read-tree: shadowed variable fix.
[gitweb.git] / git-pull.sh
index 3a139849fbfc545b7c479dd2889a0285fab646d5..f380437997f053d15a177a941f3b8a1543c56a18 100755 (executable)
@@ -4,20 +4,11 @@
 #
 # Fetch one or more remote refs and merge it/them into the current HEAD.
 
+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
 
-usage () {
-    echo >&2 "usage: $0"' [-n] [--no-commit] [--no-summary] [--help]
-    [-s strategy]...
-    [<fetch-options>]
-    <repo> <head>...
-
-Fetch one or more remote refs and merge it/them into the current HEAD.
-'
-    exit 1
-}
-
-strategy_args= no_summary= no_commit=
+strategy_args= no_summary= no_commit= squash=
 while case "$#,$1" in 0) break ;; *,-*) ;; *) break ;; esac
 do
        case "$1" in
@@ -26,12 +17,14 @@ do
                no_summary=-n ;;
        --no-c|--no-co|--no-com|--no-comm|--no-commi|--no-commit)
                no_commit=--no-commit ;;
+       --sq|--squ|--squa|--squas|--squash)
+               squash=--squash ;;
        -s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\
                --strateg=*|--strategy=*|\
        -s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy)
                case "$#,$1" in
                *,*=*)
-                       strategy=`expr "$1" : '-[^=]*=\(.*\)'` ;;
+                       strategy=`expr "z$1" : 'z-[^=]*=\(.*\)'` ;;
                1,*)
                        usage ;;
                *)
@@ -52,7 +45,7 @@ do
 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"
@@ -64,9 +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=$(sed -e '/ not-for-merge   /d' \
@@ -79,21 +80,17 @@ case "$merge_head" in
        exit 0
        ;;
 ?*' '?*)
-       var=`git-var -l | sed -ne 's/^pull\.octopus=/-s /p'`
-       if test '' = "$var"
+       var=`git-repo-config --get pull.octopus`
+       if test -n "$var"
        then
-               strategy_default_args='-s octopus'
-       else
-               strategy_default_args=$var
+               strategy_default_args="-s $var"
        fi
        ;;
 *)
-       var=`git-var -l | sed -ne 's/^pull\.twohead=/-s /p'`
-       if test '' = "$var"
-       then
-               strategy_default_args='-s recursive'
-       else
-               strategy_default_args=$var
+       var=`git-repo-config --get pull.twohead`
+       if test -n "$var"
+        then
+               strategy_default_args="-s $var"
        fi
        ;;
 esac
@@ -104,5 +101,7 @@ case "$strategy_args" in
        ;;
 esac
 
-merge_name=$(git-fmt-merge-msg <"$GIT_DIR/FETCH_HEAD")
-git-merge $no_summary $no_commit $strategy_args "$merge_name" HEAD $merge_head
+merge_name=$(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