<<TableOfContents()>>


= Binary Distribution =


 !GitHub webhooks are setup to send notifications to blake. Blake forwards those to three build machines. Currently, webhooks are being listened to only on Linux. Linux runs the server that drives the Jenkins jobs.


== Jenkins Setup ==


Jenkins server runs on Linux, Jenkins agents on Linux, Mac and Windows. The server instance manages Jenkins, the agents run the jobs.

 1. On Linux, to start Jenkins, run command:{{{
docker stop jenkins-master

docker rm jenkins-master

docker run -d -u root --name jenkins-master -p 8080:8080 -p 50000:50000 --restart unless-stopped -v /home/eman2/jenkins_home:/var/jenkins_home -e PLUGINS_FORCE_UPGRADE=true -e TRY_UPGRADE_IF_NO_MARKER=true --restart unless-stopped jenkins/jenkins:lts

}}}

 1. Server login info: 10.10.11.176:8080/ username: eman2
 1. Install Java on agents.
 1. Setup passwordless ssh connections from Linux server to agents.
 1. Binary builds require conda-build and constructor. Packaging is done with {{{constructor}}}, a tool for making installers from conda packages.
 1. Nodes: http://10.10.11.176:8080/computer/
  1. http://10.10.11.176:8080/computer/linux/configure
    1. name: linux
    1. remoteFS: /home/eman2/linux-1-agent/
    1. numExecutors: 100
    1. host: eman-centos7-01
    1. credentialsId: jenkins-key-eman2
    1. label: eman
    1. envVars
     1. DEPLOY_PATH: /opt/web2py_apps/web2py/applications/cryoem/static/software/
     1. HOME_DIR: /home/eman2
     1. PATH+EXTRA: /home/eman2/miniconda3/bin

  1. http://10.10.11.176:8080/computer/mac/configure
    1. name: mac
    1. remoteFS: /Users/eman/mac-1-agent
    1. numExecutors: 100
    1. host: eman-macmini
    1. credentialsId: jenkins-key-eman
    1. label: eman
    1. envVars
     1. DEPLOY_PATH: /opt/web2py_apps/web2py/applications/cryoem/static/software/
     1. HOME_DIR: /Users/eman/
     1. PATH+EXTRA: /Users/eman/miniconda3/bin

  1. http://10.10.11.176:8080/computer/win/configure
    1. name: win
    1. remoteFS: D:\workspace\win-1-agent
    1. numExecutors: 100
    1. host: BM-WIN-01
    1. credentialsId: jenkins-key-eman
    1. !JavaPath: "D:\Downloads\openjdk-11+28_windows-x64_bin\jdk-11\bin\java.exe"
    1. Prefix Start Agent Command: "D: &&"
    1. label: eman
    1. envVars
     1. DEPLOY_PATH: /opt/web2py_apps/web2py/applications/cryoem/static/software/
     1. HOME_DIR: D:
     1. PATH+EXTRA: D:\Miniconda3;D:\Miniconda3\Scripts
    1. On Windows for sh calls in jenkins to work "Git for Windows" might need to be installed.

=== Jenkins Server Setup (on Linux) ===
 1. http://10.10.11.176:8080/manage/configure
  1. Labels: main master
  1. Jenkins URL: http://10.10.11.176:8080/
  1. System Admin e-mail address: eman-bot (linux)<eman.github@gmail.com>
  1. SSH Servers
   1.  Name: Installer-Server
   1.  Hostname: cryoem.bcm.edu
   1.  Username: eman-binary-uploader
   1.  Remote Directory: /opt/web2py_apps/web2py/applications/cryoem/static/software/

 1. http://10.10.11.176:8080/manage/configureSecurity/
  1. Agents
   1. TCP port for inbound agents
    1. Fixed: 50000
  1. Git Host Key Verification Configuration
   1. Host Key Verification Strategy
    1. Known hosts file

 1. Credentials: http://10.10.11.176:8080/manage/credentials/ 
  {{{
ID                  Name
gh-eman-bot         eman-bot (gh-eman-
jenkins-key-eman    eman (jenkins-key-eman)
jenkins-key-eman2   eman2 (jenkins-key-eman2)
}}}

 1. Jobs
  1. http://10.10.11.176:8080/job/cryoem-eman2-trigger/: Triggers job cryoem-eman2 on agents
  1. http://10.10.11.176:8080/job/cryoem-eman2/: Test(?) and binary builds
  * eman-dev(?): Triggers new build of eman-dev
  1. http://10.10.11.176:8080/job/eman-bump-version/
  1. http://10.10.11.176:8080/job/eman-feedstock-update-version/
  1. http://10.10.11.176:8080/job/eman-feedstock-trigger-from-eman-master/
  1. http://10.10.11.176:8080/job/build-binary/
  1. http://10.10.11.176:8080/job/build-binary-trigger/
  1. http://10.10.11.176:8080/job/eman-feedstock-building-eman-v2.99/

 1. JenkinsCI: [[https://github.com/cryoem/eman2/blob/master/Jenkinsfile|Jenkinsfile]]
   1. Secrets like ssh keys are stored locally in Jenkins
   1. Manually triggered by including "[ci build]" anywhere in the last commit message. Manually triggered builds on master branch are uploaded as [[https://cryoem.bcm.edu/downloads/view_eman2_version/25|continuous builds]] and builds triggered from any other branch are uploaded to [[https://cryoem.bcm.edu/downloads/view_eman2_version/26|testing area]].
   1. Any branch in the form of "release-" triggers continuous builds without having to include "[ci build]" in the commit message. Once the release branch is ready, release binaries are manually copied from cont. builds folder into the release folder on the server.


