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https://salsa.debian.org/kernel-team/initramfs-tools.git
synced 2026-01-26 07:37:54 +00:00
49f3bbadce
Add a test that exercises unmkinitramfs with: - 0-2 early cpio archives - 0-2 main cpio archives - All supported compressors, including none, for the last main archive and verifies that the output is as expected. Signed-off-by: Ben Hutchings <benh@debian.org>
128 lines
2.9 KiB
Bash
Executable File
128 lines
2.9 KiB
Bash
Executable File
#!/bin/sh
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set -eu
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make_one_archive() {
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local type="$1"
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local i="$2"
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local dir_name
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local j
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case "$type" in
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early)
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dir_name=kernel
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;;
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main)
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dir_name="dir$i"
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;;
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*)
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echo >&2 "E: Bad archive type $type"
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exit 1
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;;
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esac
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mkdir -p "$AUTOPKGTEST_TMP/input/$type$i/$dir_name"
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for j in $(seq 0 9); do
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size=$((j * 987 + i * 654 + 321))
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dd if=/dev/urandom of="$AUTOPKGTEST_TMP/input/$type$i/$dir_name/file$j" \
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bs="$size" count=1 status=none
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done
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(
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cd "$AUTOPKGTEST_TMP/input/$type$i"
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find . | cpio -H newc -o --quiet > ../"$type$i.cpio"
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)
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}
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# Create input files and archives
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mkdir "$AUTOPKGTEST_TMP/input"
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for in_type in early main; do
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for i in 0 1 2; do
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make_one_archive "$in_type" "$i"
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done
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done
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# Dummy compressor; wrapper for cat that ignores its argument (-c)
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no_compressor() {
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# shellcheck disable=SC2317
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cat
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}
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rc=0
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# Test up to 2 early and 2 main cpio archives, and all supported
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# compressors (including none) for the last main archive
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for n_early in 0 1 2; do
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for n_main in 0 1 2; do
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# There must be at least 1 archive
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if [ $((n_early + n_main)) -eq 0 ]; then
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continue
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fi
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for compressor in no_compressor gzip bzip2 xz lzop 'lz4 -l' zstd; do
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# If last archive is early, it can't be compressed
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if [ $n_main -eq 0 ] && [ "$compressor" != no_compressor ]; then
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continue
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fi
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echo "I: Testing $n_early early + $n_main main archive(s) with $compressor"
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# Construct initramfs image
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: > "$AUTOPKGTEST_TMP/initrd.img"
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for i in $(seq 0 $((n_early - 1))); do
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cat "$AUTOPKGTEST_TMP/input/early$i.cpio" \
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>> "$AUTOPKGTEST_TMP/initrd.img"
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done
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for i in $(seq 0 $((n_main - 2))); do
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cat "$AUTOPKGTEST_TMP/input/main$i.cpio" \
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>> "$AUTOPKGTEST_TMP/initrd.img"
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done
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if [ $n_main -ge 1 ]; then
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$compressor -c < "$AUTOPKGTEST_TMP/input/main$((n_main - 1)).cpio" \
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>> "$AUTOPKGTEST_TMP/initrd.img"
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fi
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# Unpack it
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rm -rf "$AUTOPKGTEST_TMP/output"
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unmkinitramfs "$AUTOPKGTEST_TMP/initrd.img" \
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"$AUTOPKGTEST_TMP/output" \
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|| {
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echo >&2 'E: unmkinitramfs failed'
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rc=1
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continue
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}
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# Construct what we expect output to look like
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rm -rf "$AUTOPKGTEST_TMP/reference"
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mkdir "$AUTOPKGTEST_TMP/reference"
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for i in $(seq 0 $((n_early - 1))); do
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if [ "$i" -eq 0 ]; then
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dir_name=early
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else
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dir_name=early$((i + 1))
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fi
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ln -s ../input/"early$i" \
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"$AUTOPKGTEST_TMP/reference/$dir_name"
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done
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for i in $(seq 0 $((n_main - 1))); do
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if [ $n_early = 0 ]; then
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ln -s ../input/"main$i/dir$i" \
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"$AUTOPKGTEST_TMP/reference/dir$i"
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else
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mkdir -p "$AUTOPKGTEST_TMP/reference/main"
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ln -s ../../input/"main$i/dir$i" \
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"$AUTOPKGTEST_TMP/reference/main/dir$i"
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fi
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done
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# Compare reference and output
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diff -r "$AUTOPKGTEST_TMP/reference" \
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"$AUTOPKGTEST_TMP/output" \
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|| {
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echo >&2 'E: Output files do not match input'
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rc=1
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}
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done
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done
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done
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exit $rc
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