From: Bart Schaefer <schaefer@brasslantern.com>
To: zsh-workers@zsh.org
Subject: Somebody remind me of the reasoning in readhistfile()?
Date: Sat, 31 Jan 2015 11:06:12 -0800 [thread overview]
Message-ID: <150131110612.ZM18938@torch.brasslantern.com> (raw)
newflags = HIST_OLD | HIST_READ;
if (readflags & HFILE_FAST)
newflags |= HIST_FOREIGN;
if (readflags & HFILE_SKIPOLD
|| (hist_ignore_all_dups && newflags & hist_skip_flags))
newflags |= HIST_MAKEUNIQUE;
hist_skip_flags is always either the single bit HIST_FOREIGN, or zero.
The initial value is zero.
The only way to change hist_skip_flags is with "zle set-local-history",
which it's not possible to execute during reading of init files.
This means (unless I'm missing something?) that HIST_MAKEUNIQUE is never
used here unless set-local-history has been executed by the user. That
in turn means that set-local-history changes the behavior not just of
history ZLE bindings but of the actual incremental read of the history
file if share_history is set.
Why does HIST_MAKEUNIQUE depend on this?
reply other threads:[~2015-01-31 19:06 UTC|newest]
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