mirror of
https://github.com/git/git.git
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f030c96d86
Add a $toplevel variable accessible to `git submodule foreach`, it
contains the absolute path of the top level directory (where
.gitmodules is).
This makes it possible to e.g. read data in .gitmodules from within
foreach commands. I'm using this to configure the branch names I want
to track for each submodule:
git submodule foreach 'git checkout $(git config --file $toplevel/.gitmodules submodule.$name.branch) && git pull'
For a little history: This patch is borne out of my continuing fight
of trying to have Git track the branches of submodules, not just their
commits.
Obviously that's not how they work (they only track commits), but I'm
just interested in being able to do:
git submodule foreach 'git pull'
Of course that won't work because the submodule is in a disconnected
head, so I first have to connect it, but connect it *to what*.
For a while I was happy with this because as fate had it, it just so
happened to do what I meant:
git submodule foreach 'git checkout $(git describe --all --always) && git pull'
But then that broke down, if there's a tag and a branch the tag will
win out, and I can't git pull a branch:
$ git branch -a
* master
remotes/origin/HEAD -> origin/master
remotes/origin/master
$ git tag -l
release-0.0.6
$ git describe --always --all
release-0.0.6
So I figured that I might as well start tracking the branches I want
in .gitmodules itself:
[submodule "yaml-mode"]
path = yaml-mode
url = git://github.com/yoshiki/yaml-mode.git
branch = master
So now I can just do (as stated above):
git submodule foreach 'git checkout $(git config --file $toplevel/.gitmodules submodule.$name.branch) && git pull'
Maybe there's a less painful way to do *that* (I'd love to hear about
it). But regardless of that I think it's a good idea to be able to
know what the top-level is from git submodule foreach.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
895 lines
17 KiB
Bash
Executable File
895 lines
17 KiB
Bash
Executable File
#!/bin/sh
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#
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# git-submodules.sh: add, init, update or list git submodules
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#
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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] [--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] [--rebase] [--reference <repository>] [--merge] [--recursive] [--] [<path>...]
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or: $dashless [--quiet] summary [--cached|--files] [--summary-limit <n>] [commit] [--] [<path>...]
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or: $dashless [--quiet] foreach [--recursive] <command>
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or: $dashless [--quiet] sync [--] [<path>...]"
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OPTIONS_SPEC=
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. git-sh-setup
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. git-parse-remote
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require_work_tree
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command=
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branch=
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reference=
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cached=
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recursive=
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init=
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files=
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nofetch=
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update=
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prefix=
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# Resolve relative url by appending to parent's url
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resolve_relative_url ()
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{
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remote=$(get_default_remote)
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remoteurl=$(git config "remote.$remote.url") ||
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die "remote ($remote) does not have a url defined in .git/config"
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url="$1"
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remoteurl=${remoteurl%/}
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while test -n "$url"
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do
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case "$url" in
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../*)
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url="${url#../}"
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remoteurl="${remoteurl%/*}"
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;;
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./*)
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url="${url#./}"
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;;
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*)
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break;;
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esac
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done
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echo "$remoteurl/${url%/}"
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}
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#
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# Get submodule info for registered submodules
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# $@ = path to limit submodule list
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#
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module_list()
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{
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git ls-files --error-unmatch --stage -- "$@" | sane_grep '^160000 '
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}
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#
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# Map submodule path to submodule name
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#
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# $1 = path
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#
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module_name()
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{
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# Do we have "submodule.<something>.path = $1" defined in .gitmodules file?
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re=$(printf '%s\n' "$1" | sed -e 's/[].[^$\\*]/\\&/g')
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name=$( git config -f .gitmodules --get-regexp '^submodule\..*\.path$' |
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sed -n -e 's|^submodule\.\(.*\)\.path '"$re"'$|\1|p' )
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test -z "$name" &&
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die "No submodule mapping found in .gitmodules for path '$path'"
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echo "$name"
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}
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#
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# Clone a submodule
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#
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# Prior to calling, cmd_update checks that a possibly existing
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# path is not a git repository.
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# Likewise, cmd_add checks that path does not exist at all,
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# since it is the location of a new submodule.
