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876 lines
17 KiB
876 lines
17 KiB
#!/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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|
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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: $dashless [--quiet] sync [--] [<path>...]" |
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OPTIONS_SPEC= |
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. git-sh-setup |
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. git-parse-remote |
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require_work_tree |
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command= |
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branch= |
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reference= |
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cached= |
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files= |
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nofetch= |
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update= |
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prefix= |
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# Resolve relative url by appending to parent's url |
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resolve_relative_url () |
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{ |
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remote=$(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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# |
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# Get submodule info for registered submodules |
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# $@ = path to limit submodule list |
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# |
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module_list() |
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{ |
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git ls-files --error-unmatch --stage -- "$@" | grep '^160000 ' |
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} |
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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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# |
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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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|
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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' exist, 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=$2 |
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if test -z "$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" "$reference" || exit |
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( |
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unset GIT_DIR |
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cd "$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 "$1" in |
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-q|--quiet) |
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GIT_QUIET=1 |
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;; |
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--recursive) |
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recursive=1 |
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;; |
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-*) |
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usage |
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;; |
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*) |
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break |
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;; |
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esac |
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shift |
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done |
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module_list | |
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while read mode sha1 stage path |
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do |
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if test -e "$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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unset GIT_DIR |
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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=$(unset GIT_DIR; cd "$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 "$nofetch" |
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then |
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(unset GIT_DIR; cd "$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 $force -q" |
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action="checkout" |
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msg="checked out" |
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;; |
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esac |
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|
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(unset GIT_DIR; cd "$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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|
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if test -n "$recursive" |
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then |
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(unset GIT_DIR; cd "$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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unset GIT_DIR |
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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 |
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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 |
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fi |
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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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test $summary_limit = 0 && return |
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if rev=$(git rev-parse -q --verify "$1^0") |
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then |
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head=$rev |
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shift |
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else |
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head=HEAD |
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fi |
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if [ -n "$files" ] |
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then |
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test -n "$cached" && |
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die "--cached cannot be used with --files" |
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diff_cmd=diff-files |
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head= |
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fi |
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cd_to_toplevel |
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# Get modified modules cared by user |
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modules=$(git $diff_cmd $cached --raw $head -- "$@" | |
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egrep '^:([0-7]* )?160000' | |
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while read mod_src mod_dst sha1_src sha1_dst status name |
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do |
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# Always show modules deleted or type-changed (blob<->module) |
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test $status = D -o $status = T && echo "$name" && continue |
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# Also show added or modified modules which are checked out |
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GIT_DIR="$name/.git" git-rev-parse --git-dir >/dev/null 2>&1 && |
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echo "$name" |
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done |
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) |
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test -z "$modules" && return |
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|
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git $diff_cmd $cached --raw $head -- $modules | |
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egrep '^:([0-7]* )?160000' | |
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cut -c2- | |
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while read mod_src mod_dst sha1_src sha1_dst status name |
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do |
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if test -z "$cached" && |
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test $sha1_dst = 0000000000000000000000000000000000000000 |
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then |
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case "$mod_dst" in |
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160000) |
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sha1_dst=$(GIT_DIR="$name/.git" git rev-parse HEAD) |
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;; |
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100644 | 100755 | 120000) |
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sha1_dst=$(git hash-object $name) |
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;; |
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000000) |
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;; # removed |
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*) |
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# unexpected type |
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echo >&2 "unexpected mode $mod_dst" |
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continue ;; |
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esac |
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fi |
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missing_src= |
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missing_dst= |
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|
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test $mod_src = 160000 && |
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! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_src^0 >/dev/null && |
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missing_src=t |
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|
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test $mod_dst = 160000 && |
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! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_dst^0 >/dev/null && |
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missing_dst=t |
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total_commits= |
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case "$missing_src,$missing_dst" in |
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t,) |
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errmsg=" Warn: $name doesn't contain commit $sha1_src" |
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;; |
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,t) |
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errmsg=" Warn: $name doesn't contain commit $sha1_dst" |
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;; |
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t,t) |
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errmsg=" Warn: $name doesn't contain commits $sha1_src and $sha1_dst" |
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;; |
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*) |
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errmsg= |
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total_commits=$( |
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if test $mod_src = 160000 -a $mod_dst = 160000 |
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then |
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range="$sha1_src...$sha1_dst" |
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elif test $mod_src = 160000 |
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then |
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range=$sha1_src |
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else |
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range=$sha1_dst |
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fi |
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GIT_DIR="$name/.git" \ |
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git log --pretty=oneline --first-parent $range | wc -l |
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) |
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total_commits=" ($(($total_commits + 0)))" |
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;; |
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esac |
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|
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sha1_abbr_src=$(echo $sha1_src | cut -c1-7) |
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sha1_abbr_dst=$(echo $sha1_dst | cut -c1-7) |
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if test $status = T |
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then |
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if test $mod_dst = 160000 |
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then |
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echo "* $name $sha1_abbr_src(blob)->$sha1_abbr_dst(submodule)$total_commits:" |
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else |
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echo "* $name $sha1_abbr_src(submodule)->$sha1_abbr_dst(blob)$total_commits:" |
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fi |
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else |
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echo "* $name $sha1_abbr_src...$sha1_abbr_dst$total_commits:" |
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fi |
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if test -n "$errmsg" |
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then |
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# Don't give error msg for modification whose dst is not submodule |
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# i.e. deleted or changed to blob |
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test $mod_dst = 160000 && echo "$errmsg" |
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else |
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if test $mod_src = 160000 -a $mod_dst = 160000 |
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then |
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limit= |
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test $summary_limit -gt 0 && limit="-$summary_limit" |
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GIT_DIR="$name/.git" \ |
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git log $limit --pretty='format: %m %s' \ |
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--first-parent $sha1_src...$sha1_dst |
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elif test $mod_dst = 160000 |
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then |
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GIT_DIR="$name/.git" \ |
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git log --pretty='format: > %s' -1 $sha1_dst |
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else |
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GIT_DIR="$name/.git" \ |
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git log --pretty='format: < %s' -1 $sha1_src |
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fi |
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echo |
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fi |
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echo |
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done | |
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if test -n "$for_status"; then |
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echo "# Modified submodules:" |
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echo "#" |
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sed -e 's|^|# |' -e 's|^# $|#|' |
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else |
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cat |
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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 "$cached" |
|
then |
|
sha1=$(unset GIT_DIR; 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/" |
|
unset GIT_DIR |
|
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 |
|
( |
|
unset GIT_DIR |
|
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" "$@"
|
|
|