mirror of
https://github.com/NixOS/nix.git
synced 2025-11-29 21:50:58 +01:00
4b313ceb9e
You can now write
fetchTree {
type = "github";
owner = "NixOS";
repo = "nixpkgs";
rev = "0f316e4d72daed659233817ffe52bf08e081b5de";
patches = [ ./thunderbird-1.patch ./thunderbird-2.patch ];
};
to apply a list of patches to a tree. These are applied lazily - the
patched tree is not materialized unless you do something that causes
the entire tree to be copied to the store (like 'src = fetchTree {
... }'). The equivalent of '-p1' is implied.
File additions/deletions/renames are not yet handled.
Issue #3920.
74 lines
1.5 KiB
C++
74 lines
1.5 KiB
C++
#pragma once
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#include "ref.hh"
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#include "types.hh"
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#include "archive.hh"
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namespace nix {
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struct InputAccessor
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{
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const size_t number;
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InputAccessor();
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virtual ~InputAccessor()
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{ }
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virtual std::string readFile(PathView path) = 0;
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virtual bool pathExists(PathView path) = 0;
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enum Type { tRegular, tSymlink, tDirectory, tMisc };
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struct Stat
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{
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Type type = tMisc;
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//uint64_t fileSize = 0; // regular files only
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bool isExecutable = false; // regular files only
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};
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virtual Stat lstat(PathView path) = 0;
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typedef std::optional<Type> DirEntry;
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typedef std::map<std::string, DirEntry> DirEntries;
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virtual DirEntries readDirectory(PathView path) = 0;
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virtual std::string readLink(PathView path) = 0;
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virtual void dumpPath(
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const Path & path,
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Sink & sink,
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PathFilter & filter = defaultPathFilter);
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};
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ref<InputAccessor> makeFSInputAccessor(
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const Path & root,
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std::optional<PathSet> && allowedPaths = {});
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struct MemoryInputAccessor : InputAccessor
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{
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virtual void addFile(PathView path, std::string && contents) = 0;
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};
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ref<MemoryInputAccessor> makeMemoryInputAccessor();
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ref<InputAccessor> makeZipInputAccessor(PathView path);
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ref<InputAccessor> makePatchingInputAccessor(
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ref<InputAccessor> next,
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const std::vector<std::string> & patches);
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struct SourcePath
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{
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ref<InputAccessor> accessor;
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Path path;
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std::string_view baseName() const;
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};
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std::ostream & operator << (std::ostream & str, const SourcePath & path);
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}
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