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#
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module_clone()
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{
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path=$1
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url=$2
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reference="$3"
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# If there already is a directory at the submodule path,
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# expect it to be empty (since that is the default checkout
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# action) and try to remove it.
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# Note: if $path is a symlink to a directory the test will
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# succeed but the rmdir will fail. We might want to fix this.
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if test -d "$path"
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then
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rmdir "$path" 2>/dev/null ||
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die "Directory '$path' exists, but is neither empty nor a git repository"
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fi
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test -e "$path" &&
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die "A file already exist at path '$path'"
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if test -n "$reference"
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then
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git-clone "$reference" -n "$url" "$path"
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else
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git-clone -n "$url" "$path"
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fi ||
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die "Clone of '$url' into submodule path '$path' failed"
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}
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#
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# Add a new submodule to the working tree, .gitmodules and the index
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#
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# $@ = repo path
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#
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# optional branch is stored in global branch variable
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#
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cmd_add()
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{
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# parse $args after "submodule ... add".
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while test $# -ne 0
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do
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case "$1" in
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-b | --branch)
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case "$2" in '') usage ;; esac
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branch=$2
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shift
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;;
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-q|--quiet)
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GIT_QUIET=1
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;;
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--reference)
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case "$2" in '') usage ;; esac
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reference="--reference=$2"
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shift
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;;
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--reference=*)
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reference="$1"
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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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;;
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-*)
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usage
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;;
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*)
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break
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;;
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esac
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shift
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done
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repo=$1
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path=$2
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if test -z "$path"; then
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path=$(echo "$repo" |
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sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
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fi
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if test -z "$repo" -o -z "$path"; then
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usage
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fi
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# assure repo is absolute or relative to parent
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case "$repo" in
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./*|../*)
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# dereference source url relative to parent's url
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realrepo=$(resolve_relative_url "$repo") || exit
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;;
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*:*|/*)
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# absolute url
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realrepo=$repo
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;;
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*)
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die "repo URL: '$repo' must be absolute or begin with ./|../"
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;;
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esac
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# normalize path:
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# multiple //; leading ./; /./; /../; trailing /
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path=$(printf '%s/\n' "$path" |
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sed -e '
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s|//*|/|g
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s|^\(\./\)*||
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s|/\./|/|g
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:start
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s|\([^/]*\)/\.\./||
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tstart
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s|/*$||
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')
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git ls-files --error-unmatch "$path" > /dev/null 2>&1 &&
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die "'$path' already exists in the index"
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# perhaps the path exists and is already a git repo, else clone it
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if test -e "$path"
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then
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if test -d "$path"/.git -o -f "$path"/.git
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then
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echo "Adding existing repo at '$path' to the index"
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else
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die "'$path' already exists and is not a valid git repo"
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fi
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case "$repo" in
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./*|../*)
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url=$(resolve_relative_url "$repo") || exit
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;;
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*)
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url="$repo"
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;;
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esac
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git config submodule."$path".url "$url"
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else
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module_clone "$path" "$realrepo" "$reference" || exit
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(
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clear_local_git_env
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cd "$path" &&
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# ash fails to wordsplit ${branch:+-b "$branch"...}
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case "$branch" in
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'') git checkout -f -q ;;
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?*) git checkout -f -q -b "$branch" "origin/$branch" ;;
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esac
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) || die "Unable to checkout submodule '$path'"
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fi
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git add "$path" ||
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die "Failed to add submodule '$path'"
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git config -f .gitmodules submodule."$path".path "$path" &&
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git config -f .gitmodules submodule."$path".url "$repo" &&
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git add .gitmodules ||
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die "Failed to register submodule '$path'"
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}
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#
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# Execute an arbitrary command sequence in each checked out
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# submodule
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#
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# $@ = command to execute
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#
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cmd_foreach()
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{
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# parse $args after "submodule ... foreach".
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while test $# -ne 0
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do
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case "$1" in
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-q|--quiet)
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GIT_QUIET=1
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;;
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--recursive)
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recursive=1
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;;
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-*)
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usage
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;;
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*)
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break
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;;
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esac
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shift
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done
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toplevel=$(pwd)
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module_list |
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while read mode sha1 stage path
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do
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if test -e "$path"/.git
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then
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say "Entering '$prefix$path'"
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name=$(module_name "$path")
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(
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prefix="$prefix$path/"
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clear_local_git_env
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cd "$path" &&
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eval "$@" &&
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if test -n "$recursive"
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then
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cmd_foreach "--recursive" "$@"
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fi
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) ||
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die "Stopping at '$path'; script returned non-zero status."
