From dd33a61cc6d0094d45a52ec37d9dc696e1b9158d Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Wed, 24 Jun 2020 08:57:44 -0400
Subject: [PATCH 01/17] [cmake] When searching dependency sources, check both
 current dir and CMAKE_SOURCE_DIR/deps

---
 deps/CMakeLists.txt            | 3 ++-
 deps/external_dependency.cmake | 3 +++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/deps/CMakeLists.txt b/deps/CMakeLists.txt
index 25c49960..9ac49757 100644
--- a/deps/CMakeLists.txt
+++ b/deps/CMakeLists.txt
@@ -17,7 +17,8 @@ include(external_dependency.cmake)
 #     to locate the package in the system.
 #     Skip this step if Build_Deps option is set.
 #  2. Try to find a directory containing the sources
-#     at ${PROJECT_SOURCE_DIR}/deps/name. If found
+#     at ${CMAKE_CURRENT_SOURCE_DIR}/name and
+#     ${CMAKE_SOURCE_DIR}/deps/name. If found
 #     build it as a cmake sub-project.
 #  3. If GIT_REPO is provided, git clone the sources,
 #     and build them as a cmake sub-project.
diff --git a/deps/external_dependency.cmake b/deps/external_dependency.cmake
index e7cc44ea..7ba1b7ad 100644
--- a/deps/external_dependency.cmake
+++ b/deps/external_dependency.cmake
@@ -51,6 +51,9 @@ function(external_dependency)
   if(IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${ARGV0})
     message(STATUS "Found sources for dependency ${ARGV0} at ${CMAKE_CURRENT_SOURCE_DIR}/${ARGV0}")
     add_subdirectory(${ARGV0} ${subdir_opts})
+  elseif(IS_DIRECTORY ${CMAKE_SOURCE_DIR}/deps/${ARGV0})
+    message(STATUS "Found sources for dependency ${ARGV0} at ${CMAKE_SOURCE_DIR}/deps/${ARGV0}")
+    add_subdirectory(${ARGV0} ${subdir_opts})
   elseif(ARG_GIT_REPO)
     set(bin_dir ${CMAKE_CURRENT_BINARY_DIR}/${ARGV0})
     set(src_dir ${bin_dir}_src)

From 6aff3f1a39f121690785d086c9a7ae33b2f625de Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Wed, 24 Jun 2020 10:06:11 -0400
Subject: [PATCH 02/17] [cmake] Default to -DBuild_Deps=IfNotFound, adjust
 install instructions

---
 deps/CMakeLists.txt | 2 +-
 doc/install.rst     | 7 -------
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/deps/CMakeLists.txt b/deps/CMakeLists.txt
index 9ac49757..dad295fd 100644
--- a/deps/CMakeLists.txt
+++ b/deps/CMakeLists.txt
@@ -35,7 +35,7 @@ include(external_dependency.cmake)
 #                     In particular the dependency will not be installed.
 
 if(NOT DEFINED Build_Deps)
-  set(Build_Deps "Never" CACHE STRING "Do we build dependencies from source? [Never/Always/IfNotFound]")
+  set(Build_Deps "IfNotFound" CACHE STRING "Do we build dependencies from source? [Never/Always/IfNotFound]")
 else()
   set(Build_Deps_Opts "Never" "Always" "IfNotFound")
   if(NOT ${Build_Deps} IN_LIST Build_Deps_Opts)
diff --git a/doc/install.rst b/doc/install.rst
index 203ab7cd..d8668c58 100644
--- a/doc/install.rst
+++ b/doc/install.rst
@@ -19,13 +19,6 @@ Installation steps
 
      $ git clone https://github.com/TRIQS/app4triqs app4triqs.src
 
-#. Make sure that all additional dependencies are installed on your system and available in your environment.
-   Alternatively build the dependencies from source instead with::
-
-     $ (cd deps && ./download.sh)
-
-   In this case they will be installed together with your application.
-
 #. Create and move to a new directory where you will compile the code::
 
      $ mkdir app4triqs.build && cd app4triqs.build

From 15e4c6d6352c314b8ed011db482122003601bc2a Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Wed, 24 Jun 2020 10:13:02 -0400
Subject: [PATCH 03/17] [cmake] Provide information on INSTALL_PREFIX in
 config.cmake files

---
 share/cmake/app4triqs-config.cmake.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/share/cmake/app4triqs-config.cmake.in b/share/cmake/app4triqs-config.cmake.in
index e9101328..452a7d75 100644
--- a/share/cmake/app4triqs-config.cmake.in
+++ b/share/cmake/app4triqs-config.cmake.in
@@ -21,7 +21,7 @@ set(@PROJECT_NAME@_ROOT @CMAKE_INSTALL_PREFIX@ CACHE STRING "@PROJECT_NAME@ root
 # Include the exported targets of this project
 include(@CMAKE_INSTALL_PREFIX@/lib/cmake/@PROJECT_NAME@/@PROJECT_NAME@-targets.cmake)
 
