Ccache: fixes (#61)

* [osx] don't update homebrew

* [docker] move activate_ccache until after utils are loaded

* [manylinux_utils] create cccache directory

* [manylinux_utils] fix case

* [osx/ccache] disable maxsize

* [osx_utils] move  code and add comment

docker_build_wrap.sh

@@ -7,10 +7,6 @@
 #   BUILD_DEPENDS  (may be used by config.sh, can be empty)
 set -e
 
-if [ "$USE_CCACHE" == "1" ]; then
-    activate_ccache
-fi
-
 # Unicode width, default 32
 UNICODE_WIDTH=${UNICODE_WIDTH:-32}
 
@@ -23,6 +19,10 @@ MULTIBUILD_DIR=$(dirname "${BASH_SOURCE[0]}")
 source $MULTIBUILD_DIR/manylinux_utils.sh
 source $MULTIBUILD_DIR/library_builders.sh
 
+if [ "$USE_CCACHE" == "1" ]; then
+    activate_ccache
+fi
+
 # Set PATH for chosen Python, Unicode width
 export PATH="$(cpython_path $PYTHON_VERSION $UNICODE_WIDTH)/bin:$PATH"
 

manylinux_utils.sh

@@ -52,6 +52,7 @@ function repair_wheelhouse {
 
 function activate_ccache {
     # Link up the correct location for ccache
+    mkdir -p /parent-home/.ccache
     ln -s /parent-home/.ccache $HOME/.ccache
 
     # Now install ccache
@@ -62,11 +63,11 @@ function activate_ccache {
     # but I had trouble finding them
     local ccache_dir=/usr/lib/ccache/compilers
     mkdir -p $ccache_dir
-    ln -s /usr/bin/ccache $CCACHE_DIR/gcc
-    ln -s /usr/bin/ccache $CCACHE_DIR/g++
-    ln -s /usr/bin/ccache $CCACHE_DIR/cc
-    ln -s /usr/bin/ccache $CCACHE_DIR/c++
-    export PATH=$CCACHE_DIR:$PATH
+    ln -s /usr/bin/ccache $ccache_dir/gcc
+    ln -s /usr/bin/ccache $ccache_dir/g++
+    ln -s /usr/bin/ccache $ccache_dir/cc
+    ln -s /usr/bin/ccache $ccache_dir/c++
+    export PATH=$ccache_dir:$PATH
 
     # Prove to the developer that ccache is activated
     which gcc

osx_utils.sh

@@ -267,9 +267,6 @@ function set_py_vars {
 }
 
 function get_macpython_environment {
-    if [ "$USE_CCACHE" == "1" ]; then
-        activate_ccache
-    fi
     # Set up MacPython environment
     # Parameters:
     #     $version : [implementation-]major[.minor[.patch]]
@@ -285,10 +282,19 @@ function get_macpython_environment {
     # Puts directory of $PYTHON_EXE on $PATH
     local version=$1
     local venv_dir=$2
+
+    # We MUST set this before calling homebrew or it could potentially fail
+    # See travis-ci issue #8552 for more details
+    export HOMEBREW_NO_AUTO_UPDATE=1
+
+    if [ "$USE_CCACHE" == "1" ]; then
+        activate_ccache
+    fi
+    
     remove_travis_ve_pip
     install_macpython $version
     install_pip
-    export HOMEBREW_NO_AUTO_UPDATE=1
+
     if [ -n "$venv_dir" ]; then
         install_virtualenv
         make_workon_venv $venv_dir
@@ -338,10 +344,9 @@ function install_pkg_config {
 }
 
 function activate_ccache {
-    brew update
+
     brew install ccache
     export PATH=/usr/local/opt/ccache/libexec:$PATH
-    export CCACHE_MAXSIZE=200M
     export CCACHE_CPP2=1
 
     # Prove to the developer that ccache is activated