从Shell脚本中运行已安装的节点程序

Question

I have used nvm to setup a specific node version,

nvm install 9.11.1

I have a nodejs program built and installed:

npm install -g osmlint

This is the full path of the newly minted executable:

which osmlint
/root/.nvm/versions/node/v9.11.1/bin/osmlint

I run it with the following command:

/root/.nvm/versions/node/v9.11.1/bin/osmlint crossingbuildings --bbox="[72.9,18.8,73,18.9]" --zoom=12 india.mbtiles > test.txt

And it works fine.

I've put the same in a bash shell script. (say, run1.sh ). But when I run the shell script, it errors out.

internal/modules/cjs/loader.js:775
    throw err;
    ^

Error: Cannot find module '/root/.nvm/versions/node/v9.11.1/lib/node_modules/osmlint/node_modules/@mapbox/tile-reduce/node_modules/sqlite3/lib/binding/node-v72-linux-x64/node_sqlite3.node'
Require stack:
- /root/.nvm/versions/node/v9.11.1/lib/node_modules/osmlint/node_modules/@mapbox/tile-reduce/node_modules/sqlite3/lib/sqlite3.js
- /root/.nvm/versions/node/v9.11.1/lib/node_modules/osmlint/node_modules/@mapbox/tile-reduce/node_modules/@mapbox/mbtiles/lib/mbtiles.js
- /root/.nvm/versions/node/v9.11.1/lib/node_modules/osmlint/node_modules/@mapbox/tile-reduce/src/index.js
- /root/.nvm/versions/node/v9.11.1/lib/node_modules/osmlint/validators/crossingBuildings/index.js
- /root/.nvm/versions/node/v9.11.1/lib/node_modules/osmlint/cli.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:772:15)
    at Function.Module._load (internal/modules/cjs/loader.js:677:27)
    at Module.require (internal/modules/cjs/loader.js:830:19)
    at require (internal/modules/cjs/helpers.js:68:18)
    at Object.<anonymous> (/root/.nvm/versions/node/v9.11.1/lib/node_modules/osmlint/node_modules/@mapbox/tile-reduce/node_modules/sqlite3/lib/sqlite3.js:4:15)
    at Module._compile (internal/modules/cjs/loader.js:936:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:947:10)
    at Module.load (internal/modules/cjs/loader.js:790:32)
    at Function.Module._load (internal/modules/cjs/loader.js:703:12)
    at Module.require (internal/modules/cjs/loader.js:830:19) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/root/.nvm/versions/node/v9.11.1/lib/node_modules/osmlint/node_modules/@mapbox/tile-reduce/node_modules/sqlite3/lib/sqlite3.js',
    '/root/.nvm/versions/node/v9.11.1/lib/node_modules/osmlint/node_modules/@mapbox/tile-reduce/node_modules/@mapbox/mbtiles/lib/mbtiles.js',
    '/root/.nvm/versions/node/v9.11.1/lib/node_modules/osmlint/node_modules/@mapbox/tile-reduce/src/index.js',
    '/root/.nvm/versions/node/v9.11.1/lib/node_modules/osmlint/validators/crossingBuildings/index.js',
    '/root/.nvm/versions/node/v9.11.1/lib/node_modules/osmlint/cli.js'
  ]
}

Apparently the same node environment isn't in effect inside the shell script's bash environment. How do we make this work?

Answer 1

To run the node executable from shell script, we need to set the node environment.

nvm use 9.11.1

But even nvm is unknown to the bash environment of the shell script. So, need to set that up.

source /root/.nvm/nvm.sh

Combined commands:

# required : initialize nvm, then make it set the current node version to v9.11.1
source /root/.nvm/nvm.sh
nvm use 9.11.1
# run osmlint. # mention full path of executable.
/root/.nvm/versions/node/v9.11.1/bin/osmlint crossingbuildings --bbox="[72.9,18.8,73,18.9]" --zoom=12 india.mbtiles > test.txt

..and that worked. Sharing this in case others like me get stuck with having to run a node program from inside a shell script.