At the current state, the following use-case is not supported very
well in git:
- a maintainer adds a submodule, checking out a specific branch of
the repository. He doesn't track the upstream submodule revision sha1;
- a developer checkout the repository branch decided by the maintainer.
Subsequent "merge" or "rebase" update operations don't detach the HEAD.
To ease the above use-case this patch:
- introduces a "submodule.<module>.attached" property that, when set
to "true", ensures that the "update" operation will result in
the HEAD attached to a branch;
- introduces "--attach|--dettach" switches to the submodule "update"
command: they attach/detach the HEAD, overriding
"submodule.<module>.attached" property value;
- introduces "--attached-update" switch to the "add" operation. It:
* sets "submodule.<module>.attached" to true;
* sets "submodule.<module>.ignore" to all.
Using the '--attach' switch or operating in a repository with
'submodule.<name>.attached' set to 'true' during "update" will:
- checkout a branch with an attached HEAD if the repository was just
cloned;
- perform a fast-forward only merge of changes if it's a 'checkout'
update operation;
- reattach the HEAD prior performing a 'merge', 'rebase' or '!command'
update operation if the HEAD was found detached. Orphaned commits
will also be merged back in the branch.
'--attach' or 'submodule.<name>.attached' set to true also implies '--remote'.
Using the '--detach' switch or operating in a repository with
'submodule.<name>.attached' set to 'false' during "update" will:
- checkout a detached HEAD if the repository was just cloned;
- detach the HEAD prior performing a 'merge', 'rebase' or '!command'
update operation if the HEAD was found attached.
'submodule.<name>.attached' works similarly to 'submodule.<name>.update'
property: git copies the values found in ".gitmodules" in ".git/config" when
performing an "init" command. "update" looks for values in ".git/config"
only.
'--attach' and '--detach' switches override an opposite behaviour
of 'submodule.<name>.attached' properties.
The patch is strongly additive and doesn't break any submodule specific
test. It also adds some tests specific to the added feature.
---
Documentation/git-submodule.txt | 48 +++++--
Documentation/gitmodules.txt | 10 +-
git-submodule.sh | 154 +++++++++++++++++++--
t/t7410-submodule-attached-head.sh | 268 +++++++++++++++++++++++++++++++++++++
4 files changed, 457 insertions(+), 23 deletions(-)
create mode 100755 t/t7410-submodule-attached-head.sh
diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt
index bfef8a0..b97eefb 100644
--- a/Documentation/git-submodule.txt
+++ b/Documentation/git-submodule.txt
@@ -10,13 +10,14 @@ SYNOPSIS
--------
[verse]
'git submodule' [--quiet] add [-b <branch>] [-f|--force] [--name <name>]
- [--reference <repository>] [--depth <depth>] [--] <repository> [<path>]
+ [--reference <repository>] [--attached-update] [--depth <depth>]
+ [--] <repository> [<path>]
'git submodule' [--quiet] status [--cached] [--recursive] [--] [<path>...]
'git submodule' [--quiet] init [--] [<path>...]
'git submodule' [--quiet] deinit [-f|--force] [--] <path>...
'git submodule' [--quiet] update [--init] [--remote] [-N|--no-fetch]
- [-f|--force] [--rebase] [--reference <repository>] [--depth <depth>]
- [--merge] [--recursive] [--] [<path>...]
+ [-f|--force] [--rebase] [--reference <repository>] [--attach | --detach]
+ [--depth <depth>] [--merge] [--recursive] [--] [<path>...]
'git submodule' [--quiet] summary [--cached|--files] [(-n|--summary-limit) <n>]
[commit] [--] [<path>...]
'git submodule' [--quiet] foreach [--recursive] <command>
@@ -107,6 +108,9 @@ is the superproject and submodule repositories will be kept
together in the same relative location, and only the
superproject's URL needs to be provided: git-submodule will correctly
locate the submodule using the relative URL in .gitmodules.
++
+If `--attached-update` is specified, the property `submodule.<name>.attached`
+will be set to `true` and `submodule.<name>.ignore` will be set to `all`.
status::
Show the status of the submodules. This will print the SHA-1 of the
@@ -156,12 +160,15 @@ it contains local modifications.
update::
Update the registered submodules, i.e. clone missing submodules and
checkout the commit specified in the index of the containing repository.
