Support cygwin?

[abcfy2]

• Operating system and version:
  windows 10

• nvm debug output:

nvm --version: v0.33.0
$SHELL: /bin/bash
$HOME: /home/abcfy
$NVM_DIR: '$HOME/.nvm'
$PREFIX: ''
$NPM_CONFIG_PREFIX: ''
nvm current: none
which node: which: no node in ($HOME/.sdkman/candidates/maven/current/bin:$HOME/.sdkman/candidates/groovy/current/bin:$HOME/.sdkman/candidates/grails/current/bin:$HOME/.sdkman/candidates/gradle/current/bin:/usr/local/bin:/usr/bin:/cygdrive/c/Windows/system32:/cygdrive/c/Windows:/cygdrive/c/Windows/System32/Wbem:/cygdrive/c/Windows/System32/WindowsPowerShell/v1.0:/cygdrive/c/Program Files (x86)/Windows Kits/10/Windows Performance Toolkit:/cygdrive/c/Users/abcfy/AppData/Local/Microsoft/WindowsApps)
which iojs: which: no iojs in ($HOME/.sdkman/candidates/maven/current/bin:$HOME/.sdkman/candidates/groovy/current/bin:$HOME/.sdkman/candidates/grails/current/bin:$HOME/.sdkman/candidates/gradle/current/bin:/usr/local/bin:/usr/bin:/cygdrive/c/Windows/system32:/cygdrive/c/Windows:/cygdrive/c/Windows/System32/Wbem:/cygdrive/c/Windows/System32/WindowsPowerShell/v1.0:/cygdrive/c/Program Files (x86)/Windows Kits/10/Windows Performance Toolkit:/cygdrive/c/Users/abcfy/AppData/Local/Microsoft/WindowsApps)
which npm: which: no npm in ($HOME/.sdkman/candidates/maven/current/bin:$HOME/.sdkman/candidates/groovy/current/bin:$HOME/.sdkman/candidates/grails/current/bin:$HOME/.sdkman/candidates/gradle/current/bin:/usr/local/bin:/usr/bin:/cygdrive/c/Windows/system32:/cygdrive/c/Windows:/cygdrive/c/Windows/System32/Wbem:/cygdrive/c/Windows/System32/WindowsPowerShell/v1.0:/cygdrive/c/Program Files (x86)/Windows Kits/10/Windows Performance Toolkit:/cygdrive/c/Users/abcfy/AppData/Local/Microsoft/WindowsApps)
npm config get prefix: -bash: npm: command not found
npm root -g: -bash: npm: command not found

• nvm ls output:

            N/A
node -> stable (-> N/A) (default)
iojs -> N/A (default)
lts/* -> lts/boron (-> N/A)
lts/argon -> v4.7.3 (-> N/A)
lts/boron -> v6.9.5 (-> N/A)

• How did you install nvm? (e.g. install script in readme, homebrew):
  install script in readme

• What steps did you perform?
  nvm install --lts

• What happened?

Installing latest LTS version.
Local cache found: $NVM_DIR/.cache/src/node-v6.9.5/node-v6.9.5.tar.xz
Checksums match! Using existing downloaded archive $NVM_DIR/.cache/src/node-v6.9.5/node-v6.9.5.tar.xz

... SNIP ...

/usr/bin/python tools/gyp_node.py -f make
gyp: name 'MSVS_VERSION' is not defined while evaluating condition '(OS=="win" and MSVS_VERSION>="2012") or llvm_version>="3.3" or xcode_version>="5.0" or gas_version>="2.23"' in /home/abcfy/.nvm/.cache/src/node-v6.9.5/files/deps/openssl/openssl.gyp
make: *** [Makefile:76: out/Makefile] Error 1
nvm: install v6.9.5 failed!

I've tried many times, and I've already installed msvs 2015, gcc, and llvm but no help.

Maybe we could download windows pre-built binary from https://nodejs.org/dist/v6.9.5/node-v6.9.5-win-x64.7z ?

[ljharb]

nvm supports POSIX only. While BashOnWindows is POSIX-compliant, I don't believe cygwin is or ever plans to be.

If BashOnWindows isn't an option, the readme lists Windows alternatives.

[thoni56]

Just for clarity, cygwin is not windows. It attempts to provide a substantial POSIX API functionality. Don't know how "fully" it needs to be for nvm, nor how "fully" they are striving for.

But the support is extensive enough to compile a host of programs almost out of the box.

Not bashing, just came here by looking specifically for nvm on cygwin.

And it seemed to be no problem installing nvm using the curl-command in the readme.

[ljharb]

Theoretically nvm works on anything POSIX-compliant, but i don’t think node offers that same guarantee.

[DanKaplanSES]

The documentation says nvm works on Cygwin. Should this issue be reopened (or recreated, I don't know if the documentation said this at the time of issue creation)? Either way, I've been able to get node to run fine in Cygwin: it's possible this is issue is caused within the nvm source.

[ljharb]

@DanKaplanSES in 2018, nvm did not support cygwin. now, it does.

[manminusone]

There appears to be a reliance on curl for Cygwin installs. Without the command line tool installed I get an error when attempting to install:

$  nvm install --lts
Installing latest LTS version.
Downloading and installing node v20.16.0...
Downloading https://nodejs.org/dist/v20.16.0/node-v20.16.0-win-x64.zip...
Warning: Failed to open the file
Warning: /home/james/.nvm/.cache/bin/node-v20.16.0-win-x64/node-v20.16.0-win-x6
Warning: 4.zip: No such file or directory
curl: (23) client returned ERROR on write of 3610 bytes

Binary download from https://nodejs.org/dist/v20.16.0/node-v20.16.0-win-x64.zip failed, trying source.
grep: /home/james/.nvm/.cache/bin/node-v20.16.0-win-x64/node-v20.16.0-win-x64.zip: No such file or directory
Provided file to checksum does not exist.
Binary download failed, trying source.
Installing from source on non-WSL Windows is not supported)

Installing curl resolves the issue. Is the reliance on curl documented, or is it just assumed that it's installed?

[ljharb]

curl: (23) client returned ERROR on write of 3610 bytes

this means curl is installed, altho perhaps it’s picking up on a windows installation of it?

Yea, the readme documents that curl or wget is required.

[manminusone]

My problem appears when only wget is installed in the Cygwin environment. There appears to be a Windows curl executable located at C:\Windows\System32\curl.exe, and that's the one that nvm is apparently using.

ETA: This appears to be part of Windows 11.

[ljharb]

Thanks; I believe that's very similar to #3393 and might be already filed as #3391.