-message(STATUS "Found @PROJECT_NAME@-config.cmake with version @PROJECT_VERSION@, hash = @PROJECT_GIT_HASH@")
+message(STATUS "Found @PROJECT_NAME@-config.cmake with version @PROJECT_VERSION@, hash = @PROJECT_GIT_HASH@, root = @CMAKE_INSTALL_PREFIX@")
 
 # Was the Project built with Documentation?
 set(@PROJECT_NAME@_WITH_DOCUMENTATION @Build_Documentation@ CACHE BOOL "Was @PROJECT_NAME@ build with documentation?")

From c04128fa0d2b4d9022e322b3bdba768641069639 Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Wed, 8 Jul 2020 11:25:57 -0400
Subject: [PATCH 04/17] [cmake] Protect against flags -I/usr/include in
 extract_flags.cmake

---
 share/cmake/extract_flags.cmake | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/share/cmake/extract_flags.cmake b/share/cmake/extract_flags.cmake
index dfcf67b0..6bce43c2 100644
--- a/share/cmake/extract_flags.cmake
+++ b/share/cmake/extract_flags.cmake
@@ -76,10 +76,14 @@ macro(extract_flags)
     list(REMOVE_ITEM sys_inc_dirs ${inc_dirs})
   endif()
   foreach(dir ${inc_dirs})
-    set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -I${dir}")
+    if(NOT dir STREQUAL "/usr/include")
+      set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -I${dir}")
+    endif()
   endforeach()
   foreach(dir ${sys_inc_dirs})
-    set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -isystem${dir}")
+    if(NOT dir STREQUAL "/usr/include")
+      set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -isystem${dir}")
+    endif()
   endforeach()
 
   get_property_recursive(libs TARGET ${target} PROPERTY INTERFACE_LINK_LIBRARIES)

From e2f4e9988e66b52463305b84d5878b692393c67e Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Tue, 14 Jul 2020 18:29:12 -0400
Subject: [PATCH 05/17] [cmake] Extend extract_flags.cmake to treat
 compiler-specific generator expressions properly

---
 share/cmake/extract_flags.cmake | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/share/cmake/extract_flags.cmake b/share/cmake/extract_flags.cmake
index 6bce43c2..b6d11483 100644
--- a/share/cmake/extract_flags.cmake
+++ b/share/cmake/extract_flags.cmake
@@ -93,7 +93,8 @@ macro(extract_flags)
     endif()
   endforeach()
 
-  # We have to replace generator expressions explicitly
+  # ==== We have to replace generator expressions explicitly ====
+
   if(ARG_BUILD_INTERFACE)
     string(REGEX REPLACE "\\$<BUILD_INTERFACE:([^ ]*)>" "\\1" ${target}_LDFLAGS "${${target}_LDFLAGS}")
     string(REGEX REPLACE "\\$<BUILD_INTERFACE:([^ ]*)>" "\\1" ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
@@ -101,6 +102,19 @@ macro(extract_flags)
     string(REGEX REPLACE "\\$<INSTALL_INTERFACE:([^ ]*)>" "\\1" ${target}_LDFLAGS "${${target}_LDFLAGS}")
     string(REGEX REPLACE "\\$<INSTALL_INTERFACE:([^ ]*)>" "\\1" ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
   endif()
+
+  if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+    string(REGEX REPLACE "\\$<\\$<CXX_COMPILER_ID:GNU>:([^ ]*)>" "\\1" ${target}_LDFLAGS "${${target}_LDFLAGS}")
+    string(REGEX REPLACE "\\$<\\$<CXX_COMPILER_ID:GNU>:([^ ]*)>" "\\1" ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
+  elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+    string(REGEX REPLACE "\\$<\\$<CXX_COMPILER_ID:Clang>:([^ ]*)>" "\\1" ${target}_LDFLAGS "${${target}_LDFLAGS}")
+    string(REGEX REPLACE "\\$<\\$<CXX_COMPILER_ID:Clang>:([^ ]*)>" "\\1" ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
+  elseif(CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang")
+    string(REGEX REPLACE "\\$<\\$<CXX_COMPILER_ID:AppleClang>:([^ ]*)>" "\\1" ${target}_LDFLAGS "${${target}_LDFLAGS}")
+    string(REGEX REPLACE "\\$<\\$<CXX_COMPILER_ID:AppleClang>:([^ ]*)>" "\\1" ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
+  endif()
+
+  # Remove all remaining generator expressions
   string(REGEX REPLACE " [^ ]*\\$<[^ ]*:[^>]*>" "" ${target}_LDFLAGS "${${target}_LDFLAGS}")
   string(REGEX REPLACE " [^ ]*\\$<[^ ]*:[^>]*>" "" ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
 endmacro()

