mirror of
https://github.com/aljazceru/lightning.git
synced 2025-12-22 08:34:20 +01:00
bkpr: first attempt at database code for accounting
A database scheme and first attempt at drivers for the bookkeeper database. Also moves bookkeeper plugin into its own subdirectory
This commit is contained in:
niftynei
43
plugins/bkpr/Makefile
Normal file
43
plugins/bkpr/Makefile
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@@ -0,0 +1,43 @@
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#! /usr/bin/make
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BOOKKEEPER_PLUGIN_SRC := \
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plugins/bkpr/bookkeeper.c \
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plugins/bkpr/db.c
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BOOKKEEPER_DB_QUERIES := \
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plugins/bkpr/db_sqlite3_sqlgen.c \
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plugins/bkpr/db_postgres_sqlgen.c
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BOOKKEEPER_SRC := $(BOOKKEEPER_PLUGIN_SRC) $(BOOKKEEPER_DB_QUERIES)
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BOOKKEEPER_HEADER := plugins/bkpr/db.h
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BOOKKEEPER_OBJS := $(BOOKKEEPER_SRC:.c=.o)
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$(BOOKKEEPER_OBJS): $(PLUGIN_LIB_HEADER) $(BOOKKEEPER_HEADER)
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ALL_C_SOURCES += $(BOOKKEEPER_SRC)
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ALL_C_HEADERS += $(BOOKKEEPER_HEADER)
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ALL_PROGRAMS += plugins/bookkeeper
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plugins/bookkeeper: bitcoin/chainparams.o common/coin_mvt.o $(BOOKKEEPER_OBJS) $(PLUGIN_LIB_OBJS) $(JSMN_OBJTS) $(PLUGIN_COMMON_OBJS) $(WIRE_OBJS) $(DB_OBJS)
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# The following files contain SQL-annotated statements that we need to extact
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BOOKKEEPER_SQL_FILES := \
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$(DB_SQL_FILES) \
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plugins/bkpr/db.c
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plugins/bkpr/statements_gettextgen.po: $(BOOKKEEPER_SQL_FILES) $(FORCE)
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@if $(call SHA256STAMP_CHANGED_ALL); then \
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$(call VERBOSE,"xgettext $@",xgettext -kNAMED_SQL -kSQL --add-location --no-wrap --omit-header -o $@ $(BOOKKEEPER_SQL_FILES) && $(call SHA256STAMP_ALL,# ,)); \
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fi
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plugins/bkpr/db_%_sqlgen.c: plugins/bkpr/statements_gettextgen.po devtools/sql-rewrite.py $(BOOKKEEPER_SQL_FILES) $(FORCE)
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@if $(call SHA256STAMP_CHANGED); then \
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$(call VERBOSE,"sql-rewrite $@",devtools/sql-rewrite.py plugins/bkpr/statements_gettextgen.po $* > $@ && $(call SHA256STAMP,//,)); \
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fi
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maintainer-clean: clean
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clean: bkpr-maintainer-clean
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bkpr-maintainer-clean:
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$(RM) plugins/bkpr/statements.po
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$(RM) plugins/bkpr/statements_gettextgen.po
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$(RM) $(BOOKKEEPER_DB_QUERIES)
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349
plugins/bkpr/bookkeeper.c
Normal file
349
plugins/bkpr/bookkeeper.c
Normal file
@@ -0,0 +1,349 @@
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#include "config.h"
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#include <ccan/array_size/array_size.h>
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#include <common/coin_mvt.h>
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#include <common/json_param.h>
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#include <common/memleak.h>
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#include <common/node_id.h>
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#include <common/type_to_string.h>
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#include <plugins/bkpr/db.h>
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#include <plugins/libplugin.h>
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#define CHAIN_MOVE "chain_mvt"
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#define CHANNEL_MOVE "channel_mvt"
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/* The database that we store all the accounting data in */
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static struct db *db ;
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// FIXME: make relative to directory we're loaded into
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static char *db_dsn = "sqlite3://accounts.sqlite3";
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static struct command_result *json_list_balances(struct command *cmd,
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const char *buf,
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const jsmntok_t *params)
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{
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struct json_stream *res;
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if (!param(cmd, buf, params, NULL))
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return command_param_failed();
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res = jsonrpc_stream_success(cmd);
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return command_finished(cmd, res);
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}
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struct account_snap {
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char *name;
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struct amount_msat amt;
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char *coin_type;
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};
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static struct command_result *json_balance_snapshot(struct command *cmd,
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const char *buf,
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const jsmntok_t *params)
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{
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const char *err;
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size_t i;
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struct node_id node_id;
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u32 blockheight;
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u64 timestamp;
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struct account_snap *snaps;
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const jsmntok_t *accounts_tok, *acct_tok,
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*snap_tok = json_get_member(buf, params, "balance_snapshot");
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if (snap_tok == NULL || snap_tok->type != JSMN_OBJECT)
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plugin_err(cmd->plugin,
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"`balance_snapshot` payload did not scan %s: %.*s",
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"no 'balance_snapshot'", json_tok_full_len(params),
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json_tok_full(buf, params));
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err = json_scan(cmd, buf, snap_tok,
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"{node_id:%"
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",blockheight:%"
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",timestamp:%}",
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JSON_SCAN(json_to_node_id, &node_id),
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JSON_SCAN(json_to_number, &blockheight),
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JSON_SCAN(json_to_u64, ×tamp));
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if (err)
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plugin_err(cmd->plugin,
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"`balance_snapshot` payload did not scan %s: %.*s",
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err, json_tok_full_len(params),
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json_tok_full(buf, params));
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plugin_log(cmd->plugin, LOG_DBG, "balances for node %s at %d"
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" (%"PRIu64")",
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type_to_string(tmpctx, struct node_id, &node_id),
