Converta alias bash em scripts bash
Eu decidi fazer isso em vez da abordagem abaixo e colocar os scripts em ~/bin/ , que está no meu PATH .
Isso torna possível usá-los a partir de qualquer shell e evita possíveis problemas com as citações.
ignora aliases recursivos como alias ls='ls -la' ,
porque teríamos uma recursão infinita ao usá-las como um script!
Como solução alternativa, use o caminho absoluto no seu alias,
como alias ls='/bin/ls -la' .
Uso
# converts all bash aliases to script files
convert_bash_aliases_to_scripts
# removes all scripts previously converted by this script
convert_bash_aliases_to_scripts clean
Script
#!/bin/bash
# Convert bash aliases to bash scripts.
#
# Copyright 2018 <[email protected]>, licensed under the GPL-3.0+
#
# Usage:
# convert_bash_aliases_to_scripts # converts all bash aliases to script files
# convert_bash_aliases_to_scripts clean # removes all scripts previously converted by this script
COLOR_RED=$'\e[0;31m'
COLOR_ORANGE=$'\e[0;33m'
COLOR_BLUE=$'\e[0;34m'
COLOR_BLUE_LIGHT=$'\e[1;34m'
COLOR_GREEN=$'\e[0;32m'
COLOR_BROWN=$'\e[0;33m'
COLOR_YELLOW=$'\e[1;33m'
COLOR_WHITE=$'\e[1;37m'
COLOR_CYAN=$'\e[0;36m'
COLOR_PURPLE=$'\e[0;35m'
COLOR_GRAY=$'\e[1;30m'
COLOR_GRAY_LIGHT=$'\e[0;37m'
COLOR_NONE=$'\e[m' # No Color
OUTPUT_DIR=~/bin/converted/aliases
LINKS_DIR=~/bin
README_FILE_NAME="README.md"
README_FILE="$OUTPUT_DIR/$README_FILE_NAME"
if [ "$1" = "clean" ]
then
for script_file in $(find "$LINKS_DIR" -maxdepth 1 -type l)
do
conv_script_file="$OUTPUT_DIR/$(basename $script_file)"
if [ -e $conv_script_file ] && [ "$(readlink --canonicalize $script_file)" = "$(realpath $conv_script_file)" ]
then
script_name=$(basename $script_file)
echo "removing converted bash alias-script: $script_name"
rm $conv_script_file \
&& rm $script_file
fi
done
rm $README_FILE 2> /dev/null
rmdir $OUTPUT_DIR 2> /dev/null
exit 0
fi
SOURCE_FILES="${HOME}/.bashrc ${HOME}/.bash_aliases"
mkdir -p $OUTPUT_DIR
echo -e "# Bash alias conversion scripts\n\nsee $0\n\nWARNING: Do NOT manually edit files in this directory. instead, copy them to $LINKS_DIR (replacing the symbolic link that already exists there), and edit that new file.\nIf you edit the files in this dir, it will be replaced on the next (re)conversion from aliases." \
> $README_FILE
AUTO_IMPORT_WARNING="# WARNING Do NOT edit this file by hand, as it was auto-generated from a bash alias, and may be overwritten in the future. please read ${README_FILE}"
function _is_link_to {
local file_link=$1
local file_target=$2
test -e $file_target \
&& test "$(readlink --canonicalize $file_link)" = "$(realpath $file_target)"
return $?
}
function _is_recursive_alias () {
local alias_name="$1"
local alias_command="$2"
local alias_command_first_word=$(echo "$alias_command" | sed -e 's/^[ \t]*['\''\"]\?//' -e 's/[ \t].*//')
test "$alias_command_first_word" = "$alias_name"
return $?
