Merge branch 'tl/p4'
[gitweb.git] / git-submodule.sh
index ac371e62536641df62e340d8f2105c9e9505a5a7..3a13397e057edf88d2c810490ec3d7d755be2009 100755 (executable)
@@ -5,7 +5,7 @@
 # Copyright (c) 2007 Lars Hjemli
 
 dashless=$(basename "$0" | sed -e 's/-/ /')
-USAGE="[--quiet] add [-b branch] [--reference <repository>] [--] <repository> [<path>]
+USAGE="[--quiet] add [-b branch] [-f|--force] [--reference <repository>] [--] <repository> [<path>]
    or: $dashless [--quiet] status [--cached] [--recursive] [--] [<path>...]
    or: $dashless [--quiet] init [--] [<path>...]
    or: $dashless [--quiet] update [--init] [-N|--no-fetch] [--rebase] [--reference <repository>] [--merge] [--recursive] [--] [<path>...]
@@ -19,6 +19,7 @@ require_work_tree
 
 command=
 branch=
+force=
 reference=
 cached=
 recursive=
@@ -104,20 +105,6 @@ module_clone()
        url=$2
        reference="$3"
 
-       # If there already is a directory at the submodule path,
-       # expect it to be empty (since that is the default checkout
-       # action) and try to remove it.
-       # Note: if $path is a symlink to a directory the test will
-       # succeed but the rmdir will fail. We might want to fix this.
-       if test -d "$path"
-       then
-               rmdir "$path" 2>/dev/null ||
-               die "Directory '$path' exists, but is neither empty nor a git repository"
-       fi
-
-       test -e "$path" &&
-       die "A file already exist at path '$path'"
-
        if test -n "$reference"
        then
                git-clone "$reference" -n "$url" "$path"
@@ -145,6 +132,9 @@ cmd_add()
                        branch=$2
                        shift
                        ;;
+               -f | --force)
+                       force=$1
+                       ;;
                -q|--quiet)
                        GIT_QUIET=1
                        ;;
@@ -213,6 +203,14 @@ cmd_add()
        git ls-files --error-unmatch "$path" > /dev/null 2>&1 &&
        die "'$path' already exists in the index"
 
+       if test -z "$force" && ! git add --dry-run --ignore-missing "$path" > /dev/null 2>&1
+       then
+               echo >&2 "The following path is ignored by one of your .gitignore files:" &&
+               echo >&2 $path &&
+               echo >&2 "Use -f if you really want to add it."
+               exit 1
+       fi
+
        # perhaps the path exists and is already a git repo, else clone it
        if test -e "$path"
        then
@@ -241,17 +239,17 @@ cmd_add()
                        # ash fails to wordsplit ${branch:+-b "$branch"...}
                        case "$branch" in
                        '') git checkout -f -q ;;
-                       ?*) git checkout -f -q -b "$branch" "origin/$branch" ;;
+                       ?*) git checkout -f -q -B "$branch" "origin/$branch" ;;
                        esac
                ) || die "Unable to checkout submodule '$path'"
        fi
 
-       git add "$path" ||
+       git add $force "$path" ||
        die "Failed to add submodule '$path'"
 
        git config -f .gitmodules submodule."$path".path "$path" &&
        git config -f .gitmodules submodule."$path".url "$repo" &&
-       git add .gitmodules ||
+       git add --force .gitmodules ||
        die "Failed to register submodule '$path'"
 }
 
@@ -283,6 +281,8 @@ cmd_foreach()
                shift
        done
 
+       toplevel=$(pwd)
+
        module_list |
        while read mode sha1 stage path
        do
@@ -372,41 +372,35 @@ cmd_init()
 cmd_update()
 {
        # parse $args after "submodule ... update".
-       orig_args="$@"
+       orig_flags=
        while test $# -ne 0
        do
                case "$1" in
                -q|--quiet)
-                       shift
                        GIT_QUIET=1
                        ;;
                -i|--init)
                        init=1
-                       shift
                        ;;
                -N|--no-fetch)
-                       shift
                        nofetch=1
                        ;;
                -r|--rebase)
-                       shift
                        update="rebase"
                        ;;
                --reference)
                        case "$2" in '') usage ;; esac
                        reference="--reference=$2"
-                       shift 2
+                       orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
+                       shift
                        ;;
                --reference=*)
                        reference="$1"
-                       shift
                        ;;
                -m|--merge)
-                       shift
                        update="merge"
                        ;;
                --recursive)
-                       shift
                        recursive=1
                        ;;
                --)
@@ -420,6 +414,8 @@ cmd_update()
                        break
                        ;;
                esac
+               orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
+               shift
        done
 
        if test -n "$init"
@@ -427,6 +423,7 @@ cmd_update()
                cmd_init "--" "$@" || return
        fi
 
