YCM boostrap is broken

[traversaro]

Even if we use a fixed YCM commit for the boostrap, for some reason the YCM boostrap is broken.

The problem is the following:

straversaro@iiticublap103:~/src/debug/robotology-superbuild/build$ cmake -DYCM_BOOTSTRAP_VERBOSE:BOOL=ON .
-- YCM not found. Bootstrapping it.
-- Downloading YCMEPHelper.cmake - Attempt 1 of 3
-- Downloading YCMEPHelper.cmake - SUCCESS
-- Downloading StyleGITHUB.cmake - Attempt 1 of 3
-- Downloading StyleGITHUB.cmake - SUCCESS
-- Performing download step (git clone) for 'YCM'
-- Avoiding repeated git clone, stamp file is up to date: '/home/straversaro/src/debug/robotology-superbuild/build/robotology/YCM/CMakeFiles/YCMStamp/YCM-gitclone-lastrun.txt'
-- Performing update step for 'YCM'
-- Performing configure step for 'YCM'
Not searching for unused variables given on the command line.
-- YCM Version: 0.10.4 (0.10.4)
CMake Warning (dev) at find-modules/CMakeLists.txt:64 (message):
  A "FindGLUT.cmake" module already exists in CMAKE_ROOT.  Please remove it,
  or move it to proposed.
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at find-modules/CMakeLists.txt:64 (message):
  A "FindGSL.cmake" module already exists in CMAKE_ROOT.  Please remove it,
  or move it to proposed.
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at find-modules/CMakeLists.txt:64 (message):
  A "FindOpenGL.cmake" module already exists in CMAKE_ROOT.  Please remove
  it, or move it to proposed.
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at cmake-next/CMakeLists.txt:312 (message):
  CMake version is 3.15.4.  You should update this.
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Configuring done
-- Generating done
-- Build files have been written to: /home/straversaro/src/debug/robotology-superbuild/build/robotology/YCM
-- Performing uninstall step for 'YCM'
Uninstall the project...
CMake Warning at cmake_uninstall.cmake:2 (message):
  Cannot find install manifest:
  "/home/straversaro/src/debug/robotology-superbuild/build/robotology/YCM/install_manifest.txt"


Built target uninstall
-- Performing build step for 'YCM'
[  2%] Files from modules installed in CMake build directory
[  2%] Built target modules
[  5%] Files from find-modules installed in CMake build directory
[  5%] Built target find-modules
[  8%] Files from cmake-proposed installed in CMake build directory
[  8%] Built target cmake-proposed
[ 13%] Built target 3rdparty-uselatex
[ 21%] Built target 3rdparty-cmrc
[ 24%] Files from 3rdparty-qgv installed in CMake build directory
[ 24%] Built target 3rdparty-qgv
[ 27%] Files from OVITO (The Open Visualization Tool) git repository (ref 8689fcb1fdd2e8dc748e76d54d3b77a3f87d384c) downloaded
[ 32%] Built target 3rdparty-ovito
[ 35%] Downloading file cmake/FindEigen3.cmake from Eigen mercurial repository (ref 844c47cfd8d309fe4db5cc21dd7368759d0a7a00)
-- Cannot download file https://bitbucket.org/eigen/eigen/raw/844c47cfd8d309fe4db5cc21dd7368759d0a7a00/cmake/FindEigen3.cmake
  Network problem or not existing file.
  CMake Error at /home/straversaro/src/debug/robotology-superbuild/build/robotology/YCM/3rdparty/CMakeFiles/3rdparty-eigen.dir/ycm_download_cmake_FindEigen3_cmake_real.cmake:9 (file):
  file DOWNLOAD HASH mismatch

    for file: [/home/straversaro/src/debug/robotology-superbuild/build/robotology/YCM/3rdparty/CMakeFiles/3rdparty-eigen.dir/downloads/cmake/FindEigen3.cmake]
      expected hash: [5ad2b8e1ddbd9f0468b21e9d5343d05eda6b9dd1]
        actual hash: [da39a3ee5e6b4b0d3255bfef95601890afd80709]
             status: [22;"HTTP response code said error"].
  Retrying.

