Retry downloads if they fail due to network timeout

[philsherry]

Your Environment

• mas version: 1.8.1
• Homebrew: 3.0.10
• Homebrew/homebrew-core (git revision 72894f32b1; last commit 2021-03-31)
• Homebrew/homebrew-cask (git revision 4363b2e34d; last commit 2021-03-31)
• macOS version: 10.15.7 (19H524)

mas Install Method

brew install mas (homebrew-core)

Describe the Bug

When running brew update, I’m getting network timeouts from the App Store during the mas section of my Brewfile—all brew and cask dependencies install fine. Screenshots attached.

To Reproduce

1. Run brew update.
2. Wait for brew and cask sections to complete.
3. Once mas section starts, pay attention.
4. See error.

Expected Behavior

I expect Mac App Store installations to go smoothly.

Actual Behavior

Mac App Store installations are interrupted by network timeouts.

Screenshots, Terminal Output

$ brew update
  […]
  Upgrading 1 outdated application:
  Meeter (1.9.3)
  Error: Download request failed: The network connection was lost.
  Installing Meeter has failed!

Additional Context

This works fine on my 11.2.3 Macs, but this issue is on my work Mac. Until now, I've not had this issue on this Mac, but it's been several weeks since I ran updates.

[chris-araman]

@philsherry, is your work Mac configured to use any proxies? System Preferences, Network, Advanced..., Proxies Do you see the same issue when no proxy is configured?

Does it run any particular antimalware, antivirus, or firewall software that may be intercepting network requests? Do you see the same issue when this software is disabled or removed (if possible)?

Does it connect to a VPN? Do you see the same issues when not connected to the VPN?

[chris-araman]

We might be able to wire up some retry logic here, in case of an unreliable network. I suspect the App Store app does something similar. We'd want to be sure that we only retry in case of a small set of specific errors. Many types of errors along this path mean retrying won't help.

[bric3]

Hi, I stumbled on this issue, while using mas directly mas upgrade, I see a popup "The network connection was lost".
However clicking the retry button don't fix the issue. It seems to happen for all apps that are tried to be downloaded, and I have to cancel for each.

The app store does not list these updates though. But iterating each app on the app store, the update button is there. I updated all of these, however mas still lists XCode. On the App Store, it is indicated that XCode 12.5 requires Big Sur and my current XCode version is 12.4, could it be related to this ?

MacOS Catalina (10.15.7)
mas version : 1.8.2
I am signed in my account in the App Store app.