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"git clone --local $path" started its life as an experiment to
optionally use link/copy when cloning a repository on the disk, but
we didn't deprecate it after we made the option a no-op to always
use the optimization.

The command learns "--no-local" option to turn this off, as a more
explicit alternative over use of file:// URL.

* jk/clone-local:
  clone: allow --no-local to turn off local optimizations
  docs/clone: mention that --local may be ignored
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Junio C Hamano committed Jun 21, 2012
2 parents cf5c75d + 189260b commit 486fcbc
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19 changes: 12 additions & 7 deletions Documentation/git-clone.txt
Original file line number Diff line number Diff line change
Expand Up @@ -46,13 +46,18 @@ OPTIONS
mechanism and clones the repository by making a copy of
HEAD and everything under objects and refs directories.
The files under `.git/objects/` directory are hardlinked
to save space when possible. This is now the default when
the source repository is specified with `/path/to/repo`
syntax, so it essentially is a no-op option. To force
copying instead of hardlinking (which may be desirable
if you are trying to make a back-up of your repository),
but still avoid the usual "git aware" transport
mechanism, `--no-hardlinks` can be used.
to save space when possible.
+
If the repository is specified as a local path (e.g., `/path/to/repo`),
this is the default, and --local is essentially a no-op. If the
repository is specified as a URL, then this flag is ignored (and we
never use the local optimizations). Specifying `--no-local` will
override the default when `/path/to/repo` is given, using the regular
git transport instead.
+
To force copying instead of hardlinking (which may be desirable if you
are trying to make a back-up of your repository), but still avoid the
usual "git aware" transport mechanism, `--no-hardlinks` can be used.

--no-hardlinks::
Optimize the cloning process from a repository on a
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10 changes: 5 additions & 5 deletions builtin/clone.c
Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ static const char * const builtin_clone_usage[] = {
};

static int option_no_checkout, option_bare, option_mirror, option_single_branch = -1;
static int option_local, option_no_hardlinks, option_shared, option_recursive;
static int option_local = -1, option_no_hardlinks, option_shared, option_recursive;
static char *option_template, *option_depth;
static char *option_origin = NULL;
static char *option_branch = NULL;
Expand Down Expand Up @@ -70,8 +70,8 @@ static struct option builtin_clone_options[] = {
PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
OPT_BOOLEAN(0, "mirror", &option_mirror,
"create a mirror repository (implies bare)"),
OPT_BOOLEAN('l', "local", &option_local,
"to clone from a local repository"),
OPT_BOOL('l', "local", &option_local,
"to clone from a local repository"),
OPT_BOOLEAN(0, "no-hardlinks", &option_no_hardlinks,
"don't use local hardlinks, always copy"),
OPT_BOOLEAN('s', "shared", &option_shared,
Expand Down Expand Up @@ -342,7 +342,7 @@ static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest,
if (!option_no_hardlinks) {
if (!link(src->buf, dest->buf))
continue;
if (option_local)
if (option_local > 0)
die_errno(_("failed to create link '%s'"), dest->buf);
option_no_hardlinks = 1;
}
Expand Down Expand Up @@ -668,7 +668,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
die(_("repository '%s' does not exist"), repo_name);
else
repo = repo_name;
is_local = path && !is_bundle;
is_local = option_local != 0 && path && !is_bundle;
if (is_local && option_depth)
warning(_("--depth is ignored in local clones; use file:// instead."));

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10 changes: 10 additions & 0 deletions t/t5701-clone-local.sh
Original file line number Diff line number Diff line change
Expand Up @@ -124,4 +124,14 @@ test_expect_success 'cloning non-git directory fails' '
test_must_fail git clone not-a-git-repo not-a-git-repo-clone
'

test_expect_success 'cloning file:// does not hardlink' '
git clone --bare file://"$(pwd)"/a non-local &&
! repo_is_hardlinked non-local
'

test_expect_success 'cloning a local path with --no-local does not hardlink' '
git clone --bare --no-local a force-nonlocal &&
! repo_is_hardlinked force-nonlocal
'

test_done

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