Contributor Covenant Code of Conduct

  Note: In the sequel, "project" refers to GNU Guix, and "project
  maintainer(s)" refers to maintainer(s) of GNU Guix.

Our Pledge

In the interest of fostering an open and welcoming environment, we as
contributors and maintainers pledge to making participation in our project and
our community a harassment-free experience for everyone, regardless of age, body
size, disability, ethnicity, gender identity and expression, level of experience,
education, socio-economic status, nationality, personal appearance, race,
religion, or sexual identity and orientation.

Our Standards

Examples of behavior that contributes to creating a positive environment
include:


* Using welcoming and inclusive language
* Being respectful of differing viewpoints and experiences
* Gracefully accepting constructive criticism
* Focusing on what is best for the community
* Showing empathy towards other community members


Examples of unacceptable behavior by participants include:


* The use of sexualized language or imagery and unwelcome sexual attention or
advances
* Trolling, insulting/derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others’ private information, such as a physical or electronic
address, without explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting


Our Responsibilities

Project maintainers are responsible for clarifying the standards of acceptable
behavior and are expected to take appropriate and fair corrective action in
response to any instances of unacceptable behavior.

Project maintainers have the right and responsibility to remove, edit, or
reject comments, commits, code, wiki edits, issues, and other contributions
that are not aligned to this Code of Conduct, or to ban temporarily or
permanently any contributor for other behaviors that they deem inappropriate,
threatening, offensive, or harmf<pre>
#pragma once

#include &quot;sqlite.hh&quot;
#include &lt;string&gt;
#include &lt;unordered_set&gt;

#include &quot;pathlocks.hh&quot;
#include &quot;store-api.hh&quot;
#include &quot;util.hh&quot;


namespace nix {


/* Nix store and database schema version.  Version 1 (or 0) was Nix &lt;=
   0.7.  Version 2 was Nix 0.8 and 0.9.  Version 3 is Nix 0.10.
   Version 4 is Nix 0.11.  Version 5 is Nix 0.12-0.16.  Version 6 is
   Nix 1.0.  Version 7 is Nix 1.3.  Guix has always used version 7.  */
const int nixSchemaVersion = 7;


extern string drvsLogDir;


struct Derivation;


struct OptimiseStats
{
    unsigned long filesLinked;
    unsigned long long bytesFreed;
    unsigned long long blocksFreed;
    OptimiseStats()
    {
        filesLinked = 0;
        bytesFreed = blocksFreed = 0;
    }
};


class LocalStore : public StoreAPI
{
private:
    /* The currently running substituter or empty.  */
    std::shared_ptr&lt;Agent&gt; runningSubstituter;

    /* Ensure the substituter is running and return it.  */
    std::shared_ptr&lt;Agent&gt; substituter();

    Path linksDir;

public:

    /* Initialise the local store, upgrading the schema if
       necessary. */
    LocalStore(bool reserveSpace = true);

    ~LocalStore();

    /* Implementations of abstract store API methods.