Git worktree results in cmake error. (IDFGH-1937)

[raldone01]

Environment

• Development Kit: ESP32-DevKitC
• IDF version v4.0-dev-1287-gd7e659df2
• Build System: CMake
• Compiler version xtensa-esp32-elf-gcc (crosstool-NG esp32-2019r1) 8.2.0
• Operating System: Windows

Problem Description

I created a git worktree with git worktree add ../master master.
tree:

projectRGBDisplay/
├── master
│   ├── .git
│   ├── .gitignore
│   ├── .idea
│   │   ├── .name
│   │   ├── deployment.xml
│   │   ├── encodings.xml
│   │   ├── misc.xml
│   │   ├── modules.xml
│   │   ├── projectRGBDisplay.iml
│   │   ├── vcs.xml
│   │   └── workspace.xml
│   ├── README.md
│   └── Software
│       ├── cmake-build-debug
│       ├── CMakeLists.txt
│       ├── espmake
│       ├── main
│       ├── partitions.csv
│       ├── sdkconfig
│       └── sdkconfig.old
└── projectRGBDisplay
    ├── .git
    │   ├── COMMIT_EDITMSG
    │   ├── config
    │   ├── description
    │   ├── FETCH_HEAD
    │   ├── HEAD
    │   ├── hooks
    │   ├── index
    │   ├── info
    │   ├── logs
    │   ├── objects
    │   ├── ORIG_HEAD
    │   ├── refs
    │   └── worktrees
    ├── .gitignore
    ├── .idea
    │   ├── .name
    │   ├── deployment.xml
    │   ├── encodings.xml
    │   ├── misc.xml
    │   ├── modules.xml
    │   ├── projectRGBDisplay.iml
    │   ├── vcs.xml
    │   └── workspace.xml
    ├── README.md
    └── Software
        ├── build
        ├── cmake-build-debug
        ├── CMakeLists.txt
        ├── espmake
        ├── main
        ├── Makefile
        ├── partitions.csv
        ├── sdkconfig
        └── sdkconfig.old

Expected Behavior

Successful compilation from the worktree.

Actual Behavior

CMAKE error occours when building from the worktree.

Steps to repropduce

1. Checkout a branch
2. Create a worktree in another directory
3. Try to compile from the worktree directory

Debug Logs

-- Found Git: W:/Programs/git-sdk/cmd/git.exe (found version "2.23.0.windows.1") 
-- IDF_TARGET not set, using default target: esp32
-- The C compiler identification is GNU 8.2.0
-- The CXX compiler identification is GNU 8.2.0
-- The ASM compiler identification is GNU
-- Found assembler: C:/esp32deps/auto/.espressif/tools/xtensa-esp32-elf/esp32-2019r1-8.2.0/xtensa-esp32-elf/bin/xtensa-esp32-elf-gcc.exe
-- Check for working C compiler: C:/esp32deps/auto/.espressif/tools/xtensa-esp32-elf/esp32-2019r1-8.2.0/xtensa-esp32-elf/bin/xtensa-esp32-elf-gcc.exe
-- Check for working C compiler: C:/esp32deps/auto/.espressif/tools/xtensa-esp32-elf/esp32-2019r1-8.2.0/xtensa-esp32-elf/bin/xtensa-esp32-elf-gcc.exe -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: C:/esp32deps/auto/.espressif/tools/xtensa-esp32-elf/esp32-2019r1-8.2.0/xtensa-esp32-elf/bin/xtensa-esp32-elf-g++.exe
-- Check for working CXX compiler: C:/esp32deps/auto/.espressif/tools/xtensa-esp32-elf/esp32-2019r1-8.2.0/xtensa-esp32-elf/bin/xtensa-esp32-elf-g++.exe -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Error: File C:/Users/_/Desktop/projectRGBDisplay/projectRGBDisplay/.git/worktrees/master/packed-refs does not exist.
CMake Error at cmake-build-debug/CMakeFiles/git-data/grabRef.cmake:27 (configure_file):
  configure_file Problem configuring file
Call Stack (most recent call first):
  C:/esp32deps/auto/esp-idf/tools/cmake/third_party/GetGitRevisionDescription.cmake:80 (include)
  C:/esp32deps/auto/esp-idf/tools/cmake/third_party/GetGitRevisionDescription.cmake:90 (get_git_head_revision)
  C:/esp32deps/auto/esp-idf/tools/cmake/project.cmake:37 (git_describe)
  C:/esp32deps/auto/esp-idf/tools/cmake/project.cmake:337 (__project_get_revision)
  CMakeLists.txt:13 (project)


