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#include "common.h"
#include "log.h"
#ifndef SEAFILE_SERVER
#include "db.h"
#else
#include "seaf-db.h"
#endif
#include "seafile-session.h"
#include "branch-mgr.h"
#define BRANCH_DB "branch.db"
SeafBranch *
seaf_branch_new (const char *name, const char *repo_id, const char *commit_id)
{
SeafBranch *branch;
branch = g_new0 (SeafBranch, 1);
branch->name = g_strdup (name);
memcpy (branch->repo_id, repo_id, 36);
branch->repo_id[36] = '\0';
memcpy (branch->commit_id, commit_id, 40);
branch->commit_id[40] = '\0';
branch->ref = 1;
return branch;
}
void
seaf_branch_free (SeafBranch *branch)
{
if (branch == NULL) return;
g_free (branch->name);
g_free (branch);
}
void
seaf_branch_list_free (GList *blist)
{
GList *ptr;
for (ptr = blist; ptr; ptr = ptr->next) {
seaf_branch_unref (ptr->data);
}
g_list_free (blist);
}
void
seaf_branch_set_commit (SeafBranch *branch, const char *commit_id)
{
memcpy (branch->commit_id, commit_id, 40);
branch->commit_id[40] = '\0';
}
void
seaf_branch_ref (SeafBranch *branch)
{
branch->ref++;
}
void
seaf_branch_unref (SeafBranch *branch)
{
if (!branch)
return;
if (--branch->ref <= 0)
seaf_branch_free (branch);
}
struct _SeafBranchManagerPriv {
sqlite3 *db;
#ifndef SEAFILE_SERVER
pthread_mutex_t db_lock;
#endif
#if defined( SEAFILE_SERVER ) && defined( FULL_FEATURE )
uint32_t cevent_id;
#endif
};
#if defined( SEAFILE_SERVER ) && defined( FULL_FEATURE )
#include "mq-mgr.h"
#include <ccnet/cevent.h>
static void publish_repo_update_event (CEvent *event, void *data);
#endif
static int open_db (SeafBranchManager *mgr);
SeafBranchManager *
seaf_branch_manager_new (struct _SeafileSession *seaf)
{
SeafBranchManager *mgr;
mgr = g_new0 (SeafBranchManager, 1);
mgr->priv = g_new0 (SeafBranchManagerPriv, 1);
mgr->seaf = seaf;
#ifndef SEAFILE_SERVER
pthread_mutex_init (&mgr->priv->db_lock, NULL);
#endif
return mgr;
}
int
seaf_branch_manager_init (SeafBranchManager *mgr)
{
#if defined( SEAFILE_SERVER ) && defined( FULL_FEATURE )
mgr->priv->cevent_id = cevent_manager_register (seaf->ev_mgr,
(cevent_handler)publish_repo_update_event,
NULL);
#endif
return open_db (mgr);
}
static int
open_db (SeafBranchManager *mgr)
{
#ifndef SEAFILE_SERVER
char *db_path;
const char *sql;
db_path = g_build_filename (mgr->seaf->seaf_dir, BRANCH_DB, NULL);
if (sqlite_open_db (db_path, &mgr->priv->db) < 0) {
g_critical ("[Branch mgr] Failed to open branch db\n");
g_free (db_path);
return -1;
}
g_free (db_path);
sql = "CREATE TABLE IF NOT EXISTS Branch ("
"name TEXT, repo_id TEXT, commit_id TEXT);";
if (sqlite_query_exec (mgr->priv->db, sql) < 0)
return -1;
sql = "CREATE INDEX IF NOT EXISTS branch_index ON Branch(repo_id, name);";
if (sqlite_query_exec (mgr->priv->db, sql) < 0)
return -1;
#elif defined FULL_FEATURE
char *sql;
switch (seaf_db_type (mgr->seaf->db)) {
case SEAF_DB_TYPE_MYSQL:
sql = "CREATE TABLE IF NOT EXISTS Branch ("
"name VARCHAR(10), repo_id CHAR(41), commit_id CHAR(41),"
"PRIMARY KEY (repo_id, name)) ENGINE = INNODB";
if (seaf_db_query (mgr->seaf->db, sql) < 0)
return -1;
break;
case SEAF_DB_TYPE_PGSQL:
sql = "CREATE TABLE IF NOT EXISTS Branch ("
"name VARCHAR(10), repo_id CHAR(40), commit_id CHAR(40),"
"PRIMARY KEY (repo_id, name))";
if (seaf_db_query (mgr->seaf->db, sql) < 0)
return -1;
break;
case SEAF_DB_TYPE_SQLITE:
sql = "CREATE TABLE IF NOT EXISTS Branch ("
"name VARCHAR(10), repo_id CHAR(41), commit_id CHAR(41),"
"PRIMARY KEY (repo_id, name))";
if (seaf_db_query (mgr->seaf->db, sql) < 0)
return -1;
break;
}
#endif
return 0;
}
int
