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138 lines
3.8 KiB
138 lines
3.8 KiB
#!/bin/sh |
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# SPDX-License-Identifier: GPL-2.0 |
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# |
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# Copy firmware files based on WHENCE list |
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# |
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verbose=: |
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prune=no |
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# shellcheck disable=SC2209 |
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compress=cat |
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compext= |
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while test $# -gt 0; do |
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case $1 in |
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-v | --verbose) |
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# shellcheck disable=SC2209 |
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verbose=echo |
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shift |
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;; |
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-P | --prune) |
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prune=yes |
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shift |
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;; |
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--xz) |
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if test "$compext" = ".zst"; then |
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echo "ERROR: cannot mix XZ and ZSTD compression" |
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exit 1 |
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fi |
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compress="xz --compress --quiet --stdout --check=crc32" |
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compext=".xz" |
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shift |
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;; |
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--zstd) |
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if test "$compext" = ".xz"; then |
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echo "ERROR: cannot mix XZ and ZSTD compression" |
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exit 1 |
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fi |
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# shellcheck disable=SC2209 |
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compress="zstd --compress --quiet --stdout" |
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compext=".zst" |
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shift |
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;; |
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-*) |
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if test "$compress" = "cat"; then |
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echo "ERROR: unknown command-line option: $1" |
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exit 1 |
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fi |
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compress="$compress $1" |
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shift |
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;; |
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*) |
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if test "x$destdir" != "x"; then |
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echo "ERROR: unknown command-line options: $*" |
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exit 1 |
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fi |
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destdir="$1" |
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shift |
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;; |
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esac |
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done |
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if [ -z "$destdir" ]; then |
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echo "ERROR: destination directory was not specified" |
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exit 1 |
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fi |
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if ! command -v rdfind >/dev/null; then |
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echo "ERROR: rdfind is not installed" |
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exit 1 |
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fi |
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# shellcheck disable=SC2162 # file/folder name can include escaped symbols |
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grep -E '^(RawFile|File):' WHENCE | sed -E -e 's/^(RawFile|File): */\1 /;s/"//g' | while read k f; do |
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test -f "$f" || continue |
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install -d "$destdir/$(dirname "$f")" |
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$verbose "copying/compressing file $f$compext" |
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if test "$compress" != "cat" && test "$k" = "RawFile"; then |
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$verbose "compression will be skipped for file $f" |
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cat "$f" > "$destdir/$f" |
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else |
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$compress "$f" > "$destdir/$f$compext" |
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fi |
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done |
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$verbose "Finding duplicate files" |
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rdfind -makesymlinks true -makeresultsfile false "$destdir" >/dev/null |
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find "$destdir" -type l | while read -r l; do |
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target="$(realpath "$l")" |
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$verbose "Correcting path for $l" |
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ln -fs "$(realpath --relative-to="$(dirname "$(realpath -s "$l")")" "$target")" "$l" |
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done |
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# shellcheck disable=SC2162 # file/folder name can include escaped symbols |
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grep -E '^Link:' WHENCE | sed -e 's/^Link: *//g;s/-> //g' | while read f d; do |
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if test -L "$f$compext"; then |
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test -f "$destdir/$f$compext" && continue |
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$verbose "copying link $f$compext" |
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install -d "$destdir/$(dirname "$f")" |
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cp -d "$f$compext" "$destdir/$f$compext" |
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if test "x$d" != "x"; then |
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target="$(readlink "$f")" |
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if test "x$target" != "x$d"; then |
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$verbose "WARNING: inconsistent symlink target: $target != $d" |
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else |
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if test "x$prune" != "xyes"; then |
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$verbose "WARNING: unneeded symlink detected: $f" |
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else |
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$verbose "WARNING: pruning unneeded symlink $f" |
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rm -f "$f$compext" |
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fi |
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fi |
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else |
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$verbose "WARNING: missing target for symlink $f" |
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fi |
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else |
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directory="$destdir/$(dirname "$f")" |
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install -d "$directory" |
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target="$(cd "$directory" && realpath -m -s "$d")" |
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if test -d "$target"; then |
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$verbose "creating link $f -> $d" |
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ln -s "$d" "$destdir/$f" |
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else |
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$verbose "creating link $f$compext -> $d$compext" |
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ln -s "$d$compext" "$destdir/$f$compext" |
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fi |
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fi |
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done |
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exit 0 |
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# vim: et sw=4 sts=4 ts=4
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