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|
alias x=extract
extract() {
setopt localoptions noautopushd
if (( $# == 0 )); then
cat >&2 <<'EOF'
Usage: extract [-option] [file ...]
Options:
-r, --remove Remove archive after unpacking.
EOF
fi
local remove_archive=1
if [[ "$1" == "-r" ]] || [[ "$1" == "--remove" ]]; then
remove_archive=0
shift
fi
local pwd="$PWD"
while (( $# > 0 )); do
if [[ ! -f "$1" ]]; then
echo "extract: '$1' is not a valid file" >&2
shift
continue
fi
local success=0
local extract_dir="${1:t:r}"
local file="$1" full_path="${1:A}"
# Create an extraction directory based on the file name
command mkdir -p "$extract_dir"
builtin cd -q "$extract_dir"
case "${file:l}" in
(*.tar.gz|*.tgz)
(( $+commands[pigz] )) && { tar -I pigz -xvf "$full_path" } || tar zxvf "$full_path" ;;
(*.tar.bz2|*.tbz|*.tbz2)
(( $+commands[pbzip2] )) && { tar -I pbzip2 -xvf "$full_path" } || tar xvjf "$full_path" ;;
(*.tar.xz|*.txz)
(( $+commands[pixz] )) && { tar -I pixz -xvf "$full_path" } || {
tar --xz --help &> /dev/null \
&& tar --xz -xvf "$full_path" \
|| xzcat "$full_path" | tar xvf - } ;;
(*.tar.zma|*.tlz)
tar --lzma --help &> /dev/null \
&& tar --lzma -xvf "$full_path" \
|| lzcat "$full_path" | tar xvf - ;;
(*.tar.zst|*.tzst)
tar --zstd --help &> /dev/null \
&& tar --zstd -xvf "$full_path" \
|| zstdcat "$full_path" | tar xvf - ;;
(*.tar) tar xvf "$full_path" ;;
(*.tar.lz) (( $+commands[lzip] )) && tar xvf "$full_path" ;;
(*.tar.lz4) lz4 -c -d "$full_path" | tar xvf - ;;
(*.tar.lrz) (( $+commands[lrzuntar] )) && lrzuntar "$full_path" ;;
(*.gz) (( $+commands[pigz] )) && pigz -dk "$full_path" || gunzip -k "$full_path" ;;
(*.bz2) bunzip2 "$full_path" ;;
(*.xz) unxz "$full_path" ;;
(*.lrz) (( $+commands[lrunzip] )) && lrunzip "$full_path" ;;
(*.lz4) lz4 -d "$full_path" ;;
(*.lzma) unlzma "$full_path" ;;
(*.z) uncompress "$full_path" ;;
(*.zip|*.war|*.jar|*.ear|*.sublime-package|*.ipa|*.ipsw|*.xpi|*.apk|*.aar|*.whl) unzip "$full_path" ;;
(*.rar) unrar x -ad "$full_path" ;;
(*.rpm)
rpm2cpio "$full_path" | cpio --quiet -id ;;
(*.7z) 7za x "$full_path" ;;
(*.deb)
command mkdir -p "control" "data"
ar vx "$full_path" > /dev/null
builtin cd -q control; extract ../control.tar.*
builtin cd -q ../data; extract ../data.tar.*
builtin cd -q ..; command rm *.tar.* debian-binary ;;
(*.zst) unzstd "$full_path" ;;
(*.cab) cabextract "$full_path" ;;
(*.cpio|*.obscpio) cpio -idmvF "$full_path" ;;
(*.zpaq) zpaq x "$full_path" ;;
(*)
echo "extract: '$file' cannot be extracted" >&2
success=1 ;;
esac
(( success = success > 0 ? success : $? ))
(( success == 0 && remove_archive == 0 )) && command rm "$full_path"
shift
# Go back to original working directory
builtin cd -q "$pwd"
# If content of extract dir is a single directory, move its contents up
# Glob flags:
# - D: include files starting with .
# - N: no error if directory is empty
# - Y2: at most give 2 files
local -a content
content=("${extract_dir}"/*(DNY2))
if [[ ${#content} -eq 1 && -d "${content[1]}" ]]; then
# The extracted folder (${content[1]}) may have the same name as $extract_dir
# If so, we need to rename it to avoid conflicts in a 3-step process
#
# 1. Move and rename the extracted folder to a temporary random name
# 2. Delete the empty folder
# 3. Rename the extracted folder to the original name
if [[ "${content[1]:t}" == "$extract_dir" ]]; then
# =(:) gives /tmp/zsh<random>, with :t it gives zsh<random>
local tmp_dir==(:); tmp_dir="${tmp_dir:t}"
command mv -f "${content[1]}" "$tmp_dir" \
&& command rmdir "$extract_dir" \
&& command mv -f "$tmp_dir" "$extract_dir"
else
command mv -f "${content[1]}" . \
&& command rmdir "$extract_dir"
fi
elif [[ ${#content} -eq 0 ]]; then
command rmdir "$extract_dir"
fi
done
}
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