seaf_branch_manager_add_branch (SeafBranchManager *mgr, SeafBranch *branch)
{
#ifndef SEAFILE_SERVER
char sql[256];
pthread_mutex_lock (&mgr->priv->db_lock);
sqlite3_snprintf (sizeof(sql), sql,
"SELECT 1 FROM Branch WHERE name=%Q and repo_id=%Q",
branch->name, branch->repo_id);
if (sqlite_check_for_existence (mgr->priv->db, sql))
sqlite3_snprintf (sizeof(sql), sql,
"UPDATE Branch SET commit_id=%Q WHERE "
"name=%Q and repo_id=%Q",
branch->commit_id, branch->name, branch->repo_id);
else
sqlite3_snprintf (sizeof(sql), sql,
"INSERT INTO Branch VALUES (%Q, %Q, %Q)",
branch->name, branch->repo_id, branch->commit_id);
sqlite_query_exec (mgr->priv->db, sql);
pthread_mutex_unlock (&mgr->priv->db_lock);
return 0;
#else
char *sql;
SeafDB *db = mgr->seaf->db;
if (seaf_db_type(db) == SEAF_DB_TYPE_PGSQL) {
gboolean exists, err;
int rc;
sql = "SELECT repo_id FROM Branch WHERE name=? AND repo_id=?";
exists = seaf_db_statement_exists(db, sql, &err,
2, "string", branch->name,
"string", branch->repo_id);
if (err)
return -1;
if (exists)
rc = seaf_db_statement_query (db,
"UPDATE Branch SET commit_id=? "
"WHERE name=? AND repo_id=?",
3, "string", branch->commit_id,
"string", branch->name,
"string", branch->repo_id);
else
rc = seaf_db_statement_query (db,
"INSERT INTO Branch VALUES (?, ?, ?)",
3, "string", branch->name,
"string", branch->repo_id,
"string", branch->commit_id);
if (rc < 0)
return -1;
} else {
int rc = seaf_db_statement_query (db,
"REPLACE INTO Branch VALUES (?, ?, ?)",
3, "string", branch->name,
"string", branch->repo_id,
"string", branch->commit_id);
if (rc < 0)
return -1;
}
return 0;
#endif
}
int
seaf_branch_manager_del_branch (SeafBranchManager *mgr,
const char *repo_id,
const char *name)
{
#ifndef SEAFILE_SERVER
char *sql;
pthread_mutex_lock (&mgr->priv->db_lock);
sql = sqlite3_mprintf ("DELETE FROM Branch WHERE name = %Q AND "
"repo_id = '%s'", name, repo_id);
if (sqlite_query_exec (mgr->priv->db, sql) < 0)
seaf_warning ("Delete branch %s failed\n", name);
sqlite3_free (sql);
pthread_mutex_unlock (&mgr->priv->db_lock);
return 0;
#else
int rc = seaf_db_statement_query (mgr->seaf->db,
"DELETE FROM Branch WHERE name=? AND repo_id=?",
2, "string", name, "string", repo_id);
if (rc < 0)
return -1;
return 0;
#endif
}
int
seaf_branch_manager_update_branch (SeafBranchManager *mgr, SeafBranch *branch)
{
#ifndef SEAFILE_SERVER
sqlite3 *db;
char *sql;
pthread_mutex_lock (&mgr->priv->db_lock);
db = mgr->priv->db;
sql = sqlite3_mprintf ("UPDATE Branch SET commit_id = %Q "
"WHERE name = %Q AND repo_id = %Q",
branch->commit_id, branch->name, branch->repo_id);
sqlite_query_exec (db, sql);
sqlite3_free (sql);
pthread_mutex_unlock (&mgr->priv->db_lock);
return 0;
#else
int rc = seaf_db_statement_query (mgr->seaf->db,
"UPDATE Branch SET commit_id = ? "
"WHERE name = ? AND repo_id = ?",
3, "string", branch->commit_id,
"string", branch->name,
"string", branch->repo_id);
if (rc < 0)
return -1;
return 0;
#endif
}
#if defined( SEAFILE_SERVER ) && defined( FULL_FEATURE )
static gboolean
get_commit_id (SeafDBRow *row, void *data)
{
char *out_commit_id = data;
const char *commit_id;
commit_id = seaf_db_row_get_column_text (row, 0);
memcpy (out_commit_id, commit_id, 41);
out_commit_id[40] = '\0';
return FALSE;
}
typedef struct {
char *repo_id;
char *commit_id;
} RepoUpdateEventData;
static void
publish_repo_update_event (CEvent *event, void *data)
{
RepoUpdateEventData *rdata = event->data;
char buf[128];
snprintf (buf, sizeof(buf), "repo-update\t%s\t%s",
rdata->repo_id, rdata->commit_id);
seaf_mq_manager_publish_event (seaf->mq_mgr, buf);
