credential: use git_prompt instead of git_getpass

We use git_getpass to retrieve the username and password
from the terminal. However, git_getpass will not echo the
username as the user types. We can fix this by using the
more generic git_prompt, which underlies git_getpass but
lets us specify an "echo" option.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/credential.c b/credential.c
index fbb72311beea1386685ce234bcbdb31fb31e2206..62d1c56819e5351e5697dab7ff13d33ac806c398 100644 (file)
--- a/credential.c
+++ b/credential.c
@@ -109,7 +109,8 @@ static void credential_describe(struct credential *c, struct strbuf *out)
                strbuf_addf(out, "/%s", c->path);
 }
 
-static char *credential_ask_one(const char *what, struct credential *c)
+static char *credential_ask_one(const char *what, struct credential *c,
+                               int flags)
 {
        struct strbuf desc = STRBUF_INIT;
        struct strbuf prompt = STRBUF_INIT;
@@ -121,11 +122,7 @@ static char *credential_ask_one(const char *what, struct credential *c)
        else
                strbuf_addf(&prompt, "%s: ", what);
 
-       /* FIXME: for usernames, we should do something less magical that
-        * actually echoes the characters. However, we need to read from
-        * /dev/tty and not stdio, which is not portable (but getpass will do
-        * it for us). http.c uses the same workaround. */
-       r = git_getpass(prompt.buf);
+       r = git_prompt(prompt.buf, flags);
 
        strbuf_release(&desc);
        strbuf_release(&prompt);
@@ -135,9 +132,11 @@ static char *credential_ask_one(const char *what, struct credential *c)
 static void credential_getpass(struct credential *c)
 {
        if (!c->username)
-               c->username = credential_ask_one("Username", c);
+               c->username = credential_ask_one("Username", c,
+                                                PROMPT_ASKPASS|PROMPT_ECHO);
        if (!c->password)
-               c->password = credential_ask_one("Password", c);
+               c->password = credential_ask_one("Password", c,
+                                                PROMPT_ASKPASS);
 }
 
 int credential_read(struct credential *c, FILE *fp)