Re: [PATCH v3] sha1_file: pass empty buffer to index empty file

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Junio C Hamano <gitster@xxxxxxxxx> writes:

> Subject: [PATCH 2/2] filter_buffer_or_fd(): ignore EPIPE
>
> We are explicitly ignoring SIGPIPE, as we fully expect that the
> filter program may not read our output fully.  Ignore EPIPE that
> may come from writing to it as well.

Yuck; please discard the previous one.  write_in_full() side is also
writing into that process, so we should do the same.

-- >8 --
Subject: [PATCH v2 2/2] filter_buffer_or_fd(): ignore EPIPE

We are explicitly ignoring SIGPIPE, as we fully expect that the
filter program may not read our output fully.  Ignore EPIPE that
may come from writing to it as well.

Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
 convert.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/convert.c b/convert.c
index 9a5612e..f3bd3e9 100644
--- a/convert.c
+++ b/convert.c
@@ -356,9 +356,14 @@ static int filter_buffer_or_fd(int in, int out, void *data)
 	sigchain_push(SIGPIPE, SIG_IGN);
 
 	if (params->src) {
-		write_err = (write_in_full(child_process.in, params->src, params->size) < 0);
+		write_err = (write_in_full(child_process.in,
+					   params->src, params->size) < 0);
+		if (errno == EPIPE)
+			write_err = 0;
 	} else {
 		write_err = copy_fd(params->fd, child_process.in);
+		if (write_err == COPY_WRITE_ERROR && errno == EPIPE)
+			write_err = 0;
 	}
 
 	if (close(child_process.in))
-- 
2.4.1-413-ga38dc94

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