From 5a9fc1118b0ad371bc351cca7f597432780f95c6 Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Tue, 14 Jul 2020 18:29:39 -0400
Subject: [PATCH 06/17] [cmake] In extract_flags.cmake, protect extraction of
 -L/usr/lib and fix filtering -I/usr/include

---
 share/cmake/extract_flags.cmake | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/share/cmake/extract_flags.cmake b/share/cmake/extract_flags.cmake
index b6d11483..e00ee628 100644
--- a/share/cmake/extract_flags.cmake
+++ b/share/cmake/extract_flags.cmake
@@ -76,14 +76,10 @@ macro(extract_flags)
     list(REMOVE_ITEM sys_inc_dirs ${inc_dirs})
   endif()
   foreach(dir ${inc_dirs})
-    if(NOT dir STREQUAL "/usr/include")
-      set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -I${dir}")
-    endif()
+    set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -I${dir}")
   endforeach()
   foreach(dir ${sys_inc_dirs})
-    if(NOT dir STREQUAL "/usr/include")
-      set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -isystem${dir}")
-    endif()
+    set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -isystem${dir}")
   endforeach()
 
   get_property_recursive(libs TARGET ${target} PROPERTY INTERFACE_LINK_LIBRARIES)
@@ -117,4 +113,10 @@ macro(extract_flags)
   # Remove all remaining generator expressions
   string(REGEX REPLACE " [^ ]*\\$<[^ ]*:[^>]*>" "" ${target}_LDFLAGS "${${target}_LDFLAGS}")
   string(REGEX REPLACE " [^ ]*\\$<[^ ]*:[^>]*>" "" ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
+
+  # Filter out system directories from LDFLAGS and CXXFLAGS
+  string(REGEX REPLACE " -L/usr/lib " " " ${target}_LDFLAGS "${${target}_LDFLAGS}")
+  string(REGEX REPLACE " -I/usr/include " " " ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
+  string(REGEX REPLACE " -isystem/usr/include " " " ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
+
 endmacro()

From 9c23827e01589f2925e234868da8a98b339d6b9d Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Mon, 27 Jul 2020 15:25:32 -0400
Subject: [PATCH 07/17] [doc] Add missing theme images

---
 doc/themes/agogo/static/bgfooter.png | Bin 0 -> 434 bytes
 doc/themes/agogo/static/bgtop.png    | Bin 0 -> 430 bytes
 doc/themes/triqs/static/bodybg.png   | Bin 0 -> 602 bytes
 doc/themes/triqs/static/footerbg.png | Bin 0 -> 313 bytes
 doc/themes/triqs/static/headerbg.png | Bin 0 -> 344 bytes
 doc/themes/triqs/static/listitem.png | Bin 0 -> 207 bytes
 doc/themes/triqs/static/relbg.png    | Bin 0 -> 332 bytes
 7 files changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 doc/themes/agogo/static/bgfooter.png
 create mode 100644 doc/themes/agogo/static/bgtop.png
 create mode 100644 doc/themes/triqs/static/bodybg.png
 create mode 100644 doc/themes/triqs/static/footerbg.png
 create mode 100644 doc/themes/triqs/static/headerbg.png
 create mode 100644 doc/themes/triqs/static/listitem.png
 create mode 100644 doc/themes/triqs/static/relbg.png

diff --git a/doc/themes/agogo/static/bgfooter.png b/doc/themes/agogo/static/bgfooter.png
new file mode 100644
index 0000000000000000000000000000000000000000..9ce5bdd902943fdf8b0c0ca6a545297e1e2cc665
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diff --git a/doc/themes/triqs/static/bodybg.png b/doc/themes/triqs/static/bodybg.png
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GIT binary patch
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diff --git a/doc/themes/triqs/static/footerbg.png b/doc/themes/triqs/static/footerbg.png
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diff --git a/doc/themes/triqs/static/headerbg.png b/doc/themes/triqs/static/headerbg.png
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diff --git a/doc/themes/triqs/static/listitem.png b/doc/themes/triqs/static/listitem.png
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GIT binary patch
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diff --git a/doc/themes/triqs/static/relbg.png b/doc/themes/triqs/static/relbg.png
new file mode 100644
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GIT binary patch
literal 332
zcmeAS@N?(olHy`uVBq!ia0vp^A|TAc1SFYWcSQjy&H|6fVxatW5N34Jm|X!BWH0gb
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literal 0
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From 56483b2d7d2bf3c95a90ddc0d70a8cdb549ae203 Mon Sep 17 00:00:00 2001
From: Dylan Simon <dylan@dylex.net>
Date: Mon, 3 Aug 2020 11:23:34 -0400
Subject: [PATCH 08/17] [jenkins] send email on test failure too