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blockheight, timestamp);
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accounts_tok = json_get_member(buf, snap_tok, "accounts");
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if (accounts_tok == NULL || accounts_tok->type != JSMN_ARRAY)
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plugin_err(cmd->plugin,
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"`balance_snapshot` payload did not scan %s: %.*s",
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"no 'balance_snapshot.accounts'",
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json_tok_full_len(params),
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json_tok_full(buf, params));
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snaps = tal_arr(cmd, struct account_snap, accounts_tok->size);
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json_for_each_arr(i, acct_tok, accounts_tok) {
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struct account_snap s = snaps[i];
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err = json_scan(cmd, buf, acct_tok,
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"{account_id:%"
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",balance_msat:%"
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",coin_type:%}",
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JSON_SCAN_TAL(tmpctx, json_strdup, &s.name),
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JSON_SCAN(json_to_msat, &s.amt),
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JSON_SCAN_TAL(tmpctx, json_strdup,
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&s.coin_type));
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if (err)
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plugin_err(cmd->plugin,
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"`balance_snapshot` payload did not"
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" scan %s: %.*s",
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err, json_tok_full_len(params),
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json_tok_full(buf, params));
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plugin_log(cmd->plugin, LOG_DBG, "account %s has balance %s",
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s.name,
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type_to_string(tmpctx, struct amount_msat, &s.amt));
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}
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// FIXME: check balances are ok!
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return notification_handled(cmd);
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}
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static const char *parse_and_log_chain_move(struct command *cmd,
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const char *buf,
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const jsmntok_t *params,
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const struct node_id *node_id,
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const char *acct_name STEALS,
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const struct amount_msat credit,
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const struct amount_msat debit,
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const char *coin_type STEALS,
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const u32 timestamp,
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const enum mvt_tag *tags)
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{
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struct bitcoin_outpoint outpt;
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static struct amount_msat output_value;
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struct sha256 *payment_hash = tal(tmpctx, struct sha256);
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struct bitcoin_txid *spending_txid = tal(tmpctx, struct bitcoin_txid);
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u32 blockheight;
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const char *err;
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/* Fields we expect on *every* chain movement */
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err = json_scan(tmpctx, buf, params,
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"{coin_movement:"
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"{utxo_txid:%"
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",vout:%"
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",output_msat:%"
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",blockheight:%"
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"}}",
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JSON_SCAN(json_to_txid, &outpt.txid),
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JSON_SCAN(json_to_number, &outpt.n),
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JSON_SCAN(json_to_msat, &output_value),
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JSON_SCAN(json_to_number, &blockheight));
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if (err)
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return err;
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/* Now try to get out the optional parts */
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err = json_scan(tmpctx, buf, params,
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"{coin_movement:"
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"{txid:%"
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"}}",
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JSON_SCAN(json_to_txid, spending_txid));
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if (err)
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spending_txid = tal_free(spending_txid);
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/* Now try to get out the optional parts */
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err = json_scan(tmpctx, buf, params,
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"{coin_movement:"
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"{payment_hash:%"
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"}}",
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JSON_SCAN(json_to_sha256, payment_hash));
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if (err)
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payment_hash = tal_free(payment_hash);
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// FIXME: enter into database
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return NULL;
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}
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static const char *parse_and_log_channel_move(struct command *cmd,
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const char *buf,
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const jsmntok_t *params,
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const struct node_id *node_id,
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const char *acct_name STEALS,
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const struct amount_msat credit,
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const struct amount_msat debit,
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const char *coin_type STEALS,
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const u32 timestamp,
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const enum mvt_tag *tags)
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{
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struct sha256 payment_hash;
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u64 part_id;
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struct amount_msat fees;
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const char *err;
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err = json_scan(tmpctx, buf, params,
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"{coin_movement:"
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"{payment_hash:%"
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",fees:%"
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"}}",
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JSON_SCAN(json_to_sha256, &payment_hash),
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JSON_SCAN(json_to_msat, &fees));
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if (err)
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return err;
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err = json_scan(tmpctx, buf, params,
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"{coin_movement:"
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"{part_id:%}}",
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JSON_SCAN(json_to_u64, &part_id));
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if (err)
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part_id = 0;
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// FIXME: enter into database?
