deps
function _prepare_jobs_for_targetdeps(jobs, target, filepatterns)
-- this target have been finished?
if _g.finished[target:name()] then
return
end
-- make for all dependent targets
for _, depname in ipairs(target:get("deps")) do
_prepare_jobs_for_targetdeps(jobs, project.target(depname), filepatterns)
end
-- prepare jobs for target
_prepare_jobs_for_target(jobs, target, filepatterns)
-- finished
_g.finished[target:name()] = true
end
-- prepare jobs
function _prepare_jobs(targetname, filepatterns)
-- clear finished states
_g.finished = {}
-- prepare jobs for the given target?
local jobs = {}
if targetname then
_prepare_jobs_for_targetdeps(jobs, project.target(targetname), filepatterns)
else
-- prepare jobs for default or all targets
for _, target in pairs(project.targets()) do
local default = target:get("default")
if default == nil or default == true or option.get("all") then
_prepare_jobs_for_targetdeps(jobs, target, filepatterns)
end
end
end
-- get source total count
local sourcecount = 0
for _, job in ipairs(jobs) do
sourcecount = sourcecount + job.sourcecount
end
return jobs, sourcecount
end
-- convert all sourcefiles to lua pattern
function _get_file_patterns(sourcefiles)
local patterns = {}
for _, sourcefile in ipairs(path.splitenv(sourcefiles)) do
-- get the excludes
local pattern = sourcefile:trim()
local excludes = pattern:match("|.*$")
if excludes then excludes = excludes:split("|", {plain = true}) end
-- translate excludes
if excludes then
local _excludes = {}
for _, exclude in ipairs(excludes) do
exclude = path.translate(exclude)
exclude = exclude:gsub("([%+%.%-%^%$%(%)%%])", "%%%1")
exclude = exclude:gsub("%*%*", "\001")
exclude = exclude:gsub("%*", "\002")
exclude = exclude:gsub("\001", ".*")
exclude = exclude:gsub("\002", "[^/]*")
table.insert(_excludes, exclude)
end
excludes = _excludes
end
-- translate path and remove some repeat separators
pattern = path.translate(pattern:gsub("|.*$", ""))
-- remove "./" or '.\\' prefix
if pattern:sub(1, 2):find('%.[/\\]') then
pattern = pattern:sub(3)
end
-- get the root directory
local rootdir = pattern
local startpos = pattern:find("*", 1, true)
if startpos then
rootdir = rootdir:sub(1, startpos - 1)
end
rootdir = path.directory(rootdir)
-- convert to lua path pattern
pattern = path.pattern(pattern)
table.insert(patterns, {pattern = pattern, excludes = excludes, rootdir = rootdir})
end
return patterns
end
-- the main entry
function main(targetname, sourcefiles)
-- convert all sourcefiles to lua pattern
local filepatterns = _get_file_patterns(sourcefiles)
-- prepare jobs
local jobs, sourcecount = _prepare_jobs(targetname, filepatterns)
if #jobs == 0 or sourcecount == 0 then
return
end
-- enter toolchains environment
environment.enter("toolchains")
-- build source files for all jobs
_g.finished = {}
_g.targetindex = 0
_g.targetcount = 1
_g.sourceindex = 1
_g.sourcecount = sourcecount
for _, job in ipairs(jobs) do
object.build_sourcefiles(job.target, _g, job.sourcebatches)
end
-- leave toolchains environment
environment.leave("toolchains")
end
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