test
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34
prepdb.sh
34
prepdb.sh
@@ -20,11 +20,11 @@ replace_in_sqlite_db() {
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local OLD_STRING_ESC=$(printf '%s\n' "$OLD_STRING" | sed "s/'/''/g")
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local NEW_STRING_ESC=$(printf '%s\n' "$NEW_STRING" | sed "s/'/''/g")
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# Begin a transaction
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sqlite3 "$DB_PATH" "BEGIN TRANSACTION;" || {
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# Start a transaction with immediate mode for better locking
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if ! sqlite3 "$DB_PATH" "BEGIN IMMEDIATE TRANSACTION;"; then
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echo "Error: Failed to begin transaction"
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exit 1
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}
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fi
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# Get a list of all tables in the database
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local TABLES
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@@ -34,6 +34,9 @@ replace_in_sqlite_db() {
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exit 1
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}
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# Track if we made any changes
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local CHANGES_MADE=false
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# Loop through each table
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for TABLE in $TABLES; do
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echo "Processing table: $TABLE"
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@@ -65,21 +68,38 @@ replace_in_sqlite_db() {
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fi
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# Update only rows where the column contains OLD_STRING
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if ! sqlite3 "$DB_PATH" "
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if sqlite3 "$DB_PATH" "
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UPDATE $ESCAPED_TABLE
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SET $ESCAPED_COLUMN = replace(CAST($ESCAPED_COLUMN AS TEXT), '$OLD_STRING_ESC', '$NEW_STRING_ESC')
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WHERE CAST($ESCAPED_COLUMN AS TEXT) LIKE '%$OLD_STRING_ESC%';
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" 2>/dev/null; then
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CHANGES_MADE=true
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else
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echo " Warning: Failed to update table $TABLE, column $COLUMN"
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fi
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fi
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done
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done
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# Commit the transaction
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if ! sqlite3 "$DB_PATH" "COMMIT;" 2>/dev/null; then
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echo "Warning: Failed to commit transaction. Some changes may not have been applied."
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# Try to commit the transaction with retries
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local RETRIES=3
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local COMMIT_SUCCESS=false
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while [ $RETRIES -gt 0 ]; do
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if sqlite3 "$DB_PATH" "COMMIT;" 2>/dev/null; then
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COMMIT_SUCCESS=true
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break
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else
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echo "Warning: Failed to commit transaction, retrying ($RETRIES attempts left)..."
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sleep 1
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((RETRIES--))
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fi
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done
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if [ "$COMMIT_SUCCESS" = false ]; then
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echo "Error: Failed to commit transaction after multiple attempts"
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sqlite3 "$DB_PATH" "ROLLBACK;" 2>/dev/null
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exit 1
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else
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echo "Replacement completed in '$DB_PATH'. Original database backed up to '$BACKUP_PATH'."
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fi
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