window下使用batchcmds:vrunv生成cmake项目时，参数的\不会转义吗？

[Yiklek]

使用xmake调用的命令可以正常执行，编译也可以通过,。但生成的cmake会报错，应该是没转义\，手动换成\\或/可以编译。
这个问题是正常的吗？如果我想生成cmake是要额外处理路径吗？

xmake: 2.6.4
cmake: 3.22.3

复现
main.c

int main(int argc, char *argv[])
{
    return 0;
}

readme.md

test

xmake.lua

rule("md")
    set_extensions(".md")
    before_buildcmd_files(function(target, batchcmds, sourcefiles, opt)
        import("lib.detect.find_program")
        local curl = find_program("curl")
        print(curl)
        batchcmds:vrunv(curl, {"https://baidu.com", "-o", path.join("E:", "baidu.html")})
    end)

target("test")
    add_files("main.c","*.md")
    add_rules("md")

生成的CMakeLists.txt

# this is the build file for project
# it is autogenerated by the xmake build system.
# do not edit by hand.

# project
cmake_minimum_required(VERSION 3.15.0)
cmake_policy(SET CMP0091 NEW)
project(test LANGUAGES C CXX)

# target
add_executable(test "")
set_target_properties(test PROPERTIES OUTPUT_NAME "test")
set_target_properties(test PROPERTIES RUNTIME_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/build/windows/x64/release")
target_compile_options(test PRIVATE
    $<$<COMPILE_LANGUAGE:C>:-DNDEBUG>
    $<$<COMPILE_LANGUAGE:CXX>:-DNDEBUG>
)
if(MSVC)
    target_compile_options(test PRIVATE $<$<CONFIG:Release>:-Ox -fp:fast>)
else()
    target_compile_options(test PRIVATE -O3)
endif()
if(MSVC)
    set_property(TARGET test PROPERTY
        MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
endif()
add_custom_command(OUTPUT output_test_2156A67D
    COMMAND curl https://baidu.com -o E:\baidu.com
    VERBATIM
)
add_custom_target(target_test_2156A67D
    DEPENDS output_test_2156A67D
)
add_dependencies(test target_test_2156A67D)
target_sources(test PRIVATE
    main.c
)

cmake 报错

-- Selecting Windows SDK version 10.0.19041.0 to target Windows 10.0.19044.
CMake Error at CMakeLists.txt:27 (add_custom_command):
  Syntax error in cmake code at

    E:/test/CMakeLists.txt:28

  when parsing string

    E:\baidu.com

  Invalid character escape '\b'.


-- Configuring incomplete, errors occurred!
See also "E:/test/build/CMakeFiles/CMakeOutput.log".

[waruqi]

更新到 dev 再试试 xmake update -s dev

[Yiklek]

转义的问题可以了
但更新到dev后用find_tool找不到我自定义包里的命令了，之前是可以的。现在要改成find_program才行。
但是find_program找到的不是绝对路径，所以生成的cmake不能成功构建。

➜ xmake project -k cmake
error: mlir-tblgen not found!
➜ xmake
error: ...mdir\core\sandbox\modules\import\core\base\scheduler.lua:56: mlir-tblgen not found!
stack traceback:
        @programdir\core\base\utils.lua:290: in function <@programdir\core\base\utils.lua:280>
        [C]: in function 'error'
        @programdir\core\base\os.lua:849: in function 'base/os.raiselevel'
        (...tail calls...)
        ...mdir\core\sandbox\modules\import\core\base\scheduler.lua:56: in field 'co_start_withopt'
        @programdir\modules\private\async\runjobs.lua:199: in function <@programdir\modules\private\async\runjobs.lua:159>
        [C]: in function 'xpcall'
        @programdir\core\base\utils.lua:280: in function 'base/utils.trycall'
        @programdir\core\base\scheduler.lua:487: in function 'base/scheduler.co_group_begin'
        ...mdir\core\sandbox\modules\import\core\base\scheduler.lua:94: in field 'co_group_begin'
        @programdir\modules\private\async\runjobs.lua:159: in function <@programdir\modules\private\async\runjobs.lua:54>
        (...tail calls...)
        @programdir\actions\build\build.lua:244: in function <@programdir\actions\build\build.lua:238>
        (...tail calls...)
        @programdir\actions\build\main.lua:101: in global '_do_build'
        @programdir\actions\build\main.lua:143: in function <@programdir\actions\build\main.lua:137>
        [C]: in function 'xpcall'
        @programdir\core\base\utils.lua:280: in function 'base/utils.trycall'
        @programdir\core\sandbox\modules\try.lua:121: in global 'try'
        @programdir\actions\build\main.lua:135: in function <@programdir\actions\build\main.lua:106>
        (...tail calls...)
        [C]: in function 'xpcall'
        @programdir\core\base\utils.lua:280: in function 'base/utils.trycall'
        (...tail calls...)
        @programdir\core\base\task.lua:519: in function 'base/task.run'
        @programdir\core\main.lua:278: in upvalue 'cotask'
        @programdir\core\base\scheduler.lua:371: in function <@programdir\core\base\scheduler.lua:368>

