2023-04-11 15:41:59 +08:00
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#ifndef PAGER_H
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#define PAGER_H
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struct child_process;
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const char *git_pager(int stdout_is_tty);
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void setup_pager(void);
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pager: introduce wait_for_pager
Since f67b45f862 (Introduce trivial new pager.c helper infrastructure,
2006-02-28) we have the machinery to send our output to a pager.
That machinery, once set up, does not allow us to regain the original
stdio streams.
In the interactive commands (i.e.: add -p) we want to use the pager for
some output, while maintaining the interaction with the user.
Modify the pager machinery so that we can use `setup_pager()` and, once
we've finished sending the desired output for the pager, wait for the
pager termination using a new function `wait_for_pager()`. Make this
function reset the pager machinery before returning.
One specific point to note is that we avoid forking the pager in
`setup_pager()` if the configured pager is an empty string [*1*] or
simply "cat" [*2*]. In these cases, `setup_pager()` does nothing and
therefore `wait_for_pager()` should not be called.
We could modify `setup_pager()` to return an indication of these
situations, so we could avoid calling `wait_for_pager()`.
However, let's avoid transferring that responsibility to the caller and
instead treat the call to `wait_for_pager()` as a no-op when we know we
haven't forked the pager.
1.- 402461aab1 (pager: do not fork a pager if PAGER is set to empty.,
2006-04-16)
2.- caef71a535 (Do not fork PAGER=cat, 2006-04-16)
Signed-off-by: Rubén Justo <rjusto@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-07-25 21:44:39 +08:00
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void wait_for_pager(void);
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2023-04-11 15:41:59 +08:00
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int pager_in_use(void);
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int term_columns(void);
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void term_clear_line(void);
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int decimal_width(uintmax_t);
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int check_pager_config(const char *cmd);
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void prepare_pager_args(struct child_process *, const char *pager);
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extern int pager_use_color;
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#endif /* PAGER_H */
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