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fi
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done
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}
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#
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# Register submodules in .git/config
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#
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# $@ = requested paths (default to all)
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#
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cmd_init()
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{
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# parse $args after "submodule ... init".
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while test $# -ne 0
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do
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case "$1" in
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-q|--quiet)
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GIT_QUIET=1
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;;
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--)
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shift
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break
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;;
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-*)
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usage
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;;
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*)
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break
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;;
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esac
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shift
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done
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module_list "$@" |
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while read mode sha1 stage path
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do
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# Skip already registered paths
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name=$(module_name "$path") || exit
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url=$(git config submodule."$name".url)
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test -z "$url" || continue
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url=$(git config -f .gitmodules submodule."$name".url)
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test -z "$url" &&
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die "No url found for submodule path '$path' in .gitmodules"
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# Possibly a url relative to parent
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case "$url" in
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./*|../*)
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url=$(resolve_relative_url "$url") || exit
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;;
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esac
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git config submodule."$name".url "$url" ||
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die "Failed to register url for submodule path '$path'"
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upd="$(git config -f .gitmodules submodule."$name".update)"
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test -z "$upd" ||
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git config submodule."$name".update "$upd" ||
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die "Failed to register update mode for submodule path '$path'"
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say "Submodule '$name' ($url) registered for path '$path'"
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done
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}
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#
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# Update each submodule path to correct revision, using clone and checkout as needed
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#
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# $@ = requested paths (default to all)
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#
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cmd_update()
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{
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# parse $args after "submodule ... update".
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orig_args="$@"
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while test $# -ne 0
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do
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case "$1" in
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-q|--quiet)
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shift
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GIT_QUIET=1
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;;
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-i|--init)
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init=1
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shift
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;;
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-N|--no-fetch)
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shift
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nofetch=1
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;;
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-r|--rebase)
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shift
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update="rebase"
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;;
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--reference)
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case "$2" in '') usage ;; esac
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reference="--reference=$2"
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shift 2
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;;
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--reference=*)
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reference="$1"
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shift
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;;
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-m|--merge)
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shift
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update="merge"
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;;
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--recursive)
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shift
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recursive=1
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;;
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--)
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shift
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break
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;;
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-*)
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usage
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;;
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*)
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break
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;;
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esac
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done
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if test -n "$init"
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then
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cmd_init "--" "$@" || return
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fi
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module_list "$@" |
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while read mode sha1 stage path
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do
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name=$(module_name "$path") || exit
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url=$(git config submodule."$name".url)
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update_module=$(git config submodule."$name".update)
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if test -z "$url"
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then
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# Only mention uninitialized submodules when its
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# path have been specified
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test "$#" != "0" &&
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say "Submodule path '$path' not initialized" &&
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say "Maybe you want to use 'update --init'?"
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continue
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fi
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if ! test -d "$path"/.git -o -f "$path"/.git
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then
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module_clone "$path" "$url" "$reference"|| exit
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subsha1=
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else
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subsha1=$(clear_local_git_env; cd "$path" &&
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git rev-parse --verify HEAD) ||
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die "Unable to find current revision in submodule path '$path'"
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fi
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if ! test -z "$update"
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then
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update_module=$update
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fi
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if test "$subsha1" != "$sha1"
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then
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force=
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if test -z "$subsha1"
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then
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force="-f"
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fi
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if test -z "$nofetch"
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then
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(clear_local_git_env; cd "$path" &&
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git-fetch) ||
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die "Unable to fetch in submodule path '$path'"
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fi
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case "$update_module" in
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rebase)
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command="git rebase"
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action="rebase"
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msg="rebased onto"
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;;
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merge)
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command="git merge"
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action="merge"
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msg="merged in"
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;;
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*)
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command="git checkout $force -q"
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action="checkout"
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msg="checked out"
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;;
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esac
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(clear_local_git_env; cd "$path" && $command "$sha1") ||
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die "Unable to $action '$sha1' in submodule path '$path'"
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say "Submodule path '$path': $msg '$sha1'"
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fi
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if test -n "$recursive"
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then
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(clear_local_git_env; cd "$path" && cmd_update $orig_args) ||
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die "Failed to recurse into submodule path '$path'"
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fi
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done
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}
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set_name_rev () {
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revname=$( (
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clear_local_git_env
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cd "$1" && {
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git describe "$2" 2>/dev/null ||
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git describe --tags "$2" 2>/dev/null ||
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git describe --contains "$2" 2>/dev/null ||
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git describe --all --always "$2"
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}
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) )
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test -z "$revname" || revname=" ($revname)"
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}
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#
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# Show commit summary for submodules in index or working tree
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#
|
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# If '--cached' is given, show summary between index and given commit,
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# or between working tree and given commit
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#
|
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# $@ = [commit (default 'HEAD'),] requested paths (default all)
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#
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cmd_summary() {
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summary_limit=-1
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for_status=
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diff_cmd=diff-index
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|
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# parse $args after "submodule ... summary".
