Remove Travis configuration from flutter/flutter (#20288)
This removes the final traces of Travis and Appveyor from the Flutter tree.
I've updated the documentation and fixed a couple of places where scripts look for Travis, and eliminated the dart tools runningOnTravis function (which was unused anyhow).
There are places in the flutter script that used to look for the environment variable TRAVIS. We actually do want to continue to detect that we're running on Travis there, since in the plugins repo we still use Travis (for the moment). In any case, it's OK, because the CI environment variable is set on all of the CI bots (Cirrus, Travis, and Appveyor).
FastLane doesn't have a setup_cirrus equivalent to setup_travis, but it actually doesn't matter there either, since it doesn't do Travis-specific things, and it also looks for the CI environment variable.
diff --git a/dev/devicelab/README.md b/dev/devicelab/README.md
index 4450ee0..2a0eba6 100644
--- a/dev/devicelab/README.md
+++ b/dev/devicelab/README.md
@@ -64,7 +64,7 @@
The example below shows that commit `e122d5d` caused a wide-spread breakage,
-which was fixed by `bdc6f10`. It also shows that Travis, AppVeyor and Chrome
+which was fixed by `bdc6f10`. It also shows that Cirrus and Chrome
Infra (left-most tasks) decided to skip building these commits. Hovering over
a cell will pop up a tooltip containing the name of the broken task. Clicking
on the cell will open the log file in a new browser tab (only visible to core
@@ -75,9 +75,9 @@
## Why is a task stuck on "new task" status?
The dashboard aggregates build results from multiple build environments,
-including Travis, AppVeyor, Chrome Infra, and devicelab. While devicelab
+including Cirrus, Chrome Infra, and devicelab. While devicelab
tests every commit that goes into the `master` branch, other environments
-may skip some commits. For example, Travis and AppVeyor will only test the
+may skip some commits. For example, Cirrus will only test the
_last_ commit of a PR that's merged into the `master` branch. Chrome Infra may
skip commits when they come in too fast.
diff --git a/dev/devicelab/manifest.yaml b/dev/devicelab/manifest.yaml
index 5621cdb..78388f9 100644
--- a/dev/devicelab/manifest.yaml
+++ b/dev/devicelab/manifest.yaml
@@ -17,7 +17,7 @@
# * stage: one of "devicelab", "devicelab_ios", "devicelab_win"
# tasks are grouped by stage so they appear next to each on the dashboard and have a distinct
# icon attached to them. Stages can be used to create dependencies, e.g. we may decide to not
-# run device tests on red Travis.
+# run device tests on red Cirrus builds.
# * required_agent_capabilities: a list of strings
# list of capabilities a devicelab agent must have to be able to run this task.
#
