[cmake-developers] Unix makefile: concurrent build configurations

2016-08-18 Thread Steve Lorimer
Hello all

New to this list, so apologies if it's been discussed before.

I'd like to know why it's not possible to have both debug and release mode
builds configured at the same time for Unix makefiles?

I am aware that some generators (eg VisualStudio) do allow this behaviour.
Why can I not have the same behaviour with Unix makefiles?

TIA
Steve
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[cmake-developers] Subject: [PATCH v2] cmFileCommand: Download continuation support

2016-08-18 Thread Titov Denis
This patch introduces several options for the file(DOWNLOAD ...) command, which
would be useful in case of dealing with big files or unstable network
connections.

The added options are:

RETRY_COUNT  -- sets maximal amount of download restarts, default value: 1

RETRY_DELAY  -- sets delay before restarting download (in seconds),
default value: 0.0

RETRY_MAX_TIME  -- sets maximal time spent in downloading file
(in seconds), default value: infinity

RETRY_CONTINUE -- if set, makes cmake try to continue downloading of the
existing chunk, instead of discarding it and starting all over. This option is
not set by default

Notes:

The RETRY_CONTINUE option requires server-side support of http partial get
(content-range header).

Unfortunately, I haven't been able to properly test the RETRY_CONTINUE option,
as I didn't have access to the appropriate server. Any help in this area is
encouraged.
---
 Help/command/file.rst|  17 +++
 Source/cmFileCommand.cxx | 271 ---
 2 files changed, 205 insertions(+), 83 deletions(-)

diff --git a/Help/command/file.rst b/Help/command/file.rst
index 256d16d..f1095b7 100644
--- a/Help/command/file.rst
+++ b/Help/command/file.rst
@@ -240,6 +240,23 @@ Additional options to ``DOWNLOAD`` are:
 ``TLS_CAINFO ``
   Specify a custom Certificate Authority file for ``https://`` URLs.
 
+``RETRY_COUNT ``
+  Set maximal amount of download restarts, default value: 1
+
+``RETRY_DELAY ``
+  Set delay before restarting download, default value: 0.0
+
+``RETRY_MAX_TIME ``
+  Set maximal time spent in downloading file, default value: infinity
+
+``RETRY_CONTINUE``
+  If set, makes cmake try to continue downloading of the existing chunk,
+  instead of discarding it and starting all over. This option is not set 
+  by default.
+  
+  Note that this option requires server-side support of http partial get
+  (content-range header).
+
 For ``https://`` URLs CMake must be built with OpenSSL support.  ``TLS/SSL``
 certificates are not checked by default.  Set ``TLS_VERIFY`` to ``ON`` to
 check certificates and/or use ``EXPECTED_HASH`` to verify downloaded content.
diff --git a/Source/cmFileCommand.cxx b/Source/cmFileCommand.cxx
index 835b118..bbe8839 100644
--- a/Source/cmFileCommand.cxx
+++ b/Source/cmFileCommand.cxx
@@ -34,6 +34,9 @@
 // include sys/stat.h after sys/types.h
 #include 
 
+#include 
+#include 
+
 #include 
 #include 
 #include 
@@ -2481,6 +2484,11 @@ bool 
cmFileCommand::HandleDownloadCommand(std::vector const& args)
   std::string hashMatchMSG;
   CM_AUTO_PTR hash;
   bool showProgress = false;
+  int retryMaxCount = 1;
+  double retryDelayS = 0.0;
+  double retryMaxTimeS = DBL_MAX;
+  bool retryContinue = false;
+  cmsys::ofstream fout;
 
   while (i != args.end()) {
 if (*i == "TIMEOUT") {
@@ -2564,7 +2572,34 @@ bool 
cmFileCommand::HandleDownloadCommand(std::vector const& args)
 return false;
   }
   hashMatchMSG = algo + " hash";
+} else if (*i == "RETRY_COUNT") {
+  ++i;
+  if (i != args.end()) {
+retryMaxCount = atoi(i->c_str());
+  } else {
+this->SetError("DOWNLOAD missing count for RETRY_COUNT");
+return false;
+  }
+} else if (*i == "RETRY_DELAY") {
+  ++i;
+  if (i != args.end()) {
+retryDelayS = atof(i->c_str());
+  } else {
+this->SetError("DOWNLOAD missing time for RETRY_DELAY");
+return false;
+  }
+} else if (*i == "RETRY_MAX_TIME") {
+  ++i;
+  if (i != args.end()) {
+retryMaxTimeS = atof(i->c_str());
+  } else {
+this->SetError("DOWNLOAD missing time for RETRY_MAX_TIME");
+return false;
+  }
+} else if (*i == "RETRY_CONTINUE") {
+  retryContinue = true;
 }
+
 ++i;
   }
   // If file exists already, and caller specified an expected md5 or sha,
@@ -2599,110 +2634,171 @@ bool 
cmFileCommand::HandleDownloadCommand(std::vector const& args)
 return false;
   }
 
