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Merge branch 'jl/submodule-add-by-name'
If you remove a submodule, in order to keep the repository so that "git checkout" to an older commit in the superproject history can resurrect the submodule, the real repository will stay in $GIT_DIR of the superproject. A later "git submodule add $path" to add a different submodule at the same path will fail. Diagnose this case a bit better, and if the user really wants to add an unrelated submodule at the same path, give the "--name" option to give it a place in $GIT_DIR of the superproject that does not conflict with the original submodule. * jl/submodule-add-by-name: submodule add: Fail when .git/modules/<name> already exists unless forced Teach "git submodule add" the --name option
This commit is contained in:
Jeff King
commit
fdb4d27158
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@ -9,7 +9,7 @@ git-submodule - Initialize, update or inspect submodules
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SYNOPSIS
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--------
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[verse]
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'git submodule' [--quiet] add [-b branch] [-f|--force]
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'git submodule' [--quiet] add [-b branch] [-f|--force] [--name <name>]
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[--reference <repository>] [--] <repository> [<path>]
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'git submodule' [--quiet] status [--cached] [--recursive] [--] [<path>...]
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'git submodule' [--quiet] init [--] [<path>...]
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@ -265,6 +265,11 @@ OPTIONS
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Initialize all submodules for which "git submodule init" has not been
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called so far before updating.
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--name::
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This option is only valid for the add command. It sets the submodule's
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name to the given string instead of defaulting to its path. The name
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must be valid as a directory name and may not end with a '/'.
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--reference <repository>::
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This option is only valid for add and update commands. These
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commands sometimes need to clone a remote repository. In this case,
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@ -18,7 +18,9 @@ working tree, is a text file with a syntax matching the requirements
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of linkgit:git-config[1].
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The file contains one subsection per submodule, and the subsection value
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is the name of the submodule. Each submodule section also contains the
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is the name of the submodule. The name is set to the path where the
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submodule has been added unless it was customized with the '--name'
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option of 'git submodule add'. Each submodule section also contains the
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following required keys:
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submodule.<name>.path::
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@ -5,7 +5,7 @@
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# Copyright (c) 2007 Lars Hjemli
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dashless=$(basename "$0" | sed -e 's/-/ /')
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USAGE="[--quiet] add [-b branch] [-f|--force] [--reference <repository>] [--] <repository> [<path>]
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USAGE="[--quiet] add [-b branch] [-f|--force] [--name <name>] [--reference <repository>] [--] <repository> [<path>]
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or: $dashless [--quiet] status [--cached] [--recursive] [--] [<path>...]
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or: $dashless [--quiet] init [--] [<path>...]
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or: $dashless [--quiet] update [--init] [-N|--no-fetch] [-f|--force] [--rebase] [--reference <repository>] [--merge] [--recursive] [--] [<path>...]
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@ -29,6 +29,7 @@ files=
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nofetch=
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update=
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prefix=
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custom_name=
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# The function takes at most 2 arguments. The first argument is the
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# URL that navigates to the submodule origin repo. When relative, this URL
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@ -179,8 +180,9 @@ module_name()
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module_clone()
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{
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sm_path=$1
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url=$2
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reference="$3"
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name=$2
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url=$3
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reference="$4"
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quiet=
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if test -n "$GIT_QUIET"
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then
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@ -189,8 +191,6 @@ module_clone()
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gitdir=
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gitdir_base=
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name=$(module_name "$sm_path" 2>/dev/null)
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test -n "$name" || name="$sm_path"
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base_name=$(dirname "$name")
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gitdir=$(git rev-parse --git-dir)
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@ -272,6 +272,11 @@ cmd_add()
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reference="$1"
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shift
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;;
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--name)
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case "$2" in '') usage ;; esac
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custom_name=$2
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shift
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;;
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--)
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shift
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break
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@ -336,6 +341,13 @@ Use -f if you really want to add it." >&2
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exit 1
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fi
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if test -n "$custom_name"
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then
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sm_name="$custom_name"
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else
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sm_name="$sm_path"
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fi
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# perhaps the path exists and is already a git repo, else clone it
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if test -e "$sm_path"
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then
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@ -347,8 +359,21 @@ Use -f if you really want to add it." >&2
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fi
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else
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module_clone "$sm_path" "$realrepo" "$reference" || exit
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if test -d ".git/modules/$sm_name"
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then
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if test -z "$force"
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then
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echo >&2 "$(eval_gettext "A git directory for '\$sm_name' is found locally with remote(s):")"
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GIT_DIR=".git/modules/$sm_name" GIT_WORK_TREE=. git remote -v | grep '(fetch)' | sed -e s,^," ", -e s,' (fetch)',, >&2
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echo >&2 "$(eval_gettext "If you want to reuse this local git directory instead of cloning again from")"
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echo >&2 " $realrepo"
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echo >&2 "$(eval_gettext "use the '--force' option. If the local git directory is not the correct repo")"
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die "$(eval_gettext "or you are unsure what this means choose another name with the '--name' option.")"
