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May 20, 2018 18:21
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Save SOSANA/e223e6f75a1f95f92d6f0abd30eae3f0 to your computer and use it in GitHub Desktop.
Update npm on windows using nvm-windows. Script runs latest, npm version just replace "latest" with version desired. Place script in nvm root folder C:\Users\<user>\AppData\Roaming\nvm or run %appdata% to locate nvm folder
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@echo off | |
SETLOCAL EnableDelayedExpansion | |
if [%1] == ["latest"] ( | |
echo Pass in the version you would like to install, or "latest" to install the latest npm version. | |
) else ( | |
set wanted_version="latest" | |
if "!wanted_version!" == "latest" ( | |
for /f %%i in ('npm show npm version') do set wanted_version=%%i | |
) | |
for /f %%i in ('npm -g -v') do set cur_version=%%i | |
if "!cur_version!" == "!wanted_version!" ( | |
echo Already on npm version !wanted_version!. | |
) else ( | |
echo Updating to !wanted_version!... | |
set node_path=!PROGRAMFILES!\nodejs | |
rename "!node_path!\npm" npm2 | |
rename "!node_path!\npm.cmd" npm2.cmd | |
rename "!node_path!\node_modules\npm" npm2 | |
node "!node_path!\node_modules\npm2\bin\npm-cli.js" i npm@!wanted_version! -g | |
for /f %%i in ('npm -g -v') do set new_version=%%i | |
echo New version installed is !new_version! | |
if "!new_version!" == "!wanted_version!" ( | |
echo Successfully updated to !wanted_version!. Cleaning up backups... | |
del "!node_path!\npm2" | |
del "!node_path!\npm2.cmd" | |
@RD /S /Q "!node_path!\node_modules\npm2" | |
echo Update complete. | |
) else ( | |
echo Something went wrong. Rolling back. | |
if exist "!node_path!\npm" ( | |
del "!node_path!\npm" | |
) | |
if exist "!node_path!\npm.cmd" ( | |
del "!node_path!\npm.cmd" | |
) | |
if exist "!node_path!\node_modules\npm" ( | |
@RD /S /Q "!node_path!\node_modules\npm" | |
) | |
rename "!node_path!\npm2" npm | |
rename "!node_path!\npm2.cmd" npm.cmd | |
rename "!node_path!\node_modules\npm2" npm | |
) | |
) | |
) |
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