ci: Dump $NVIM_LOG_FILE contents

.travis.yml

@@ -21,6 +21,8 @@ env:
     - INSTALL_PREFIX="$HOME/nvim-install"
     # Log directory for Clang sanitizers and Valgrind.
     - LOG_DIR="$BUILD_DIR/log"
+    # Nvim log file.
+    - NVIM_LOG_FILE="$BUILD_DIR/.nvimlog"
     # Default CMake flags.
     - CMAKE_FLAGS="-DTRAVIS_CI_BUILD=ON
                    -DCMAKE_BUILD_TYPE=Debug

ci/common/suite.sh

@@ -39,6 +39,13 @@ enter_suite() {
 
 exit_suite() {
   set +x
+  if test -f "$NVIM_LOG_FILE" ; then
+    printf "===============================================================================\n"
+    printf "NVIM_LOG_FILE: $NVIM_LOG_FILE\n"
+    cat "$NVIM_LOG_FILE" 2>/dev/null || printf '(empty)'
+    printf "\n"
+    rm -rf "$NVIM_LOG_FILE"
+  fi
   travis_fold end "${NVIM_TEST_CURRENT_SUITE}"
   if test $FAILED -ne 0 ; then
     echo "Suite ${NVIM_TEST_CURRENT_SUITE} failed, summary:"

src/nvim/testdir/runtest.vim

@@ -74,7 +74,7 @@ set backspace=
 set nohidden smarttab noautoindent noautoread complete-=i noruler noshowcmd
 set listchars=eol:$
 " Prevent Nvim log from writing to stderr.
-let $NVIM_LOG_FILE='Xnvim.log'
+let $NVIM_LOG_FILE = exists($NVIM_LOG_FILE) ? $NVIM_LOG_FILE : 'Xnvim.log'
 
 func RunTheTest(test)
   echo 'Executing ' . a:test

src/nvim/testdir/shared.vim

@@ -187,7 +187,7 @@ func RunVim(before, after, arguments)
 endfunc
 
 func RunVimPiped(before, after, arguments, pipecmd)
-  let $NVIM_LOG_FILE='Xnvim.log'
+  let $NVIM_LOG_FILE = exists($NVIM_LOG_FILE) ? $NVIM_LOG_FILE : 'Xnvim.log'
   let cmd = GetVimCommand()
   if cmd == ''
     return 0