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return NULL;
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}
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static char *parse_tags(const tal_t *ctx,
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const char *buf,
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const jsmntok_t *tok,
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enum mvt_tag **tags)
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{
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size_t i;
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const jsmntok_t *tag_tok,
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*tags_tok = json_get_member(buf, tok, "tags");
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if (tags_tok == NULL || tags_tok->type != JSMN_ARRAY)
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return "Invalid/missing 'tags' field";
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*tags = tal_arr(ctx, enum mvt_tag, tags_tok->size);
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json_for_each_arr(i, tag_tok, tags_tok) {
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if (!json_to_coin_mvt_tag(buf, tag_tok, &(*tags)[i]))
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return "Unable to parse 'tags'";
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}
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return NULL;
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}
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static struct command_result * json_coin_moved(struct command *cmd,
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const char *buf,
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const jsmntok_t *params)
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{
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const char *err, *mvt_type, *acct_name, *coin_type;
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struct node_id node_id;
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u32 version;
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u64 timestamp;
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struct amount_msat credit, debit;
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enum mvt_tag *tags;
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err = json_scan(tmpctx, buf, params,
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"{coin_movement:"
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"{version:%"
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",node_id:%"
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",type:%"
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",account_id:%"
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",credit_msat:%"
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",debit_msat:%"
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",coin_type:%"
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",timestamp:%"
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"}}",
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JSON_SCAN(json_to_number, &version),
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JSON_SCAN(json_to_node_id, &node_id),
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JSON_SCAN_TAL(tmpctx, json_strdup, &mvt_type),
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JSON_SCAN_TAL(tmpctx, json_strdup, &acct_name),
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JSON_SCAN(json_to_msat, &credit),
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JSON_SCAN(json_to_msat, &debit),
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JSON_SCAN_TAL(tmpctx, json_strdup, &coin_type),
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JSON_SCAN(json_to_u64, ×tamp));
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if (err)
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plugin_err(cmd->plugin,
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"`coin_movement` payload did not scan %s: %.*s",
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err, json_tok_full_len(params),
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json_tok_full(buf, params));
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err = parse_tags(cmd, buf,
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json_get_member(buf, params, "coin_movement"),
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&tags);
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if (err)
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plugin_err(cmd->plugin,
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"`coin_movement` payload did not scan %s: %.*s",
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err, json_tok_full_len(params),
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json_tok_full(buf, params));
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/* We expect version 2 of coin movements */
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assert(version == 2);
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plugin_log(cmd->plugin, LOG_DBG, "coin_move %d %s -%s %s %"PRIu64,
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version,
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type_to_string(tmpctx, struct amount_msat, &credit),
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type_to_string(tmpctx, struct amount_msat, &debit),
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mvt_type, timestamp);
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if (streq(mvt_type, CHAIN_MOVE))
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err = parse_and_log_chain_move(cmd, buf, params, &node_id,
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acct_name, credit, debit,
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coin_type, timestamp,
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tags);
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else {
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assert(streq(mvt_type, CHANNEL_MOVE));
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err = parse_and_log_channel_move(cmd, buf, params, &node_id,
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acct_name, credit, debit,
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coin_type, timestamp,
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tags);
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}
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if (err)
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plugin_err(cmd->plugin,
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"`coin_movement` payload did not scan %s: %.*s",
|
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err, json_tok_full_len(params),
|
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json_tok_full(buf, params));
|
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|
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return notification_handled(cmd);
|
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}
|
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|
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const struct plugin_notification notifs[] = {
|
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{
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"coin_movement",
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json_coin_moved,
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},
|
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{
|
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"balance_snapshot",
|
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json_balance_snapshot,
|
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}
|
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};
|
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|
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static const struct plugin_command commands[] = {
|
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{
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"listbalances",
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"bookkeeping",
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"List current account balances",
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"List of current accounts and their balances",
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json_list_balances
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},
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};
|
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|
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static const char *init(struct plugin *p, const char *b, const jsmntok_t *t)
|
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{
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// FIXME: pass in database DSN as an option??
