read-tree: shadowed variable fix.
[gitweb.git] / git-pull.sh
index 1f4a05d09eed7a7ae6be9ce4dcdd92f4e0d75131..f380437997f053d15a177a941f3b8a1543c56a18 100755 (executable)
@@ -4,10 +4,48 @@
 #
 # Fetch one or more remote refs and merge it/them into the current HEAD.
 
-. git-sh-setup || die "Not a git archive"
+USAGE='[-n | --no-summary] [--no-commit] [-s strategy]... [<fetch-options>] <repo> <head>...'
+LONG_USAGE='Fetch one or more remote refs and merge it/them into the current HEAD.'
+. git-sh-setup
+
+strategy_args= no_summary= no_commit= squash=
+while case "$#,$1" in 0) break ;; *,-*) ;; *) break ;; esac
+do
+       case "$1" in
+       -n|--n|--no|--no-|--no-s|--no-su|--no-sum|--no-summ|\
+               --no-summa|--no-summar|--no-summary)
+               no_summary=-n ;;
+       --no-c|--no-co|--no-com|--no-comm|--no-commi|--no-commit)
+               no_commit=--no-commit ;;
+       --sq|--squ|--squa|--squas|--squash)
+               squash=--squash ;;
+       -s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\
+               --strateg=*|--strategy=*|\
+       -s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy)
+               case "$#,$1" in
+               *,*=*)
+                       strategy=`expr "z$1" : 'z-[^=]*=\(.*\)'` ;;
+               1,*)
+                       usage ;;
+               *)
+                       strategy="$2"
+                       shift ;;
+               esac
+               strategy_args="${strategy_args}-s $strategy "
+               ;;
+       -h|--h|--he|--hel|--help)
+               usage
+               ;;
+       -*)
+               # Pass thru anything that is meant for fetch.
+               break
+               ;;
+       esac
+       shift
+done
 
 orig_head=$(git-rev-parse --verify HEAD) || die "Pulling into a black hole?"
-git-fetch --update-head-ok "$@" || exit 1
+git-fetch --update-head-ok --reflog-action=pull "$@" || exit 1
 
 curr_head=$(git-rev-parse --verify HEAD)
 if test "$curr_head" != "$orig_head"
@@ -19,9 +57,17 @@ then
        # First update the working tree to match $curr_head.
 
        echo >&2 "Warning: fetch updated the current branch head."
-       echo >&2 "Warning: fast forwarding your working tree."
+       echo >&2 "Warning: fast forwarding your working tree from"
+       echo >&2 "Warning: $orig_head commit."
+       git-update-index --refresh 2>/dev/null
        git-read-tree -u -m "$orig_head" "$curr_head" ||
-               die "You need to first update your working tree."
+               die 'Cannot fast-forward your working tree.
+After making sure that you saved anything precious from
+$ git diff '$orig_head'
+output, run
+$ git reset --hard
+to recover.'
+
 fi
 
 merge_head=$(sed -e '/ not-for-merge   /d' \
@@ -33,11 +79,29 @@ case "$merge_head" in
        echo >&2 "No changes."
        exit 0
        ;;
-*' '?*)
-       echo >&2 "Pulling more than one heads; making an Octopus."
-       exec git-octopus
+?*' '?*)
+       var=`git-repo-config --get pull.octopus`
+       if test -n "$var"
+       then
+               strategy_default_args="-s $var"
+       fi
+       ;;
+*)
+       var=`git-repo-config --get pull.twohead`
+       if test -n "$var"
+        then
+               strategy_default_args="-s $var"
+       fi
+       ;;
+esac
+
+case "$strategy_args" in
+'')
+       strategy_args=$strategy_default_args
        ;;
 esac
 
-merge_name=$(git-fmt-merge-msg <"$GIT_DIR/FETCH_HEAD")
-git-resolve "$curr_head" $merge_head "$merge_name"
+merge_name=$(git-fmt-merge-msg <"$GIT_DIR/FETCH_HEAD") || exit
+git-merge "--reflog-action=pull $*" \
+       $no_summary $no_commit $squash $strategy_args \
+       "$merge_name" HEAD $merge_head