[CMake] Don't download external projects again after calling "make clean"

Cedric Doucet cedric.doucet at inria.fr
Thu Apr 23 06:57:50 EDT 2015


Hello David, 

I am using CMake 3.2.2. 
I installed CMake from the sources because I use "modules" to manage my libraries. 
But it's ok now: I modified the installation so that to support https. 

Unfortunately, I still have a problem. :( 
Maybe you could help me! 

Here is my CMakeLists.txt: 

============= 

cmake_minimum_required (VERSION 2.6) 

project (example CXX) 

set(CMAKE_VERBOSE_MAKEFILE ON) 

include(ProcessorCount) 
ProcessorCount(N) 
if(NOT N EQUAL 0) 
set(CMAKE_BUILD_FLAGS -j${N}) 
endif() 

include(ExternalProject) 
set(EXTERNAL_DIR /home/cdoucet/Downloads) 
ExternalProject_Add(eigen 
PREFIX ${EXTERNAL_DIR}/eigen 
DOWNLOAD_DIR ${EXTERNAL_DIR}/eigen/download 
SOURCE_DIR ${EXTERNAL_DIR}/eigen/src 
BINARY_DIR ${EXTERNAL_DIR}/eigen/build 
INSTALL_DIR ${EXTERNAL_DIR}/eigen/install 
URL http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz 
URL_MD5 4d0d77e06fef87b4fcd2c9b72cc8dc55 
CONFIGURE_COMMAND cd <BINARY_DIR> && cmake -D CMAKE_INSTALL_PREFIX=$<INSTALL_DIR> <SOURCE_DIR> 
) 
============= 

And here is the error message: 

===================== 

/usr/local/bibliotheques/cmake/3.2.2/bin/cmake -H/home/cdoucet/Documents/exemples/cmake/external_project/eigen -B/home/cdoucet/Documents/exemples/cmake/external_project/eigen/build --check-build-system CMakeFiles/Makefile.cmake 0 
/usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E cmake_progress_start /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles/progress.marks 
make -f CMakeFiles/Makefile2 all 
make[1]: entrant dans le répertoire « /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build » 
make -f CMakeFiles/eigen.dir/build.make CMakeFiles/eigen.dir/depend 
make[2]: entrant dans le répertoire « /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build » 
cd /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build && /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E cmake_depends "Unix Makefiles" /home/cdoucet/Documents/exemples/cmake/external_project/eigen /home/cdoucet/Documents/exemples/cmake/external_project/eigen /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles/eigen.dir/DependInfo.cmake --color= 
make[2]: quittant le répertoire « /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build » 
make -f CMakeFiles/eigen.dir/build.make CMakeFiles/eigen.dir/build 
make[2]: entrant dans le répertoire « /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build » 
/usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E cmake_progress_report /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles 3 
[ 12%] Creating directories for 'eigen' 
/usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory /home/cdoucet/Downloads/eigen/src 
/usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory /home/cdoucet/Downloads/eigen/build 
/usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory /home/cdoucet/Downloads/eigen/install 
/usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory /home/cdoucet/Downloads/eigen/tmp 
/usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory /home/cdoucet/Downloads/eigen/src/eigen-stamp 
/usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory /home/cdoucet/Downloads/eigen/download 
/usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E touch /home/cdoucet/Downloads/eigen/src/eigen-stamp/eigen-mkdir 
/usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E cmake_progress_report /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles 4 
[ 25%] Performing download step (download, verify and extract) for 'eigen' 
cd /home/cdoucet/Downloads/eigen && /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -P /home/cdoucet/Downloads/eigen/src/eigen-stamp/download-eigen.cmake 
-- downloading... 
src='http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz' 
dst='/home/cdoucet/Downloads/eigen/download/3.2.4.tar.gz' 
timeout='none' 
-- [download 100% complete] 
-- [download 0% complete] 
-- [download 1% complete] 
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-- downloading... done 
cd /home/cdoucet/Downloads/eigen && /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -P /home/cdoucet/Downloads/eigen/src/eigen-stamp/verify-eigen.cmake 
-- verifying file... 
file='/home/cdoucet/Downloads/eigen/download/3.2.4.tar.gz' 
-- verifying file... done 
cd /home/cdoucet/Downloads/eigen && /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -P /home/cdoucet/Downloads/eigen/src/eigen-stamp/extract-eigen.cmake 
-- extracting... 
src='/home/cdoucet/Downloads/eigen/download/3.2.4.tar.gz' 
dst='/home/cdoucet/Downloads/eigen/src' 
-- extracting... [tar xfz] 
-- extracting... [analysis] 
-- extracting... [rename] 
-- extracting... [clean up] 
-- extracting... done 
cd /home/cdoucet/Downloads/eigen && /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E touch /home/cdoucet/Downloads/eigen/src/eigen-stamp/eigen-download 
make[2]: *** [/home/cdoucet/Downloads/eigen/src/eigen-stamp/eigen-download] Erreur 1 
make[2]: quittant le répertoire « /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build » 
make[1]: *** [CMakeFiles/eigen.dir/all] Erreur 2 
make[1]: quittant le répertoire « /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build » 
make: *** [all] Erreur 2 
===================== 

