#pragma once

#include "types.hh"
#include "serialise.hh"


namespace nix {


/* dumpPath creates a Nix archive of the specified path.  The format
   is as follows:

   IF path points to a REGULAR FILE:
     dump(path) = attrs(
       [ ("type", "regular")
       , ("contents", contents(path))
       ])

   IF path points to a DIRECTORY:
     dump(path) = attrs(
       [ ("type", "directory")
       , ("entries", concat(map(f, sort(entries(path)))))
       ])
       where f(fn) = attrs(
         [ ("name", fn)
         , ("file", dump(path + "/" + fn))
         ])

   where:

     attrs(as) = concat(map(attr, as)) + encN(0)
     attrs((a, b)) = encS(a) + encS(b)

     encS(s) = encN(len(s)) + s + (padding until next 64-bit boundary)

     encN(n) = 64-bit little-endian encoding of n.

     contents(path) = the contents of a regular file.

     sort(strings) = lexicographic sort by 8-bit value (strcmp).

     entries(path) = the entries of a directory, without `.' and
     `..'.

     `+' denotes string concatenation. */

struct PathFilter
{
    virtual ~PathFilter() { }
    virtual bool operator () (const Path & path) { return true; }
};

extern PathFilter defaultPathFilter;

void dumpPath(const Path & path, Sink & sink,
    PathFilter & filter = defaultPathFilter);

struct ParseSink
{
    virtual void createDirectory(const Path & path) { };

    virtual void createRegularFile(const Path & path) { };
    virtual void isExecutable() { };
    virtual void preallocateContents(unsigned long long size) { };
    virtual void receiveContents(unsigned char * data, unsigned int len) { };

    virtual void createSymlink(const Path & path, const string & target) { };
};

void parseDump(ParseSink & sink, Source & source);

void restorePath(const Path & path, Source & source);

}
ue='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=b3492964c2573993b65c20f6e7d16c29cfd6f4f5'>root</a>/<a href='/guix/log/tests?id=b3492964c2573993b65c20f6e7d16c29cfd6f4f5'>tests</a>/<a href='/guix/log/tests/hexpm.scm?id=b3492964c2573993b65c20f6e7d16c29cfd6f4f5'>hexpm.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/hexpm.scm?id=b3492964c2573993b65c20f6e7d16c29cfd6f4f5&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-05-31 23:50:06 +0200'>2023-05-31</span></td><td><a href='/guix/commit/tests/hexpm.scm?id=654fcf9971bb01389d577be07c6ec0f68940c743'>tests: Use quasiquoted 'match' patterns for package sexps.</a><span class='msg-avail'>...<span class='msg-tooltip'>Turns out it's easier to read.

* tests/cpan.scm ("cpan-&gt;guix-package"): Use a quasiquoted pattern.
* tests/elpa.scm (eval-test-with-elpa): Likewise.
* tests/gem.scm ("gem-&gt;guix-package")
("gem-&gt;guix-package with a specific version")
("gem-recursive-import")
("gem-recursive-import with a specific version"): Likewise.
* tests/hexpm.scm ("hexpm-recursive-import"): Likewise.
* tests/opam.scm ("opam-&gt;guix-package"): Likewise.
* tests/pypi.scm ("pypi-&gt;guix-package, no wheel")
("pypi-&gt;guix-package, wheels")
("pypi-&gt;guix-package, no usable requirement file.")
("pypi-&gt;guix-package, package name contains \"-\" followed by digits"):
Likewise.
* tests/texlive.scm ("texlive-&gt;guix-package"): Likewise.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-06-15 10:18:34 +0200'>2022-06-15</span></td><td><a href='/guix/commit/tests/hexpm.scm?id=0d9f1f15cb0ce1e71943bff9a68e6839d0eae497'>import: Add hex.pm importer.</a><span class='msg-avail'>...<span class='msg-tooltip'>hex.pm is a package repository for Erlang and Elixir.

* guix/scripts/import.scm (importers): Add "hexpm".
* guix/scripts/import/hexpm.scm, guix/import/hexpm.scm,
  guix/hexpm-download.scm: New files.
* guix/import/utils.scm (source-spec-&gt;object): Add "hexpm-fetch" to list of
  fetch methods.
* guix/upstream.scm (package-update/hexpm-fetch): New function.
  (%method-updates) Add it.
* Makefile.am: Add them.
</span></span></td><td>Hartmut Goebel</td></tr>