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Cleanup database migration code

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This commit is contained in:
topjohnwu 2022-03-28 00:59:16 -07:00
parent 9e8218089b
commit 7e7ddeb9e2
1 changed files with 40 additions and 27 deletions
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67
native/jni/core/db.cpp
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@ -154,45 +154,58 @@ static char *open_and_init_db(sqlite3 *&db) {
sqlite3_close(db);
return strdup("Downgrading database is not supported");
}
if (ver < 3) {
// Policies
auto create_policy = [&] {
sqlite3_exec(db,
"CREATE TABLE IF NOT EXISTS policies "
"(uid INT, package_name TEXT, policy INT, until INT, "
"logging INT, notification INT, PRIMARY KEY(uid))",
nullptr, nullptr, &err);
err_ret(err);
// Settings
};
auto create_settings = [&] {
sqlite3_exec(db,
"CREATE TABLE IF NOT EXISTS settings "
"(key TEXT, value INT, PRIMARY KEY(key))",
nullptr, nullptr, &err);
err_ret(err);
ver = 3;
upgrade = true;
}
if (ver < 4) {
// Strings
};
auto create_strings = [&] {
sqlite3_exec(db,
"CREATE TABLE IF NOT EXISTS strings "
"(key TEXT, value TEXT, PRIMARY KEY(key))",
nullptr, nullptr, &err);
err_ret(err);
/* Directly jump to version 6 */
ver = 6;
upgrade = true;
}
if (ver < 7) {
};
auto create_denylist = [&] {
sqlite3_exec(db,
"CREATE TABLE IF NOT EXISTS hidelist "
"(package_name TEXT, process TEXT, PRIMARY KEY(package_name, process));",
"CREATE TABLE IF NOT EXISTS denylist "
"(package_name TEXT, process TEXT, PRIMARY KEY(package_name, process))",
nullptr, nullptr, &err);
};
// Database changelog:
//
// 0 - 6: DB stored in app private data. There are no longer any code in the project to
// migrate these data, so no need to take any of these versions into consideration.
// 7 : create table 'hidelist' (process TEXT, PRIMARY KEY(process))
// 8 : add new column (package_name TEXT) to table 'hidelist'
// 9 : rebuild table 'hidelist' to update primary key (PRIMARY KEY(package_name, process))
// 10: remove table 'logs'
// 11: remove table 'hidelist' and create table 'denylist' (same data structure)
if (/* 0, 1, 2, 3, 4, 5, 6 */ ver <= 6) {
create_policy();
err_ret(err);
/* Directly jump to version 9 */
ver = 9;
create_settings();
err_ret(err);
create_strings();
err_ret(err);
create_denylist();
err_ret(err);
// Directly jump to latest
ver = DB_VERSION;
upgrade = true;
}
if (ver < 8) {
if (ver == 7) {
sqlite3_exec(db,
"BEGIN TRANSACTION;"
"ALTER TABLE hidelist RENAME TO hidelist_tmp;"
@ -203,11 +216,11 @@ static char *open_and_init_db(sqlite3 *&db) {
"COMMIT;",
nullptr, nullptr, &err);
err_ret(err);
/* Directly jump to version 9 */
// Directly jump to version 9
ver = 9;
upgrade = true;
}
if (ver < 9) {
if (ver == 8) {
sqlite3_exec(db,
"BEGIN TRANSACTION;"
"ALTER TABLE hidelist RENAME TO hidelist_tmp;"
@ -221,20 +234,20 @@ static char *open_and_init_db(sqlite3 *&db) {
ver = 9;
upgrade = true;
}
if (ver < 10) {
if (ver == 9) {
sqlite3_exec(db, "DROP TABLE IF EXISTS logs", nullptr, nullptr, &err);
err_ret(err);
ver = 10;
upgrade = true;
}
if (ver < 11) {
if (ver == 10) {
sqlite3_exec(db,
"DROP TABLE IF EXISTS hidelist;"
"CREATE TABLE IF NOT EXISTS denylist "
"(package_name TEXT, process TEXT, PRIMARY KEY(package_name, process));"
"DELETE FROM settings WHERE key='magiskhide';",
nullptr, nullptr, &err);
err_ret(err);
create_denylist();
err_ret(err);
ver = 11;
upgrade = true;
}