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.
reverting a
changeset 3:107ce1ee2b43 backs out changeset 1:25a1420a55f8
merging with changeset 2:e6c3abc120e7
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
transaction abort!
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abort: invalid date: 'should fail'
transaction abort!
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abort: date exceeds 32 bits: 100000000000000000
transaction abort!
rollback completed
abort: impossible time zone offset: 1400000
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