g_free (rdata->repo_id);
g_free (rdata->commit_id);
g_free (rdata);
}
static void
on_branch_updated (SeafBranchManager *mgr, SeafBranch *branch)
{
if (seaf_repo_manager_is_virtual_repo (seaf->repo_mgr, branch->repo_id))
return;
RepoUpdateEventData *rdata = g_new0 (RepoUpdateEventData, 1);
rdata->repo_id = g_strdup (branch->repo_id);
rdata->commit_id = g_strdup (branch->commit_id);
cevent_manager_add_event (seaf->ev_mgr, mgr->priv->cevent_id, rdata);
}
int
seaf_branch_manager_test_and_update_branch (SeafBranchManager *mgr,
SeafBranch *branch,
const char *old_commit_id)
{
SeafDBTrans *trans;
char *sql;
char commit_id[41] = { 0 };
trans = seaf_db_begin_transaction (mgr->seaf->db);
if (!trans)
return -1;
switch (seaf_db_type (mgr->seaf->db)) {
case SEAF_DB_TYPE_MYSQL:
case SEAF_DB_TYPE_PGSQL:
sql = "SELECT commit_id FROM Branch WHERE name=? "
"AND repo_id=? FOR UPDATE";
break;
case SEAF_DB_TYPE_SQLITE:
sql = "SELECT commit_id FROM Branch WHERE name=? "
"AND repo_id=?";
break;
default:
g_return_val_if_reached (-1);
}
if (seaf_db_trans_foreach_selected_row (trans, sql,
get_commit_id, commit_id,
2, "string", branch->name,
"string", branch->repo_id) < 0) {
seaf_db_rollback (trans);
seaf_db_trans_close (trans);
return -1;
}
if (strcmp (old_commit_id, commit_id) != 0) {
seaf_db_rollback (trans);
seaf_db_trans_close (trans);
return -1;
}
sql = "UPDATE Branch SET commit_id = ? "
"WHERE name = ? AND repo_id = ?";
if (seaf_db_trans_query (trans, sql, 3, "string", branch->commit_id,
"string", branch->name,
"string", branch->repo_id) < 0) {
seaf_db_rollback (trans);
seaf_db_trans_close (trans);
return -1;
}
if (seaf_db_commit (trans) < 0) {
seaf_db_rollback (trans);
seaf_db_trans_close (trans);
return -1;
}
seaf_db_trans_close (trans);
on_branch_updated (mgr, branch);
return 0;
}
#endif
#ifndef SEAFILE_SERVER
static SeafBranch *
real_get_branch (SeafBranchManager *mgr,
const char *repo_id,
const char *name)
{
SeafBranch *branch = NULL;
sqlite3_stmt *stmt;
sqlite3 *db;
char *sql;
int result;
pthread_mutex_lock (&mgr->priv->db_lock);
db = mgr->priv->db;
sql = sqlite3_mprintf ("SELECT commit_id FROM Branch "
"WHERE name = %Q and repo_id='%s'",
name, repo_id);
if (!(stmt = sqlite_query_prepare (db, sql))) {
seaf_warning ("[Branch mgr] Couldn't prepare query %s\n", sql);
sqlite3_free (sql);
pthread_mutex_unlock (&mgr->priv->db_lock);
return NULL;
}
sqlite3_free (sql);
result = sqlite3_step (stmt);
if (result == SQLITE_ROW) {
char *commit_id = (char *)sqlite3_column_text (stmt, 0);
branch = seaf_branch_new (name, repo_id, commit_id);
pthread_mutex_unlock (&mgr->priv->db_lock);
sqlite3_finalize (stmt);
return branch;
} else if (result == SQLITE_ERROR) {
const char *str = sqlite3_errmsg (db);
seaf_warning ("Couldn't prepare query, error: %d->'%s'\n",
result, str ? str : "no error given");
}
sqlite3_finalize (stmt);
pthread_mutex_unlock (&mgr->priv->db_lock);
return NULL;
}
SeafBranch *
seaf_branch_manager_get_branch (SeafBranchManager *mgr,
const char *repo_id,
const char *name)
{
SeafBranch *branch;
/* "fetch_head" maps to "local" or "master" on client (LAN sync) */
if (strcmp (name, "fetch_head") == 0) {
branch = real_get_branch (mgr, repo_id, "local");
if (!branch) {
branch = real_get_branch (mgr, repo_id, "master");
}
return branch;
} else {
return real_get_branch (mgr, repo_id, name);
}
}
#else
static gboolean
get_branch (SeafDBRow *row, void *vid)
{
char *ret = vid;
const char *commit_id;
commit_id = seaf_db_row_get_column_text (row, 0);
memcpy (ret, commit_id, 41);
return FALSE;
}
