chore(3p/nix): unvendor tvix 0.1 r/4098

Nothing is using this now, and we'll likely never pick this up again,
but we learned a lot in the process.

Every now and then this breaks in some bizarre way on channel bumps
and it's just a waste of time to maintain that.

Change-Id: Idcf2f5acd4ca7070ce18d7149cbfc0d967dc0a44
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5632
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Autosubmit: tazjin <tazjin@tvl.su>

1 files changed, 0 insertions, 109 deletions

diff --git a/third_party/nix/src/libstore/sqlite.hh b/third_party/nix/src/libstore/sqlite.hh
deleted file mode 100644
index cad78aed45be..000000000000
--- a/third_party/nix/src/libstore/sqlite.hh
+++ /dev/null
@@ -1,109 +0,0 @@
-#pragma once
-
-#include <functional>
-#include <string>
-
-#include "libutil/types.hh"
-
-class sqlite3;
-class sqlite3_stmt;
-
-namespace nix {
-
-/* RAII wrapper to close a SQLite database automatically. */
-struct SQLite {
-  sqlite3* db = 0;
-  SQLite() {}
-  SQLite(const Path& path);
-  SQLite(const SQLite& from) = delete;
-  SQLite& operator=(const SQLite& from) = delete;
-  SQLite& operator=(SQLite&& from) {
-    db = from.db;
-    from.db = 0;
-    return *this;
-  }
-  ~SQLite();
-  operator sqlite3*() { return db; }
-
-  void exec(const std::string& stmt);
-};
-
-/* RAII wrapper to create and destroy SQLite prepared statements. */
-struct SQLiteStmt {
-  sqlite3* db = 0;
-  sqlite3_stmt* stmt = 0;
-  std::string sql;
-  SQLiteStmt() {}
-  SQLiteStmt(sqlite3* db, const std::string& sql) { create(db, sql); }
-  void create(sqlite3* db, const std::string& s);
-  ~SQLiteStmt();
-  operator sqlite3_stmt*() { return stmt; }
-
-  /* Helper for binding / executing statements. */
-  class Use {
-    friend struct SQLiteStmt;
-
-   private:
-    SQLiteStmt& stmt;
-    int curArg = 1;
-    Use(SQLiteStmt& stmt);
-
-   public:
-    ~Use();
-
-    /* Bind the next parameter. */
-    Use& operator()(const std::string& value, bool notNull = true);
-    Use& operator()(int64_t value, bool notNull = true);
-    Use& bind();  // null
-
-    int step();
-
-    /* Execute a statement that does not return rows. */
-    void exec();
-
-    /* For statements that return 0 or more rows. Returns true iff
-       a row is available. */
-    bool next();
-
-    std::string getStr(int col);
-    int64_t getInt(int col);
-    bool isNull(int col);
-  };
-
-  Use use() { return Use(*this); }
-};
-
-/* RAII helper that ensures transactions are aborted unless explicitly
-   committed. */
-struct SQLiteTxn {
-  bool active = false;
-  sqlite3* db;
-
-  SQLiteTxn(sqlite3* db);
-
-  void commit();
-
-  ~SQLiteTxn();
-};
-
-MakeError(SQLiteError, Error);
-MakeError(SQLiteBusy, SQLiteError);
-
-[[noreturn]] void throwSQLiteError(sqlite3* db, const FormatOrString& fs);
-
-void handleSQLiteBusy(const SQLiteBusy& e);
-
-/* Convenience function for retrying a SQLite transaction when the
-   database is busy. */
-template <typename T>
-T retrySQLite(std::function<T()> fun) {
-  while (true) {
-    try {
-      return fun();
-    } catch (SQLiteBusy& e) {
-      handleSQLiteBusy(e);
-    }
-  }
-}
-
-}  // namespace nix