submodule: teach set-url subcommand

Currently, in the event that a submodule's upstream URL changes, users
have to manually alter the URL in the .gitmodules file then run
`git submodule sync`. Let's make that process easier.

Teach submodule the set-url subcommand which will automatically change
the `submodule.$name.url` property in the .gitmodules file and then run
`git submodule sync` to complete the process.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Denton Liu 2019-10-29 10:01:52 -07:00 committed by Junio C Hamano
parent 566a1439f6
commit 26b061007c
4 changed files with 113 additions and 2 deletions

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@ -16,6 +16,7 @@ SYNOPSIS
'git submodule' [--quiet] deinit [-f|--force] (--all|[--] <path>...)
'git submodule' [--quiet] update [<options>] [--] [<path>...]
'git submodule' [--quiet] set-branch [<options>] [--] <path>
'git submodule' [--quiet] set-url [--] <path> <newurl>
'git submodule' [--quiet] summary [<options>] [--] [<path>...]
'git submodule' [--quiet] foreach [--recursive] <command>
'git submodule' [--quiet] sync [--recursive] [--] [<path>...]
@ -180,6 +181,11 @@ set-branch (-d|--default) [--] <path>::
`--default` option removes the submodule.<name>.branch configuration
key, which causes the tracking branch to default to 'master'.
set-url [--] <path> <newurl>::
Sets the URL of the specified submodule to <newurl>. Then, it will
automatically synchronize the submodule's new remote URL
configuration.
summary [--cached|--files] [(-n|--summary-limit) <n>] [commit] [--] [<path>...]::
Show commit summary between the given commit (defaults to HEAD) and
working tree/index. For a submodule in question, a series of commits

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@ -2779,7 +2779,7 @@ _git_submodule ()
{
__git_has_doubledash && return
local subcommands="add status init deinit update set-branch summary foreach sync absorbgitdirs"
local subcommands="add status init deinit update set-branch set-url summary foreach sync absorbgitdirs"
local subcommand="$(__git_find_on_cmdline "$subcommands")"
if [ -z "$subcommand" ]; then
case "$cur" in

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@ -12,6 +12,7 @@ USAGE="[--quiet] [--cached]
or: $dashless [--quiet] deinit [-f|--force] (--all| [--] <path>...)
or: $dashless [--quiet] update [--init] [--remote] [-N|--no-fetch] [-f|--force] [--checkout|--merge|--rebase] [--[no-]recommend-shallow] [--reference <repository>] [--recursive] [--] [<path>...]
or: $dashless [--quiet] set-branch (--default|--branch <branch>) [--] <path>
or: $dashless [--quiet] set-url [--] <path> <newurl>
or: $dashless [--quiet] summary [--cached|--files] [--summary-limit <n>] [commit] [--] [<path>...]
or: $dashless [--quiet] foreach [--recursive] <command>
or: $dashless [--quiet] sync [--recursive] [--] [<path>...]
@ -760,6 +761,55 @@ cmd_set_branch() {
fi
}
#
# Configures a submodule's remote url
#
# $@ = requested path, requested url
#
cmd_set_url() {
while test $# -ne 0
do
case "$1" in
-q|--quiet)
GIT_QUIET=1
;;
--)
shift
break
;;
-*)
usage
;;
*)
break
;;
esac
shift
done
if test $# -ne 2
then
usage
fi
# we can't use `git submodule--helper name` here because internally, it
# hashes the path so a trailing slash could lead to an unintentional no match
name="$(git submodule--helper list "$1" | cut -f2)"
if test -z "$name"
then
exit 1
fi
url="$2"
if test -z "$url"
then
exit 1
fi
git submodule--helper config submodule."$name".url "$url"
git submodule--helper sync ${GIT_QUIET:+--quiet} "$name"
}
#
# Show commit summary for submodules in index or working tree
#
@ -1059,7 +1109,7 @@ cmd_absorbgitdirs()
while test $# != 0 && test -z "$command"
do
case "$1" in
add | foreach | init | deinit | update | set-branch | status | summary | sync | absorbgitdirs)
add | foreach | init | deinit | update | set-branch | set-url | status | summary | sync | absorbgitdirs)
command=$1
;;
-q|--quiet)

55
t/t7420-submodule-set-url.sh Executable file
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@ -0,0 +1,55 @@
#!/bin/sh
#
# Copyright (c) 2019 Denton Liu
#
test_description='Test submodules set-url subcommand
This test verifies that the set-url subcommand of git-submodule is working
as expected.
'
TEST_NO_CREATE_REPO=1
. ./test-lib.sh
test_expect_success 'submodule config cache setup' '
mkdir submodule &&
(
cd submodule &&
git init &&
echo a >file &&
git add file &&
git commit -ma
) &&
mkdir super &&
(
cd super &&
git init &&
git submodule add ../submodule &&
git commit -m "add submodule"
)
'
test_expect_success 'test submodule set-url' '
# add a commit and move the submodule (change the url)
(
cd submodule &&
echo b >>file &&
git add file &&
git commit -mb
) &&
mv submodule newsubmodule &&
git -C newsubmodule show >expect &&
(
cd super &&
test_must_fail git submodule update --remote &&
git submodule set-url submodule ../newsubmodule &&
grep -F "url = ../newsubmodule" .gitmodules &&
git submodule update --remote
) &&
git -C super/submodule show >actual &&
test_cmp expect actual
'
test_done