----- Mail original -----

> De: "David Cole" <DLRdave at aol.com>
> À: "Cedric Doucet" <cedric.doucet at inria.fr>
> Cc: cmake at cmake.org
> Envoyé: Samedi 18 Avril 2015 20:39:57
> Objet: Re: [CMake] Don't download external projects again after calling "make
> clean"

> What version of CMake are you using? All the modern pre-built CMake
> installations should support https without extra effort on your part. Are
> you using a pre-built version from somewhere or are you building CMake
> yourself?

> On Saturday, April 18, 2015, Cedric Doucet < cedric.doucet at inria.fr > wrote:

> > Ok it seems the answer to my problem is here:
> 
> > http://www.cmake.org/pipermail/cmake/2010-December/041295.html
> 
> > I will try it.
> 

> > ----- Mail original -----
> 
> > > De: "Cedric Doucet" < cedric.doucet at inria.fr >
> 
> > > À: cmake at cmake.org
> 
> > > Envoyé: Samedi 18 Avril 2015 13:38:31
> 
> > > Objet: Re: [CMake] Don't download external projects again after calling
> > > "make clean"
> 
> > >
> 
> > >
> 
> > > I have just tried to install curl to get https support.
> 
> > > To do that, I have followed the steps below:
> 
> > >
> 
> > > 1. Installation of openssl:
> 
> > > 1.a. ./config --prefix=/my/openssl/path
> 
> > > 1.b. make
> 
> > > 1.c. make test
> 
> > > 1.d. make install
> 
> > > 2. Installation of curl
> 
> > > 2.a. ./configure --prefix=/my/curl/path --with-ssl=/my/openssl/path/lib
> 
> > > 2.b. make
> 
> > > 2.c. make install
> 
> > >
> 
> > > I have also prepend PATH with /my/curl/path/bin.
> 
> > > However, the error remains.
> 
> > > It seems that my version of curl (7.41.0) is not taken into acount
> > > because
> > > I
> 
> > > have still this line in the error message:
> 
> > > User-Agent: curl/7.38.0
> 
> > > I tried to remove all previous of curl and libcurl but it does not change
> 
> > > anything.
> 
> > >
> 
> > > Could you help me?
> 
> > >
> 
> > > Cédric
> 
> > >
> 
> > >
> 
> > > ----- Mail original -----
> 
> > > > De: "Cedric Doucet" < cedric.doucet at inria.fr >
> 
> > > > À: "David Cole" < DLRdave at aol.com >
> 
> > > > Cc: cmake at cmake.org
> 
> > > > Envoyé: Samedi 18 Avril 2015 13:00:28
> 
> > > > Objet: Re: [CMake] Don't download external projects again after calling
> 
> > > > "make clean"
> 
> > > >
> 
> > > >
> 
> > > > Hello David,
> 
> > > >
> 
> > > > thank you very much.
> 
> > > > Unfortunately, I get the following error message if I remove my
> > > > download
> 
> > > > command:
> 
> > > >
> 
> > > > -- downloading...
> 
> > > > src=' http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz '
> 
> > > > dst='/home/cdoucet/Downloads/eigen/download/3.2.4.tar.gz'
> 
> > > > timeout='none'
> 
> > > > -- [download 100% complete]
> 
> > > > CMake Error at src/eigen-stamp/download-eigen.cmake:27 (message):
> 
> > > > error: downloading ' http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz
> > > > '
> 
> > > > failed
> 
> > > >
> 
> > > > status_code: 1
> 
> > > > status_string: "Unsupported protocol"
> 
> > > > log: Hostname was NOT found in DNS cache
> 
> > > > Trying 131.103.20.167...
> 
> > > >
> 
> > > > Connected to bitbucket.org (131.103.20.167) port 80 (#0)
> 
> > > >
> 
> > > > GET /eigen/eigen/get/3.2.4.tar.gz HTTP/1.1
> 
> > > >
> 
> > > > User-Agent: curl/7.38.0
> 
> > > >
> 
> > > > Host: bitbucket.org
> 
> > > >
> 
> > > > Accept: */*
> 
> > > >
> 
> > > >
> 
> > > >
> 
> > > > HTTP/1.1 301 Moved Permanently
> 
> > > >
> 
> > > > Server nginx/1.6.2 is not blacklisted
> 
> > > >
> 