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db = notleak(db_setup(p, p, db_dsn));
|
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|
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return NULL;
|
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}
|
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|
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int main(int argc, char *argv[])
|
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{
|
||||
setup_locale();
|
||||
|
||||
plugin_main(argv, init, PLUGIN_STATIC, true, NULL,
|
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commands, ARRAY_SIZE(commands),
|
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notifs, ARRAY_SIZE(notifs),
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NULL, 0,
|
||||
NULL, 0,
|
||||
NULL);
|
||||
return 0;
|
||||
}
|
||||
168
plugins/bkpr/db.c
Normal file
168
plugins/bkpr/db.c
Normal file
@@ -0,0 +1,168 @@
|
||||
#include "config.h"
|
||||
#include <ccan/array_size/array_size.h>
|
||||
#include <db/bindings.h>
|
||||
#include <db/common.h>
|
||||
#include <db/exec.h>
|
||||
#include <db/utils.h>
|
||||
#include <plugins/bkpr/db.h>
|
||||
#include <plugins/libplugin.h>
|
||||
#include <stdio.h>
|
||||
|
||||
struct migration {
|
||||
const char *sql;
|
||||
void (*func)(struct plugin *p, struct db *db);
|
||||
};
|
||||
|
||||
/* Do not reorder or remove elements from this array.
|
||||
* It is used to migrate existing databases from a prevoius state, based on
|
||||
* string indicies */
|
||||
static struct migration db_migrations[] = {
|
||||
{SQL("CREATE TABLE version (version INTEGER);"), NULL},
|
||||
{SQL("INSERT INTO version VALUES (1);"), NULL},
|
||||
{SQL("CREATE TABLE vars ("
|
||||
" name TEXT"
|
||||
", val TEXT"
|
||||
", intval INTEGER"
|
||||
", blobval BLOB"
|
||||
", PRIMARY KEY (name)"
|
||||
");"),
|
||||
NULL},
|
||||
{SQL("INSERT INTO vars ("
|
||||
" name"
|
||||
", intval"
|
||||
") VALUES ("
|
||||
" 'data_version'"
|
||||
", 0"
|
||||
");"),
|
||||
NULL},
|
||||
{SQL("CREATE TABLE accounts ("
|
||||
" id BIGSERIAL"
|
||||
", name TEXT"
|
||||
", peer_id BLOB"
|
||||
", opened_event_id BIGINT"
|
||||
", closed_event_id BIGINT"
|
||||
", onchain_resolved_block INTEGER"
|
||||
", is_wallet INTEGER"
|
||||
", we_opened INTEGER"
|
||||
", leased INTEGER"
|
||||
", last_updated_ts BIGINT"
|
||||
", last_updated_block INTEGER"
|
||||
", PRIMARY KEY (id)"
|
||||
");"),
|
||||
NULL},
|
||||
{SQL("CREATE TABLE chain_events ("
|
||||
" id BIGSERIAL"
|
||||
", account_id BIGINT REFERENCES accounts(id)"
|
||||
", tag TEXT"
|
||||
", credit BIGINT"
|
||||
", debit BIGINT"
|
||||
", output_value BIGINT"
|
||||
", currency TEXT"
|
||||
", timestamp BIGINT"
|
||||
", blockheight INTEGER"
|
||||
", utxo_txid BLOB"
|
||||
", outnum INTEGER"
|
||||
", spending_txid BLOB"
|
||||
", PRIMARY KEY (id)"
|
||||
");"),
|
||||
NULL},
|
||||
{SQL("CREATE TABLE channel_events ("
|
||||
" id BIGSERIAL"
|
||||
", account_id BIGINT REFERENCES accounts(id)"
|
||||
", tag TEXT"
|
||||
", credit BIGINT"
|
||||
", debit BIGINT"
|
||||
", fees BIGINT"
|
||||
", currency TEXT"
|
||||
", payment_id BLOB"
|
||||
", part_id INTEGER"
|