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else
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echo "$(eval_gettext "Reactivating local git directory for submodule '\$sm_name'.")"
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fi
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fi
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module_clone "$sm_path" "$sm_name" "$realrepo" "$reference" || exit
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(
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clear_local_git_env
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cd "$sm_path" &&
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@ -359,13 +384,13 @@ Use -f if you really want to add it." >&2
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esac
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) || die "$(eval_gettext "Unable to checkout submodule '\$sm_path'")"
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fi
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git config submodule."$sm_path".url "$realrepo"
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git config submodule."$sm_name".url "$realrepo"
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git add $force "$sm_path" ||
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die "$(eval_gettext "Failed to add submodule '\$sm_path'")"
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git config -f .gitmodules submodule."$sm_path".path "$sm_path" &&
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git config -f .gitmodules submodule."$sm_path".url "$repo" &&
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git config -f .gitmodules submodule."$sm_name".path "$sm_path" &&
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git config -f .gitmodules submodule."$sm_name".url "$repo" &&
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git add --force .gitmodules ||
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die "$(eval_gettext "Failed to register submodule '\$sm_path'")"
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}
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@ -594,7 +619,7 @@ Maybe you want to use 'update --init'?")"
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if ! test -d "$sm_path"/.git -o -f "$sm_path"/.git
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then
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module_clone "$sm_path" "$url" "$reference"|| exit
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module_clone "$sm_path" "$name" "$url" "$reference" || exit
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cloned_modules="$cloned_modules;$name"
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subsha1=
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else
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@ -681,4 +681,79 @@ test_expect_success 'moving the superproject does not break submodules' '
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)
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'
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test_expect_success 'submodule add --name allows to replace a submodule with another at the same path' '
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(
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cd addtest2 &&
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(
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cd repo &&
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echo "$submodurl/repo" >expect &&
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git config remote.origin.url >actual &&
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test_cmp expect actual &&
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echo "gitdir: ../.git/modules/repo" >expect &&
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test_cmp expect .git
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) &&
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rm -rf repo &&
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git rm repo &&
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git submodule add -q --name repo_new "$submodurl/bare.git" repo >actual &&
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test ! -s actual &&
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echo "gitdir: ../.git/modules/submod" >expect &&
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test_cmp expect submod/.git &&
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(
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cd repo &&
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echo "$submodurl/bare.git" >expect &&
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git config remote.origin.url >actual &&
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test_cmp expect actual &&
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echo "gitdir: ../.git/modules/repo_new" >expect &&
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test_cmp expect .git
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) &&
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echo "repo" >expect &&
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git config -f .gitmodules submodule.repo.path >actual &&
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test_cmp expect actual &&
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git config -f .gitmodules submodule.repo_new.path >actual &&
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test_cmp expect actual&&
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echo "$submodurl/repo" >expect &&
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git config -f .gitmodules submodule.repo.url >actual &&
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test_cmp expect actual &&
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echo "$submodurl/bare.git" >expect &&
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git config -f .gitmodules submodule.repo_new.url >actual &&
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test_cmp expect actual &&
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echo "$submodurl/repo" >expect &&
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git config submodule.repo.url >actual &&
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test_cmp expect actual &&
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echo "$submodurl/bare.git" >expect &&
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git config submodule.repo_new.url >actual &&
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test_cmp expect actual
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)
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'
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test_expect_success 'submodule add with an existing name fails unless forced' '
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(
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cd addtest2 &&
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rm -rf repo &&
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git rm repo &&
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test_must_fail git submodule add -q --name repo_new "$submodurl/repo.git" repo &&
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test ! -d repo &&
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echo "repo" >expect &&
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git config -f .gitmodules submodule.repo_new.path >actual &&
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test_cmp expect actual&&
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echo "$submodurl/bare.git" >expect &&
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git config -f .gitmodules submodule.repo_new.url >actual &&
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test_cmp expect actual &&
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echo "$submodurl/bare.git" >expect &&
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git config submodule.repo_new.url >actual &&
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test_cmp expect actual &&
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git submodule add -f -q --name repo_new "$submodurl/repo.git" repo &&
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test -d repo &&
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echo "repo" >expect &&
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git config -f .gitmodules submodule.repo_new.path >actual &&
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test_cmp expect actual&&
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echo "$submodurl/repo.git" >expect &&
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git config -f .gitmodules submodule.repo_new.url >actual &&
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test_cmp expect actual &&
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echo "$submodurl/repo.git" >expect &&
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git config submodule.repo_new.url >actual &&
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test_cmp expect actual
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)
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'
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test_done
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@ -627,7 +627,7 @@ test_expect_success 'submodule add properly re-creates deeper level submodules'
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(cd super &&
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git reset --hard master &&
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rm -rf deeper/ &&
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git submodule add ../submodule deeper/submodule
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git submodule add --force ../submodule deeper/submodule
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)
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'
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