113 lines
3.1 KiB
Bash
Executable File
113 lines
3.1 KiB
Bash
Executable File
#!/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 "$compext" = ".xz"; then
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echo "ERROR: cannot mix XZ and ZSTD compression"
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exit 1
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fi
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# shellcheck disable=SC2209
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compress="zstd --compress --quiet --stdout"
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compext=".zst"
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shift
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;;
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*)
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if test "x$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="$1"
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shift
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;;
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esac
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done
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# shellcheck disable=SC2162 # file/folder name can include escaped symbols
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grep '^File:' WHENCE | sed -e 's/^File: *//g;s/"//g' | while read f; do
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test -f "$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" && grep -q "^Raw: $f\$" WHENCE; then
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$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$compext"
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fi
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done
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# shellcheck disable=SC2162 # file/folder name can include escaped symbols
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grep -E '^Link:' WHENCE | sed -e 's/^Link: *//g;s/-> //g' | while read f d; do
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if test -L "$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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