refactor(3p/nix): Anchor local includes at src/

Previously all includes were anchored in one global mess of header
files. This moves the includes into filesystem "namespaces" (if you
will) for each sub-package of Nix.

Note: This commit does not introduce the relevant build system changes.

third_party/nix/src/libutil/affinity.cc

@@ -1,9 +1,9 @@
-#include "affinity.hh"
+#include "libutil/affinity.hh"
 
 #include <glog/logging.h>
 
-#include "types.hh"
-#include "util.hh"
+#include "libutil/types.hh"
+#include "libutil/util.hh"
 
 #if __linux__
 #include <sched.h>

third_party/nix/src/libutil/archive.cc

@@ -1,4 +1,4 @@
-#include "archive.hh"
+#include "libutil/archive.hh"
 
 #include <algorithm>
 #include <cerrno>
@@ -7,14 +7,14 @@
 
 #include <dirent.h>
 #include <fcntl.h>
+#include <glog/logging.h>
 #include <strings.h>  // for strcasecmp
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
 
-#include "config.hh"
-#include "glog/logging.h"
-#include "util.hh"
+#include "libutil/config.hh"
+#include "libutil/util.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/archive.hh

@@ -1,7 +1,7 @@
 #pragma once
 
-#include "serialise.hh"
-#include "types.hh"
+#include "libutil/serialise.hh"
+#include "libutil/types.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/args.cc

@@ -1,6 +1,6 @@
-#include "args.hh"
+#include "libutil/args.hh"
 
-#include "hash.hh"
+#include "libutil/hash.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/args.hh

@@ -6,7 +6,7 @@
 
 #include <absl/strings/numbers.h>
 
-#include "util.hh"
+#include "libutil/util.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/compression.cc

@@ -1,4 +1,4 @@
-#include "compression.hh"
+#include "libutil/compression.hh"
 
 #include <cstdio>
 #include <cstring>
@@ -7,11 +7,11 @@
 #include <brotli/decode.h>
 #include <brotli/encode.h>
 #include <bzlib.h>
+#include <glog/logging.h>
 #include <lzma.h>
 
-#include "finally.hh"
-#include "glog/logging.h"
-#include "util.hh"
+#include "libutil/finally.hh"
+#include "libutil/util.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/compression.hh

@@ -2,9 +2,9 @@
 
 #include <string>
 
-#include "ref.hh"
-#include "serialise.hh"
-#include "types.hh"
+#include "libutil/ref.hh"
+#include "libutil/serialise.hh"
+#include "libutil/types.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/config.cc

@@ -1,4 +1,4 @@
-#include "config.hh"
+#include "libutil/config.hh"
 
 #include <string>
 #include <utility>
@@ -9,8 +9,8 @@
 #include <absl/strings/string_view.h>
 #include <glog/logging.h>
 
-#include "args.hh"
-#include "json.hh"
+#include "libutil/args.hh"
+#include "libutil/json.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/config.hh

@@ -1,7 +1,7 @@
 #include <map>
 #include <set>
 
-#include "types.hh"
+#include "libutil/types.hh"
 
 #pragma once
 

third_party/nix/src/libutil/hash.cc

@@ -1,4 +1,4 @@
-#include "hash.hh"
+#include "libutil/hash.hh"
 
 #include <cstring>
 #include <iostream>
@@ -9,9 +9,9 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 
-#include "archive.hh"
-#include "istringstream_nocopy.hh"
-#include "util.hh"
+#include "libutil/archive.hh"
+#include "libutil/istringstream_nocopy.hh"
+#include "libutil/util.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/hash.hh

@@ -1,7 +1,7 @@
 #pragma once
 
-#include "serialise.hh"
-#include "types.hh"
+#include "libutil/serialise.hh"
+#include "libutil/types.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/json.cc

@@ -1,4 +1,4 @@
-#include "json.hh"
+#include "libutil/json.hh"
 
 #include <cstring>
 #include <iomanip>

third_party/nix/src/libutil/pool.hh

@@ -6,8 +6,8 @@
 #include <list>
 #include <memory>
 
-#include "ref.hh"
-#include "sync.hh"
+#include "libutil/ref.hh"
+#include "libutil/sync.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/serialise.cc

@@ -1,4 +1,4 @@
-#include "serialise.hh"
+#include "libutil/serialise.hh"
 
 #include <boost/coroutine2/coroutine.hpp>
 #include <cerrno>
@@ -6,8 +6,9 @@
 #include <memory>
 #include <utility>
 
-#include "glog/logging.h"
-#include "util.hh"
+#include <glog/logging.h>
+
+#include "libutil/util.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/serialise.hh

@@ -2,8 +2,8 @@
 
 #include <memory>
 
-#include "types.hh"
-#include "util.hh"
+#include "libutil/types.hh"
+#include "libutil/util.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/thread-pool.cc

@@ -1,7 +1,8 @@
-#include "thread-pool.hh"
+#include "libutil/thread-pool.hh"
 
-#include "affinity.hh"
-#include "glog/logging.h"
+#include <glog/logging.h>
+
+#include "libutil/affinity.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/thread-pool.hh

@@ -6,8 +6,8 @@
 #include <queue>
 #include <thread>
 
-#include "sync.hh"
-#include "util.hh"
+#include "libutil/sync.hh"
+#include "libutil/util.hh"
 
 namespace nix {
 

third_party/nix/src/libutil/types.hh

@@ -7,7 +7,7 @@
 #include <set>
 #include <string>
 
-#include "ref.hh"
+#include "libutil/ref.hh"
 
 /* Before 4.7, gcc's std::exception uses empty throw() specifiers for
  * its (virtual) destructor and what() in c++11 mode, in violation of spec

third_party/nix/src/libutil/util.cc

@@ -1,4 +1,4 @@
-#include "util.hh"
+#include "libutil/util.hh"
 
 #include <cctype>
 #include <cerrno>
@@ -15,6 +15,7 @@
 #include <absl/strings/str_split.h>
 #include <absl/strings/string_view.h>
 #include <fcntl.h>
+#include <glog/logging.h>
 #include <grp.h>
 #include <pwd.h>
 #include <sys/ioctl.h>
@@ -23,12 +24,12 @@
 #include <sys/wait.h>
 #include <unistd.h>
 
-#include "affinity.hh"
-#include "finally.hh"
-#include "glog/logging.h"
-#include "lazy.hh"
-#include "serialise.hh"
-#include "sync.hh"
+#include "libutil/affinity.hh"
+#include "libutil/finally.hh"
+#include "libutil/lazy.hh"
+#include "libutil/serialise.hh"
+#include "libutil/sync.hh"
+#include "nix_config.h"
 
 namespace nix {
 

third_party/nix/src/libutil/util.hh

@@ -15,7 +15,7 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-#include "types.hh"
+#include "libutil/types.hh"
 
 #ifndef HAVE_STRUCT_DIRENT_D_TYPE
 #define DT_UNKNOWN 0

third_party/nix/src/libutil/xml-writer.cc

@@ -1,4 +1,4 @@
-#include "xml-writer.hh"
+#include "libutil/xml-writer.hh"
 
 #include <cassert>