---
 Jenkinsfile | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/Jenkinsfile b/Jenkinsfile
index 3d7ff1e5..bab8d5a6 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -102,6 +102,7 @@ for (int i = 0; i < osxPlatforms.size(); i++) {
 }
 
 /****************** wrap-up */
+def error = null
 try {
   parallel platforms
   if (keepInstall) { node("docker") {
@@ -150,13 +151,13 @@ try {
     } }
   } }
 } catch (err) {
+  error = err
+} finally {
   /* send email on build failure (declarative pipeline's post section would work better) */
-  if (env.BRANCH_NAME != "jenkins") emailext(
+  if ((error != null || currentBuild.currentResult != 'SUCCESS') && env.BRANCH_NAME != "jenkins") emailext(
     subject: "\$PROJECT_NAME - Build # \$BUILD_NUMBER - FAILED",
     body: """\$PROJECT_NAME - Build # \$BUILD_NUMBER - FAILED
 
-$err
-
 Check console output at \$BUILD_URL to view full results.
 
 Building \$BRANCH_NAME for \$CAUSE
@@ -168,11 +169,11 @@ Changes:
 End of build log:
 \${BUILD_LOG,maxLines=60}
     """,
-    to: 'nwentzell@flatironinstitute.org',
+    to: 'nwentzell@flatironinstitute.org, dsimon@flatironinstitute.org',
     recipientProviders: [
       [$class: 'DevelopersRecipientProvider'],
     ],
     replyTo: '$DEFAULT_REPLYTO'
   )
-  throw err
+  if (error != null) throw error
 }

From ff8124ea24cc75146f048d1f81bb489426e12d1a Mon Sep 17 00:00:00 2001
From: Dylan Simon <dylan@dylex.net>
Date: Mon, 3 Aug 2020 11:25:11 -0400
Subject: [PATCH 09/17] [jenkins] inject test failure to test email

---
 test/python/Basic.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/python/Basic.py b/test/python/Basic.py
index 9ff46e2d..4c90ad13 100644
--- a/test/python/Basic.py
+++ b/test/python/Basic.py
@@ -14,7 +14,7 @@ class test_toto(unittest.TestCase):
         b=Toto(2)
         
         c=a+b
-        self.assertEqual(c, b)
+        self.assertEqual(c, a)
 
 
     def test_h5(self):

From 1eabf195704742d07b619a5808ad4abbded5cc51 Mon Sep 17 00:00:00 2001
From: Dylan Simon <dylan@dylex.net>
Date: Mon, 3 Aug 2020 11:32:27 -0400
Subject: [PATCH 10/17] Revert "[jenkins] inject test failure to test email"

This reverts commit ff8124ea24cc75146f048d1f81bb489426e12d1a.
---
 test/python/Basic.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/python/Basic.py b/test/python/Basic.py
index 4c90ad13..9ff46e2d 100644
--- a/test/python/Basic.py
+++ b/test/python/Basic.py
@@ -14,7 +14,7 @@ class test_toto(unittest.TestCase):
         b=Toto(2)
         
         c=a+b
-        self.assertEqual(c, a)
+        self.assertEqual(c, b)
 
 
     def test_h5(self):

From 43720b8f8f608748289b0bae118014138d0b5a57 Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Mon, 3 Aug 2020 15:34:31 -0400
Subject: [PATCH 11/17] [cmake] Use find_package over find_dependency in
 config.cmake.in to improve cmake version compatibility

---
 share/cmake/app4triqs-config.cmake.in | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/share/cmake/app4triqs-config.cmake.in b/share/cmake/app4triqs-config.cmake.in
index 452a7d75..ef926eff 100644
--- a/share/cmake/app4triqs-config.cmake.in
+++ b/share/cmake/app4triqs-config.cmake.in
@@ -15,8 +15,7 @@ set(@PROJECT_NAME@_GIT_HASH @PROJECT_GIT_HASH@ CACHE STRING "@PROJECT_NAME@ git
 set(@PROJECT_NAME@_ROOT @CMAKE_INSTALL_PREFIX@ CACHE STRING "@PROJECT_NAME@ root directory")
 
 ## Find the target dependencies
-#include(CMakeFindDependencyMacro)
-#find_dependency(... HINTS @CMAKE_INSTALL_PREFIX@)
+#find_package(... REQUIRED HINTS @CMAKE_INSTALL_PREFIX@)
 
 # Include the exported targets of this project
 include(@CMAKE_INSTALL_PREFIX@/lib/cmake/@PROJECT_NAME@/@PROJECT_NAME@-targets.cmake)