- This will make the submodules HEAD be detached unless `--rebase` or
- `--merge` is specified or the key `submodule.$name.update` is set to
- `rebase`, `merge` or `none`. `none` can be overridden by specifying
- `--checkout`. Setting the key `submodule.$name.update` to `!command`
- will cause `command` to be run. `command` can be any arbitrary shell
- command that takes a single argument, namely the sha1 to update to.
+ This will make the submodules HEAD be detached unless `--attach` is
+ specified or `submodule.$name.attached` is set to `true`. The last setting
+ can always be overridden specifying `--detach`. Update mode can be
+ selected specifying `--checkout`, `--rebase` or `--merge` switches
+ or setting the key `submodule.$name.update` to `checkout`, `rebase`,
+ `merge` or `none`. `none` will cause the submodule to be skipped during
+ the update. Setting the key `submodule.$name.update` to `!command` will
+ cause `command` to be run. `command` can be any arbitrary shell command
+ that takes a single argument, namely the sha1 to update to.
+
If the submodule is not yet initialized, and you just want to use the
setting as stored in .gitmodules, you can automatically initialize the
@@ -270,6 +277,23 @@ OPTIONS
be overridden by setting the `submodule.<name>.branch` option in
either `.gitmodules` or `.git/config` (with `.git/config` taking
precedence).
+
+--attached-update::
+ This option is only valid for the add command. Causes the add command
+ also to set the property `submodule.<name>.attached` to `true` and
+ the property `submodule.<name>.ignore` to `all`.
+
+--attach::
+ This option is only valid for the update commands. Causes the result
+ of an update operation to be an attached HEAD. In the update operation,
+ the branch named by 'submodule.<name>.branch' is checked out as the new
+ HEAD of the submodule repository. If 'submodule.<name>.branch' is not
+ set, the 'master' branch is checked out as the new HEAD of the
+ submodule. Note: `--attach` also implies `--remote`.
+
+--detach::
+ This option is only valid for the update command. Forces the result
+ of the update operation to be a detached HEAD in the submodule.
+
This works for any of the supported update procedures (`--checkout`,
`--rebase`, etc.). The only change is the source of the target SHA-1.
@@ -290,8 +314,7 @@ SHA-1. If you don't want to fetch, you should use `submodule update
--merge::
This option is only valid for the update command.
Merge the commit recorded in the superproject into the current branch
- of the submodule. If this option is given, the submodule's HEAD will
- not be detached. If a merge failure prevents this process, you will
+ of the submodule. If a merge failure prevents this process, you will
have to resolve the resulting conflicts within the submodule with the
usual conflict resolution tools.
If the key `submodule.$name.update` is set to `merge`, this option is
@@ -300,8 +323,7 @@ SHA-1. If you don't want to fetch, you should use `submodule update
--rebase::
This option is only valid for the update command.
Rebase the current branch onto the commit recorded in the
- superproject. If this option is given, the submodule's HEAD will not
- be detached. If a merge failure prevents this process, you will have
+ superproject. If a merge failure prevents this process, you will have
to resolve these failures with linkgit:git-rebase[1].
If the key `submodule.$name.update` is set to `rebase`, this option is
implicit.
diff --git a/Documentation/gitmodules.txt b/Documentation/gitmodules.txt
index f7be93f..9c436db 100644
--- a/Documentation/gitmodules.txt
+++ b/Documentation/gitmodules.txt
@@ -38,7 +38,8 @@ submodule.<name>.url::
submodule.<name>.update::
Defines what to do when the submodule is updated by the superproject.
If 'checkout' (the default), the new commit specified in the
- superproject will be checked out in the submodule on a detached HEAD.
+ superproject (or branch, with '--attach') will be checked out in
+ the submodule.
If 'rebase', the current branch of the submodule will be rebased onto
the commit specified in the superproject. If 'merge', the commit
specified in the superproject will be merged into the current branch
@@ -54,6 +55,13 @@ submodule.<name>.branch::
If the option is not specified, it defaults to 'master'. See the
`--remote` documentation in linkgit:git-submodule[1] for details.
+submodule.<name>.attached::
+ Determine if the update operation will produce a detached HEAD or not.
+ Valid values are `true` or `false`. If the property is set to `true`
+ and `submodule.<name>.branch` is not set, the branch `master` will
+ be checked out. If `submodule.<name>.branch` is set the branch
+ specified will be checked out instead.
