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run-command: Allow stderr to be a caller supplied pipe

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Like .out, .err may now be set to a file descriptor > 0, which
is a writable pipe/socket/file that the child's stderr will be
redirected into.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Shawn O. Pearce
2010-02-05 12:57:37 -08:00
committed by Junio C Hamano
parent 2b26e0e189
commit 4f41b61148
3 changed files with 10 additions and 2 deletions
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8
run-command.c
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@ -94,6 +94,9 @@ fail_pipe:
else if (need_err) {
dup2(fderr[1], 2);
close_pair(fderr);
} else if (cmd->err > 1) {
dup2(cmd->err, 2);
close(cmd->err);
}
if (cmd->no_stdout)
@ -156,6 +159,9 @@ fail_pipe:
} else if (need_err) {
s2 = dup(2);
dup2(fderr[1], 2);
} else if (cmd->err > 2) {
s2 = dup(2);
dup2(cmd->err, 2);
}
if (cmd->no_stdout) {
@ -228,6 +234,8 @@ fail_pipe:
if (need_err)
close(fderr[1]);
else if (cmd->err)
close(cmd->err);
return 0;
}