Don't try to determine interactivity if ui() called with interactive=False. WSGI applications are not supposed to refer to sys.stdin. In ed6df6b1c29a, hgweb and hgwebdir were fixed to pass interactive=False to their ui()'s, but sys.stdin.isatty() was still called by the ui objects. This change makes sure only the ui.fixconfig() method will call ui.isatty() (by making the ui._readline() method, which is currently only called from ui.prompt(), private). ui.fixconfig() is changed to let config files override the initial interactivity setting, but not check isatty() if interactive=False was specified in the creation of the ui.

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#!/bin/sh

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hg init test

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cd test

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mkdir da

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echo foo > da/foo

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echo foo > foo

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hg ci -Ambase -d '0 0'

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hg serve -p 20060 -d --pid-file=hg.pid

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echo % manifest

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("$TESTDIR/get-with-headers.py" localhost:20060 '/file/tip/?style=raw')

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("$TESTDIR/get-with-headers.py" localhost:20060 '/file/tip/da?style=raw')

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kill `cat hg.pid`