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prompt: clean up strbuf usage

The do_askpass function inherited a few bad habits from the
original git_getpass. One, there's no need to strbuf_reset a
buffer which was just initialized. And two, it's a good
habit to use strbuf_detach to claim ownership of a buffer's
string (even though in this case the owning buffer goes out
of scope, so it's effectively the same thing).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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1 parent 828ea97 commit 31b49d9b653803e7c7fd18b21c8bdd86e3421668 @peff peff committed with gitster Feb 3, 2012
Showing with 1 addition and 2 deletions.
  1. +1 −2 prompt.c
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@@ -21,7 +21,6 @@ static char *do_askpass(const char *cmd, const char *prompt)
if (start_command(&pass))
exit(1);
- strbuf_reset(&buffer);
if (strbuf_read(&buffer, pass.out, 20) < 0)
die("failed to get '%s' from %s\n", prompt, cmd);
@@ -32,7 +31,7 @@ static char *do_askpass(const char *cmd, const char *prompt)
strbuf_setlen(&buffer, strcspn(buffer.buf, "\r\n"));
- return buffer.buf;
+ return strbuf_detach(&buffer, NULL);
}
char *git_prompt(const char *prompt, int flags)

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