v2.12: C Implementation of Archive Push

IMPORTANT NOTE: The new TLS/SSL implementation forbids dots in S3 bucket names per RFC-2818. This security fix is required for compliant hostname verification.

Bug Fixes:

* Fix issues when a path option is / terminated. (Reported by Marc Cousin.)
* Fix issues when log-level-file=off is set for the archive-get command. (Reported by Brad Nicholson.)
* Fix C code to recognize host:port option format like Perl does. (Reported by Kyle Nevins.)
* Fix issues with remote/local command logging options.

Improvements:

* The archive-push command is implemented entirely in C.
* Increase process-max limit to 999. (Suggested by Rakshitha-BR.)
* Improve error message when an S3 bucket name contains dots.

Documentation Improvements:

* Clarify that S3-compatible object stores are supported. (Suggested by Magnus Hagander.)

test/code-count/file-type.yaml

@@ -151,10 +151,6 @@ doc/xml/user-guide.xml:
   class: doc/source
   type: xml
 
-lib/pgBackRest/Archive/Base.pm:
-  class: core
-  type: perl
-
 lib/pgBackRest/Archive/Common.pm:
   class: core
   type: perl
@@ -167,18 +163,6 @@ lib/pgBackRest/Archive/Info.pm:
   class: core
   type: perl
 
-lib/pgBackRest/Archive/Push/Async.pm:
-  class: core
-  type: perl
-
-lib/pgBackRest/Archive/Push/File.pm:
-  class: core
-  type: perl
-
-lib/pgBackRest/Archive/Push/Push.pm:
-  class: core
-  type: perl
-
 lib/pgBackRest/Backup/Backup.pm:
   class: core
   type: perl
@@ -539,6 +523,22 @@ src/command/archive/get/protocol.h:
   class: core
   type: c/h
 
+src/command/archive/push/file.c:
+  class: core
+  type: c
+
+src/command/archive/push/file.h:
+  class: core
+  type: c/h
+
+src/command/archive/push/protocol.c:
+  class: core
+  type: c
+
+src/command/archive/push/protocol.h:
+  class: core
+  type: c/h
+
 src/command/archive/push/push.c:
   class: core
   type: c
@@ -1259,6 +1259,14 @@ src/protocol/server.h:
   class: core
   type: c/h
 
+src/storage/driver/cifs/storage.c:
+  class: core
+  type: c
+
+src/storage/driver/cifs/storage.h:
+  class: core
+  type: c/h
+
 src/storage/driver/posix/common.c:
   class: core
   type: c
@@ -1299,6 +1307,14 @@ src/storage/driver/remote/fileRead.h:
   class: core
   type: c/h
 
+src/storage/driver/remote/fileWrite.c:
+  class: core
+  type: c
+
+src/storage/driver/remote/fileWrite.h:
+  class: core
+  type: c/h
+
 src/storage/driver/remote/protocol.c:
   class: core
   type: c
@@ -1323,6 +1339,14 @@ src/storage/driver/s3/fileRead.h:
   class: core
   type: c/h
 
+src/storage/driver/s3/fileWrite.c:
+  class: core
+  type: c
+
+src/storage/driver/s3/fileWrite.h:
+  class: core
+  type: c/h
+
 src/storage/driver/s3/storage.c:
   class: core
   type: c
@@ -1507,10 +1531,6 @@ test/lib/pgBackRestTest/Module/Command/CommandArchiveGetPerlTest.pm:
   class: test/module
   type: perl
 
-test/lib/pgBackRestTest/Module/Command/CommandArchivePushPerlTest.pm:
-  class: test/module
-  type: perl
-
 test/lib/pgBackRestTest/Module/Common/CommonEncodePerlTest.pm:
   class: test/module
   type: perl
@@ -1895,6 +1915,10 @@ test/src/module/protocol/protocolTest.c:
   class: test/module
   type: c
 
+test/src/module/storage/cifsTest.c:
+  class: test/module
+  type: c
+
 test/src/module/storage/posixTest.c:
   class: test/module
   type: c