}
for source_file in $SOURCE_FILES
do
IFS=$'\n'
for a in $(cat $source_file | grep "^alias")
do
a_name="$(echo "$a" | sed -e 's/alias \([^=]*\)=.*//')"
a_command="$(echo "$a" | sed -e 's/alias \([^=]*\)=//' -e 's/[ \t]*#.*$//')"
if echo "${a_command:0:1}" | grep -q -e "[\'\"]"
then
# unquote
a_command_start=1
let a_command_end="${#a_command} - 2"
else
# leave as is
a_command_start=0
let a_command_end="${#a_command}"
fi
script_file="$LINKS_DIR/$a_name"
conv_script_file="$OUTPUT_DIR/$a_name"
# Check whether the script already exists.
# If so, we skip importing it, unless it is just a link to a previously imported script.
log_action="ignored"
log_action_color="${COLOR_NONE}"
log_content=""
if [ -e $script_file ] && ! $(_is_link_to $script_file $conv_script_file)
then
log_action="skipped (exists)"
log_action_color="${COLOR_ORANGE}"
elif _is_recursive_alias "$a_name" "$a_command"
then
log_action="skipped (recursive)"
log_action_color="${COLOR_RED}"
else
if [ -e $script_file ]
then
log_action="reimporting"
log_action_color="${COLOR_BLUE}"
else
log_action="importing"
log_action_color="${COLOR_GREN}"
fi
# write the script file to a temporary location
conv_script_file_tmp="${conv_script_file}_BAK"
echo "#!/bin/bash" > $conv_script_file_tmp
echo -e "$AUTO_IMPORT_WARNING" >> $conv_script_file_tmp
echo -e "#\n# Imported bash alias '$a_name' from file '$source_file'" >> $conv_script_file_tmp
cat >> "${conv_script_file_tmp}" <<EOF
${a_command:${a_command_start}:${a_command_end}} \${@}
EOF
if diff -N ${conv_script_file_tmp} ${conv_script_file} > /dev/null
then
log_content="no change"
log_content_color="${COLOR_NONE}"
else
log_content="changed"
log_content_color="${COLOR_GREEN}"
fi
log_content=$(printf "%s %10s -> %s${COLOR_NONE}" "${log_content_color}" "${log_content}" "$a_command")
mv "${conv_script_file_tmp}" "${conv_script_file}"
# make the script executable
chmod +x $conv_script_file
# remove the link if it already exists (in case of reimport)
rm $script_file 2> /dev/null
# .. and re-create it as local symbolic link
# to the function in the imports dir
ln --symbolic --relative $conv_script_file $script_file
fi
printf "%s%20s: %-25s${COLOR_NONE}%s\n" "${log_action_color}" "${log_action}" "$a_name" "${log_content}"
done
done
Deprecado: Criando wrappers de peixe que executam o código bash
Abaixo está um script que cria fish wrappers de script para os aliases bash locais: Para cada alias bash, ele pega o conteúdo e cria um alias / script fish que executa o código no sub-shell bash. Não é ideal, mas é suficiente para a maioria dos meus aliases.
AVISO Pode acontecer que a função importada aja de forma diferente e depois no bash. Você pode perder dados ou acidentalmente DDOS seus colegas de trabalho quando usá-los.
Uso (descontinuado)
# imports (or reimports) all bash aliases into fish functions, permanently
import_bash_aliases
# removes all fish functions previously imported by this script
import_bash_aliases clean
Script (descontinuado)
salve isso em ~/.config/fish/functions/import_bash_aliases.fish :
#!/usr/bin/fish
# Fish function to import bash aliases
#
# Copyright 2018 <[email protected]>, licensed under the GPL-3.0+
#
# This script is based on a script from Malte Biermann,
# see: https://glot.io/snippets/efh1c4aec0
#
# WARNING: There is no guarantee that the imported aliases work the same way
# as they do in bash, so be cautious!
#
# Usage:
# import_bash_aliases # imports (or reimports) all bash aliases into fish functions, permanently
# import_bash_aliases clean # removes all fish functions previously imported by this script from bash aliases
function import_bash_aliases --description 'Converts bash aliases to .fish functions.\nThis might be called repeatedly, and will not override functions that are already defined in fish, except they are merely an older import from this script.'