+       cloned_modules=
        module_list "$@" |
        while read mode sha1 stage path
        do
@@ -446,6 +443,7 @@ cmd_update()
                if ! test -d "$path"/.git -o -f "$path"/.git
                then
                        module_clone "$path" "$url" "$reference"|| exit
+                       cloned_modules="$cloned_modules;$name"
                        subsha1=
                else
                        subsha1=$(clear_local_git_env; cd "$path" &&
@@ -473,6 +471,13 @@ cmd_update()
                                die "Unable to fetch in submodule path '$path'"
                        fi
 
+                       # Is this something we just cloned?
+                       case ";$cloned_modules;" in
+                       *";$name;"*)
+                               # then there is no local change to integrate
+                               update_module= ;;
+                       esac
+
                        case "$update_module" in
                        rebase)
                                command="git rebase"
@@ -498,7 +503,7 @@ cmd_update()
 
                if test -n "$recursive"
                then
-                       (clear_local_git_env; cd "$path" && cmd_update $orig_args) ||
+                       (clear_local_git_env; cd "$path" && eval cmd_update "$orig_flags") ||
                        die "Failed to recurse into submodule path '$path'"
                fi
        done
@@ -567,12 +572,17 @@ cmd_summary() {
 
        test $summary_limit = 0 && return
 
-       if rev=$(git rev-parse -q --verify "$1^0")
+       if rev=$(git rev-parse -q --verify --default HEAD ${1+"$1"})
        then
                head=$rev
-               shift
+               test $# = 0 || shift
+       elif test -z "$1" -o "$1" = "HEAD"
+       then
+               # before the first commit: compare with an empty tree
+               head=$(git hash-object -w -t tree --stdin </dev/null)
+               test -z "$1" || shift
        else
-               head=HEAD
+               head="HEAD"
        fi
 
        if [ -n "$files" ]
@@ -585,7 +595,7 @@ cmd_summary() {
 
        cd_to_toplevel
        # Get modified modules cared by user
-       modules=$(git $diff_cmd $cached --raw $head -- "$@" |
+       modules=$(git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- "$@" |
                sane_egrep '^:([0-7]* )?160000' |
                while read mod_src mod_dst sha1_src sha1_dst status name
                do
@@ -599,7 +609,7 @@ cmd_summary() {
 
        test -z "$modules" && return
 
-       git $diff_cmd $cached --raw $head -- $modules |
+       git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- $modules |
        sane_egrep '^:([0-7]* )?160000' |
        cut -c2- |
        while read mod_src mod_dst sha1_src sha1_dst status name
@@ -657,7 +667,7 @@ cmd_summary() {
                                range=$sha1_dst
                        fi
                        GIT_DIR="$name/.git" \
-                       git log --pretty=oneline --first-parent $range | wc -l
+                       git rev-list --first-parent $range -- | wc -l
                        )
                        total_commits=" ($(($total_commits + 0)))"
                        ;;
@@ -726,7 +736,7 @@ cmd_summary() {
 cmd_status()
 {
        # parse $args after "submodule ... status".
-       orig_args="$@"
+       orig_flags=
        while test $# -ne 0
        do
                case "$1" in
@@ -750,6 +760,7 @@ cmd_status()
                        break
                        ;;
                esac
+               orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
                shift
        done
 
@@ -765,7 +776,7 @@ cmd_status()
                        continue;
                fi
                set_name_rev "$path" "$sha1"
-               if git diff-files --quiet -- "$path"
+               if git diff-files --ignore-submodules=dirty --quiet -- "$path"
                then
                        say " $sha1 $displaypath$revname"
                else
@@ -783,7 +794,7 @@ cmd_status()
                                prefix="$displaypath/"
                                clear_local_git_env
                                cd "$path" &&
-                               cmd_status $orig_args
+                               eval cmd_status "$orig_args"
                        ) ||
                        die "Failed to recurse into submodule path '$path'"
                fi
@@ -829,13 +840,15 @@ cmd_sync()
                        ;;
                esac
 
+               say "Synchronizing submodule url for '$name'"
+               git config submodule."$name".url "$url"
+
                if test -e "$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