From eb68c32562daa0a4b496af1c84be9a806ff90815 Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Mon, 3 Aug 2020 15:38:56 -0400
Subject: [PATCH 12/17] Update changelog for app4triqs 3.0.0 release

---
 doc/ChangeLog.md | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/doc/ChangeLog.md b/doc/ChangeLog.md
index c71910b2..99deae8e 100644
--- a/doc/ChangeLog.md
+++ b/doc/ChangeLog.md
@@ -1,7 +1,17 @@
-Version 2.2.0
--------------
+Version 3.0.0
+=============
 
-App4triqs Version 2.2.0 provides a project
+app4triqs version 3.0.0 is a compatibility
+release for TRIQS version 3.0.0 that
+* introduces compatibility with Python 3 (Python 2 no longer supported)
+* adds a cmake-based dependency management
+* fixes several application issues
+
+
+Version 2.2.0
+=============
+
+app4triqs Version 2.2.0 provides a project
 skeleton for TRIQS applications based on
 the TRIQS Library Version 2.2.0.
 It is intended for applications with both

From 7047ac8373f74b81798f72da2852a17ba9c37d9e Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Thu, 6 Aug 2020 13:36:09 -0400
Subject: [PATCH 13/17] Add template for conda packaging

---
 packaging/conda/build.sh                | 22 ++++++++++
 packaging/conda/conda_build_config.yaml |  3 ++
 packaging/conda/meta.yaml               | 57 +++++++++++++++++++++++++
 3 files changed, 82 insertions(+)
 create mode 100644 packaging/conda/build.sh
 create mode 100644 packaging/conda/conda_build_config.yaml
 create mode 100644 packaging/conda/meta.yaml

diff --git a/packaging/conda/build.sh b/packaging/conda/build.sh
new file mode 100644
index 00000000..e3d1f540
--- /dev/null
+++ b/packaging/conda/build.sh
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+mkdir build
+cd build
+
+# Openmpi Specific environment setup - Cf. https://github.com/conda-forge/libnetcdf-feedstock/pull/80
+export OMPI_MCA_btl=self,tcp
+export OMPI_MCA_plm=isolated
+export OMPI_MCA_rmaps_base_oversubscribe=yes
+export OMPI_MCA_btl_vader_single_copy_mechanism=none
+mpiexec="mpiexec --allow-run-as-root"
+
+source $PREFIX/share/triqsvars.sh
+
+cmake \
+    -DCMAKE_INSTALL_PREFIX=$PREFIX \
+    -DCMAKE_BUILD_TYPE=Release \
+    ..
+
+make -j${CPU_COUNT} VERBOSE=1
+CTEST_OUTPUT_ON_FAILURE=1 ctest
+make install
diff --git a/packaging/conda/conda_build_config.yaml b/packaging/conda/conda_build_config.yaml
new file mode 100644
index 00000000..289631fa
--- /dev/null
+++ b/packaging/conda/conda_build_config.yaml
@@ -0,0 +1,3 @@
+mpi:
+  - mpich
+  - openmpi
diff --git a/packaging/conda/meta.yaml b/packaging/conda/meta.yaml
new file mode 100644
index 00000000..2fd369ef
--- /dev/null
+++ b/packaging/conda/meta.yaml
@@ -0,0 +1,57 @@
+{% set version = "3.0.0" %}
+
+package:
+  name: app4triqs
+  version: {{ version }}
+
+source:
+  url: https://github.com/TRIQS/app4triqs/releases/download/{{ version }}/app4triqs-{{ version }}.tar.gz
+  sha256: PUT HERE THE SHA256 OF YOUR RELEASE TARBALL
+
+build:
+  number: 0
+  skip: True  # [win or py<30]
+
+requirements:
+  build:
+    - cmake
+    - make
+    - {{ compiler('c') }}
+    - {{ compiler('cxx') }}
+  host:
+    - triqs {{ '.'.join(version.split('.')[:2]) }}
+    - boost-cpp
+    - hdf5
+    - {{ mpi }}
+    - libblas
+    - liblapack
+    - python
+  run:
+    - {{ pin_compatible("triqs", max_pin="x.x") }}
+    - boost-cpp
+    - hdf5
+    - {{ mpi }}
+    - libblas
+    - liblapack
+    - python
+
+test:
+  commands:
+    - export OMPI_MCA_btl=self,tcp
+    - export OMPI_MCA_plm=isolated
+    - export OMPI_MCA_rmaps_base_oversubscribe=yes
+    - export OMPI_MCA_btl_vader_single_copy_mechanism=none
+    - export mpiexec="mpiexec --allow-run-as-root"
+    - python -c "import app4triqs"
+
+about:
+  home: https://triqs.github.io/app4triqs
+  license: GPL-3.0-or-later
+  license_family: GPL
+  license_file: LICENSE.txt
+  summary: 'An application based on the TRIQS library'
+
+extra:
+  recipe-maintainers:
+    - wentzell
+    - pgunn

