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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import os

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from mercurial import hg, ui, commands

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u = ui.ui()

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repo = hg.repository(u, 'test1', create=1)

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os.chdir('test1')

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# create 'foo' with fixed time stamp

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f = file('foo', 'w')

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f.write('foo\n')

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f.close()

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os.utime('foo', (1000, 1000))

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# add+commit 'foo'

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repo.add(['foo'])

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repo.commit(text='commit1', date="0 0")

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print "workingfilectx.date =", repo.workingctx().filectx('foo').date()