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@ststeiger
Forked from johnmcase/updateNpm.bat
Last active Mar 21, 2019
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What would you like to do?
Update npm on windows
REM see https://github.com/coreybutler/nvm-windows/issues/300
@echo off
SETLOCAL EnableDelayedExpansion
if [%1] == [] (
echo Pass in the version you would like to install, or "latest" to install the latest npm version.
) else (
set wanted_version=%1
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
REM set node_path="D:\Programme\LessPortableApps\node\node-v10.15.3-win-x64"
for %%A in ("%path:;="; "%") do (
echo %%~A | find /i "node" > nul
if not errorlevel 1 (
set node_path="%%~A"
)
)
echo "node_path: %node_path%"
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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