CMake Error at cmake-build-debug/CMakeFiles/git-data/grabRef.cmake:28 (file):
  file failed to open for reading (No such file or directory):

    C:/Users/_/Desktop/projectRGBDisplay/master/Software/cmake-build-debug/CMakeFiles/git-data/packed-refs
Call Stack (most recent call first):
  C:/esp32deps/auto/esp-idf/tools/cmake/third_party/GetGitRevisionDescription.cmake:80 (include)
  C:/esp32deps/auto/esp-idf/tools/cmake/third_party/GetGitRevisionDescription.cmake:90 (get_git_head_revision)
  C:/esp32deps/auto/esp-idf/tools/cmake/project.cmake:37 (git_describe)
  C:/esp32deps/auto/esp-idf/tools/cmake/project.cmake:337 (__project_get_revision)
  CMakeLists.txt:13 (project)


-- Project version: 9ad100a-dirty
-- Building ESP-IDF components for target esp32
-- Checking Python dependencies...
Python requirements from C:\esp32deps\auto\esp-idf\requirements.txt are satisfied.
-- Found PythonInterp: C:/esp32deps/auto/.espressif/python_env/idf4.0_py3.6_env/Scripts/python.exe (found version "3.6.4") 
-- Could NOT find Perl (missing: PERL_EXECUTABLE) 
-- Adding linker script C:/Users/_/Desktop/projectRGBDisplay/master/Software/cmake-build-debug/esp-idf/esp32/esp32_out.ld
-- Adding linker script C:/esp32deps/auto/esp-idf/components/esp32/ld/esp32.project.ld.in
-- Adding linker script C:/esp32deps/auto/esp-idf/components/esp32/ld/esp32.peripherals.ld
-- Adding linker script C:/esp32deps/auto/esp-idf/components/esp_rom/esp32/ld/esp32.rom.ld
-- Adding linker script C:/esp32deps/auto/esp-idf/components/esp_rom/esp32/ld/esp32.rom.libgcc.ld
-- Adding linker script C:/esp32deps/auto/esp-idf/components/esp_rom/esp32/ld/esp32.rom.syscalls.ld
-- Adding linker script C:/esp32deps/auto/esp-idf/components/esp_rom/esp32/ld/esp32.rom.newlib-data.ld
-- Adding linker script C:/esp32deps/auto/esp-idf/components/esp_rom/esp32/ld/esp32.rom.newlib-funcs.ld
-- Components: app_trace app_update asio bootloader bootloader_support bt coap console cxx driver efuse esp-tls esp32 esp_adc_cal esp_common esp_eth esp_event esp_gdbstub esp_http_client esp_http_server esp_https_ota esp_https_server esp_local_ctrl esp_ringbuf esp_rom esp_websocket_client esp_wifi espcoredump esptool_py expat fatfs freemodbus freertos heap idf_test jsmn json libsodium log lwip main mbedtls mdns mqtt newlib nghttp nvs_flash openssl partition_table protobuf-c protocomm pthread sdmmc smartconfig_ack soc spi_flash spiffs tcp_transport tcpip_adapter ulp unity vfs wear_levelling wifi_provisioning wpa_supplicant xtensa