> > > > Server: nginx/1.6.2
> 
> > > >
> 
> > > > Date: Sat, 18 Apr 2015 10:55:20 GMT
> 
> > > >
> 
> > > > Content-Type: text/html
> 
> > > >
> 
> > > > Content-Length: 184
> 
> > > >
> 
> > > > Location: https://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz
> 
> > > >
> 
> > > >
> 
> > > >
> 
> > > > Ignoring the response-body
> 
> > > >
> 
> > > > <html>
> 
> > > >
> 
> > > > <head><title>301 Moved Permanently</title></head>
> 
> > > >
> 
> > > > <body bgcolor="white">
> 
> > > >
> 
> > > > <center><h1>301 Moved Permanently</h1></center>
> 
> > > >
> 
> > > > <hr><center>nginx/1.6.2</center>
> 
> > > >
> 
> > > > </body>
> 
> > > >
> 
> > > > </html>
> 
> > > >
> 
> > > > Connection #0 to host bitbucket.org left intact
> 
> > > >
> 
> > > > Issue another request to this URL:
> 
> > > > ' https://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz '
> 
> > > >
> 
> > > > Protocol "https" not supported or disabled in libcurl
> 
> > > >
> 
> > > > Closing connection -1
> 
> > > >
> 
> > > >
> 
> > > >
> 
> > > >
> 
> > > > ----- Mail original -----
> 
> > > > > De: "David Cole" < DLRdave at aol.com >
> 
> > > > > À: "Cedric Doucet" < cedric.doucet at inria.fr >
> 
> > > > > Cc: cmake at cmake.org
> 
> > > > > Envoyé: Vendredi 17 Avril 2015 13:21:08
> 
> > > > > Objet: Re: [CMake] Don't download external projects again after
> > > > > calling
> 
> > > > > "make clean"
> 
> > > > >
> 
> > > > > Eliminate your DOWNLOAD_COMMAND. CMake knows how to do it with just
> 
> > > > > the URL_MD5, DOWNLOAD_DIR and SOURCE_DIR information....
> 
> > > > >
> 
> > > > > HTH,
> 
> > > > > David
> 
> > > > >
> 
> > > > >
> 
> > > > > On Fri, Apr 17, 2015 at 1:32 AM, Cedric Doucet <
> > > > > cedric.doucet at inria.fr
> > > > > >
> 
> > > > > wrote:
> 
> > > > > >
> 
> > > > > > Hello David,
> 
> > > > > >
> 
> > > > > > thank you very much for your help.
> 
> > > > > >
> 
> > > > > > Unfortunately I may do something wrong because it does not work.
> 
> > > > > > After cleaning, the library is downloaded again.
> 
> > > > > >
> 
> > > > > > I guess my mistake comes from the fact I do not understand the role
> > > > > > of
> 
> > > > > > URL_MD5.
> 
> > > > > > Below is a simple example where downloading and installing is very
> 
> > > > > > fast.
> 
> > > > > > You just have to replace the value of EXTERNAL_DIR by the path to
> > > > > > your
> 
> > > > > > own
> 
> > > > > > "Downloads" repository.
> 
> > > > > > I tried to put URL in my DOWNLOAD_COMMAND but the call "wget <URL>"
> 
> > > > > > does
> 
> > > > > > not seem to be understood by the wget command.
> 
> > > > > >
> 
> > > > > > Thanks again!
> 
> > > > > >
> 
> > > > > > Cédric
> 
> > > > > >
> 
> > > > > > --------------------------------------------------------------------------
> 
> > > > > > cmake_minimum_required (VERSION 2.6)
> 
> > > > > >
> 
> > > > > > project (example CXX)
> 
> > > > > >
> 
> > > > > > set(CMAKE_VERBOSE_MAKEFILE ON)
> 
> > > > > >
> 
> > > > > > include(ProcessorCount)
> 
> > > > > > ProcessorCount(N)
> 
> > > > > > if(NOT N EQUAL 0)
> 
> > > > > > set(CMAKE_BUILD_FLAGS -j${N})
> 
> > > > > > endif()
> 
> > > > > >
> 
> > > > > > include(ExternalProject)
> 
> > > > > > set(EXTERNAL_DIR /home/cdoucet/Downloads)
> 
> > > > > > ExternalProject_Add(eigen
> 
> > > > > > PREFIX ${EXTERNAL_DIR}/eigen
> 
> > > > > > DOWNLOAD_DIR ${EXTERNAL_DIR}/eigen/download
> 
> > > > > > SOURCE_DIR ${EXTERNAL_DIR}/eigen/src
> 
> > > > > > BINARY_DIR ${EXTERNAL_DIR}/eigen/build
> 