||||
", timestamp BIGINT"
|
||||
", PRIMARY KEY (id)"
|
||||
");"),
|
||||
NULL},
|
||||
{SQL("CREATE TABLE onchain_fees ("
|
||||
"account_id BIGINT REFERENCES accounts(id)"
|
||||
", txid BLOB"
|
||||
", amount BIGINT"
|
||||
", PRIMARY KEY (account_id, txid)"
|
||||
");"),
|
||||
NULL},
|
||||
};
|
||||
|
||||
static bool db_migrate(struct plugin *p, struct db *db)
|
||||
{
|
||||
/* Read current version from database */
|
||||
int current, orig, available;
|
||||
struct db_stmt *stmt;
|
||||
|
||||
orig = current = db_get_version(db);
|
||||
available = ARRAY_SIZE(db_migrations) - 1;
|
||||
|
||||
if (current == -1)
|
||||
plugin_log(p, LOG_INFORM, "Creating database");
|
||||
else if (available < current)
|
||||
plugin_err(p,
|
||||
"Refusing to migrate down from version %u to %u",
|
||||
current, available);
|
||||
else if (current != available)
|
||||
plugin_log(p, LOG_INFORM,
|
||||
"Updating database from version %u to %u",
|
||||
current, available);
|
||||
|
||||
while (current < available) {
|
||||
current++;
|
||||
if (db_migrations[current].sql) {
|
||||
struct db_stmt *stmt =
|
||||
db_prepare_v2(db, db_migrations[current].sql);
|
||||
db_exec_prepared_v2(take(stmt));
|
||||
}
|
||||
if (db_migrations[current].func)
|
||||
db_migrations[current].func(p, db);
|
||||
}
|
||||
|
||||
/* Finally, update the version number in the version table */
|
||||
stmt = db_prepare_v2(db, SQL("UPDATE version SET version=?;"));
|
||||
db_bind_int(stmt, 0, available);
|
||||
db_exec_prepared_v2(take(stmt));
|
||||
|
||||
return current != orig;
|
||||
}
|
||||
|
||||
/* Implement db_fatal, as a wrapper around fatal.
|
||||
* We use a ifndef block so that it can get be
|
||||
* implemented in a test file first, if necessary */
|
||||
#ifndef DB_FATAL
|
||||
#define DB_FATAL
|
||||
void db_fatal(const char *fmt, ...)
|
||||
{
|
||||
va_list ap;
|
||||
|
||||
va_start(ap, fmt);
|
||||
vfprintf(stderr, fmt, ap);
|
||||
fprintf(stderr, "\n");
|
||||
va_end(ap);
|
||||
|
||||
exit(1);
|
||||
}
|
||||
#endif /* DB_FATAL */
|
||||
|
||||
struct db *db_setup(const tal_t *ctx, struct plugin *p, char *db_dsn)
|
||||
{
|
||||
bool migrated;
|
||||
struct db *db = db_open(ctx, db_dsn);
|
||||
|
||||
db->report_changes_fn = NULL;
|
||||
|
||||
db_begin_transaction(db);
|
||||
migrated = db_migrate(p, db);
|
||||
db->data_version = db_data_version_get(db);
|
||||
db_commit_transaction(db);
|
||||
|
||||
/* This needs to be done outside a transaction, apparently.
|
||||
* It's a good idea to do this every so often, and on db
|
||||
* upgrade is a reasonable time. */
|
||||
if (migrated && !db->config->vacuum_fn(db))
|
||||
db_fatal("Error vacuuming db: %s", db->error);
|
||||
|
||||
return db;
|
||||
}
|
||||
11
plugins/bkpr/db.h
Normal file
11
plugins/bkpr/db.h
Normal file
@@ -0,0 +1,11 @@
|
||||
#ifndef LIGHTNING_PLUGINS_BKPR_DB_H
|
||||
#define LIGHTNING_PLUGINS_BKPR_DB_H
|
||||
#include "config.h"
|
||||
#include <ccan/tal/tal.h>
|
||||
|
||||
struct plugin;
|
||||
struct db;
|
||||
|
||||
struct db *db_setup(const tal_t *ctx, struct plugin *p, char *db_dsn);
|
||||
|
||||
#endif /* LIGHTNING_PLUGINS_BKPR_DB_H */
|
||||
Reference in New Issue
Block a user