-- Component paths: C:/esp32deps/auto/esp-idf/components/app_trace C:/esp32deps/auto/esp-idf/components/app_update C:/esp32deps/auto/esp-idf/components/asio C:/esp32deps/auto/esp-idf/components/bootloader C:/esp32deps/auto/esp-idf/components/bootloader_support C:/esp32deps/auto/esp-idf/components/bt C:/esp32deps/auto/esp-idf/components/coap C:/esp32deps/auto/esp-idf/components/console C:/esp32deps/auto/esp-idf/components/cxx C:/esp32deps/auto/esp-idf/components/driver C:/esp32deps/auto/esp-idf/components/efuse C:/esp32deps/auto/esp-idf/components/esp-tls C:/esp32deps/auto/esp-idf/components/esp32 C:/esp32deps/auto/esp-idf/components/esp_adc_cal C:/esp32deps/auto/esp-idf/components/esp_common C:/esp32deps/auto/esp-idf/components/esp_eth C:/esp32deps/auto/esp-idf/components/esp_event C:/esp32deps/auto/esp-idf/components/esp_gdbstub C:/esp32deps/auto/esp-idf/components/esp_http_client C:/esp32deps/auto/esp-idf/components/esp_http_server C:/esp32deps/auto/esp-idf/components/esp_https_ota C:/esp32deps/auto/esp-idf/components/esp_https_server C:/esp32deps/auto/esp-idf/components/esp_local_ctrl C:/esp32deps/auto/esp-idf/components/esp_ringbuf C:/esp32deps/auto/esp-idf/components/esp_rom C:/esp32deps/auto/esp-idf/components/esp_websocket_client C:/esp32deps/auto/esp-idf/components/esp_wifi C:/esp32deps/auto/esp-idf/components/espcoredump C:/esp32deps/auto/esp-idf/components/esptool_py C:/esp32deps/auto/esp-idf/components/expat C:/esp32deps/auto/esp-idf/components/fatfs C:/esp32deps/auto/esp-idf/components/freemodbus C:/esp32deps/auto/esp-idf/components/freertos C:/esp32deps/auto/esp-idf/components/heap C:/esp32deps/auto/esp-idf/components/idf_test C:/esp32deps/auto/esp-idf/components/jsmn C:/esp32deps/auto/esp-idf/components/json C:/esp32deps/auto/esp-idf/components/libsodium C:/esp32deps/auto/esp-idf/components/log C:/esp32deps/auto/esp-idf/components/lwip C:/Users/_/Desktop/projectRGBDisplay/master/Software/main C:/esp32deps/auto/esp-idf/components/mbedtls C:/esp32deps/auto/esp-idf/components/mdns C:/esp32deps/auto/esp-idf/components/mqtt C:/esp32deps/auto/esp-idf/components/newlib C:/esp32deps/auto/esp-idf/components/nghttp C:/esp32deps/auto/esp-idf/components/nvs_flash C:/esp32deps/auto/esp-idf/components/openssl C:/esp32deps/auto/esp-idf/components/partition_table C:/esp32deps/auto/esp-idf/components/protobuf-c C:/esp32deps/auto/esp-idf/components/protocomm C:/esp32deps/auto/esp-idf/components/pthread C:/esp32deps/auto/esp-idf/components/sdmmc C:/esp32deps/auto/esp-idf/components/smartconfig_ack C:/esp32deps/auto/esp-idf/components/soc C:/esp32deps/auto/esp-idf/components/spi_flash C:/esp32deps/auto/esp-idf/components/spiffs C:/esp32deps/auto/esp-idf/components/tcp_transport C:/esp32deps/auto/esp-idf/components/tcpip_adapter C:/esp32deps/auto/esp-idf/components/ulp C:/esp32deps/auto/esp-idf/components/unity C:/esp32deps/auto/esp-idf/components/vfs C:/esp32deps/auto/esp-idf/components/wear_levelling C:/esp32deps/auto/esp-idf/components/wifi_provisioning C:/esp32deps/auto/esp-idf/components/wpa_supplicant C:/esp32deps/auto/esp-idf/components/xtensa
-- Configuring incomplete, errors occurred!
See also "C:/Users/_/Desktop/projectRGBDisplay/master/Software/cmake-build-debug/CMakeFiles/CMakeOutput.log".
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