set -l FISH_FUNCTIONS_DIR ~/.config/fish/functions
set -l BASH_IMPORTS_DIR_NAME bash-imports
set -l BASH_IMPORTS_DIR $FISH_FUNCTIONS_DIR/$BASH_IMPORTS_DIR_NAME
set -l README_FILE $BASH_IMPORTS_DIR/README.md
if test "$argv[1]" = "clean"
for fun_file in (find $FISH_FUNCTIONS_DIR -maxdepth 1 -name '*.fish')
set -l imp_fun_file $BASH_IMPORTS_DIR/(basename $fun_file)
if test -e $imp_fun_file ; and test (readlink --canonicalize $fun_file) = (realpath $imp_fun_file)
set -l fun_name (basename $fun_file '.fish')
echo "removing imported bash alias/function $fun_name"
rm $imp_fun_file
and rm $fun_file
and functions --erase $fun_name
end
end
rm $README_FILE ^ /dev/null
rmdir $BASH_IMPORTS_DIR ^ /dev/null
return 0
end
set -l SOURCE_FILES ~/.bashrc ~/.bash_aliases
mkdir -p $BASH_IMPORTS_DIR
echo -e "# Bash alias imports\n\nsee '$argv[0]'\n\nWARNING: Do NOT manually edit files in this directory. instead, copy them to $FISH_FUNCTIONS_DIR (replacing the symbolic link that already exists there), and edit that new file.\nIf you edit the files in this dir, it will be replaced on the next (re)import from bash aliases." \
> $README_FILE
set -l UNUSED_STUB_MSG "The bash alias corresponding to this function was NOT imported, because a corresponding function already exists at %s\n"
set -l AUTO_IMPORT_WARNING "# WARNING Do NOT edit this file by hand, as it was auto-generated from a bash alias, and may be overwritten in the future. please read {$README_FILE}"
function _fish_func_exists
set -l fun_name $argv[1]
# This also detects in-memory functions
functions --query $fun_name
# This also detects script files in the functions dir
# that do not contain a function wiht the same name
or test -e "$FISH_FUNCTIONS_DIR/$fun_name.fish"
return $status
end
function _is_link_to
set -l file_link $argv[1]
set -l file_target $argv[2]
test -e $file_target
and test (readlink --canonicalize $file_link) = (realpath $file_target)
return $status
end
for source_file in $SOURCE_FILES
for a in (cat $source_file | grep "^alias")
set -l a_name (echo $a | sed -e 's/alias \([^=]*\)=.*//')
set -l a_command (echo $a | sed -e 's/alias \([^=]*\)=//' -e 's/[ \t]*#[^\'\"]\+$//')
set -l fun_file "$FISH_FUNCTIONS_DIR/$a_name.fish"
set -l imp_fun_file "$BASH_IMPORTS_DIR/$a_name.fish"
# Check whether the function already exists.
# If so, we skip importing it, unless it is just a link to a previously imported function.
if _fish_func_exists $a_name; and not _is_link_to $fun_file $imp_fun_file
set_color red
printf "%20s: %-25s\n" "skipping (exists)" $a_name
set_color normal
#printf $UNUSED_STUB_MSG $fun_file > $imp_fun_file
else
set_color green
printf "%20s: %-25s -> %s\n" "(re-)importing" $a_name $a_command
set_color normal
# remove the link, in case of re-importing
rm $fun_file ^ /dev/null
# write the function file
echo "#!/usr/bin/fish" > $imp_fun_file
echo "\
$AUTO_IMPORT_WARNING
function $a_name -d 'bash alias "$a_name" import'
bash -c $a_command' '\$argv''
end
" \
>> $imp_fun_file
# make the script executable
chmod +x $imp_fun_file
# .. and re-create it as local symbolic link
# to the function in the imports dir
ln --symbolic --relative $imp_fun_file $fun_file
end
end
end
# (re-)load all the functions we just defined
exec fish
end