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qt 隐藏控件 setv
一年多以来， setV已隐藏在我的bash_scripts项目中，但现在该公开了。 setV是Bash函数，我用作virtualenvwrapper的替代方法。 它提供了一些基本功能，使您可以执行以下操作：
- 默认使用Python 3
- 创建一个新的虚拟环境
- 使用带有-p （或–python ）的自定义Python路径创建一个新的虚拟环境。
- 删除现有的虚拟环境
- 列出所有现有的虚拟环境
- 使用制表符补全（以防您忘记虚拟环境名称）
安装
要安装setV，请下载脚本：
curl https: // gitlab.com / psachin / setV / raw / master / install.sh 查看脚本，然后运行它：
sh . / install.sh 安装setV时，安装脚本会要求您提供〜/ .bashrc或〜/ .bash_profile的源代码。 一定要这样做。
用法
基本命令是setv 。
创建一个虚拟环境：
setv --new rango # setv -n rango
# Or using a custom Python binary path
setv --new --python /opt/python/python3 rango # setv -n -p /opt/python/python3 rango
激活现有环境：
setv VIRTUAL_ENVIRONMENT_NAME
# For example
setv rango
列出所有虚拟环境：
setv --list
# or
setv [TAB] [TAB]
删除虚拟环境：
setv --delete rango 切换到另一个虚拟环境：
# Assuming you are in 'rango', switch to 'tango' using
setv tango
制表符完成
如果您不完全记得虚拟环境的名称，则Bash式Tab补全适用于虚拟环境名称。
参与其中
setV是GNU GPLv3下的开源程序，欢迎您提供帮助。 要了解更多信息，请在其GitLab存储库中访问setV的README的Contribute部分。
setV脚本
#!/usr/bin/env bash
# setV - A Lightweight Python virtual environment manager.
# Author: Sachin (psachin) <>
# Author's URL: https://psachin.gitlab.io/about
#
# License: GNU GPL v3, See LICENSE file
#
# Configure(Optional):
# Set `SETV_VIRTUAL_DIR_PATH` value to your virtual environments
# directory-path. By default it is set to '~/virtualenvs/'
#
# Usage:
# Manual install: Added below line to your .bashrc or any local rc script():
# ---
# source /path/to/virtual.sh
# ---
#
# Now you can 'activate' the virtual environment by typing
# $ setv <YOUR VIRTUAL ENVIRONMENT NAME>
#
# For example:
# $ setv rango
#
# or type:
# setv [TAB] [TAB] (to list all virtual envs)
#
# To list all your virtual environments:
# $ setv --list
#
# To create new virtual environment:
# $ setv --new new_virtualenv_name
#
# To delete existing virtual environment:
# $ setv --delete existing_virtualenv_name
#
# To deactivate, type:
# $ deactivate
# Path to virtual environment directory
SETV_VIRTUAL_DIR_PATH="$HOME/virtualenvs/"
# Default python version to use. This decides whether to use `virtualenv` or `python3 -m venv`
SETV_PYTHON_VERSION=3 # Defaults to Python3
SETV_PY_PATH=$(which python${SETV_PYTHON_VERSION})
function _setvcomplete_()
{
# Bash-autocompletion.
# This ensures Tab-auto-completions work for virtual environment names.
local cmd="${1*/}" # to handle command(s).
# Not necessary as such. 'setv' is the only command
local word=${COMP_WORDS[COMP_CWORD]} # Words thats being completed
local xpat='${word}' # Filter pattern. Include
# only words in variable '$names'
local names=$(ls -l "${SETV_VIRTUAL_DIR_PATH}" | egrep '^d' | awk -F " " '{print $NF}') # Virtual environment names
COMPREPLY=($(compgen -W "$names" -X "$xpat" -- "$word")) # compgen generates the results
}
function _setv_help_() {
# Echo help/usage message
echo "Usage: setv [OPTIONS] [NAME]"
echo Positional argument:
echo -e "NAME Activate virtual env."
echo Optional arguments:
echo -e "-l, --list List all Virtual Envs."
echo -e "-n, --new NAME Create a new Python Virtual Env."
echo -e "-d, --delete NAME Delete existing Python Virtual Env."
echo -e "-p, --python PATH Python binary path."
}
function _setv_custom_python_path()
{
if [ -f "${1}" ];
then
if [ "`expr $1 : '.*python\([2,3]\)'`" = "3" ];
then
SETV_PYTHON_VERSION=3
else
SETV_PYTHON_VERSION=2
fi
SETV_PY_PATH=${1}
_setv_create $2
else
echo "Error: Path ${1} does not exist!"
fi
}
function _setv_create()
{
# Creates new virtual environment if ran with -n|--new flag
if [ -z ${1} ];
then
echo "You need to pass virtual environment name"
_setv_help_
else
echo "Creating new virtual environment with the name: $1"
if [ ${SETV_PYTHON_VERSION} -eq 3 ];
then
${SETV_PY_PATH} -m venv ${SETV_VIRTUAL_DIR_PATH}${1}
else
virtualenv -p ${SETV_PY_PATH} ${SETV_VIRTUAL_DIR_PATH}${1}
fi
echo "You can now activate the Python virtual environment by typing: setv ${1}"
fi
}
function _setv_delete()
{
# Deletes virtual environment if ran with -d|--delete flag
# TODO: Refactor
if [ -z ${1} ];
then
echo "You need to pass virtual environment name"
_setv_help_
else
if [ -d ${SETV_VIRTUAL_DIR_PATH}${1} ];
then
read -p "Really delete this virtual environment(Y/N)? " yes_no
case $yes_no in
Y|y) rm -rvf ${SETV_VIRTUAL_DIR_PATH}${1};;
N|n) echo "Leaving the virtual environment as it is.";;
*) echo "You need to enter either Y/y or N/n"
esac
else
echo "Error: No virtual environment found by the name: ${1}"
fi
fi
}
function _setv_list()
{
# Lists all virtual environments if ran with -l|--list flag
echo -e "List of virtual environments you have under ${SETV_VIRTUAL_DIR_PATH}:\n"
for virt in $(ls -l "${SETV_VIRTUAL_DIR_PATH}" | egrep '^d' | awk -F " " '{print $NF}')
do
echo ${virt}
done
}
function setv() {
# Main function
if [ $# -eq 0 ];
then
_setv_help_
elif [ $# -le 3 ];
then
case "${1}" in
-n|--new) _setv_create ${2};;
-d|--delete) _setv_delete ${2};;
-l|--list) _setv_list;;
*) if [ -d ${SETV_VIRTUAL_DIR_PATH}${1} ];
then
# Activate the virtual environment
source ${SETV_VIRTUAL_DIR_PATH}${1}/bin/activate
else
# Else throw an error message
echo "Sorry, you don't have any virtual environment with the name: ${1}"
_setv_help_
fi
;;
esac
elif [ $# -le 5 ];
then
case "${2}" in
-p|--python) _setv_custom_python_path ${3} ${4};;
*) _setv_help_;;
esac
fi
}
# Calls bash-complete. The compgen command accepts most of the same
# options that complete does but it generates results rather than just
# storing the rules for future use.
complete -F _setvcomplete_ setv
翻译自: https://opensource.com/article/20/1/setv-bash-function
qt 隐藏控件 setv
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