More verbostiy and sensitivity to errors in the installation scripts

.vimrc.common.epilogue

@@ -9,7 +9,11 @@ set t_Co=256
 syntax enable
 set background=dark
 highlight clear SignColumn
-colorscheme solarized
+try
+    colorscheme solarized
+catch /^Vim\%((\a\+)\)\=:E185/
+    colorscheme desert
+endtry
 
 " plugins: airline
 let g:bufferline_echo = 0

common/configure_fresh_system

@@ -118,9 +118,13 @@ if [[ -z $NOVIM ]]; then
         git pull
         git submodule update --init --recursive
     fi
+    echo "Installing fzf"
     ~/.fzf/install --64 --all
+    echo "Installing Vim plugins"
     echo "\n" | vim +PluginInstall +qa
+
     if [[ -z $NOYCM ]]; then
+        "Echo configuring YouCompleteMe"
         cd ~/.vim/bundle/YouCompleteMe
 
         if [[ -z $NOPYTHON3 ]]; then
@@ -139,8 +143,10 @@ if [[ -z $NO_GO ]]; then
     go get -u github.com/exercism/cli/exercism
 fi
 
+echo "Installing Reveal-md"
 # talks: reveal-md
 $SUDO npm install -g reveal-md
+echo "Installing fancy differ"
 $SUDO npm install -g diff-so-fancy
 
 if [[ -z $NOPYTHON3 ]]; then
@@ -149,6 +155,7 @@ else
     PIP=pip
 fi
 
+echo "Installing Nikola"
 $SUDO $PIP install pygments-style-solarized ws4py watchdog webassets Nikola
 
 if [[ -z $USER ]]; then

windows/build_insider.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -e
+
 DOTFILES_PATH="$HOME/dev/dotfiles"
 mkdir -pv $HOME/dev/
 rm -fr $DOTFILES_PATH
@@ -26,5 +28,6 @@ ln -vfs $DIR/.gitconfig.cygwin $HOME/.gitconfig
 ln -vfs $DIR/.vimrc.cygwin $HOME/.vimrc
 
 # reinstall plugins with the new vimrc
+echo "Reinstalling Vim plugins with the correct plugin list"
 echo "\n" | vim +PluginInstall +qa