Terminal size is 0 on CI and so diff and deploy throws exception when trying to create table of changes

Describe the bug In some CI setups (CircleCI and Jenkins), process.stdout.column can return 0 and so when the cdk uses the table library to create the table of resources to print to logs it throws an exception as terminal width cannot be 0.

To Reproduce Run any cdk diff or cdk deploy command on a terminal with 0 width or on a CI setup where process.stdout.column returns 0

CI Logs https://circleci.com/gh/CSmither/aws-cdk-demo/30

> stack@0.1.0 cdk /home/circleci/repo/stack
> cdk "deploy"

COLUMN WIDTH ===> 0
This deployment will make potentially sensitive changes according to your current security approval level (--require-approval broadening).
Please confirm you intend to make the following modifications:

IAM Statement Changes
Column width must be greater than 0.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! stack@0.1.0 cdk: `cdk "deploy"`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the stack@0.1.0 cdk script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/circleci/.npm/_logs/2019-04-12T07_25_54_317Z-debug.log
Exited with code 1

Expected behavior Print a table of the stack to logs and continue on to either describe diff or deploy stack

Version:

• OS: Linux host with docker image (circleci/node:11.9.0-stretch)
• Language: Node Typescript
• CDK Version: 0.28.0 from npm

Notes Stack overflow post just to link them

[mt-yohei-koyama]

I use stty rows ROW_NUMBER cols COLUMN_NUMBER as a workaround for CircleCI. Example:

- run:
    name: diff
    command: |
      stty rows 64 cols 204
      npx cdk diff --app "npx ts-node bin/A.ts"

Just FYI for CircleCI and cdk user.

[eladb]

Thanks for reporting!