Don't output download progress when in a non-interactive terminal #135
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This change disables download progress output if
xcodes
isn't running in an interactive terminal. In an interactive terminalxcodes
will update the same line with progress from 0-100%. In a non-interactive terminalxcodes
used to write 100 separate lines with the ANSI escape codes, and now it'll only print(1/6) Downloading Xcode X.Y.Z
once.This is not the only change that should be made for better support of non-interactive terminals (for example #128, or any other use of readline), but it's a start.