when the `cat-blob` command is encountered in the stream.
The default behaviour is to write to `stdout`.
+--done::
+ Require a `done` command at the end of the stream.
+ This option might be useful for detecting errors that
+ cause the frontend to terminate before it has started to
+ write a stream.
+
--export-pack-edges=<file>::
After creating a packfile, print a line of data to
<file> listing the filename of the packfile and the last
standard output. This command is optional and is not needed
to perform an import.
+`done`::
+ Marks the end of the stream. This command is optional
+ unless the `done` feature was requested using the
+ `--done` command line option or `feature done` command.
+
`cat-blob`::
Causes fast-import to print a blob in 'cat-file --batch'
format to the file descriptor set with `--cat-blob-fd` or
Versions of fast-import not supporting notes will exit
with a message indicating so.
+done::
+ Error out if the stream ends without a 'done' command.
+ Without this feature, errors causing the frontend to end
+ abruptly at a convenient point in the stream can go
+ undetected.
`option`
~~~~~~~~
* cat-blob-fd
* force
+`done`
+~~~~~~
+If the `done` feature is not in use, treated as if EOF was read.
+This can be used to tell fast-import to finish early.
+
+If the `--done` command line option or `feature done` command is
+in use, the `done` command is mandatory and marks the end of the
+stream.
+
Crash Reports
-------------
If fast-import is supplied invalid input it will terminate with a
static uintmax_t next_mark;
static struct strbuf new_data = STRBUF_INIT;
static int seen_data_command;
+static int require_explicit_termination;
/* Signal handling */
static volatile sig_atomic_t checkpoint_requested;
relative_marks_paths = 1;
} else if (!strcmp(feature, "no-relative-marks")) {
relative_marks_paths = 0;
+ } else if (!strcmp(feature, "done")) {
+ require_explicit_termination = 1;
} else if (!strcmp(feature, "force")) {
force_update = 1;
} else if (!strcmp(feature, "notes") || !strcmp(feature, "ls")) {
parse_reset_branch();
else if (!strcmp("checkpoint", command_buf.buf))
parse_checkpoint();
+ else if (!strcmp("done", command_buf.buf))
+ break;
else if (!prefixcmp(command_buf.buf, "progress "))
parse_progress();
else if (!prefixcmp(command_buf.buf, "feature "))
if (!seen_data_command)
parse_argv();
+ if (require_explicit_termination && feof(stdin))
+ die("stream ends early");
+
end_packfile();
dump_branches();
test_cmp empty output
'
+test_expect_success 'R: feature done means terminating "done" is mandatory' '
+ echo feature done | test_must_fail git fast-import &&
+ test_must_fail git fast-import --done </dev/null
+'
+
+test_expect_success 'R: terminating "done" with trailing gibberish is ok' '
+ git fast-import <<-\EOF &&
+ feature done
+ done
+ trailing gibberish
+ EOF
+ git fast-import <<-\EOF
+ done
+ more trailing gibberish
+ EOF
+'
+
+test_expect_success 'R: terminating "done" within commit' '
+ cat >expect <<-\EOF &&
+ OBJID
+ :000000 100644 OBJID OBJID A hello.c
+ :000000 100644 OBJID OBJID A hello2.c
+ EOF
+ git fast-import <<-EOF &&
+ commit refs/heads/done-ends
+ committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+ data <<EOT
+ Commit terminated by "done" command
+ EOT
+ M 100644 inline hello.c
+ data <<EOT
+ Hello, world.
+ EOT
+ C hello.c hello2.c
+ done
+ EOF
+ git rev-list done-ends |
+ git diff-tree -r --stdin --root --always |
+ sed -e "s/$_x40/OBJID/g" >actual &&
+ test_cmp expect actual
+'
+
cat >input <<EOF
option git non-existing-option
EOF