bitcoin/contrib/guix/guix-clean
2021-11-30 21:15:40 +02:00

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#!/usr/bin/env bash
export LC_ALL=C
set -e -o pipefail
# Source the common prelude, which:
# 1. Checks if we're at the top directory of the Bitcoin Core repository
# 2. Defines a few common functions and variables
#
# shellcheck source=libexec/prelude.bash
source "$(dirname "${BASH_SOURCE[0]}")/libexec/prelude.bash"
###################
## Sanity Checks ##
###################
################
# Required non-builtin commands should be invokable
################
check_tools cat mkdir make git guix
#############
## Clean ##
#############
# Usage: under_dir MAYBE_PARENT MAYBE_CHILD
#
# If MAYBE_CHILD is a subdirectory of MAYBE_PARENT, print the relative path
# from MAYBE_PARENT to MAYBE_CHILD. Otherwise, return 1 as the error code.
#
# NOTE: This does not perform any symlink-resolving or path canonicalization.
#
under_dir() {
local path_residue
path_residue="${2##"${1}"}"
if [ -z "$path_residue" ] || [ "$path_residue" = "$2" ]; then
return 1
else
echo "$path_residue"
fi
}
# Usage: dir_under_git_root MAYBE_CHILD
#
# If MAYBE_CHILD is under the current git repository and exists, print the
# relative path from the git repository's top-level directory to MAYBE_CHILD,
# otherwise, exit with an error code.
#
dir_under_git_root() {
local rv
rv="$(under_dir "$(git_root)" "$1")"
[ -n "$rv" ] && echo "$rv"
}
shopt -s nullglob
found_precious_dirs_files=( "${version_base_prefix}"*/"${var_base_basename}/precious_dirs" ) # This expands to an array of directories...
shopt -u nullglob
exclude_flags=()
for precious_dirs_file in "${found_precious_dirs_files[@]}"; do
# Make sure the precious directories (e.g. SOURCES_PATH, BASE_CACHE, SDK_PATH)
# are excluded from git-clean
echo "Found precious_dirs file: '${precious_dirs_file}'"
# Exclude the precious_dirs file itself
if dirs_file_exclude_fragment=$(dir_under_git_root "$(dirname "$precious_dirs_file")"); then
exclude_flags+=( --exclude="${dirs_file_exclude_fragment}/precious_dirs" )
fi
# Read each 'name=dir' pair from the precious_dirs file
while IFS='=' read -r name dir; do
# Add an exclusion flag if the precious directory is under the git root.
if under=$(dir_under_git_root "$dir"); then
echo "Avoiding ${name}: ${under}"
exclude_flags+=( --exclude="$under" )
fi
done < "$precious_dirs_file"
done
git clean -xdff "${exclude_flags[@]}"