Build infrastructure improvements

This merge improves the robustness and the utility of the Athena build scripts.

For the `build_externals.sh` script if an install of AthenaExternals and Gaudi is found then the script will exit, unless `-f` is specified. This allows the script to be called multiple times safely, e.g., by the continuous integration system. Specifically the check is done against installs of AthenaExternals and Gaudi, so failed builds should not cause the script to think that there is a valid installation. There were minor improvements to use absolute paths internally that make debugging easier.

In the main `build.sh` script, I factorised out the environment setup piece to `build_env.sh`, allowing it to be easily sourced when someone wants to manage the build themselves or invoke the build commands in special ways.

There is also now support for options in the main build script to control which pieces of the build are done (cmake, make, install, cpack) allowing more detailed control (e.g., the continuous integration system certainly doesn't care about making RPMs - @cgumpert will like that).

Finally, there is a small change to the main `CMakeLists.txt` file to remove the zero compression option from RPM generation (which only saves a small amount of time, but inflates the RPM size greatly).

See merge request !177

Former-commit-id: 2e50c8578bf057a110a5f97eb8af01e4e65cefa6

Add TriggerRelease package back into master

This package was accidentally omitted due to a filter on package
names ending in "Release" (needed to filter out unnecessary auto-generated
packages from Tag Collector). It's now re-added at the current dev tag,
TriggerRelease-00-12-15.

See merge request !180

Former-commit-id: bf8837f175fad98cd2448d2569aba90bfc3f2283

It seems this saves very little time anyway (rpmbuild spends most
of its time on other things) and it hugely inflates the RPM
size (> x4). See discussion on ATLINFR-1466.


Former-commit-id: a77b0407c103d25d2efd390ffa0811bcd0f3f517

In the externals build script if an install of AthenaExternals and
Gaudi is found then the script will exit, unless -f is specified. This
allows the script to be called multiple times safely, e.g., by the
continuous integration system. Specifically the check is done against
installs of AthenaExternals and Gaudi, so failed builds should not
cause the script to think that there is a valid installation.

In the main build script, factorise out the environment setup piece to
build_env.sh, allowing it to be easily sourced when someone wants to
manage the build themselvs or invoke the build commands in special
ways.

Support options in the main build script to control which pieces of
the build are done (cmake, make, install, cpack) allowing more
detailed control (e.g., the continuous integration system certainly
doesn't care about making RPMs).


Former-commit-id: 6412405cafcf41f8234da6db185107b4c3543a78

port CI scripts from 21.0 branch

The CI setup was developed initially using the 21.0 branch. This
setup needs to be merged into the main development branch now. It
should be cherry-picked in other development branches later.

See merge request !179

Former-commit-id: d5fc049768f849287ff8c5a2d090c1c3897d11e7

The CI setup was developed initially using the 21.0 branch. This
setup needs to be merged into the main development branch now. It
should be cherry-picked in other development branches later.


Former-commit-id: de63de45

handle already existing source directories

The build scripts were failing when executed twice with the same
build directory. Re-using previous builds is essential for
incremental builds.

See merge request !176

Former-commit-id: 5f0e8e73b509b2e0b77d8a4b44261700298337dd

This package was accidentally omitted due to a filter on package
names ending in "Release" (needed to filter out unnecessary auto-generated
packages from Tag Collector).


Former-commit-id: fcd18b4b

The build scripts were failing when executed twice with the same
build directory. Re-using previous builds is essential for
incremental builds.


Former-commit-id: 534656e776627b272db19ed50903356cc1e2f676

Master build2

This is another set of changes to improve the build success rate on master branch.

Most generators are re-enabled, but fail. However, this avoids problems with packages that depend on generator header files (FastSim).

I will just rush this in as an urgent bugfix for tonight's NICOS build.

See merge request !175

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Former-commit-id: dddcd4fcb1ff0689ee1f7493160c5b400d25c683

Update HLT package filter

Java packages are no longer part of offline release. Remove HLT testing package.