|
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while test $# -ne 0
|
|
do
|
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case "$1" in
|
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--cached)
|
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cached="$1"
|
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;;
|
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--files)
|
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files="$1"
|
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;;
|
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--for-status)
|
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for_status="$1"
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;;
|
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-n|--summary-limit)
|
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if summary_limit=$(($2 + 0)) 2>/dev/null && test "$summary_limit" = "$2"
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then
|
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:
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else
|
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usage
|
|
fi
|
|
shift
|
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;;
|
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--)
|
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shift
|
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break
|
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;;
|
|
-*)
|
|
usage
|
|
;;
|
|
*)
|
|
break
|
|
;;
|
|
esac
|
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shift
|
|
done
|
|
|
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test $summary_limit = 0 && return
|
|
|
|
if rev=$(git rev-parse -q --verify --default HEAD ${1+"$1"})
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then
|
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head=$rev
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test $# = 0 || shift
|
|
elif test -z "$1" -o "$1" = "HEAD"
|
|
then
|
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# before the first commit: compare with an empty tree
|
|
head=$(git hash-object -w -t tree --stdin </dev/null)
|
|
test -z "$1" || shift
|
|
else
|
|
head="HEAD"
|
|
fi
|
|
|
|
if [ -n "$files" ]
|
|
then
|
|
test -n "$cached" &&
|
|
die "--cached cannot be used with --files"
|
|
diff_cmd=diff-files
|
|
head=
|
|
fi
|
|
|
|
cd_to_toplevel
|
|
# Get modified modules cared by user
|
|
modules=$(git $diff_cmd $cached --raw $head -- "$@" |
|
|
sane_egrep '^:([0-7]* )?160000' |
|
|
while read mod_src mod_dst sha1_src sha1_dst status name
|
|
do
|
|
# Always show modules deleted or type-changed (blob<->module)
|
|
test $status = D -o $status = T && echo "$name" && continue
|
|
# Also show added or modified modules which are checked out
|
|
GIT_DIR="$name/.git" git-rev-parse --git-dir >/dev/null 2>&1 &&
|
|
echo "$name"
|
|
done
|
|
)
|
|
|
|
test -z "$modules" && return
|
|
|
|
git $diff_cmd $cached --raw $head -- $modules |
|
|
sane_egrep '^:([0-7]* )?160000' |
|
|
cut -c2- |
|
|
while read mod_src mod_dst sha1_src sha1_dst status name
