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documentation updates for history builtin to note it does not truncate the history file; documentation updates for HISTFILESIZE noting that it can work on lines or history entries depending on $HISTTIMEFORMAT; documentation update for history saving behavior at shell exit; history -w and history -a should update the number of history entries in the current session if they are using $HISTFILE; history -r now updates the number of history entries in the current session; improvement to history_truncate_file so it leaves fewer partial history entries when operating on lines

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This commit is contained in:
Chet Ramey
2026-08-28 15:35:54 -04:00
parent 71327ab3b5
commit 81ddb6474b
16 changed files with 2086 additions and 1840 deletions
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bashhist.c
+8 -5
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@@ -1,6 +1,6 @@
/* bashhist.c -- bash interface to the GNU history library. */
/* Copyright (C) 1993-2024 Free Software Foundation, Inc.
/* Copyright (C) 1993-2026 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@@ -447,7 +447,7 @@ save_history (void)
#endif
int
maybe_append_history (char *filename)
maybe_append_history (char *filename, int is_histfile)
{
int fd, result, histlen;
struct stat buf;
@@ -471,10 +471,13 @@ maybe_append_history (char *filename)
if (histlen > 0 && history_lines_this_session > histlen)
history_lines_this_session = histlen; /* reset below anyway */
result = append_history (history_lines_this_session, filename);
/* Pretend we already read these lines from the file because we just
/* Pretend we already read these lines from $HISTFILE because we just
added them */
history_lines_in_file += history_lines_this_session;
history_lines_this_session = 0;
if (is_histfile)
{
history_lines_in_file += history_lines_this_session;
history_lines_this_session = 0;
}
}
else
history_lines_this_session = 0; /* reset if > where_history() */