#include "sqlite.hh"
#include "util.hh"

#include <sqlite3.h>

namespace nix {

[[noreturn]] void throwSQLiteError(sqlite3 * db, const format & f)
{
    int err = sqlite3_errcode(db);
    if (err == SQLITE_BUSY || err == SQLITE_PROTOCOL) {
        if (err == SQLITE_PROTOCOL)
            printMsg(lvlError, "warning: SQLite database is busy (SQLITE_PROTOCOL)");
        else {
            static bool warned = false;
            if (!warned) {
                printMsg(lvlError, "warning: SQLite database is busy");
                warned = true;
            }
        }
        /* Sleep for a while since retrying the transaction right away
           is likely to fail again. */
#if HAVE_NANOSLEEP
        struct timespec t;
        t.tv_sec = 0;
        t.tv_nsec = (random() % 100) * 1000 * 1000; /* <= 0.1s */
        nanosleep(&t, 0);
#else
        sleep(1);
#endif
        throw SQLiteBusy(format("%1%: %2%") % f.str() % sqlite3_errmsg(db));
    }
    else
        throw SQLiteError(format("%1%: %2%") % f.str() % sqlite3_errmsg(db));
}

SQLite::~SQLite()
{
    try {
        if (db && sqlite3_close(db) != SQLITE_OK)
            throwSQLiteError(db, "closing database");
    } catch (...) {
        ignoreException();
    }
}

void SQLiteStmt::create(sqlite3 * db, const string & s)
{
    checkInterrupt();
    assert(!stmt);
    if (sqlite3_prepare_v2(db, s.c_str(), -1, &stmt, 0) != SQLITE_OK)
        throwSQLiteError(db, "creating statement");
    this->db = db;
}

SQLiteStmt::~SQLiteStmt()
{
    try {
        if (stmt && sqlite3_finalize(stmt) != SQLITE_OK)
            throwSQLiteError(db, "finalizing statement");
    } catch (...) {
        ignoreException();
    }
}

SQLiteStmt::Use::Use(SQLiteStmt & stmt)
    : stmt(stmt)
{
    assert(stmt.stmt);
    /* Note: sqlite3_reset() returns the error code for the most
       recent call to sqlite3_step().  So ignore it. */
    sqlite3_reset(stmt);
}

SQLiteStmt::Use::~Use()
{
    sqlite3_reset(stmt);
}

SQLiteStmt::Use & SQLiteStmt::Use::operator () (const std::string & value, bool notNull)
{
    if (notNull) {
        if (sqlite3_bind_text(stmt, curArg++, value.c_str(), -1, SQLITE_TRANSIENT) != SQLITE_OK)
            throwSQLiteError(stmt.db, "binding argument");
    } else
        bind();
    return *this;
}

SQLiteStmt::Use & SQLiteStmt::Use::operator () (int64_t value, bool notNull)
{
    if (notNull) {
        if (sqlite3_bind_int64(stmt, curArg++, value) != SQLITE_OK)
            throwSQLiteError(stmt.db, "binding argument");
    } else
        bind();
    return *this;
}

SQLiteStmt::Use & SQLiteStmt::Use::bind()
{
    if (sqlite3_bind_null(stmt, curArg++) != SQLITE_OK)
        throwSQLiteError(stmt.db, "binding argument");
    return *this;
}

int SQLiteStmt::Use::step()
{
    return sqlite3_step(stmt);
}

void SQLiteStmt::Use::exec()
{
    int r = step();
    assert(r != SQLITE_ROW);
    if (r != SQLITE_DONE)
        throwSQLiteError(stmt.db, "executing SQLite statement");
}

bool SQLiteStmt::Use::next()
{
    int r = step();
    if (r != SQLITE_DONE && r != SQLITE_ROW)
        throwSQLiteError(stmt.db, "executing SQLite query");
    return r == SQLITE_ROW;
}

std::string SQLiteStmt::Use::getStr(int col)
{
    auto s = (const char *) sqlite3_column_text(stmt, col);
    assert(s);
    return s;
}

int64_t SQLiteStmt::Use::getInt(int col)
{
    // FIXME: detect nulls?
    return sqlite3_column_int64(stmt, col);
}

SQLiteTxn::SQLiteTxn(sqlite3 * db)
{
    this->db = db;
    if (sqlite3_exec(db, "begin;", 0, 0, 0) != SQLITE_OK)
        throwSQLiteError(db, "starting transaction");
    active = true;
}

void SQLiteTxn::commit()
{
    if (sqlite3_exec(db, "commit;", 0, 0, 0) != SQLITE_OK)
        throwSQLiteError(db, "committing transaction");
    active = false;
}

SQLiteTxn::~SQLiteTxn()
{
    try {
        if (active && sqlite3_exec(db, "rollback;", 0, 0, 0) != SQLITE_OK)
            throwSQLiteError(db, "aborting transaction");
    } catch (...) {
        ignoreException();
    }
}

}
ff0fa67b99'>pack: Add support for the deb format.</a></td><td>Maxim Cournoyer</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* .dir-locals.el (scheme-mode)[gexp-&gt;derivation]: Define indentation rule.
* guix/scripts/pack.scm (debian-archive): New procedure.
(%formats): Register the new deb format.
(show-formats): Add it to the usage string.
* tests/pack.scm (%ar-bootstrap): New variable.
(deb archive with symlinks): New test.
* doc/guix.texi (Invoking guix pack): Document it.
* NEWS: Add news entry.


</td></tr>
<tr class='logheader'><td><span title='2021-06-29 14:53:21 -0400'>2021-06-29</span></td><td class='logsubject'><a href='/guix/commit/tests/pack.scm?id=8108c266dc2fbc70602b2aa5c6887bf17bed16e8'>tests: pack: Fix compressor extension.</a></td><td>Maxim Cournoyer</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* tests/pack.scm (%gzip-compressor): Add the missing leading period to the
gzip compressor file extension.


</td></tr>
<tr class='logheader'><td><span title='2020-07-20 23:25:09 +0200'>2020-07-20</span></td><td class='logsubject'><a href='/guix/commit/tests/pack.scm?id=b3802495f607fd5e17c5acf0be2ee014036e2464'>pack: Build the store database under a UTF-8 locale.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
Fixes &lt;https://bugs.gnu.org/42389&gt;.
Reported by branjam4@gmail.com.

* guix/scripts/pack.scm (store-database)[build]: Add calls to 'setenv'
and 'setlocale'.
* tests/pack.scm ("self-contained-tarball + localstatedir, UTF-8 file
names"): New test.


</td></tr>
<tr class='logheader'><td><span title='2020-07-20 23:25:09 +0200'>2020-07-20</span></td><td class='logsubject'><a href='/guix/commit/tests/pack.scm?id=181e0dddd68dc58190bd4831ea5d1ecbd420d83a'>pack: 'self-contained-tarball' runs derivation in a UTF-8local.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* guix/scripts/pack.scm (self-contained-tarball)
[set-utf8-locale]: New variable.
[build]: Use it.
* tests/pack.scm ("self-contained-tarball"): Use a &lt;profile&gt; record
instead of 'profile-derivation'.


</td></tr>