-- Cannot download file https://bitbucket.org/eigen/eigen/raw/844c47cfd8d309fe4db5cc21dd7368759d0a7a00/cmake/FindEigen3.cmake
  Network problem or not existing file.
  CMake Error at /home/straversaro/src/debug/robotology-superbuild/build/robotology/YCM/3rdparty/CMakeFiles/3rdparty-eigen.dir/ycm_download_cmake_FindEigen3_cmake_real.cmake:9 (file):
  file DOWNLOAD HASH mismatch

    for file: [/home/straversaro/src/debug/robotology-superbuild/build/robotology/YCM/3rdparty/CMakeFiles/3rdparty-eigen.dir/downloads/cmake/FindEigen3.cmake]
      expected hash: [5ad2b8e1ddbd9f0468b21e9d5343d05eda6b9dd1]
        actual hash: [da39a3ee5e6b4b0d3255bfef95601890afd80709]
             status: [22;"HTTP response code said error"].
  Retrying.

CMake Error at /home/straversaro/src/debug/robotology-superbuild/build/robotology/YCM/3rdparty/CMakeFiles/3rdparty-eigen.dir/ycm_download_cmake_FindEigen3_cmake.cmake:30 (message):
  Cannot download file
  https://bitbucket.org/eigen/eigen/raw/844c47cfd8d309fe4db5cc21dd7368759d0a7a00/cmake/FindEigen3.cmake


    Network problem or not existing file.
    CMake Error at /home/straversaro/src/debug/robotology-superbuild/build/robotology/YCM/3rdparty/CMakeFiles/3rdparty-eigen.dir/ycm_download_cmake_FindEigen3_cmake_real.cmake:9 (file):
    file DOWNLOAD HASH mismatch

  

      for file: [/home/straversaro/src/debug/robotology-superbuild/build/robotology/YCM/3rdparty/CMakeFiles/3rdparty-eigen.dir/downloads/cmake/FindEigen3.cmake]
        expected hash: [5ad2b8e1ddbd9f0468b21e9d5343d05eda6b9dd1]
          actual hash: [da39a3ee5e6b4b0d3255bfef95601890afd80709]
               status: [22;"HTTP response code said error"]


3rdparty/CMakeFiles/3rdparty-eigen.dir/build.make:90: recipe for target '3rdparty/eigen3/cmake/FindEigen3.cmake' failed
make[2]: *** [3rdparty/eigen3/cmake/FindEigen3.cmake] Error 1
CMakeFiles/Makefile2:1235: recipe for target '3rdparty/CMakeFiles/3rdparty-eigen.dir/all' failed
make[1]: *** [3rdparty/CMakeFiles/3rdparty-eigen.dir/all] Error 2
Makefile:128: recipe for target 'all' failed
make: *** [all] Error 2
CMake Error at build/CMakeFiles/YCMEPHelper.cmake:1408 (message):
  Cannot build YCM
Call Stack (most recent call first):
  cmake/YCMBootstrap.cmake:114 (ycm_bootstrap)
  CMakeLists.txt:113 (include)


-- Configuring incomplete, errors occurred!
See also "/home/straversaro/src/debug/robotology-superbuild/build/CMakeFiles/CMakeOutput.log".

[traversaro]

The problem is that https://bitbucket.org/eigen/eigen/raw/844c47cfd8d309fe4db5cc21dd7368759d0a7a00/cmake/FindEigen3.cmake is offline, the root cause is robotology/ycm-cmake-modules#105 .

[traversaro]

The problem is that Eigen migrated today to Gitlab, see http://eigen.tuxfamily.org/index.php?title=News:Migration_to_GitLab.com_scheduled_on_the_December_4th .

[traversaro]

The problem is that the new repo at https://gitlab.com/libeigen/eigen is still down, see https://gitlab.com/libeigen/eigen .

[traversaro]

I include the commit containing the fix in #307 , so that the issue is fixed at least for the master branch of the superbuild.