+
submodule.<name>.fetchRecurseSubmodules::
This option can be used to control recursive fetching of this
submodule. If this option is also present in the submodules entry in
diff --git a/git-submodule.sh b/git-submodule.sh
index 1d041a7..bc6df2b 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -5,11 +5,11 @@
# Copyright (c) 2007 Lars Hjemli
dashless=$(basename "$0" | sed -e 's/-/ /')
-USAGE="[--quiet] add [-b <branch>] [-f|--force] [--name <name>] [--reference <repository>] [--] <repository> [<path>]
+USAGE="[--quiet] add [-b <branch>] [-f|--force] [--name <name>] [--reference <repository>] [--attached-update] [--] <repository> [<path>]
or: $dashless [--quiet] status [--cached] [--recursive] [--] [<path>...]
or: $dashless [--quiet] init [--] [<path>...]
or: $dashless [--quiet] deinit [-f|--force] [--] <path>...
- or: $dashless [--quiet] update [--init] [--remote] [-N|--no-fetch] [-f|--force] [--rebase] [--reference <repository>] [--merge] [--recursive] [--] [<path>...]
+ or: $dashless [--quiet] update [--init] [--remote] [-N|--no-fetch] [-f|--force] [--rebase] [--reference <repository>] [--attach | --detach] [--merge] [--recursive] [--] [<path>...]
or: $dashless [--quiet] summary [--cached|--files] [--summary-limit <n>] [commit] [--] [<path>...]
or: $dashless [--quiet] foreach [--recursive] <command>
or: $dashless [--quiet] sync [--recursive] [--] [<path>...]"
@@ -36,6 +36,9 @@ update=
prefix=
custom_name=
depth=
+attach=
+detach=
+attached_update=
# The function takes at most 2 arguments. The first argument is the
# URL that navigates to the submodule origin repo. When relative, this URL
@@ -352,6 +355,9 @@ cmd_add()
custom_name=$2
shift
;;
+ --attached-update)
+ attached_update=yes
+ ;;
--depth)
case "$2" in '') usage ;; esac
depth="--depth=$2"
@@ -491,6 +497,12 @@ Use -f if you really want to add it." >&2
then
git config -f .gitmodules submodule."$sm_name".branch "$branch"
fi &&
+ if test -n "$attached_update"
+ then
+ # We'll stay stick to the HEAD, no need to track revision sha1
+ git config -f .gitmodules submodule."$sm_name".attached "true"
+ git config -f .gitmodules submodule."$sm_name".ignore "all"
+ fi &&
git add --force .gitmodules ||
die "$(eval_gettext "Failed to register submodule '\$sm_path'")"
}
@@ -632,6 +644,22 @@ cmd_init()
git config submodule."$name".update "$upd" ||
die "$(eval_gettext "Failed to register update mode for submodule path '\$displaypath'")"
fi
+
+ # Copy "attached" setting when it is not set yet
+ if attached="$(git config -f .gitmodules submodule."$name".attached)" &&
+ test -n "$attached" &&
+ test -z "$(git config submodule."$name".attached)"
+ then
+ case "$attached" in
+ true | false)
+ ;; # Valid attach flag values
+ *)
+ echo >&2 "warning: invalid attach flag value for submodule '$name'"
+ ;;
+ esac
+ git config submodule."$name".attached "$attached" ||
+ die "$(eval_gettext "Failed to register attach option for submodule path '\$displaypath'")"
+ fi
done
}
@@ -750,6 +778,14 @@ cmd_update()
--reference=*)
reference="$1"
;;
+ --attach)
+ if test -n "$detach" ; then usage ; fi
+ attach=1
+ ;;
+ --detach)
+ if test -n "$attach" ; then usage ; fi
+ detach=1
+ ;;
-m|--merge)
update="merge"
;;
@@ -800,6 +836,28 @@ cmd_update()
name=$(module_name "$sm_path") || exit
url=$(git config submodule."$name".url)
branch=$(get_submodule_config "$name" branch master)
+ attach_module=
+ detach_module=
+ if test -n "$attach" -o -n "$detach"
+ then
+ attach_module=$attach
+ detach_module=$detach
+ else
+ attached=$(git config submodule."$name".attached)
+ case "$attached" in
+ '')
+ ;; # Unset attach flag
+ true)
+ attach_module=1
+ ;;
+ false)
+ detach_module=1
+ ;;
+ *)
+ echo >&2 "warning: invalid attach flag value for submodule '$name'"
+ ;;
+ esac
+ fi
if ! test -z "$update"
then
update_module=$update
@@ -848,7 +906,16 @@ Maybe you want to use 'update --init'?")"
