Use set -ex in all bash scripts

contrib/build_bin.sh

@@ -1,6 +1,8 @@
 #! /bin/bash
 # Script for building standalone binary releases deterministically
 
+set -ex
+
 eval "$(pyenv init -)"
 eval "$(pyenv virtualenv-init -)"
 pip install -U pip

contrib/build_dist.sh

@@ -1,6 +1,8 @@
 #! /bin/bash
 # Script for building pypi distribution archives deterministically
 
+set -ex
+
 eval "$(pyenv init -)"
 eval "$(pyenv virtualenv-init -)"
 pip install -U pip

contrib/build_wine.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Script which sets up Wine and builds the Windows standalone binary
 
-set -e
+set -ex
 
 PYTHON_VERSION=3.6.8
 

contrib/generate-ui.sh

@@ -1,5 +1,7 @@
 #! /bin/bash
 
+set -ex
+
 pushd hwilib/ui
 for file in *.ui
 do

contrib/generate_setup.sh

@@ -1,7 +1,7 @@
 #! /bin/bash
 # Generates the setup.py file
 
-set -e
+set -ex
 
 # Setup poetry and install the dependencies
 poetry install -E qt