我已经覆盖了 vs2012 动作的 onProject 函数，它生成一些 cpp 文件，然后尝试将它们包含在项目中
--cant override the generateProject directly
--so have to override at the action level
premake.override( premake.action._list.vs2012, 'onProject', function(base, prj)
if premake.project.iscpp(prj) then
--generate files
--print( "Generating extra files ...")
local extraFiles = mine.getExtraFiles(prj)
for _,file in ipairs( extraFiles ) do
p.generate( file, nil, mine.generateExtraFile )
mine.addFileToSources(file)
end
end
--Generate regular stuff
base(prj)
end)
function mine.getExtraFiles(prj)
local extraFiles = {}
--works out what files to generate and add relevant info to table
return extraFiles
end
--this function is passed as a callback to premake.generate
function mine.generateExtraFile(extraFile)
--write contents of file
end
这是尝试将每个生成的文件添加到项目中的函数
function mine.addFileToSources(extraFile)
local prj = extraFile.prj
local cfg = extraFile.cfg
local groups = premake.vstudio.vc2010.categorizeSources(prj)
local compiledFiles = groups.ClCompile or {}
--create a new file config for generated file
local filename = path.join(extraFile.location, extraFile.filename)
local fcfg = premake.fileconfig.new( filename, prj)
premake.fileconfig.addconfig(fcfg, cfg)
--add the config to the project's sources
table.insert(compiledFiles, fcfg)
compiledFiles[filename] = fcfg
--add to the projects source tree
--this bit is copied from premake.project.getsourcetree
-- The tree represents the logical source code tree to be displayed
-- in the IDE, not the physical organization of the file system. So
-- virtual paths are used when adding nodes.
-- If the project script specifies a virtual path for a file, disable
-- the logic that could trim out empty root nodes from that path. If
-- the script writer wants an empty root node they should get it.
local flags
if fcfg.vpath ~= fcfg.relpath then
flags = { trim = false }
end
-- Virtual paths can overlap, potentially putting files with the same
-- name in the same folder, even though they have different paths on
-- the underlying filesystem. The tree.add() call won't overwrite
-- existing nodes, so provide the extra logic here. Start by getting
-- the parent folder node, creating it if necessary.
local tr = premake.project.getsourcetree(prj)
local parent = premake.tree.add(tr, path.getdirectory(fcfg.vpath), flags)
local node = premake.tree.insert(parent, premake.tree.new(path.getname(fcfg.vpath)))
-- Pass through value fetches to the file configuration
setmetatable(node, { __index = fcfg })
end
在大多数情况下 - 这一切都有效：文件正确生成并正确位置文件也正确包含在 vcxproj 文件中
我的问题是没有生成 vcxproj.filters 文件。当我运行 premake 我得到这个错误：
Generating myproject.vcxproj.filters...Error: [string "src/actions/vstudio/vs2010_vcxproj_filters...."]:82: attempt to index field 'parent' (a nil value)
它对应于函数 premake.vstudio.vc2010.filterGroup(prj, groups, group) 我知道我创建的新 fcfg 需要有一个父级，但我不知道应该将它添加到何处或添加什么。
任何人都可以帮忙吗？
编辑 1
通过将此行添加到函数 mine.addFileToSources(extraFile) 的末尾，我已经完成了工作
fcfg.parent = parent
这为文件配置提供了一个父节点，所以一切正常，但我觉得这样做有点脏，所以我会按照 Citron 的建议来看看
编辑 2
覆盖烘焙文件更加干净整洁。它不像 Citron 的代码那么简单，因为我需要来自烘焙文件的信息才能执行文件生成，但我现在确信我的代码是正确的，并且可能也可以与 vstudio 以外的其他导出器一起使用。
这是我的新代码：
premake.override( premake.oven, 'bakeFiles', function(base, prj)
--bake the files as normal
local bakedFiles = base(prj)
if premake.project.iscpp(prj) then
--gather information about what files to generate and how
local extraFiles = mine.getExtraFiles(prj, bakedFiles)
for _,file in ipairs( extraFiles ) do
--do the generation
premake.generate( file, file.extension, mine.generateExtraFile )
--add the new files
local filename = premake.filename(file, file.extension)
table.insert(file.cfg.files, filename)
-- This should be the first time I've seen this file, start a new
-- file configuration for it. Track both by key for quick lookups
-- and indexed for ordered iteration.
assert( bakedFiles[filename] == nil )
local fcfg = premake.fileconfig.new(filename, file.prj)
bakedFiles[filename] = fcfg
table.insert(bakedFiles, fcfg)
premake.fileconfig.addconfig( bakedFiles[filename], file.cfg)
end
--sort the baked files again - since we have added to them
table.sort(bakedFiles, function(a,b)
return a.vpath < b.vpath
end)
end
return bakedFiles
end)