die "$(eval_gettext "Unable to find current revision in submodule path '\$displaypath'")"
fi
- if test -n "$remote"
+ head_rev_ref=$(clear_local_git_env; cd "$sm_path" && git rev-parse --abbrev-ref HEAD) ||
+ die "$(eval_gettext "Unable to determine revision ref in submodule path '\$sm_path'")"
+ head_detached=
+ if test "$head_rev_ref" = "HEAD"
+ then
+ # Determine if the HEAD is detached
+ head_detached="true"
+ fi
+
+ if test -n "$remote" -o -n "$attach_module"
then
if test -z "$nofetch"
then
@@ -862,7 +929,8 @@ Maybe you want to use 'update --init'?")"
die "$(eval_gettext "Unable to find current ${remote_name}/${branch} revision in submodule path '\$sm_path'")"
fi
- if test "$subsha1" != "$sha1" -o -n "$force"
+ if test "$subsha1" != "$sha1" || test -n "$attach_module" -a -n "$head_detached" ||
+ test -n "$detach_module" -a -z "$head_detached" || test -n "$force"
then
subforce=$force
# If we don't already have a -f flag and the submodule has never been checked out
@@ -882,40 +950,108 @@ Maybe you want to use 'update --init'?")"
fi
# Is this something we just cloned?
+ just_cloned=
case ";$cloned_modules;" in
*";$name;"*)
# then there is no local change to integrate
- update_module= ;;
+ update_module="checkout"
+ just_cloned=yes
+ ;;
esac
+ if test -z "$update_module"
+ then
+ # Fallback to checkout
+ update_module="checkout"
+ fi
+
+ command_attach=:
+ suffix_attach=
+ if test "$update_module" != "checkout"
+ then
+ if test -n "$attach_module" -a -n "$head_detached"
+ then
+ # We need to reattach to the branch
+ command_attach="git checkout $subforce -q"
+ suffix_attach=$branch
+ elif test -n "$detach_module" -a -z "$head_detached"
+ then
+ # We need to detach from the branch
+ command_attach="git checkout $subforce -q"
+ suffix_attach=$sha1
+ fi
+ fi
+
+ command_pre=:
+ suffix_pre=
+ command_post=:
+ suffix_pre=
+ suffix=
must_die_on_failure=
+ custom_update=
case "$update_module" in
rebase)
command="git rebase"
+ suffix=$sha1
die_msg="$(eval_gettext "Unable to rebase '\$sha1' in submodule path '\$displaypath'")"
say_msg="$(eval_gettext "Submodule path '\$displaypath': rebased into '\$sha1'")"
must_die_on_failure=yes
+ if test -n "$attach_module" -a -n "$head_detached" && test "$subsha1" != "$sha1"
+ then
+ # After the rebase, we merge orphaned commits in the branch
+ command_post="git merge"
+ suffix_post=$subsha1
+ fi
;;
merge)
+ if test -n "$attach_module" -a -n "$head_detached" && test "$subsha1" != "$sha1"
+ then
+ # Prior the rebase, we merge orphaned commits in in the branch
+ command_pre="git merge"
+ suffix_pre=$subsha1
+ fi
command="git merge"
+ suffix=$sha1
die_msg="$(eval_gettext "Unable to merge '\$sha1' in submodule path '\$displaypath'")"
say_msg="$(eval_gettext "Submodule path '\$displaypath': merged in '\$sha1'")"
must_die_on_failure=yes
;;
+ checkout)
+ if test -n "$attach_module"
+ then
+ command="git checkout $subforce -q"
+ suffix=$branch
+ die_msg="$(eval_gettext "Unable to checkout banch '\$branch' in submodule path '\$displaypath'")"
+ say_msg="$(eval_gettext "Submodule path '\$displaypath': checked out branch '\$branch'")"
+ if test -z "$just_cloned" -a && test "$subsha1" != "$sha1"
+ then
+ # Perform a fast-forward only merge of the origin
+ command_post="git merge $subforce --ff-only"
+ suffix_post="origin/$branch"
+ fi
+ else
+ command="git checkout $subforce -q"
+ suffix=$sha1
+ die_msg="$(eval_gettext "Unable to checkout '\$sha1' in submodule path '\$displaypath'")"
