CLI-1225: The pull:database command fails silently if pv is not installed. #1641
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Motivation
Fixes #1640: The pull:database command fails silently if pv is not installed
Proposed changes
if pv is not installed, run gunzip with the -c flag so the decompressed output is piped to the mysql command
Alternatives considered
There are other possible ways to manage output redirection in bash, this seemed simplest.
Testing steps
On a system without pv installed set the appropriate ACLI_DB_**** environmental variables and execute an acli pull:database request. See the database downloaded and the command appear to succeed. Open the database and see that it is not empty.
./bin/acli ckc