Eelco Dolstra
8918bae098
Also, fetchGit now runs in O(1) memory since we pipe the output of 'git archive' directly into unpackTarball() (rather than first reading it all into memory).
35 lines
989 B
C++
35 lines
989 B
C++
#include "rust-ffi.hh"
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#include "compression.hh"
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extern "C" {
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rust::CBox2<rust::Result<std::tuple<>>> unpack_tarfile(rust::Source source, rust::StringSlice dest_dir);
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}
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namespace nix {
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void unpackTarfile(Source & source, const Path & destDir)
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{
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unpack_tarfile(source, destDir).use()->unwrap();
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}
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void unpackTarfile(const Path & tarFile, const Path & destDir,
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std::optional<std::string> baseName)
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{
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if (!baseName) baseName = baseNameOf(tarFile);
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auto source = sinkToSource([&](Sink & sink) {
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// FIXME: look at first few bytes to determine compression type.
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auto decompressor =
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// FIXME: add .gz support
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hasSuffix(*baseName, ".bz2") ? makeDecompressionSink("bzip2", sink) :
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hasSuffix(*baseName, ".xz") ? makeDecompressionSink("xz", sink) :
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makeDecompressionSink("none", sink);
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readFile(tarFile, *decompressor);
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decompressor->finish();
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});
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unpackTarfile(*source, destDir);
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}
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}
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