[gtk: 2/2] Merge branch 'ebassi/rev-parse-fallback' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

commit 8670034c86f8a36910a99bb794f98cf328de2b6c
Merge: 9066078928 c1fbf654a0
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon May 17 21:13:04 2021 +0000

    Merge branch 'ebassi/rev-parse-fallback' into 'master'
    
    build: Check CI envvars before rev-parse
    
    See merge request GNOME/gtk!3559

 build-aux/meson/gen-demo-header.py | 21 +++++++++++++++++++++
 demos/meson.build                  | 21 +++++++++------------
 2 files changed, 30 insertions(+), 12 deletions(-)
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