See merge request !170

Former-commit-id: 64036cb1afe33ab717fef7a95dd660831b09501a

Doxygen migration

For git builds, we will create the doxygen documentation differently: instead of generating it per package, we will now generate it in one pass. This means that we can no longer have per package mainpage.h files, and no-one is allowed to use the @mainpage command. I have used the removeMainpages.py script to implement this, as well as remove links to e.g. requirements files which make no sense any more.
Details have been presented in various talks in atlas git team meetings: https://indico.cern.ch/category/130/

See merge request !171

Former-commit-id: 43b5fa21251287f73b2b2b67246c4bfdda09b5f6

JetSubStructureMomentTools had a tool that depended on the binary only
shower reconstruction library that currently does build from git. As this
was never even built for the analysis releases then it seems it's
appropriate to remove this code now.


Former-commit-id: d657bbac02039aa6854984a682f08dc68208cfb2

Former-commit-id: b8bfaa1f9e2921c56b218bc35c27b5afb2f53b7a

Remove the overly aggressive package vetos (especially for Generators).
Definitively add the AsgAnalysisInterfaces that was mistakenly classed
as an analysis only package.


Former-commit-id: 5b95cf29a3ccdd4ef421a10eb5caa27b768a9fca

Master build fixes

Progressive fixes for building atlas/athena master branch

See merge request !173

Former-commit-id: 5df09d50818fca8909fc7ff0d87423535fbfa344

# Conflicts:
#   Build/AtlasBuildScripts/checkout_atlasexternals.sh

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Former-commit-id: 124500d050da7407fabbb7a00398e7c29ade1cc3

This code relied on a binary module that we do not have
the source code to, so it's better to remove it now and
look for a better solution if and when ATLAS might want
to use it again later.


Former-commit-id: eb0b4304538b32aca4ef2e0100e19dbf454ce4ab

Former-commit-id: c836aff8

Modify checkout_atlasexternals.sh to use a default clone URL
which is https+krb5. Also allow this to be changed with a
command line switch. N.B. Still requires support from the
higher level script Projects/Athena/build_externals.sh.

Change the Athena project package build list. Remove
analysis only packages that should not build here. Also filter
out many generator packages for now until these can be fixed
properly. Lack of generators disables fast simulation.


Former-commit-id: d27c35f72f5eadb2a05182fc2b9e69ae5885c060

Added README.


Former-commit-id: bd08d1ddc913561948a3bc28cbb1fd136e9dfd2c

Former-commit-id: def5a316a0087d2f528ffafdbaf78029268cfa0b

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Former-commit-id: 73a43e15c7ff3e9cec85bfde42b734b2ec3e9d5f

Master svn sweep to 2017-02-06

This merge request contains the SVN changes to 22.0.0 (non-VAL) from 2107-02-02 to 2017-02-06.

This merge request is the first true test of moving changes from SVN into a *live* git branch.

This set of changes will be the starting point for fixing the master branch build.

See merge request !168

Former-commit-id: 3210a651fdea82e39bfd4b0dc2aeca347013ae35

	* tag version prior to git migration
	* tag as InDetPhysValMonitoring-00-04-44

2017-02-03  Liza Mijovic  <lmijovic@lxplus115.cern.ch>
	* postprocessing: adding temporary copy of
		postprocessing script with command-line options
		needed for new merging schema

2017-02-02  Liza Mijovic  <lmijovic@lxplus115.cern.ch>
	* run/postprocessHistos.cxx :
	* * removing 200 lines of unused or useless code
	* * testing and doc-ing command line running

2017-02-02 Nora Pettersson
	* Fix asymmetry in resolutions

2017-02-01 Nora Pettersson
	* Reduce memory consumpution for resITk plots

2017-01-30  Liza Mijovic  <lmijovic@lxplus078.cern.ch>
...
(Long ChangeLog diff - truncated)


Former-commit-id: d8ed38e6

	* Tagging RootFileTools-00-01-62.
	* src/merge.cxx: Fix warning.


Former-commit-id: 7fcad279