{{{#!wiki comment

Mac: slave clock sync https://blog.shameerc.com/2017/03/quick-tip-fixing-time-drift-issue-on-docker-for-mac docker run --rm --privileged alpine hwclock -s

Windows: 
OPENGL: https://github.com/conda/conda-recipes/blob/master/qt5/notes.md


Not sure if this is true
 1. Jenkins master needs PATH prepended with $CONDA_PREFIX/bin
}}}



= Anaconda =

Dependencies not available on anaconda or conda-forge are available on [[https://anaconda.org/cryoem/|cryoem]]. The binaries are built and uploaded using [[https://conda-forge.org/|conda-forge's]] [[https://github.com/conda-forge/conda-smithy|conda-smithy]]. [[https://github.com/conda-forge/conda-smithy|conda-smithy]] takes care of generating feedstocks, registering them on !GitHub and online CI services and building conda recipes. 


 1. [[https://github.com/conda/conda|conda]] is the package manager.
 1. https://anaconda.org is the online repository of binaries.
 1. [[https://github.com/conda/conda-build|conda-build]] is the tool to build from source.
 1. [[https://github.com/cryoem/constructor.git|constructor]] is the tool to package eman2 and dependency binaries into a single installer file.

EMAN2 is distributed as a single installer which includes all its dependencies. 

== Conda ==

Packages that are available on https://anaconda.org can be installed into any conda environment by issuing the command {{{conda install <package>}}}. Conda installs the package along with its dependencies. In order for packages to benefit from this automation, they need to be packaged in a specific way. That can be done with {{{conda-build}}}. {{{conda-build}}} builds packages according to instructions provided in a {{{recipe}}}. A recipe consists of a file with package metadata, {{{meta.yaml}}}, and any other necessary resources like build scripts, ({{{build.sh}}}, {{{bld.bat}}}), patches and so on.

== Recipes, Feedstocks and anaconda.org channel: cryoem ==

Most of EMAN2 dependencies can be found on anaconda's channels, {{{defaults}}} and {{{conda-forge}}}. A few that do not exist or need to be customized have been built and uploaded to channel [[https://anaconda.org/cryoem/dashboard|cryoem]]. The recipes are hosted in separate repositories on [[https://github.com/cryoem/|GitHub]]. Every recipe repository follows the feedstock approach of [[http://conda-forge.github.io/|conda-forge]]. See [[https://github.com/cryoem?utf8=%E2%9C%93&q=-feedstock&type=&language=|here]] for a complete list.



== Feedstocks ==
 * https://github.com/cryoem/eman-deps-feedstock
 * https://github.com/cryoem/pydusa-feedstock
 * https://github.com/cryoem/eman-feedstock

=== General instructions ===
 1. Existing feedstocks
 1. Files to edit: recipe/, conda-build.yaml, conda-forge.yaml
 1. conda create -n smithy conda-smithy -c conda-forge
 1. conda-smithy rerender
 1. More info in conda-smithy/README.md, conda smithy -h, conda-forge.org/docs
 1. New feedstocks
 1. conda-smithy/README.md, conda smithy -h

=== Conda-smithy Workflow ===

Conda smithy uses tokens to authenticate with !GitHub.

Conda-smithy commands:
 {{{#!highlight bash
conda create -n smithy conda-smithy
conda activate smithy
conda smithy init <recipe_directory>
conda smithy register-github <feedstock_directory> --organization cryoem
conda smithy register-ci --organization cryoem --without-azure --without-drone
conda smithy rerender --no-check-uptodate
}}}







= Build System Notes =


== CMake ==

 1. ''libpython'' can be linked statically or dynamically when python is built. It is important for python extensions to be aware of the type of linking in order to avoid segfaults. This can be accomplished by querying Py_ENABLE_SHARED.

 {{{#!highlight bash
python -c "import sysconfig; print(sysconfig.get_config_var('Py_ENABLE_SHARED'))"
}}}

 In EMAN, it is done in [[https://github.com/cryoem/eman2/blob/master/cmake/FindPython.cmake#L29-L73|cmake/FindPython.cmake]]

 1. OpenGL detection when Anaconda's compilers are used is done using a [[https://github.com/cryoem/eman2/blob/master/recipe/cross-linux.cmake|cmake toolchain file]].

 1. glext.h file needed for OpenGL related module compilation is already present on Linux and Mac. On Windows, it is manually copied once into C:\Program Files\Microsoft SDKs\Windows\v6.0A\Include\gl. On Appveyor it is downloaded as part of env setup every time a test is run.


{{{{#!wiki comment

==== Docker ====
Docker images and helper scripts are at --(https://github.com/cryoem/docker-images )-- https://github.com/cryoem/build-scripts.

Command to run docker with GUI support, CentOS7: {{{
xhost + local:root

docker run -it -v /tmp/.X11-unix:/tmp/.X11-unix -e DISPLAY=unix$DISPLAY cryoem/eman-nvidia-cuda8-centos7

# When done with eman
xhost - local:root
}}}

:FIXME: Runs as root on Linux. `chown` doesn't work, the resulting installer has root ownership.
}}}}