> > > > > > INSTALL_DIR ${EXTERNAL_DIR}/eigen/install
> 
> > > > > > URL
> 
> > > > > > http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz
> 
> > > > > > URL_MD5 ccb18a771f678b38a3d33c321a8e7daf
> 
> > > > > > DOWNLOAD_COMMAND wget
> 
> > > > > > http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz
> 
> > > > > > &&
> 
> > > > > > tar xvzf 3.2.4.tar.gz -C <SOURCE_DIR>
> 
> > > > > > --strip-components=1
> 
> > > > > > CONFIGURE_COMMAND cd <BINARY_DIR> && cmake -D
> 
> > > > > > CMAKE_INSTALL_PREFIX=$<INSTALL_DIR> <SOURCE_DIR>
> 
> > > > > > )
> 
> > > > > > ------------------------------------------------------------------------------
> 
> > > > > >
> 
> > > > > >
> 
> > > > > >
> 
> > > > > > ----- Mail original -----
> 
> > > > > >> De: "David Cole" < DLRdave at aol.com >
> 
> > > > > >> À: "Cedric Doucet" < cedric.doucet at inria.fr >
> 
> > > > > >> Cc: cmake at cmake.org
> 
> > > > > >> Envoyé: Lundi 13 Avril 2015 12:40:34
> 
> > > > > >> Objet: Re: [CMake] Don't download external projects again after
> 
> > > > > >> calling
> 
> > > > > >> "make clean"
> 
> > > > > >>
> 
> > > > > >> Use the URL_MD5 and DOWNLOAD_DIR arguments to ExternalProject_Add
> > > > > >> to
> 
> > > > > >> put the downloaded files into a location outside the build tree
> 
> > > > > >> (perhaps ~/Downloads on Mac/Linux or $ENV{USERPROFILE}/Downloads
> > > > > >> on
> 
> > > > > >> Windows).
> 
> > > > > >>
> 
> > > > > >> With DOWNLOAD_DIR outside the build tree, and the checksums of the
> 
> > > > > >> downloaded files being the same as you've specified via URL_MD5,
> > > > > >> the
> 
> > > > > >> download portion will be avoided once there is a local copy of a
> > > > > >> file
> 
> > > > > >> available.
> 
> > > > > >>
> 
> > > > > >>
> 
> > > > > >> HTH,
> 
> > > > > >> David C.
> 
> > > > > >>
> 
> > > > > >>
> 
> > > > > >> On Mon, Apr 13, 2015 at 5:04 AM, Cedric Doucet
> 
> > > > > >> < cedric.doucet at inria.fr >
> 
> > > > > >> wrote:
> 
> > > > > >> >
> 
> > > > > >> > Hello!
> 
> > > > > >> >
> 
> > > > > >> > I use the ExternalProject_Add function to download third-party
> 
> > > > > >> > libraries
> 
> > > > > >> > of
> 
> > > > > >> > a code.
> 
> > > > > >> >
> 
> > > > > >> > Once a library has been downloaded, I can call "make" as many
> > > > > >> > times
> 
> > > > > >> > as
> 
> > > > > >> > I
> 
> > > > > >> > want without downloading this library again.
> 
> > > > > >> > It seems that CMake detects that the library has already been
> 
> > > > > >> > downloaded.
> 
> > > > > >> >
> 
> > > > > >> > However, calling "make clean" seems to destroy this feature.
> 
> > > > > >> > Even if my library is not uninstalled during cleaning, calling
> 
> > > > > >> > "make"
> 
> > > > > >> > after
> 
> > > > > >> > "make clean" will lead CMake to try download the library again.
> 
> > > > > >> >
> 
> > > > > >> > How could I tell CMake not to download the library again?
> 
> > > > > >> >
> 
> > > > > >> > Thank you very much for your help!
> 
> > > > > >> >
> 
> > > > > >> > Cédric
> 
> > > > > >> >
> 
> > > > > >> > --
> 
> > > > > >> >
> 
> > > > > >> > 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
> 
> > > > > >>
> 
> > > > >
> 
> > > > --
> 
> > > >
> 
> > > > 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
> 
> > > >
> 
> > > --
> 
> > >
> 
> > > 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
> 
> > >
> 
> > --
> 

> > 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
> 
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