From 2d1c9c9d16c9d1f6e5dba4a50d623d14c66ff899 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Thu, 16 Jan 2020 23:18:53 +0100
Subject: bin/bisect-database-dumps: make used dumps more selectable

---
 bin/bisect-database-dumps | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

(limited to 'bin/bisect-database-dumps')

diff --git a/bin/bisect-database-dumps b/bin/bisect-database-dumps
index d788d1f..f92e835 100755
--- a/bin/bisect-database-dumps
+++ b/bin/bisect-database-dumps
@@ -3,8 +3,11 @@
 # bisect through the database dumps to see when a specific thing
 # appeared first
 
+expr="$1"
+shift
+
 dumps=$(
-  find '/data/backup/mysql' -mindepth 1 -maxdepth 1 -name 'database-*.xz' -exec ls -tr {} + \
+  find '/data/backup/mysql' -mindepth 1 -maxdepth 1 -name 'database-*.xz' "$@" -exec ls -tr {} + \
   | sort
 )
 
@@ -13,8 +16,8 @@ has=$(
     tail -n1
 )
 
-if ! xzgrep -q "$@" "${has}"; then
-  >&2 printf 'cannot find "%s" in the latest dump - swapping directions\n' "$*"
+if ! xzgrep -q "${expr}" "${has}"; then
+  >&2 printf 'cannot find "%s" in the latest dump - swapping directions\n' "${expr}"
   dumps=$(
     printf '%s\n' "${dumps}" | \
       tac
@@ -23,7 +26,7 @@ if ! xzgrep -q "$@" "${has}"; then
     printf '%s\n' "$dumps" | \
       tail -n1
   )
-  if ! xzgrep -q "$@" "${has}"; then
+  if ! xzgrep -q "${expr}" "${has}"; then
     >&2 printf 'cannot find "%s" in the earliest dump either - swapping directions did not help\n' "$*"
     exit 1
   fi
@@ -34,7 +37,7 @@ has_not=$(
     head -n1
 )
 
-if xzgrep -q "$@" "${has_not}"; then
+if xzgrep -q "${expr}" "${has_not}"; then
   >&2 printf 'first dump does also have "%s"\n' "$*"
   exit 1
 fi
@@ -57,7 +60,7 @@ while [ "${count}" -gt 2 ]; do
       '
   )
   >&2 printf 'looking into "%s" ... ' "${pivot}"
-  if xzgrep -q "$@" "${pivot}"; then
+  if xzgrep -q "${expr}" "${pivot}"; then
     >&2 printf 'has'
     has="${pivot}"
   else
-- 
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