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submodule--helper: introduce add-clone subcommand

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Let's add a new "add-clone" subcommand to `git submodule--helper` with
the goal of converting part of the shell code in git-submodule.sh
related to `git submodule add` into C code. This new subcommand clones
the repository that is to be added, and checks out to the appropriate
branch.

This is meant to be a faithful conversion that leaves the behaviour of
'cmd_add()' script unchanged.

Signed-off-by: Atharva Raykar <raykar.ath@gmail.com>
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Shourya Shukla <periperidip@gmail.com>
Based-on-patch-by: Shourya Shukla <periperidip@gmail.com>
Based-on-patch-by: Prathamesh Chavan <pc44800@gmail.com>
Helped-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Atharva Raykar
2021-07-10 13:18:01 +05:30
committed by Junio C Hamano
parent a98b02c112
commit 8c8195e9c3
2 changed files with 178 additions and 37 deletions
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38
git-submodule.sh
View File

@@ -241,43 +241,7 @@ cmd_add()
die "fatal: $(eval_gettext "'$sm_name' is not a valid submodule name")"
fi
# perhaps the path exists and is already a git repo, else clone it
if test -e "$sm_path"
then
if test -d "$sm_path"/.git || test -f "$sm_path"/.git
then
eval_gettextln "Adding existing repo at '\$sm_path' to the index"
else
die "$(eval_gettext "'\$sm_path' already exists and is not a valid git repo")"
fi
else
if test -d ".git/modules/$sm_name"
then
if test -z "$force"
then
eval_gettextln >&2 "A git directory for '\$sm_name' is found locally with remote(s):"
GIT_DIR=".git/modules/$sm_name" GIT_WORK_TREE=. git remote -v | grep '(fetch)' | sed -e s,^," ", -e s,' (fetch)',, >&2
die "$(eval_gettextln "\
If you want to reuse this local git directory instead of cloning again from
\$realrepo
use the '--force' option. If the local git directory is not the correct repo
or you are unsure what this means choose another name with the '--name' option.")"
else
eval_gettextln "Reactivating local git directory for submodule '\$sm_name'."
fi
fi
git submodule--helper clone ${GIT_QUIET:+--quiet} ${progress:+"--progress"} --prefix "$wt_prefix" --path "$sm_path" --name "$sm_name" --url "$realrepo" ${reference:+"$reference"} ${dissociate:+"--dissociate"} ${depth:+"$depth"} || exit
(
sanitize_submodule_env
cd "$sm_path" &&
# ash fails to wordsplit ${branch:+-b "$branch"...}
case "$branch" in
'') git checkout -f -q ;;
?*) git checkout -f -q -B "$branch" "origin/$branch" ;;
esac
) || die "$(eval_gettext "Unable to checkout submodule '\$sm_path'")"
fi
git submodule--helper add-clone ${GIT_QUIET:+--quiet} ${force:+"--force"} ${progress:+"--progress"} ${branch:+--branch "$branch"} --prefix "$wt_prefix" --path "$sm_path" --name "$sm_name" --url "$realrepo" ${reference:+"$reference"} ${dissociate:+"--dissociate"} ${depth:+"$depth"} || exit
git config submodule."$sm_name".url "$realrepo"
git add --no-warn-embedded-repo $force "$sm_path" ||