From: Jens Lehmann
Date: Wed, 13 Jun 2012 18:50:10 +0200
Signed-off-by: Jens Lehmann
Signed-off-by: Jonathan Nieder
---
This is the patch that actually introduces the --recurse-submodules
option, which makes the rest work.
The tests indicate some future directions for improving this, but
it works reasonably well already. I think I'd be most comfortable
applying these if they were rearranged a little to the following
order:
1. First, introducing the --recurse-submodules option, perhaps
with no actual effect, with tests that it is parsed correctly,
the default works, etc.
2. Then, adding the desired behaviors one by one with corresponding
tests (handling submodule modifications, removals, additions).
3. Finally, any needed tweaks on top.
That way, it is easy to play around with early patches without
worrying about the later ones at first, and the patches are easy
to review to confirm that they at least don't break anything in
the --no-recurse-submodules case.
That said, Debian experimental has these applied as is already,
and there haven't been any complaints yet.
Thoughts?
Jonathan
Documentation/git-checkout.txt | 8 ++
builtin/checkout.c | 14 +++
submodule.c| 14 +++
submodule.h| 3 +
t/t2013-checkout-submodule.sh | 215 -
5 files changed, 251 insertions(+), 3 deletions(-)
diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt
index 91294f8..aabcc65 100644
--- a/Documentation/git-checkout.txt
+++ b/Documentation/git-checkout.txt
@@ -225,6 +225,14 @@ This means that you can use `git checkout -p` to
selectively discard
edits from your current working tree. See the ``Interactive Mode''
section of linkgit:git-add[1] to learn how to operate the `--patch` mode.
+--[no-]recurse-submodules::
+ Using --recurse-submodules will update the content of all initialized
+ submodules according to the commit recorded in the superproject.If
+ local modifications in a submodule would be overwritten the checkout
+ will fail until `-f` is used. If nothing (or --no-recurse-submodules)
+ is used, the work trees of submodules will not be updated, only the
+ hash recorded in the superproject will be changed.
+
::
Branch to checkout; if it refers to a branch (i.e., a name that,
when prepended with "refs/heads/", is a valid ref), then that
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 5df3837..ac2f8d8 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -21,6 +21,9 @@
#include "submodule.h"
#include "argv-array.h"
+static const char *recurse_submodules_default = "off";
+static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
+
static const char * const checkout_usage[] = {
N_("git checkout [options] "),
N_("git checkout [options] [] -- ..."),
@@ -,6 +1114,12 @@ int cmd_checkout(int argc, const char **argv, const char
*prefix)
N_("do not limit pathspecs to sparse entries only")),
OPT_HIDDEN_BOOL(0, "guess", &dwim_new_local_branch,
N_("second guess 'git checkout
no-such-branch'")),
+ { OPTION_CALLBACK, 0, "recurse-submodules", &recurse_submodules,
+ "checkout", "control recursive updating of
submodules",
+ PARSE_OPT_OPTARG, option_parse_update_submodules },
+ { OPTION_STRING, 0, "recurse-submodules-default",
+ &recurse_submodules_default, NULL,
+ "default mode for recursion", PARSE_OPT_HIDDEN },
OPT_END(),
};
@@ -1132,6 +1141,11 @@ int cmd_checkout(int argc, const char **argv, const char
*prefix)
git_xmerge_config("merge.conflictstyle", conflict_style, NULL);
}
+ set_config_update_recurse_submodules(
+
parse_fetch_recurse_submodules_arg("--recurse-submodules-default",
+ recurse_submodules_default),
+ recurse_submodules);
+
if ((!!opts.new_branch + !!opts.new_branch_force +
!!opts.new_orphan_branch) > 1)
die(_("-b, -B and --orphan are mutually exclusive"));
diff --git a/submodule.c b/submodule.c
index 3365987..bdce1b2 100644
--- a/submodule.c
+++ b/submodule.c
@@ -398,6 +398,20 @@ int parse_update_recurse_submodules_arg(const char *opt,
const char *arg)
}
}
+int option_parse_update_submodules(const struct option *opt,
+ const char *arg, int unset)
+{
+ if (unset) {
+ *(int *)opt->value = RECURSE_SUBMODULES_OFF;
+ } else {
+ if (arg)
+ *(int *)opt->value =
parse_update_recurse_submodules_arg(opt->long_name, arg);
+ else
+ *(int *)opt->value = RECURSE_SUBMODULES_ON;
+ }
+