|
|
do
|
|
if test -z "$cached" &&
|
|
test $sha1_dst = 0000000000000000000000000000000000000000
|
|
then
|
|
case "$mod_dst" in
|
|
160000)
|
|
sha1_dst=$(GIT_DIR="$name/.git" git rev-parse HEAD)
|
|
;;
|
|
100644 | 100755 | 120000)
|
|
sha1_dst=$(git hash-object $name)
|
|
;;
|
|
000000)
|
|
;; # removed
|
|
*)
|
|
# unexpected type
|
|
echo >&2 "unexpected mode $mod_dst"
|
|
continue ;;
|
|
esac
|
|
fi
|
|
missing_src=
|
|
missing_dst=
|
|
|
|
test $mod_src = 160000 &&
|
|
! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_src^0 >/dev/null &&
|
|
missing_src=t
|
|
|
|
test $mod_dst = 160000 &&
|
|
! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_dst^0 >/dev/null &&
|
|
missing_dst=t
|
|
|
|
total_commits=
|
|
case "$missing_src,$missing_dst" in
|
|
t,)
|
|
errmsg=" Warn: $name doesn't contain commit $sha1_src"
|
|
;;
|
|
,t)
|
|
errmsg=" Warn: $name doesn't contain commit $sha1_dst"
|
|
;;
|
|
t,t)
|
|
errmsg=" Warn: $name doesn't contain commits $sha1_src and $sha1_dst"
|
|
;;
|
|
*)
|
|
errmsg=
|
|
total_commits=$(
|
|
if test $mod_src = 160000 -a $mod_dst = 160000
|
|
then
|
|
range="$sha1_src...$sha1_dst"
|
|
elif test $mod_src = 160000
|
|
then
|
|
range=$sha1_src
|
|
else
|
|
range=$sha1_dst
|
|
fi
|
|
GIT_DIR="$name/.git" \
|
|
git rev-list --first-parent $range -- | wc -l
|
|
)
|
|
total_commits=" ($(($total_commits + 0)))"
|
|
;;
|
|
esac
|
|
|
|
sha1_abbr_src=$(echo $sha1_src | cut -c1-7)
|
|
sha1_abbr_dst=$(echo $sha1_dst | cut -c1-7)
|
|
if test $status = T
|
|
then
|
|
if test $mod_dst = 160000
|
|
then
|
|
echo "* $name $sha1_abbr_src(blob)->$sha1_abbr_dst(submodule)$total_commits:"
|
|
else
|
|
echo "* $name $sha1_abbr_src(submodule)->$sha1_abbr_dst(blob)$total_commits:"
|
|
fi
|
|
else
|
|
echo "* $name $sha1_abbr_src...$sha1_abbr_dst$total_commits:"
|
|
fi
|
|
if test -n "$errmsg"
|
|
then
|
|
# Don't give error msg for modification whose dst is not submodule
|
|
# i.e. deleted or changed to blob
|
|
test $mod_dst = 160000 && echo "$errmsg"
|
|
else
|
|
if test $mod_src = 160000 -a $mod_dst = 160000
|
|
then
|
|
limit=
|
|
test $summary_limit -gt 0 && limit="-$summary_limit"
|
|
GIT_DIR="$name/.git" \
|
|
git log $limit --pretty='format: %m %s' \
|
|
--first-parent $sha1_src...$sha1_dst
|
|
elif test $mod_dst = 160000
|
|
then
|
|
GIT_DIR="$name/.git" \
|
|
git log --pretty='format: > %s' -1 $sha1_dst
|
|
else
|
|
GIT_DIR="$name/.git" \
|
|
git log --pretty='format: < %s' -1 $sha1_src
|
|
fi
|
|
echo
|
|
fi
|
|
echo
|
|
done |
|
|
if test -n "$for_status"; then
|
|
if [ -n "$files" ]; then
|
|
echo "# Submodules changed but not updated:"
|
|
else
|
|
echo "# Submodule changes to be committed:"
|
|
fi
|
|
echo "#"
|
|
sed -e 's|^|# |' -e 's|^# $|#|'
|
|
else
|
|
cat
|
|
fi
|
|
}
|
|
#
|
|
# List all submodules, prefixed with:
|
|
# - submodule not initialized
|
|
# + different revision checked out
|
|
#
|
|
# If --cached was specified the revision in the index will be printed
|
|
# instead of the currently checked out revision.
|
|
#
|
|
# $@ = requested paths (default to all)
|
|
#
|
|
cmd_status()