[waruqi]

find 这块没改，可以 xmake f -c 清下cache 重新检测下试试

[Yiklek]

find 这块没改，可以 xmake f -c 清下cache 重新检测下试试

这个可能是我搞错了，之设了变量。
不过我生成的参数都是绝对路径的，为什么现在生成cmake后变成了相对路径

{
  "-I",
  "e:\xmake_pkg\l\llvm-mlir\14.0.0-rc4-prebuilt\4754b5e437974e0186c8419a7e228c96\include",
  "-I",
  "E:\MLParalell\examples\toy\Ch3\include",
  "-I",
  "E:\MLParalell\build\.gens\ch3\windows\x64\release",
  "-I",
  "E:\MLParalell\examples\toy\Ch3",
  "-o",
  "E:\MLParalell\build\.gens\ch3\windows\x64\release\ToyCombine.inc",
  "-gen-rewriters",
  "E:\MLParalell\examples\toy\Ch3\mlir\ToyCombine.td"
}

create ok!
➜ cd .\build\
➜ cmake ..
-- Selecting Windows SDK version 10.0.19041.0 to target Windows 10.0.19044.
-- Configuring done
-- Generating done
-- Build files have been written to: E:/MLParalell/build
➜ cmake --build .
用于 .NET Framework 的 Microsoft (R) 生成引擎版本 16.11.1+3e40a09f8
版权所有(C) Microsoft Corporation。保留所有权利。

  Checking Build System
  ch1.vcxproj -> E:\MLParalell\build\windows\x64\release\Debug\ch1.exe
  Generating output_ch2_0C33DD6B
  e:\xmake_pkg\l\llvm-mlir\14.0.0-rc4-prebuilt\4754b5e437974e0186c8419a7e228c96\bin\mlir-tblgen.exe: Could not open input file 'examples/toy/Ch2/include/toy/Ops.td': no such file or directory
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(241,5): error MSB8066: “E:\MLParalell\build\CMakeFiles\b7c409d68ba68b867a8e7d3bed5788a6\outp
ut_ch2_0C33DD6B.rule;E:\MLParalell\build\CMakeFiles\463359f6f81a252c202580cc69db54e1\target_ch2_0C33DD6B.rule;E:\MLParalell\CMakeLists.txt”的自定义生成已退出，代码为 1。 [E:\MLParalell\build\target_ch2_0C33DD6B.vcxproj]

add_dependencies(ch3 target_ch3_87BBBAD5)
add_custom_command(OUTPUT output_ch3_D0CA839E
    COMMAND e:/xmake_pkg/l/llvm-mlir/14.0.0-rc4-prebuilt/4754b5e437974e0186c8419a7e228c96/bin/mlir-tblgen.exe -I e:/xmake_pkg/l/llvm-mlir/14.0.0-rc4-prebuilt/4754b5e437974e0186c8419a7e228c96/include -I examples/toy/Ch3/include -I build/.gens/ch3/windows/x64/release -I examples/toy/Ch3 -o build/.gens/ch3/windows/x64/release/toy/Ops.cpp.inc -gen-op-defs examples/toy/Ch3/include/toy/Ops.td
    VERBATIM
)

[waruqi]

在更新下试试

[Yiklek]

可以了！谢谢 😄