X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/46cddb8c1a393cc7d03fbd897f2504ae9f47179d..769e9f3ea1cbe67d3b98e6db6c956abde2384868:/methods/rred.cc

diff --git a/methods/rred.cc b/methods/rred.cc
index 351c1ebf9..51af37557 100644
--- a/methods/rred.cc
+++ b/methods/rred.cc
@@ -7,9 +7,9 @@
 
 #include <config.h>
 
+#include <apt-pkg/init.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/error.h>
-#include <apt-pkg/acquire-method.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/hashes.h>
 #include <apt-pkg/configuration.h>
@@ -490,7 +490,11 @@ class Patch {
       for (ch = filechanges.rbegin(); ch != filechanges.rend(); ++ch) {
 	 std::list<struct Change>::reverse_iterator mg_i, mg_e = ch;
 	 while (ch->del_cnt == 0 && ch->offset == 0)
+	 {
 	    ++ch;
+	    if (unlikely(ch == filechanges.rend()))
+	       return;
+	 }
 	 line -= ch->del_cnt;
 	 std::string buf;
 	 if (ch->add_cnt > 0) {
@@ -530,6 +534,7 @@ class Patch {
 	 dump_mem(out, ch->add, ch->add_len, hash);
       }
       dump_rest(out, in, hash);
+      out.Flush();
    }
 };
 
@@ -642,7 +647,7 @@ class RredMethod : public aptMethod {
 	    std::cerr << "FAILED to open inp " << Path << std::endl;
 	    return _error->Error("Failed to open inp %s", Path.c_str());
 	 }
-	 if (out.Open(Itm->DestFile, FileFd::WriteOnly | FileFd::Create, FileFd::Extension) == false)
+	 if (out.Open(Itm->DestFile, FileFd::WriteOnly | FileFd::Create | FileFd::BufferedWrite, FileFd::Extension) == false)
 	 {
 	    std::cerr << "FAILED to open out " << Itm->DestFile << std::endl;
 	    return _error->Error("Failed to open out %s", Itm->DestFile.c_str());
@@ -654,6 +659,11 @@ class RredMethod : public aptMethod {
 	 out.Close();
 	 inp.Close();
 
+	 if (_error->PendingError() == true) {
+	    std::cerr << "FAILED to read or write files" << std::endl;
+	    return false;
+	 }
+
 	 if (Debug == true) {
 	    std::clog << "rred: finished file patching of " << Path  << "." << std::endl;
 	 }
@@ -661,7 +671,7 @@ class RredMethod : public aptMethod {
 	 struct stat bufbase, bufpatch;
 	 if (stat(Path.c_str(), &bufbase) != 0 ||
 	       stat(patch_name.c_str(), &bufpatch) != 0)
-	    return _error->Errno("stat", _("Failed to stat"));
+	    return _error->Errno("stat", _("Failed to stat %s"), Path.c_str());
 
 	 struct timeval times[2];
 	 times[0].tv_sec = bufbase.st_atime;
@@ -671,7 +681,7 @@ class RredMethod : public aptMethod {
 	    return _error->Errno("utimes",_("Failed to set modification time"));
 
 	 if (stat(Itm->DestFile.c_str(), &bufbase) != 0)
-	    return _error->Errno("stat", _("Failed to stat"));
+	    return _error->Errno("stat", _("Failed to stat %s"), Itm->DestFile.c_str());
 
 	 Res.LastModified = bufbase.st_mtime;
 	 Res.Size = bufbase.st_size;
@@ -682,7 +692,7 @@ class RredMethod : public aptMethod {
       }
 
    public:
-      RredMethod() : aptMethod("rred", "2.0",SingleInstance | SendConfig), Debug(false) {}
+      RredMethod() : aptMethod("rred", "2.0", SendConfig), Debug(false) {}
 };
 
 int main(int argc, char **argv)
@@ -693,12 +703,13 @@ int main(int argc, char **argv)
    Patch patch;
 
    if (argc <= 1) {
-      RredMethod Mth;
-      return Mth.Run();
+      return RredMethod().Run();
    }
 
    // Usage: rred -t input output diff ...
    if (argc > 1 && strcmp(argv[1], "-t") == 0) {
+      // Read config files so we see compressors.
+      pkgInitConfig(*_config);
       just_diff = false;
       test = true;
       i = 4;
@@ -726,17 +737,20 @@ int main(int argc, char **argv)
       FileFd out, inp;
       std::cerr << "Patching " << argv[2] << " into " << argv[3] << "\n";
       inp.Open(argv[2], FileFd::ReadOnly,FileFd::Extension);
-      out.Open(argv[3], FileFd::WriteOnly | FileFd::Create, FileFd::Extension);
+      out.Open(argv[3], FileFd::WriteOnly | FileFd::Create | FileFd::BufferedWrite, FileFd::Extension);
       patch.apply_against_file(out, inp);
+      out.Close();
    } else if (just_diff) {
       FileFd out;
       out.OpenDescriptor(STDOUT_FILENO, FileFd::WriteOnly | FileFd::Create);
       patch.write_diff(out);
+      out.Close();
    } else {
       FileFd out, inp;
-      out.OpenDescriptor(STDOUT_FILENO, FileFd::WriteOnly | FileFd::Create);
+      out.OpenDescriptor(STDOUT_FILENO, FileFd::WriteOnly | FileFd::Create | FileFd::BufferedWrite);
       inp.OpenDescriptor(STDIN_FILENO, FileFd::ReadOnly);
       patch.apply_against_file(out, inp);
+      out.Close();
    }
    return 0;
 }