From abdc51ca9410253180786feeedd633dca71e2d30 Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Thu, 6 Aug 2020 13:39:09 -0400
Subject: [PATCH 14/17] Add template easybuild script

---
 ...app4triqs-3.0.0-foss-2019a-Python-3.7.2.eb | 65 +++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 packaging/TRIQS-app4triqs-3.0.0-foss-2019a-Python-3.7.2.eb

diff --git a/packaging/TRIQS-app4triqs-3.0.0-foss-2019a-Python-3.7.2.eb b/packaging/TRIQS-app4triqs-3.0.0-foss-2019a-Python-3.7.2.eb
new file mode 100644
index 00000000..e467ccb9
--- /dev/null
+++ b/packaging/TRIQS-app4triqs-3.0.0-foss-2019a-Python-3.7.2.eb
@@ -0,0 +1,65 @@
+easyblock = 'CMakeMake'
+
+name = 'TRIQS-app4triqs'
+version = '3.0.0'
+versionsuffix = '-Python-%(pyver)s'
+
+homepage = 'https://triqs.github.io/app4triqs/'
+description = """
+ TRIQS (Toolbox for Research on Interacting Quantum Systems) is a
+ scientific project providing a set of C++ and Python libraries to
+ develop new tools for the study of interacting quantum systems.
+
+ PROVIDE HERE A DESCRIPTION OF YOUR APPLICATION
+"""
+
+docurls = ['https://triqs.github.io/app4triqs/%(version_major_minor)s.x/']
+software_license = 'LicenseGPLv3'
+
+toolchain = {'name': 'foss', 'version': '2019a'}
+toolchainopts = {'pic': True, 'usempi': True}
+
+source_urls = ['https://github.com/TRIQS/app4triqs/releases/download/%(version)s/']
+sources = ['app4triqs-%(version)s.tar.gz']
+checksums = ['PUT HERE THE SHA256 OF THE RELEASE TARBALL']
+
+dependencies = [
+    ('Python', '3.7.2'),
+    ('SciPy-bundle', '2019.03'),
+    ('Boost', '1.70.0'),
+    ('Clang', '8.0.0'),
+    ('GMP', '6.1.2'),
+    ('HDF5', '1.10.5'),
+    ('Mako', '1.0.8'),
+    ('h5py', '2.9.0'),
+    ('TRIQS', '3.0.0', versionsuffix),
+    ('NFFT', '3.5.1')
+]
+
+builddependencies = [
+    ('CMake', '3.13.3')
+]
+
+separate_build_dir = True
+
+runtest = 'test'
+
+sanity_check_paths = {
+    'files': ['lib/libapp4triqs_c.a'],
+    'dirs': ['include', 'include/app4triqs', 'lib',
+             'lib/python%(pyshortver)s/site-packages', 'share'],
+}
+
+sanity_check_commands = ["python -c 'import app4triqs'"]
+
+modextrapaths = {
+    'CPLUS_INCLUDE_PATH': 'include',
+    'PYTHONPATH': 'lib/python%(pyshortver)s/site-packages',
+    'CMAKE_PREFIX_PATH': 'lib/cmake/app4triqs',
+}
+modextravars = {
+    'APP4TRIQS_ROOT': '%(installdir)s',
+    'APP4TRIQS_VERSION': '%(version)s',
+}
+
+moduleclass = 'phys'

From 182550a831aaf387219ab06a4062030a121031af Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Fri, 7 Aug 2020 10:53:16 -0400
Subject: [PATCH 15/17] [cmake] Make sure imported targets are always global,
 some copyright header adjustments

---
 deps/external_dependency.cmake        | 49 +++++++++++++++++----------
 share/cmake/app4triqs-config.cmake.in |  8 ++++-
 share/cmake/extract_flags.cmake       | 30 +++++++---------
 3 files changed, 50 insertions(+), 37 deletions(-)

diff --git a/deps/external_dependency.cmake b/deps/external_dependency.cmake
index 7ba1b7ad..19dd26dc 100644
--- a/deps/external_dependency.cmake
+++ b/deps/external_dependency.cmake
@@ -1,25 +1,38 @@
-###################################################################################
+# Copyright (c) 2020 Simons Foundation
 #
-# APP4TRIQS: a Toolbox for Research in Interacting Quantum Systems
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-# Copyright (C) 2020 Simons Foundation
-#    authors: N. Wentzell
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
 #
-# APP4TRIQS is free software: you can redistribute it and/or modify it under the
-# terms of the GNU General Public License as published by the Free Software
-# Foundation, either version 3 of the License, or (at your option) any later
-# version.
-#
-# APP4TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
-# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
-# details.
-#
-# You should have received a copy of the GNU General Public License along with
-# APP4TRIQS. If not, see <http://www.gnu.org/licenses/>.
-#
-###################################################################################
+# You may obtain a copy of the License at
+#     https://www.gnu.org/licenses/gpl-3.0.txt
 
