From: Eli Schwartz <eschwartz@archlinux.org>
Date: Mon, 31 Jan 2022 03:38:04 +0000 (-0500)
Subject: travis CI: update meson image to one with a python that isn't EOL
X-Git-Tag: v1.5.4^2~218^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F3039%2Fhead;p=thirdparty%2Fzstd.git

travis CI: update meson image to one with a python that isn't EOL

Currently the build errors out with:

```
ERROR: This script does not work on Python 3.6 The minimum supported Python version is 3.7. Please use https://bootstrap.pypa.io/pip/3.6/get-pip.py instead.
```

While in theory this advice could be followed to get a better pip on
xenial, Meson has now deprecated python 3.6 support too, and the next
(unreleased) version requires python 3.7

There are a couple solutions to this:
- hold the version of pip, allow pip to only install 3.6-compatible
  versions of meson (effectively freezing meson going forward)
- install python 3.7 on xenial
- update to a 2-year-old image instead of a 4-year-old one

Option 3 is the simplest.
---

diff --git a/.travis.yml b/.travis.yml
index 6a1295b4c..34cf0e1ae 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -92,8 +92,8 @@ matrix:
         - make -C tests versionsTest
 
     # meson dedicated test
-    - name: Xenial (Meson + clang)    # ~15mn
-      dist: bionic
+    - name: Focal (Meson + clang)    # ~15mn
+      dist: focal
       language: cpp
       compiler: clang
       install: