]> asedeno.scripts.mit.edu Git - git.git/blobdiff - git-submodule.sh
Merge branch 'mg/maint-remote-fix' into maint
[git.git] / git-submodule.sh
index 7171cb60ab4e6a49b84500bde43c04ea40501d6c..5888735e4f2dac852f43c31195f430a1a6d23446 100755 (executable)
@@ -4,7 +4,9 @@
 #
 # Copyright (c) 2007 Lars Hjemli
 
-USAGE='[--quiet] [--cached] [add <repo> [-b branch]|status|init|update] [--] [<path>...]'
+USAGE="[--quiet] [--cached] \
+[add <repo> [-b branch] <path>]|[status|init|update [-i|--init]|summary [-n|--summary-limit <n>] [<commit>]] \
+[--] [<path>...]"
 OPTIONS_SPEC=
 . git-sh-setup
 require_work_tree
@@ -25,26 +27,14 @@ say()
        fi
 }
 
-# NEEDSWORK: identical function exists in get_repo_base in clone.sh
-get_repo_base() {
-       (
-               cd "`/bin/pwd`" &&
-               cd "$1" || cd "$1.git" &&
-               {
-                       cd .git
-                       pwd
-               }
-       ) 2>/dev/null
-}
-
 # Resolve relative url by appending to parent's url
 resolve_relative_url ()
 {
        branch="$(git symbolic-ref HEAD 2>/dev/null)"
        remote="$(git config branch.${branch#refs/heads/}.remote)"
        remote="${remote:-origin}"
-       remoteurl="$(git config remote.$remote.url)" ||
-               die "remote ($remote) does not have a url in .git/config"
+       remoteurl=$(git config "remote.$remote.url") ||
+               die "remote ($remote) does not have a url defined in .git/config"
        url="$1"
        while test -n "$url"
        do
@@ -71,9 +61,8 @@ resolve_relative_url ()
 module_name()
 {
        # Do we have "submodule.<something>.path = $1" defined in .gitmodules file?
-       re=$(printf '%s' "$1" | sed -e 's/[].[^$\\*]/\\&/g')
-       name=$( GIT_CONFIG=.gitmodules \
-               git config --get-regexp '^submodule\..*\.path$' |
+       re=$(printf '%s\n' "$1" | sed -e 's/[].[^$\\*]/\\&/g')
+       name=$( git config -f .gitmodules --get-regexp '^submodule\..*\.path$' |
                sed -n -e 's|^submodule\.\(.*\)\.path '"$re"'$|\1|p' )
        test -z "$name" &&
        die "No submodule mapping found in .gitmodules for path '$path'"
@@ -114,7 +103,7 @@ module_clone()
 #
 # Add a new submodule to the working tree, .gitmodules and the index
 #
-# $@ = repo [path]
+# $@ = repo path
 #
 # optional branch is stored in global branch variable
 #
@@ -149,16 +138,27 @@ cmd_add()
        repo=$1
        path=$2
 
-       if test -z "$repo"; then
+       if test -z "$repo" -o -z "$path"; then
                usage
        fi
 
-       # Guess path from repo if not specified or strip trailing slashes
-       if test -z "$path"; then
-               path=$(echo "$repo" | sed -e 's|/*$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
-       else
-               path=$(echo "$path" | sed -e 's|/*$||')
-       fi
+       # assure repo is absolute or relative to parent
+       case "$repo" in
+       ./*|../*)
+               # dereference source url relative to parent's url
+               realrepo=$(resolve_relative_url "$repo") || exit
+               ;;
+       *:*|/*)
+               # absolute url
+               realrepo=$repo
+               ;;
+       *)
+               die "repo URL: '$repo' must be absolute or begin with ./|../"
+       ;;
+       esac
+
+       # strip trailing slashes from path
+       path=$(echo "$path" | sed -e 's|/*$||')
 
        git ls-files --error-unmatch "$path" > /dev/null 2>&1 &&
        die "'$path' already exists in the index"
@@ -166,38 +166,34 @@ cmd_add()
        # perhaps the path exists and is already a git repo, else clone it
        if test -e "$path"
        then
-               if test -d "$path/.git" &&
-               test "$(unset GIT_DIR; cd $path; git rev-parse --git-dir)" = ".git"
+               if test -d "$path"/.git -o -f "$path"/.git
                then
                        echo "Adding existing repo at '$path' to the index"
                else
                        die "'$path' already exists and is not a valid git repo"
                fi
-       else
+
                case "$repo" in
                ./*|../*)
-                       # dereference source url relative to parent's url
-                       realrepo="$(resolve_relative_url $repo)" ;;
+                       url=$(resolve_relative_url "$repo") || exit
+                   ;;
                *)
-                       # Turn the source into an absolute path if
-                       # it is local
-                       if base=$(get_repo_base "$repo"); then
-                               repo="$base"
-                       fi
-                       realrepo=$repo
+                       url="$repo"
                        ;;
                esac
+               git config submodule."$path".url "$url"
+       else
 
                module_clone "$path" "$realrepo" || exit
-               (unset GIT_DIR; cd "$path" && git checkout -q ${branch:+-b "$branch" "origin/$branch"}) ||
+               (unset GIT_DIR; cd "$path" && git checkout -f -q ${branch:+-b "$branch" "origin/$branch"}) ||
                die "Unable to checkout submodule '$path'"
        fi
 
        git add "$path" ||
        die "Failed to add submodule '$path'"
 
-       GIT_CONFIG=.gitmodules git config submodule."$path".path "$path" &&
-       GIT_CONFIG=.gitmodules git config submodule."$path".url "$repo" &&
+       git config -f .gitmodules submodule."$path".path "$path" &&
+       git config -f .gitmodules submodule."$path".url "$repo" &&
        git add .gitmodules ||
        die "Failed to register submodule '$path'"
 }
@@ -230,7 +226,7 @@ cmd_init()
                shift
        done
 
-       git ls-files --stage -- "$@" | grep -e '^160000 ' |
+       git ls-files --stage -- "$@" | grep '^160000 ' |
        while read mode sha1 stage path
        do
                # Skip already registered paths
@@ -238,14 +234,14 @@ cmd_init()
                url=$(git config submodule."$name".url)
                test -z "$url" || continue
 
-               url=$(GIT_CONFIG=.gitmodules git config submodule."$name".url)
+               url=$(git config -f .gitmodules submodule."$name".url)
                test -z "$url" &&
                die "No url found for submodule path '$path' in .gitmodules"
 
                # Possibly a url relative to parent
                case "$url" in
                ./*|../*)
-                       url="$(resolve_relative_url "$url")"
+                       url=$(resolve_relative_url "$url") || exit
                        ;;
                esac
 
@@ -268,8 +264,13 @@ cmd_update()
        do
                case "$1" in
                -q|--quiet)
+                       shift
                        quiet=1
                        ;;
+               -i|--init)
+                       shift
+                       cmd_init "$@" || return
+                       ;;
                --)
                        shift
                        break
@@ -281,10 +282,9 @@ cmd_update()
                        break
                        ;;
                esac
-               shift
        done
 
-       git ls-files --stage -- "$@" | grep -e '^160000 ' |
+       git ls-files --stage -- "$@" | grep '^160000 ' |
        while read mode sha1 stage path
        do
                name=$(module_name "$path") || exit
@@ -295,10 +295,11 @@ cmd_update()
                        # path have been specified
                        test "$#" != "0" &&
                        say "Submodule path '$path' not initialized"
+                       say "Maybe you want to use 'update --init'?"
                        continue
                fi
 
-               if ! test -d "$path"/.git
+               if ! test -d "$path"/.git -o -f "$path"/.git
                then
                        module_clone "$path" "$url" || exit
                        subsha1=
@@ -310,8 +311,13 @@ cmd_update()
 
                if test "$subsha1" != "$sha1"
                then
+                       force=
+                       if test -z "$subsha1"
+                       then
+                               force="-f"
+                       fi
                        (unset GIT_DIR; cd "$path" && git-fetch &&
-                               git-checkout -q "$sha1") ||
+                               git-checkout $force -q "$sha1") ||
                        die "Unable to checkout '$sha1' in submodule path '$path'"
 
                        say "Submodule path '$path': checked out '$sha1'"
@@ -325,12 +331,193 @@ set_name_rev () {
                cd "$1" && {
                        git describe "$2" 2>/dev/null ||
                        git describe --tags "$2" 2>/dev/null ||
-                       git describe --contains --tags "$2"
+                       git describe --contains "$2" 2>/dev/null ||
+                       git describe --all --always "$2"
                }
        ) )
        test -z "$revname" || revname=" ($revname)"
 }
+#
+# Show commit summary for submodules in index or working tree
+#
+# If '--cached' is given, show summary between index and given commit,
+# or between working tree and given commit
+#
+# $@ = [commit (default 'HEAD'),] requested paths (default all)
+#
+cmd_summary() {
+       summary_limit=-1
+       for_status=
+
+       # parse $args after "submodule ... summary".
+       while test $# -ne 0
+       do
+               case "$1" in
+               --cached)
+                       cached="$1"
+                       ;;
+               --for-status)
+                       for_status="$1"
+                       ;;
+               -n|--summary-limit)
+                       if summary_limit=$(($2 + 0)) 2>/dev/null && test "$summary_limit" = "$2"
+                       then
+                               :
+                       else
+                               usage
+                       fi
+                       shift
+                       ;;
+               --)
+                       shift
+                       break
+                       ;;
+               -*)
+                       usage
+                       ;;
+               *)
+                       break
+                       ;;
+               esac
+               shift
+       done
+
+       test $summary_limit = 0 && return
+
+       if rev=$(git rev-parse --verify "$1^0" 2>/dev/null)
+       then
+               head=$rev
+               shift
+       else
+               head=HEAD
+       fi
+
+       cd_to_toplevel
+       # Get modified modules cared by user
+       modules=$(git diff-index $cached --raw $head -- "$@" |
+               grep -e '^:160000' -e '^:[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-index $cached --raw $head -- $modules |
+       grep -e '^:160000' -e '^:[0-7]* 160000' |
+       cut -c2- |
+       while read mod_src mod_dst sha1_src sha1_dst status name
+       do
+               if test -z "$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 --verify $sha1_src^0 >/dev/null 2>&1 &&
+               missing_src=t
+
+               test $mod_dst = 160000 &&
+               ! GIT_DIR="$name/.git" git-rev-parse --verify $sha1_dst^0 >/dev/null 2>&1 &&
+               missing_dst=t
+
+               total_commits=
+               case "$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 log --pretty=oneline --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
+               echo "# Modified submodules:"
+               echo "#"
+               sed -e 's|^|# |' -e 's|^# $|#|'
+       else
+               cat
+       fi
+}
 #
 # List all submodules, prefixed with:
 #  - submodule not initialized
@@ -367,12 +554,12 @@ cmd_status()
                shift
        done
 
-       git ls-files --stage -- "$@" | grep -e '^160000 ' |
+       git ls-files --stage -- "$@" | grep '^160000 ' |
        while read mode sha1 stage path
        do
                name=$(module_name "$path") || exit
                url=$(git config submodule."$name".url)
-               if test -z "$url" || ! test -d "$path"/.git
+               if test -z "$url" || ! test -d "$path"/.git -o -f "$path"/.git
                then
                        say "-$sha1 $path"
                        continue;
@@ -401,7 +588,7 @@ cmd_status()
 while test $# != 0 && test -z "$command"
 do
        case "$1" in
-       add | init | update | status)
+       add | init | update | status | summary)
                command=$1
                ;;
        -q|--quiet)
@@ -416,7 +603,7 @@ do
                branch="$2"; shift
                ;;
        --cached)
-               cached=1
+               cached="$1"
                ;;
        --)
                break
@@ -440,8 +627,8 @@ then
        usage
 fi
 
-# "--cached" is accepted only by "status"
-if test -n "$cached" && test "$command" != status
+# "--cached" is accepted only by "status" and "summary"
+if test -n "$cached" && test "$command" != status -a "$command" != summary
 then
        usage
 fi