Is it possible to flag/set/update snap as "Deprecated" and link to new Snap?

snapcraft
1

Hi all,
Is it possible to flag/set/update snap as “Deprecated” and link to new Snap?
OR
When someone try to install it, show a message say “This snap is deprecated, Please install the new snap…”?

Thanks in advance!

2

the latter shoudl work, there are serveral tutorials and examples here in the forum using yad to show such messages …

1 Like
3

Thank you on the fast response.
My snap is installed only using terminal… not GUI…
Can I write a message and exit the installation in a nice way? without error message?

Thanks again

4

ah, in that case you can just add a command-chain script that shows the message before launching the app itself …

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5

Sorry but I’m not sure I understand…
Something like:

my-app-name:
command: echo “‘alero-connector’ command is depricated. Please call ‘remote-access-cli’ command instead.”

This means that the installation will complete successfully and the message will written only when trying to call the command?

6

You create a script like below and ship it in your snap

#! /bin/sh

echo "The foo snap is deprecated. Please install the bar  snap instead to recieve further regular updates !"
read -n 1 -s -r -p "Press any key to continue"

exec "$@"

lets say you call it “warning-wrapper” then you need to add it as a prefix to your command: entry … i.e.

apps:
  mycommand:
    command: bin/foo

becomes

apps:
  mycommand:
    command: warning-wrapper $SNAP/bin/foo
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7

Thank you.
And if I want that the “snap install mysnap” command will fail with the message? Is it possible?

8

that is something you would do from an install hook (simply by making it “exit 1”), though i am not sure it will use stdout, it might only print whatever you echo in the hook to the journal/syslog … you have to try …

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9

Maybe it’s not a good idea after all - the auto-update of the snap will probably fail(because the installation will fail)… I will implement your first suggestion. Thanks! :slight_smile:

10

I’m keep getting the following error:
“x1/warning-wrapper: 4: read: Illegal option -n”

This probably depends on the shell the client uses… do you have other suggestion for “Press any key to continue”?

I can change it to “Press enter to continue” but I prefer the “any key” option

11

try changing /bin/sh to /bin/bash in the first line … i forgot that read is a shell builtin, so it behaves a little different in sh …

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