+ say_msg="$(eval_gettext "Submodule path '\$displaypath': checked out '\$sha1'")"
+ fi
+ ;;
!*)
command="${update_module#!}"
+ suffix=$sha1
die_msg="$(eval_gettext "Execution of '\$command \$sha1' failed in submodule path '\$prefix\$sm_path'")"
say_msg="$(eval_gettext "Submodule path '\$prefix\$sm_path': '\$command \$sha1'")"
must_die_on_failure=yes
+ custom_update=yes
;;
*)
- command="git checkout $subforce -q"
- die_msg="$(eval_gettext "Unable to checkout '\$sha1' in submodule path '\$displaypath'")"
- say_msg="$(eval_gettext "Submodule path '\$displaypath': checked out '\$sha1'")"
+ # Valid user configurable update modes are already filtered above
+ die "$(eval_gettext "Unexpected update mode in the current flow")"
;;
esac
- if (clear_local_git_env; cd "$sm_path" && $command "$sha1")
+ if (clear_local_git_env; cd "$sm_path" && $command_attach "$suffix_attach" &&
+ $command_pre "$suffix_pre" && $command "$suffix" && $command_post "$suffix_pro")
then
say "$say_msg"
elif test -n "$must_die_on_failure"
diff --git a/t/t7410-submodule-attached-head.sh b/t/t7410-submodule-attached-head.sh
new file mode 100755
index 0000000..04b3018
--- /dev/null
+++ b/t/t7410-submodule-attached-head.sh
@@ -0,0 +1,268 @@
+#!/bin/sh
+#
+# Copyright (c) 2014 Francesco Pretto
+#
+
+test_description='Support for submodules with attached head
+
+This test verifies the sanity of the add and update git submodule commands with
+or without the --attached-update, --attach, --detach switches or the
+submoudule.<module>.attach property set
+'
+
+TEST_NO_CREATE_REPO=true
+. ./test-lib.sh
+
+submodurl1=$(pwd -P)/repo1
+submodurl2=$(pwd -P)/repo2
+repourl=$(pwd -P)/repo
+
+test_expect_success 'setup - create repository "repo1" to be used as submodule' '
+ mkdir repo1 &&
+ (
+ cd repo1 &&
+ git init &&
+ git config receive.denyCurrentBranch ignore &&
+ echo a >a &&
+ git add a &&
+ git commit -m "repo1 commit 1"
+ )
+'
+
+test_expect_success 'setup - reate repository "repo2" to be used as submodule' '
+ mkdir repo2 &&
+ (
+ cd repo2 &&
+ git init &&
+ git config receive.denyCurrentBranch ignore &&
+ echo a >a &&
+ git add a &&
+ git commit -m "repo2 commit 1"
+ )
+'
+
+test_expect_success 'setup - create repository "repo" to be added with sumodules' '
+ mkdir repo &&
+ (
+ cd repo &&
+ git init &&
+ git config receive.denyCurrentBranch ignore &&
+ echo a >a &&
+ git add a &&
+ git commit -m "repo commit 1"
+ )
+'
+
+test_expect_success 'setup - clone repository "repo" in "repoclone"' '
+ git clone "$repourl" repoclone
+'
+
+test_expect_success 'setup - add "mod1" as regular submodule of "repo"' '
+ (
+ cd repo &&
+ git submodule add "$submodurl1" submod1
+ )
+'
+
+test_expect_success 'setup - add "mod2" as update attached HEAD submodule of "repo"' '
+ (
+ cd repo &&
+ git submodule add --attached-update "$submodurl2" submod2
+ )
+'
+
+test_expect_success 'setup - commit submodules in repo' '
+ (
+ cd repo &&
+ git add . &&
+ git commit -m "Added submodules"
+ )
+'
+
+test_expect_success 'init submodules in cloned repo' '
+ (
+ cd repoclone &&
+ git pull &&
+ git submodule init
+ )
+'
+
+test_expect_success 'update submodules in cloned repo' '
+ (
+ cd repoclone &&
+ git submodule update
+ )
+'
+
+test_expect_success 'assert submod1 HEAD is detached in cloned repo' '
+ (
+ cd repoclone/submod1 &&
+ test "$(git rev-parse --abbrev-ref HEAD)" = "HEAD"
+ )
+'
+
+test_expect_success 'assert submod2 HEAD is attached in cloned repo' '
+ (
