67 lines
1.7 KiB
Bash
Executable File
67 lines
1.7 KiB
Bash
Executable File
#!/bin/bash
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# Usage:
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# ./rename-tarball original-name.tar.gz new-name.tar.gz
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#
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# The generated new-name.tar.gz will always have a single main
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# directory (named new-name to match the tarball name) in the archive.
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# If the original tarball had multiple files in the main directory of
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# the archive, all those files will be moved to under the new main
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# directory.
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set -euo pipefail
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IFS=$'\n\t'
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positional_args=()
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while [[ "$#" -gt 0 ]]; do
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arg="${1}"
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case "${arg}" in
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-h|--help)
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print_usage
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exit 0
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;;
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*)
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positional_args+=("$1")
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shift
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;;
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esac
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done
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if [[ -z "${positional_args[0]:-}" ]]; then
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echo "error: missing original tarball name"
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exit 1
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fi
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original_path=$(readlink -f "${positional_args[0]:-}")
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original_name=$(basename "$original_path")
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new_name=${positional_args[1]:-}
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if [[ -z ${new_name} ]]; then
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echo "error: missing new tarball name"
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exit 1
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fi
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original_name=${original_name/%.tar.gz}
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new_name=${new_name/.tar.gz}
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echo "Original: ${original_name}.tar.gz"
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echo "New name: ${new_name}.tar.gz"
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mkdir "temp-${new_name}"
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pushd "temp-${new_name}" > /dev/null
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tar xf "${original_path}"
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# `find` always shows the current directory as one of the entries in
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# the output. A total of 2 entries means there is only one main
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# directory in the extracted archive, and we can just move it to the
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# expected location.
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if [[ $(find . -maxdepth 1 | wc -l) == 2 ]]; then
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mv -- ./* ../"${new_name}"
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else
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mkdir -p ../"${new_name}"
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mv -- ./* ../"${new_name}"
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fi
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popd > /dev/null
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tar czf "${new_name}.tar.gz" "${new_name}"
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rm -rf "${new_name}"
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rmdir "temp-${new_name}"
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