Conda in Windows under MSYS2 and Zsh 的問題解決

KpHang發表於2023-03-28
Windows

Conda in Windows under MSYS2 and Zsh 的問題解決

在Window11上使用git bash 安裝zsh，並配置p10k主題，主要問題就是prompt中無法顯示conda env；conda activate/deactivate 命令不能正常使用；

總結其實就是一個核心問題，\r,\n,\r\n的區別；

Errors likes these：

(eval):11: parse error near ^M

\r被解析成了^M，導致路徑錯誤，如下：/c/Users/joaom/Miniconda3/Scripts/conda.exe^M

~
❯ conda activate base

~ [base]
❯ conda deactivate

__conda_activate:13: no such file or directory: /c/Users/joaom/Miniconda3/Scripts/conda.exe^M

或者，conda init 無效：

CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'.
If using 'conda activate' from a batch script, change your
invocation to 'CALL conda.bat activate'.

To initialize your shell, run

    $ conda init <SHELL_NAME>

Currently supported shells are:
  - bash
  - cmd.exe
  - fish
  - tcsh
  - xonsh
  - zsh
  - powershell

See 'conda init --help' for more information and options.

IMPORTANT: You may need to close and restart your shell after running 'conda init'.

或者一些其他的報錯，是關於window 和 unix編碼的問題。

參考；

Conda in Windows under MSYS2 and Zsh line ending problems · Issue #9922 · conda/conda (github.com)

Conda activate UnicodeEncodeError if non-ascii characters present in bash prompt · Issue #7876 · conda/conda (github.com)

嘗試過程：

  1. # >>> conda initialize >>>
# !! Contents within this block are managed by 'conda init' !!
#if [ -f '/d/Anaconda3/Scripts/conda.exe' ]; then
#    eval "$('/d/Anaconda3/Scripts/conda.exe' 'shell.zsh' 'hook')"
#fi

# temp solution
. /d/Anaconda3/etc/profile.d/conda.sh
# <<< conda initialize <<<

  2. 使用大佬分享的conda.sh檔案；

    export CONDA_EXE=$(echo '/cygdrive/c/Users/karp/anaconda3/Scripts/conda.exe' | tr -d '\r')
export _CE_M=''
export _CE_CONDA=''
export CONDA_PYTHON_EXE='C:\Users\karp\anaconda3\python.exe'

# Copyright (C) 2012 Anaconda, Inc
# SPDX-License-Identifier: BSD-3-Clause

__add_sys_prefix_to_path() {
    # In dev-mode CONDA_EXE is python.exe and on Windows
    # it is in a different relative location to condabin.
    if [ -n "${_CE_CONDA}" ] && [ -n "${WINDIR+x}" ]; then
        SYSP=$(\dirname "${CONDA_EXE}")
        SYSP=$(echo ${SYSP} | tr -d '\r')
    else
        SYSP=$(\dirname "${CONDA_EXE}")
        SYSP=$(\dirname "${SYSP}")
        SYSP=$(echo ${SYSP} | tr -d '\r')
    fi

    if [ -n "${WINDIR+x}" ]; then
        PATH="${SYSP}/bin:${PATH}"
        PATH="${SYSP}/Scripts:${PATH}"
        PATH="${SYSP}/Library/bin:${PATH}"
        PATH="${SYSP}/Library/usr/bin:${PATH}"
        PATH="${SYSP}/Library/mingw-w64/bin:${PATH}"
        PATH="${SYSP}:${PATH}"
        PATH=$(echo ${PATH} | tr -d '\r')
    else
        PATH="${SYSP}/bin:${PATH}"
        PATH=$(echo ${PATH} | tr -d '\r')
    fi
    \export PATH
}

__conda_exe() (
    __add_sys_prefix_to_path
    $(echo "$CONDA_EXE" | tr -d '\r') $_CE_M $_CE_CONDA $(echo "$@" | tr -d '\r')
)

__conda_hashr() {
    if [ -n "${ZSH_VERSION:+x}" ]; then
        \rehash
    elif [ -n "${POSH_VERSION:+x}" ]; then
        :  # pass
    else
        \hash -r
    fi
}

__conda_activate() {
    if [ -n "${CONDA_PS1_BACKUP:+x}" ]; then
        # Handle transition from shell activated with conda <= 4.3 to a subsequent activation
        # after conda updated to >= 4.4. See issue #6173.
        PS1="$CONDA_PS1_BACKUP"
        PS1=$(echo ${PS1} | tr -d '\r')
        \unset CONDA_PS1_BACKUP
    fi
    \local ask_conda
    ask_conda="$(PS1="${PS1:-}" __conda_exe shell.posix "$@")" || \return
    ask_conda=$(echo ${ask_conda} | tr -d '\r')
    \eval "$ask_conda"
    __conda_hashr
}

__conda_reactivate() {
    \local ask_conda
    ask_conda="$(PS1="${PS1:-}" __conda_exe shell.posix reactivate)" || \return
    ask_conda=$(echo ${ask_conda} | tr -d '\r')
    \eval "$ask_conda"
    __conda_hashr
}

conda() {
    \local cmd="${1-__missing__}"
    case "$cmd" in
        activate|deactivate)
            __conda_activate $(echo "$@" | tr -d '\r')
            ;;
        install|update|upgrade|remove|uninstall)
            __conda_exe $(echo "$@" | tr -d '\r') || \return
            __conda_reactivate
            ;;
        *)
            __conda_exe $(echo "$@" | tr -d '\r')
            ;;
    esac
}

if [ -z "${CONDA_SHLVL+x}" ]; then
    \export CONDA_SHLVL=0
    # In dev-mode CONDA_EXE is python.exe and on Windows
    # it is in a different relative location to condabin.
    if [ -n "${_CE_CONDA:+x}" ] && [ -n "${WINDIR+x}" ]; then
        PATH="$(\dirname "$CONDA_EXE")/condabin${PATH:+":${PATH}"}"
    else
        PATH="$(\dirname "$(\dirname "$CONDA_EXE")")/condabin${PATH:+":${PATH}"}"
    fi
    \export PATH

    # We're not allowing PS1 to be unbound. It must at least be set.
    # However, we're not exporting it, which can cause problems when starting a second shell
    # via a first shell (i.e. starting zsh from bash).
    if [ -z "${PS1+x}" ]; then
        PS1=
    fi
fi

目前仍然存在的問題是：

雖然conda activate/deactivate 命令不報錯了，但是非base的虛擬環境並未完全啟用；

如下，base env 正常，但其他的env 就不行；（注意*，表示當前啟用環境）

❯ conda activate base
❯ conda env list
# conda environments:
#
base                  *  D:\Anaconda3
d2l                      D:\Anaconda3\envs\d2l

非base env 的情況：（並未啟用；）

❯ conda activate d2l
❯ conda env list
# conda environments:
#
base                     D:\Anaconda3
d2l                      D:\Anaconda3\envs\d2l

後來又找到：https://github.com/conda/conda/issues/9922#issuecomment-1361695031

完美解決。

❯ conda activate d2l
❯ conda env list
# conda environments:
#
base                     D:\Anaconda3
d2l                   *  D:\Anaconda3\envs\d2l

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