static SeafBranch *
real_get_branch (SeafBranchManager *mgr,
const char *repo_id,
const char *name)
{
char commit_id[41];
char *sql;
commit_id[0] = 0;
sql = "SELECT commit_id FROM Branch WHERE name=? AND repo_id=?";
if (seaf_db_statement_foreach_row (mgr->seaf->db, sql,
get_branch, commit_id,
2, "string", name, "string", repo_id) < 0) {
seaf_warning ("[branch mgr] DB error when get branch %s.\n", name);
return NULL;
}
if (commit_id[0] == 0)
return NULL;
return seaf_branch_new (name, repo_id, commit_id);
}
SeafBranch *
seaf_branch_manager_get_branch (SeafBranchManager *mgr,
const char *repo_id,
const char *name)
{
SeafBranch *branch;
/* "fetch_head" maps to "master" on server. */
if (strcmp (name, "fetch_head") == 0) {
branch = real_get_branch (mgr, repo_id, "master");
return branch;
} else {
return real_get_branch (mgr, repo_id, name);
}
}
#endif /* not SEAFILE_SERVER */
gboolean
seaf_branch_manager_branch_exists (SeafBranchManager *mgr,
const char *repo_id,
const char *name)
{
#ifndef SEAFILE_SERVER
char *sql;
gboolean ret;
pthread_mutex_lock (&mgr->priv->db_lock);
sql = sqlite3_mprintf ("SELECT name FROM Branch WHERE name = %Q "
"AND repo_id='%s'", name, repo_id);
ret = sqlite_check_for_existence (mgr->priv->db, sql);
sqlite3_free (sql);
pthread_mutex_unlock (&mgr->priv->db_lock);
return ret;
#else
gboolean db_err = FALSE;
return seaf_db_statement_exists (mgr->seaf->db,
"SELECT name FROM Branch WHERE name=? "
"AND repo_id=?", &db_err,
2, "string", name, "string", repo_id);
#endif
}
#ifndef SEAFILE_SERVER
GList *
seaf_branch_manager_get_branch_list (SeafBranchManager *mgr,
const char *repo_id)
{
sqlite3 *db = mgr->priv->db;
int result;
sqlite3_stmt *stmt;
char sql[256];
char *name;
char *commit_id;
GList *ret = NULL;
SeafBranch *branch;
snprintf (sql, 256, "SELECT name, commit_id FROM branch WHERE repo_id ='%s'",
repo_id);
pthread_mutex_lock (&mgr->priv->db_lock);
if ( !(stmt = sqlite_query_prepare(db, sql)) ) {
pthread_mutex_unlock (&mgr->priv->db_lock);
return NULL;
}
while (1) {
result = sqlite3_step (stmt);
if (result == SQLITE_ROW) {
name = (char *)sqlite3_column_text(stmt, 0);
commit_id = (char *)sqlite3_column_text(stmt, 1);
branch = seaf_branch_new (name, repo_id, commit_id);
ret = g_list_prepend (ret, branch);
}
if (result == SQLITE_DONE)
break;
if (result == SQLITE_ERROR) {
const gchar *str = sqlite3_errmsg (db);
seaf_warning ("Couldn't prepare query, error: %d->'%s'\n",
result, str ? str : "no error given");
sqlite3_finalize (stmt);
seaf_branch_list_free (ret);
pthread_mutex_unlock (&mgr->priv->db_lock);
return NULL;
}
}
sqlite3_finalize (stmt);
pthread_mutex_unlock (&mgr->priv->db_lock);
return g_list_reverse(ret);
}
#else
static gboolean
get_branches (SeafDBRow *row, void *vplist)
{
GList **plist = vplist;
const char *commit_id;
const char *name;
const char *repo_id;
SeafBranch *branch;
name = seaf_db_row_get_column_text (row, 0);
repo_id = seaf_db_row_get_column_text (row, 1);
commit_id = seaf_db_row_get_column_text (row, 2);
branch = seaf_branch_new (name, repo_id, commit_id);
*plist = g_list_prepend (*plist, branch);
return TRUE;
}
GList *
seaf_branch_manager_get_branch_list (SeafBranchManager *mgr,
const char *repo_id)
{
GList *ret = NULL;
char *sql;
sql = "SELECT name, repo_id, commit_id FROM Branch WHERE repo_id=?";
if (seaf_db_statement_foreach_row (mgr->seaf->db, sql,
get_branches, &ret,
1, "string", repo_id) < 0) {
seaf_warning ("[branch mgr] DB error when get branch list.\n");
return NULL;
}
return ret;
}
#endif
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