-  cmsys::ofstream fout(file.c_str(), std::ios::binary);
-  if (!fout) {
-this->SetError("DOWNLOAD cannot open file for write.");
-return false;
-  }
-
 #if defined(_WIN32) && defined(CMAKE_ENCODING_UTF8)
   url = fix_file_url_windows(url);
 #endif
 
+  cmFileCommandVectorOfChar chunkDebug;
+
   ::CURL* curl;
   ::curl_global_init(CURL_GLOBAL_DEFAULT);
-  curl = ::curl_easy_init();
-  if (!curl) {
-this->SetError("DOWNLOAD error initializing curl.");
-return false;
-  }
 
-  cURLEasyGuard g_curl(curl);
-  ::CURLcode res = ::curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
-  check_curl_result(res, "DOWNLOAD cannot set url: ");
+  ::CURLcode res;
+  int tries = 0;
+  double elapsed = 0.0;
+  time_t start, end;
+  while (tries < retryMaxCount && elapsed <= retryMaxTimeS) {
+++tries;
+time(&start);
+
+curl = ::curl_easy_init();
+if (!curl) {
+  this->SetError("DOWNLOAD error initializing curl.");
+  ::curl_global_cleanup();
+  return false;
+}
 
-  // enable 

[cmake-developers] variables for top level project version

2016-08-18 Thread Daniel Pfeifer
Hi!

The project() command currently sets some variables in both
PROJECT_ and _ form. So far good.

It also sets CMAKE_PROJECT_NAME to the top level project name.  This
is not documented.

It does not set any other variables of the form CMAKE_PROJECT_.
This would be useful for the version variables.

CPack.cmake initializes CPACK_PACKAGE_NAME with ${CMAKE_PROJECT_NAME},
but it initializes CPACK_PACKAGE_VERSION with "0.1.1".  It should
initialize all version variables with the values from the top level
project() command.

Cheers, Daniel
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Re: [cmake-developers] Dependency mechanism of CMake

2016-08-18 Thread Jean-Michaël Celerier
Hi,

Did you read this page ? The "Build Specification & Usage Requirements"
section clearly explains how it works imho.

https://cmake.org/cmake/help/v3.6/manual/cmake-buildsystem.7.html
and
https://cmake.org/cmake/help/v3.6/manual/cmake-buildsystem.7.html#build-specification-and-usage-requirements

Best
Jean-Michaël

On Thu, Aug 18, 2016 at 10:11 AM, Costean Adrian via cmake-developers <
cmake-developers@cmake.org> wrote:

> Hello CMake developers,
> I've been trying to figure out how CMake works ( so far no chance, the
> documentation of "behind the scenes of CMake" is kind of limited).
> I am interested in how CMake calculates the dependencies, if it does it
> efficient and correct.
> Could anyone brief me with a quick overview?
> Thanks and regards,
> Adrian C.
> --
>
> Powered by www.kitware.com
>
> Please keep messages on-topic and check the CMake FAQ at:
> http://www.cmake.org/Wiki/CMake_FAQ
>
> Kitware offers various services to support the CMake community. For more
> information on each offering, please visit:
>
> CMake Support: http://cmake.org/cmake/help/support.html
> CMake Consulting: http://cmake.org/cmake/help/consulting.html
> CMake Training Courses: http://cmake.org/cmake/help/training.html
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/cmake-developers
>
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[cmake-developers] Dependency mechanism of CMake

2016-08-18 Thread Costean Adrian via cmake-developers
Hello CMake developers,
I've been trying to figure out how CMake works ( so far no chance, the 
documentation of "behind the scenes of CMake" is kind of limited).
I am interested in how CMake calculates the dependencies, if it does it 
efficient and correct.
Could anyone brief me with a quick overview?
Thanks and regards, 
Adrian C.
-- 

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