chore: restore prefix

Author: achingbrain

.travis.yml

@@ -27,11 +27,17 @@ os:
 before_install:
   # prevents windows error: npm ERR! ... git-sh-setup: file not found
   - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then export PATH=/c/PROGRA~1/Git/usr/bin:/c/PROGRA~1/Git/mingw64/libexec/git-core:$PATH ; fi
+  # change default prefix for windows - https://travis-ci.community/t/command-npm-i-g-npm-latest-fails/431/7
+  - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then echo $NPM_CONFIG_PREFIX; fi
+  - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then export NPM_CONFIG_PREFIX_ORIG=$NPM_CONFIG_PREFIX; fi
+  - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then export NPM_CONFIG_PREFIX=c:\\npm_prefix PATH=/c/npm_prefix:$PATH; fi
   # workspaces require npm 7 or above
-  - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then export NPM_CONFIG_PREFIX=c:\\npm_prefix PATH="/c/npm_prefix:$PATH"; fi
   - npm install -g npm@latest
-  # allow windows to run scripts with node 14 and npm 7 (may not be necessary when node 14 is no longer lts)
+  # restore default prefix for windows - https://travis-ci.community/t/command-npm-i-g-npm-latest-fails/431/7
+  - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then export NPM_CONFIG_PREFIX=$NPM_CONFIG_PREFIX_ORIG; fi
+  # the default path is broken up with node 14 and npm 7 on Windows - https://github.com/npm/cli/issues/2665
   - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then export PATH=`npm prefix -g`:$PATH ; fi
+  # allow windows to run scripts with node 14 and npm 7 (may not be necessary when node 14 is no longer lts)
   - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then npm config set script-shell c:/PROGRA~1/Git/bin/bash.exe ; fi
   - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then npm config set loglevel verbose ; fi