Rewrite remembering in Go

The shell pipeline (sed | sort | tee | awk | sort | cut | "$@"
plus the cut | uniq | awk profile rewrite) becomes a single static
binary with the same observable behaviour, pinned by the original
ranking.sh, signals.sh and cli-opts.sh suites, now aimed at
remembering.bin:

- the profile keeps the exact on-disk format, COUNT profile TEXT,
  byte-sorted with new picks appended at 1 and offered-but-never-
  picked entries persisted at 0;
- the menu stays count-descending with byte-order ties, stdin
  alone defines what is offered, and duplicate profile lines sum
  for ranking but collapse to the highest count on rewrite, as
  sort | uniq -f1 did;
- the wrapped command's exit status is forwarded as-is (128+sig
  for signal deaths), its stderr passes through, and an empty pick
  learns nothing;
- the profile rewrite stays atomic via .tmp plus rename.

Per the house CLI conventions, -h/-V/--help/--version are gone
(the manpage is the documentation; bad options print the usage on
stderr and exit 2), and getopts-style attached option arguments
(-pNAME) are not accepted any more --- no script in the wild used
them.

The project layout follows rot: raw go tool compile/link Makefile,
mkdeps.sh-generated deps.mk, white-box unit suite, fuzz target
over the profile parse/serialize roundtrip, functional pick
roundtrip, a 1M-line ranking benchmark, and a single English
asciidoc manpage absorbing the old .5 page; the po4a/aux release
machinery goes away.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

1 files changed, 7 insertions, 5 deletions

diff --git a/tests/ranking.sh b/tests/ranking.sh
index af26c94..45cb0ec 100755
--- a/tests/ranking.sh
+++ b/tests/ranking.sh
@@ -3,6 +3,8 @@ set -eu
 
 . tests/lib.sh
 
+REMEMBERING="$PWD/remembering.bin"
+
 export XDG_DATA_HOME="$PWD/tests/test-profiles"
 export LANG=C.UTF-8
 
@@ -38,7 +40,7 @@ pick_x() {
 	PICK="$1"
 
 	echo "${2:-$INPUT}" | \
-		./src/remembering \
+		"$REMEMBERING" \
 			-p "$PROFILE" \
 			-- sh -c "tee -a /dev/stderr | grep -F \"$PICK\"" \
 			1>"$OUT" 2>"$ERR"
@@ -83,7 +85,7 @@ test_picking_first_makes_it_be_always_first() {
 	PROFILE="always-picks-first-$(uuid)"
 	for _ in $(seq 10); do
 		printf 'always-picked\nnever-picked\n' | \
-			./src/remembering \
+			"$REMEMBERING" \
 				-p "$PROFILE" \
 				-- head -n1 \
 				1>"$OUT" 2>"$ERR"
@@ -203,7 +205,7 @@ d
 e'
 
 	echo "$INPUT" | \
-		./src/remembering \
+		"$REMEMBERING" \
 			-p "$PROFILE" \
 			-- echo f \
 			1>"$OUT" 2>"$ERR"
@@ -277,7 +279,7 @@ test_stdin_is_empty() {
 	ERR="$(mkstemp)"
 
 	printf '' | \
-		./src/remembering \
+		"$REMEMBERING" \
 			-p "$PROFILE" \
 			-- sh -c 'tee -a /dev/stderr | head -n1' \
 			1>"$OUT" 2>"$ERR"
@@ -340,7 +342,7 @@ test_really_long_list() {
 	PROFILE="really-long-list-$(uuid)"
 	N=999999
 	seq "$N"  | \
-		./src/remembering \
+		"$REMEMBERING" \
 			-p "$PROFILE" \
 			-- tail -n1 \
 			1>"$OUT" 2>"$ERR"