# ddrescue (BRINTOS-149) — GNU ddrescue 1.28: data recovery / block copier
# with mapfile resume. A C++ tool, built against the exceptions-off libc++ arm
# (wasmc++-glibc): it carries no throw/try/catch of its own, so -fno-exceptions
# costs it nothing.
. "$BST_LIB"
require ddrescue ddrescue/present

tmp=${TMPDIR:-/tmp}/bst-ddrescue.$$
mkdir "$tmp" 2>/dev/null

check_out ddrescue/version "GNU ddrescue 1.28" ddrescue -V

# regular-file copy with a mapfile: the everyday rescue shape
i=0
while [ $i -lt 64 ]; do printf 'block-%04d 0123456789abcdef\n' $i; i=$((i+1)); done > "$tmp/in.bin"
check ddrescue/copy-rc ddrescue -q "$tmp/in.bin" "$tmp/out.bin" "$tmp/map"
check ddrescue/roundtrip cmp "$tmp/in.bin" "$tmp/out.bin"

# the mapfile records the rescue and ends finished ('+' status)
check_out ddrescue/map-header "Created by GNU ddrescue" cat "$tmp/map"
if grep -q '^0x[0-9A-Fa-f]*  *0x[0-9A-Fa-f]*  *+' "$tmp/map"; then
    bst_ok ddrescue/map-finished
else bst_notok ddrescue/map-finished "no finished (+) block in mapfile"; fi

# resume against a finished mapfile is a clean no-op
check ddrescue/resume-rc ddrescue -q "$tmp/in.bin" "$tmp/out.bin" "$tmp/map"

# ddrescuelog ships alongside; -D exits 0 only when the rescue is finished
check_out ddrescuelog/version "GNU ddrescuelog 1.28" ddrescuelog -V
check ddrescuelog/done-status ddrescuelog -D "$tmp/map"

rm -rf "$tmp"