|
|
{
|
|
# parse $args after "submodule ... status".
|
|
orig_args="$@"
|
|
while test $# -ne 0
|
|
do
|
|
case "$1" in
|
|
-q|--quiet)
|
|
GIT_QUIET=1
|
|
;;
|
|
--cached)
|
|
cached=1
|
|
;;
|
|
--recursive)
|
|
recursive=1
|
|
;;
|
|
--)
|
|
shift
|
|
break
|
|
;;
|
|
-*)
|
|
usage
|
|
;;
|
|
*)
|
|
break
|
|
;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
module_list "$@" |
|
|
while read mode sha1 stage path
|
|
do
|
|
name=$(module_name "$path") || exit
|
|
url=$(git config submodule."$name".url)
|
|
displaypath="$prefix$path"
|
|
if test -z "$url" || ! test -d "$path"/.git -o -f "$path"/.git
|
|
then
|
|
say "-$sha1 $displaypath"
|
|
continue;
|
|
fi
|
|
set_name_rev "$path" "$sha1"
|
|
if git diff-files --quiet -- "$path"
|
|
then
|
|
say " $sha1 $displaypath$revname"
|
|
else
|
|
if test -z "$cached"
|
|
then
|
|
sha1=$(clear_local_git_env; cd "$path" && git rev-parse --verify HEAD)
|
|
set_name_rev "$path" "$sha1"
|
|
fi
|
|
say "+$sha1 $displaypath$revname"
|
|
fi
|
|
|
|
if test -n "$recursive"
|
|
then
|
|
(
|
|
prefix="$displaypath/"
|
|
clear_local_git_env
|
|
cd "$path" &&
|
|
cmd_status $orig_args
|
|
) ||
|
|
die "Failed to recurse into submodule path '$path'"
|
|
fi
|
|
done
|
|
}
|
|
#
|
|
# Sync remote urls for submodules
|
|
# This makes the value for remote.$remote.url match the value
|
|
# specified in .gitmodules.
|
|
#
|
|
cmd_sync()
|
|
{
|
|
while test $# -ne 0
|
|
do
|
|
case "$1" in
|
|
-q|--quiet)
|
|
GIT_QUIET=1
|
|
shift
|
|
;;
|
|
--)
|
|
shift
|
|
break
|
|
;;
|
|
-*)
|
|
usage
|
|
;;
|
|
*)
|
|
break
|
|
;;
|
|
esac
|
|
done
|
|
cd_to_toplevel
|
|
module_list "$@" |
|
|
while read mode sha1 stage path
|
|
do
|
|
name=$(module_name "$path")
|
|
url=$(git config -f .gitmodules --get submodule."$name".url)
|
|
|
|
# Possibly a url relative to parent
|
|
case "$url" in
|
|
./*|../*)
|
|
url=$(resolve_relative_url "$url") || exit
|
|
;;
|
|
esac
|
|
|
|
if test -e "$path"/.git
|
|
then
|
|
(
|
|
clear_local_git_env
|
|
cd "$path"
|
|
remote=$(get_default_remote)
|
|
say "Synchronizing submodule url for '$name'"
|
|
git config remote."$remote".url "$url"
|
|
)
|
|
fi
|
|
done
|
|
}
|
|
|
|
# This loop parses the command line arguments to find the
|
|
# subcommand name to dispatch. Parsing of the subcommand specific
|
|
# options are primarily done by the subcommand implementations.
|
|
# Subcommand specific options such as --branch and --cached are
|
|
# parsed here as well, for backward compatibility.
|
|
|
|
while test $# != 0 && test -z "$command"
|
|
do
|
|
case "$1" in
|
|
add | foreach | init | update | status | summary | sync)
|
|
command=$1
|
|
;;
|
|
-q|--quiet)
|
|
GIT_QUIET=1
|
|
;;
|
|
-b|--branch)
|
|
case "$2" in
|
|
'')
|
|
usage
|
|
;;
|
|
esac
|
|
branch="$2"; shift
|
|
;;
|
|
--cached)
|
|
cached="$1"
|
|
;;
|
|
--)
|
|
break
|
|
;;
|
|
-*)
|
|
usage
|
|
;;
|
|
*)
|
|
break
|
|
;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
# No command word defaults to "status"
|
|
test -n "$command" || command=status
|
|
|
|
# "-b branch" is accepted only by "add"
|
|
if test -n "$branch" && test "$command" != add
|
|
then
|
|
usage
|
|
fi
|
|
|
|
# "--cached" is accepted only by "status" and "summary"
|
|
if test -n "$cached" && test "$command" != status -a "$command" != summary
|
|
then
|
|
usage
|
|
fi
|
|
|
|
"cmd_$command" "$@"
|