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Merge branch 'hv/remote-end-hung-up'

When we get disconnected while expecting a response from the remote
side because authentication failed, we issued an error message "The
remote side hung up unexpectedly."

Give hint that it may be a permission problem in the message when we
can reasonably suspect it.

* hv/remote-end-hung-up:
  remove the impression of unexpectedness when access is denied
  • Loading branch information...
commit 348c44e78eb079fa97a575f8fb8c1fcac747efe5 2 parents b129051 + 46284dd
@gitster gitster authored
Showing with 51 additions and 16 deletions.
  1. +17 −1 connect.c
  2. +26 −6 pkt-line.c
  3. +1 −0  pkt-line.h
  4. +7 −9 t/t5512-ls-remote.sh
View
18 connect.c
@@ -49,6 +49,16 @@ static void add_extra_have(struct extra_have_objects *extra, unsigned char *sha1
extra->nr++;
}
+static void die_initial_contact(int got_at_least_one_head)
+{
+ if (got_at_least_one_head)
+ die("The remote end hung up upon initial contact");
+ else
+ die("Could not read from remote repository.\n\n"
+ "Please make sure you have the correct access rights\n"
+ "and the repository exists.");
+}
+
/*
* Read all the refs from the other end
*/
@@ -56,6 +66,8 @@ struct ref **get_remote_heads(int in, struct ref **list,
unsigned int flags,
struct extra_have_objects *extra_have)
{
+ int got_at_least_one_head = 0;
+
*list = NULL;
for (;;) {
struct ref *ref;
@@ -64,7 +76,10 @@ struct ref **get_remote_heads(int in, struct ref **list,
char *name;
int len, name_len;
- len = packet_read_line(in, buffer, sizeof(buffer));
+ len = packet_read(in, buffer, sizeof(buffer));
+ if (len < 0)
+ die_initial_contact(got_at_least_one_head);
+
if (!len)
break;
if (buffer[len-1] == '\n')
@@ -95,6 +110,7 @@ struct ref **get_remote_heads(int in, struct ref **list,
hashcpy(ref->old_sha1, old_sha1);
*list = ref;
list = &ref->next;
+ got_at_least_one_head = 1;
}
return list;
}
View
32 pkt-line.c
@@ -135,13 +135,19 @@ void packet_buf_write(struct strbuf *buf, const char *fmt, ...)
strbuf_add(buf, buffer, n);
}
-static void safe_read(int fd, void *buffer, unsigned size)
+static int safe_read(int fd, void *buffer, unsigned size, int return_line_fail)
{
ssize_t ret = read_in_full(fd, buffer, size);
if (ret < 0)
die_errno("read error");
- else if (ret < size)
+ else if (ret < size) {
+ if (return_line_fail)
+ return -1;
+
die("The remote end hung up unexpectedly");
+ }
+
+ return ret;
}
static int packet_length(const char *linelen)
@@ -169,12 +175,14 @@ static int packet_length(const char *linelen)
return len;
}
-int packet_read_line(int fd, char *buffer, unsigned size)
+static int packet_read_internal(int fd, char *buffer, unsigned size, int return_line_fail)
{
- int len;
+ int len, ret;
char linelen[4];
- safe_read(fd, linelen, 4);
+ ret = safe_read(fd, linelen, 4, return_line_fail);
+ if (return_line_fail && ret < 0)
+ return ret;
len = packet_length(linelen);
if (len < 0)
die("protocol error: bad line length character: %.4s", linelen);
@@ -185,12 +193,24 @@ int packet_read_line(int fd, char *buffer, unsigned size)
len -= 4;
if (len >= size)
die("protocol error: bad line length %d", len);
- safe_read(fd, buffer, len);
+ ret = safe_read(fd, buffer, len, return_line_fail);
+ if (return_line_fail && ret < 0)
+ return ret;
buffer[len] = 0;
packet_trace(buffer, len, 0);
return len;
}
+int packet_read(int fd, char *buffer, unsigned size)
+{
+ return packet_read_internal(fd, buffer, size, 1);
+}
+
+int packet_read_line(int fd, char *buffer, unsigned size)
+{
+ return packet_read_internal(fd, buffer, size, 0);
+}
+
int packet_get_line(struct strbuf *out,
char **src_buf, size_t *src_len)
{
View
1  pkt-line.h
@@ -13,6 +13,7 @@ void packet_buf_flush(struct strbuf *buf);
void packet_buf_write(struct strbuf *buf, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
int packet_read_line(int fd, char *buffer, unsigned size);
+int packet_read(int fd, char *buffer, unsigned size);
int packet_get_line(struct strbuf *out, char **src_buf, size_t *src_len);
ssize_t safe_write(int, const void *, ssize_t);
View
16 t/t5512-ls-remote.sh
@@ -87,17 +87,15 @@ test_expect_success 'use branch.<name>.remote if possible' '
test_expect_success 'confuses pattern as remote when no remote specified' '
cat >exp <<-\EOF &&
fatal: '\''refs*master'\'' does not appear to be a git repository
- fatal: The remote end hung up unexpectedly
+ fatal: Could not read from remote repository.
+
+ Please make sure you have the correct access rights
+ and the repository exists.
EOF
#
- # Do not expect "git ls-remote <pattern>" to work; ls-remote, correctly,
- # confuses <pattern> for <remote>. Although ugly, this behaviour is akin
- # to the confusion of refspecs for remotes by git-fetch and git-push,
- # eg:
- #
- # $ git fetch branch
- #
-
+ # Do not expect "git ls-remote <pattern>" to work; ls-remote needs
+ # <remote> if you want to feed <pattern>, just like you cannot say
+ # fetch <branch>.
# We could just as easily have used "master"; the "*" emphasizes its
# role as a pattern.
test_must_fail git ls-remote refs*master >actual 2>&1 &&
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