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nix-store -l: Simplify implementation

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This commit is contained in:
Eelco Dolstra 2016-04-29 17:47:03 +02:00
parent 4dde0b0562
commit 83258225e6
1 changed files with 2 additions and 15 deletions
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17
src/nix-store/nix-store.cc
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@ -9,6 +9,7 @@
#include "util.hh"
#include "worker-protocol.hh"
#include "xmlgraph.hh"
#include "compression.hh"
#include <iostream>
#include <algorithm>
@ -502,21 +503,7 @@ static void opReadLog(Strings opFlags, Strings opArgs)
}
else if (pathExists(logBz2Path)) {
AutoCloseFD fd = open(logBz2Path.c_str(), O_RDONLY);
FILE * f = 0;
if (fd == -1 || (f = fdopen(fd.borrow(), "r")) == 0)
throw SysError(format("opening file ‘%1%’") % logBz2Path);
int err;
BZFILE * bz = BZ2_bzReadOpen(&err, f, 0, 0, 0, 0);
if (!bz) throw Error(format("cannot open bzip2 file ‘%1%’") % logBz2Path);
unsigned char buf[128 * 1024];
do {
int n = BZ2_bzRead(&err, bz, buf, sizeof(buf));
if (err != BZ_OK && err != BZ_STREAM_END)
throw Error(format("error reading bzip2 file ‘%1%’") % logBz2Path);
writeFull(STDOUT_FILENO, buf, n);
} while (err != BZ_STREAM_END);
BZ2_bzReadClose(&err, bz);
std::cout << *decompress("bzip2", make_ref<std::string>(readFile(logBz2Path)));
found = true;
break;
}