+ cd repoclone/submod2 &&
+ test "$(git rev-parse --abbrev-ref HEAD)" != "HEAD"
+ )
+'
+
+test_expect_success 'update submodules with --attach in cloned repo' '
+ (
+ cd repoclone &&
+ git submodule update --attach
+ )
+'
+
+test_expect_success 'assert submod1 HEAD is attached in cloned repo' '
+ (
+ cd repoclone/submod1 &&
+ test "$(git rev-parse --abbrev-ref HEAD)" != "HEAD"
+ )
+'
+
+test_expect_success 'update submodules with --detach in cloned repo' '
+ (
+ cd repoclone &&
+ git submodule update --detach
+ )
+'
+
+test_expect_success 'assert submod1 HEAD is detached in cloned repo' '
+ (
+ cd repoclone/submod1 &&
+ test "$(git rev-parse --abbrev-ref HEAD)" = "HEAD"
+ )
+'
+
+test_expect_success 'assert submod2 HEAD is detached in cloned repo' '
+ (
+ cd repoclone/submod2 &&
+ test "$(git rev-parse --abbrev-ref HEAD)" = "HEAD"
+ )
+'
+
+test_expect_success 'update submodules in cloned repo (will restore HEAD states)' '
+ (
+ cd repoclone &&
+ git submodule update
+ )
+'
+
+test_expect_success 'assert submod1 HEAD is detached in cloned repo' '
+ (
+ cd repoclone/submod1 &&
+ test "$(git rev-parse --abbrev-ref HEAD)" = "HEAD"
+ )
+'
+
+test_expect_success 'assert submod2 HEAD is attached in cloned repo' '
+ (
+ cd repoclone/submod2 &&
+ test "$(git rev-parse --abbrev-ref HEAD)" != "HEAD"
+ )
+'
+
+test_expect_success 'setup - add update operation to submodules' '
+ (
+ cd repo &&
+ git config -f .gitmodules submodule.submod1.update merge &&
+ git config -f .gitmodules submodule.submod2.update rebase &&
+ git add . &&
+ git commit -m "updated submodules"
+ )
+'
+
+test_expect_success 'setup - update cloned repo and reinitialize submodules' '
+ (
+ cd repoclone &&
+ git pull &&
+ git submodule init
+ )
+'
+
+test_expect_success 'add some content to repo2' '
+ (
+ cd repo2 &&
+ echo b >b &&
+ git add b &&
+ git commit -m "repo2 commit 2"
+ )
+'
+
+test_expect_success 'update sumodules in cloned repo and verify that submod2 matches repo2' '
+ (
+ cd repoclone &&
+ git submodule update &&
+ test -e submod2/b
+ )
+'
+
+test_expect_success 'prepend some content to repo1/a' '
+ (
+ cd repo1 &&
+ echo -e "b\na" >a &&
+ git add a &&
+ git commit -m "repo1 commit 2"
+ )
+'
+
+test_expect_success 'append some content in repoclone/submod1 and commit' '
+ (
+ cd repoclone/submod1 &&
+ echo c >>a &&
+ git add a &&
+ git commit -m "submod1 commit 1"
+ )
+'
+
+test_expect_success 'update repoclone submodules with --attach' '
+ (
+ cd repoclone &&
+ git submodule update --attach
+ )
+'
+
+test_expect_success 'verify repoclone submod1 merge with reattached orphaned commits was correct' '
+ (
+ cd repoclone/submod1 &&
+ test "$(<a)" = "$'b\na\nc'"
+ )
+'
+
+test_expect_success 'setup - set operation checkout to submodule sumod1 in repo' '
+ (
+ cd repo &&
+ git config -f .gitmodules submodule.submod1.update checkout &&
+ git add . &&
+ git commit -m "updated submodules"
+ )
+'
+
+test_expect_success 'setup - update cloned repo and reinitialize submodules' '
+ (
+ cd repoclone &&
+ git pull &&
+ git submodule init
+ )
+'
+
+test_expect_success 'add some content to repo1' '
+ (
+ cd repo1 &&
+ echo b >b &&
+ git add b &&
+ git commit -m "repo1 commit 3"
+ )
+'
+
+test_expect_success 'update submodule submod2 (merge ff-only) and verify it matches repo2' '
+ (
+ cd repoclone &&
+ git submodule update &&
+ test -e submod2/b
+ )
+'
+
+test_done
--
1.8.5.2.230.g032cd47.dirty
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