+
+# Consider ROOT env variables in find_package
+if(POLICY CMP0074)
+  cmake_policy(SET CMP0074 NEW)
+endif()
+
+# Make sure that imported targets are always global
+get_property(IMPORTED_ALWAYS_GLOBAL GLOBAL PROPERTY IMPORTED_ALWAYS_GLOBAL)
+if(NOT IMPORTED_ALWAYS_GLOBAL)
+  function(add_library)
+    set(_args ${ARGN})
+    if ("${_args}" MATCHES ";IMPORTED")
+        list(APPEND _args GLOBAL)
+    endif()
+    _add_library(${_args})
+  endfunction()
+  set_property(GLOBAL PROPERTY IMPORTED_ALWAYS_GLOBAL TRUE)
+endif()
+
+# Define External Dependency Function
 function(external_dependency)
   cmake_parse_arguments(ARG "EXCLUDE_FROM_ALL;BUILD_ALWAYS" "VERSION;GIT_REPO;GIT_TAG" "" ${ARGN})
 
diff --git a/share/cmake/app4triqs-config.cmake.in b/share/cmake/app4triqs-config.cmake.in
index ef926eff..940e75f6 100644
--- a/share/cmake/app4triqs-config.cmake.in
+++ b/share/cmake/app4triqs-config.cmake.in
@@ -15,7 +15,13 @@ set(@PROJECT_NAME@_GIT_HASH @PROJECT_GIT_HASH@ CACHE STRING "@PROJECT_NAME@ git
 set(@PROJECT_NAME@_ROOT @CMAKE_INSTALL_PREFIX@ CACHE STRING "@PROJECT_NAME@ root directory")
 
 ## Find the target dependencies
-#find_package(... REQUIRED HINTS @CMAKE_INSTALL_PREFIX@)
+#function(find_dep)
+#  get_property(${ARGV0}_FOUND GLOBAL PROPERTY ${ARGV0}_FOUND)
+#  if(NOT ${ARGV0}_FOUND)
+#    find_package(${ARGN} REQUIRED HINTS @CMAKE_INSTALL_PREFIX@)
+#  endif()
+#endfunction()
+#find_dep(depname 1.0)
 
 # Include the exported targets of this project
 include(@CMAKE_INSTALL_PREFIX@/lib/cmake/@PROJECT_NAME@/@PROJECT_NAME@-targets.cmake)
diff --git a/share/cmake/extract_flags.cmake b/share/cmake/extract_flags.cmake
index e00ee628..ed5b6c1f 100644
--- a/share/cmake/extract_flags.cmake
+++ b/share/cmake/extract_flags.cmake
@@ -1,24 +1,18 @@
-###################################################################################
+# Copyright (c) 2019-2020 Simons Foundation
 #
-# TRIQS: a Toolbox for Research in Interacting Quantum Systems
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-# Copyright (C) 2019-2020 Simons Foundation
-#    author: N. Wentzell
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
 #
-# TRIQS is free software: you can redistribute it and/or modify it under the
-# terms of the GNU General Public License as published by the Free Software
-# Foundation, either version 3 of the License, or (at your option) any later
-# version.
-#
-# TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
-# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
-# details.
-#
-# You should have received a copy of the GNU General Public License along with
-# TRIQS. If not, see <http://www.gnu.org/licenses/>.
-#
-###################################################################################
+# You may obtain a copy of the License at
+#     https://www.gnu.org/licenses/gpl-3.0.txt
+
 
 # Recursively fetch all targets that the interface of a target depends upon
 macro(get_all_interface_targets name target)

From 23568264b576b763aa465a9ad8dcdce0a851976c Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Thu, 6 Aug 2020 15:07:35 -0400
Subject: [PATCH 16/17] Replace travis.yml by github workflow

---
 .github/workflows/build.yml | 89 +++++++++++++++++++++++++++++++++++++
 .travis.yml                 | 34 --------------
 2 files changed, 89 insertions(+), 34 deletions(-)
 create mode 100644 .github/workflows/build.yml
 delete mode 100644 .travis.yml

