tree ee7616cacac2f77ef456076985e290c1a8ab1a66
parent 595ea383848eb3a43e845fef4e7cf02909a6b702
author Eli Lipsitz <elipsitz@google.com> 1673995960 +0000
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1673995960 +0000

pw_build: Make pw-wrap-ninja avoid terminal codes if non-interactive

This commit makes the pw-wrap-ninja script avoid the use of ANSI
terminal codes if it detects that it is running in a non-interactive
context.

This follows the same logic as Ninja: a terminal is interactive if
all of the following are true:
1) stdout is a TTY
2) the TERM environment variable is set
3) the TERM environment variable is not "dumb"

In this mode, the script will avoid printing out the live progress
display (as this requires terminal codes). Instead, it'll just print out
whenever an action finishes, along with any output from the action.

Tested:
  Ran pw-wrap-ninja piped to tee, saw that the progress display
  was hidden, no ANSI escapes were visible, and the 'Finished...' lines
  were printed.
Change-Id: I9a6a95599782f57ca422ee9af5bf5e5ad54678c6
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/126172
Reviewed-by: Rob Mohr <mohrr@google.com>
Pigweed-Auto-Submit: Eli Lipsitz <elipsitz@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>