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 00000000..8f1ad4a5
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,89 @@
+name: build
+
+on:
+  push:
+    branches: [ unstable ]
+  pull_request:
+    branches: [ unstable ]
+
+jobs:
+  build:
+
+    strategy:
+      matrix:
+        include:
+          - {os: ubuntu-20.04, cc: gcc-10, cxx: g++-10}
+          - {os: ubuntu-20.04, cc: clang-10, cxx: clang++-10}
+          - {os: macos-10.15, cc: gcc-10, cxx: g++-10}
+          - {os: macos-10.15, cc: /usr/local/opt/llvm/bin/clang, cxx: /usr/local/opt/llvm/bin/clang++}
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Install ubuntu dependencies
+      if: matrix.os == 'ubuntu-20.04'
+      run: >
+        sudo apt-get install
+        clang-10
+        g++-10
+        gfortran
+        hdf5-tools
+        libblas-dev
+        libboost-dev
+        libclang-10-dev
+        libc++-10-dev
+        libc++abi-10-dev
+        libfftw3-dev
+        libgfortran4
+        libgmp-dev
+        libhdf5-dev
+        liblapack-dev
+        libopenmpi-dev
+        openmpi-bin
+        openmpi-common
+        openmpi-doc
+        python3-clang-10
+        python3-dev
+        python3-mako
+        python3-matplotlib
+        python3-mpi4py
+        python3-numpy
+        python3-pip
+        python3-scipy
+        python3-sphinx
+        python3-nbsphinx
+
+    - name: Install homebrew dependencies
+      if: matrix.os == 'macos-10.15'
+      run: |
+        brew install gcc@10 llvm@10 boost fftw hdf5 open-mpi openblas numpy scipy mpi4py
+        pip3 install mako
+        pip3 install -r requirements.txt
+
+    - name: Build & Install TRIQS
+      env:
+        CC: ${{ matrix.cc }}
+        CXX: ${{ matrix.cxx }}
+      run: |
+        git clone https://github.com/TRIQS/triqs --branch unstable
+        mkdir triqs/build && cd triqs/build
+        cmake .. -DBuild_Tests=OFF -DCMAKE_INSTALL_PREFIX=$HOME/install
+        make -j1 install VERBOSE=1
+        cd ../
+
+    - name: Build app4triqs
+      env:
+        CC: ${{ matrix.cc }}
+        CXX: ${{ matrix.cxx }}
+      run: |
+        source $HOME/install/share/triqsvars.sh
+        mkdir build && cmake -B build
+        cmake --build build -j2
+
+    - name: Test app4triqs
+      run: |
+        source $HOME/install/share/triqsvars.sh
+        cd build
+        ctest -j2 --output-on-failure
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 7e3b6f87..00000000
--- a/.travis.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-
-language: cpp
-sudo: required
-dist: bionic
-
-compiler:
-  - gcc
-  - clang
-
-before_install:
-  - sudo apt-get update
-  - sudo apt-get install -y --allow-unauthenticated libblas-dev libboost-all-dev libfftw3-dev libgfortran3 libhdf5-serial-dev libgmp-dev liblapack-dev libopenmpi-dev libclang-dev python-clang-6.0 python-dev python-h5py python-mako python-matplotlib python-mpi4py python-numpy python-scipy python-sphinx libjs-mathjax libnfft3-dev
-
-install: true
-
-script:
-  - export INSTALL_DIR=$HOME/root_install # We install outside the repository
-  # ===== Set up TRIQS
-  - cd $TRAVIS_BUILD_DIR
-  - git clone https://github.com/TRIQS/triqs --branch unstable
-  - mkdir triqs/build && cd triqs/build
-  - cmake .. -DBuild_Tests=OFF -DCMAKE_INSTALL_PREFIX=$INSTALL_DIR
-  - make -j2 install
-  - source $INSTALL_DIR/share/triqsvars.sh
-  # ===== Set up app4triqs and test
-  - cd $TRAVIS_BUILD_DIR
-  - mkdir build && cd build
-  - cmake .. -DASAN=ON -DUBSAN=ON
-  - export UBSAN_SYMBOLIZER_PATH=$(which llvm-symbolizer)
-  - export ASAN_SYMBOLIZER_PATH=$(which llvm-symbolizer)
-  - export UBSAN_OPTIONS=symbolize=1:print_stacktrace=1
-  - export ASAN_OPTIONS=symbolize=1:detect_leaks=0
-  - export CTEST_OUTPUT_ON_FAILURE=1
-  - make -j2 && make test

From e31cbd0f766749ef7ed6bbd3963376ccf80bb9c2 Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Sat, 8 Aug 2020 15:24:13 -0400
Subject: [PATCH 17/17] [doc] Update status badge for GH Actions

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 67c9f481..52e2c0b4 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[![Build Status](https://travis-ci.org/TRIQS/app4triqs.svg?branch=unstable)](https://travis-ci.org/TRIQS/app4triqs)
+[![build](https://github.com/TRIQS/app4triqs/workflows/build/badge.svg)](https://github.com/TRIQS/app4triqs/actions?query=workflow%3Abuild)
 
 # app4triqs - A skeleton for a TRIQS application