reset: add test cases for "--keep" option
[gitweb.git] / git-pull.sh
index fc3536bdf1dc3b29b8d5c705891be8d1ae3db068..38331a861106c63bf5f421dbe03f4aafe949812e 100755 (executable)
@@ -13,8 +13,29 @@ set_reflog_action "pull $*"
 require_work_tree
 cd_to_toplevel
 
-test -z "$(git ls-files -u)" ||
-       die "You are in the middle of a conflicted merge."
+
+die_conflict () {
+    git diff-index --cached --name-status -r --ignore-submodules HEAD --
+    if [ $(git config --bool --get advice.resolveConflict || echo true) = "true" ]; then
+       die "Pull is not possible because you have unmerged files.
+Please, fix them up in the work tree, and then use 'git add/rm <file>'
+as appropriate to mark resolution, or use 'git commit -a'."
+    else
+       die "Pull is not possible because you have unmerged files."
+    fi
+}
+
+die_merge () {
+    if [ $(git config --bool --get advice.resolveConflict || echo true) = "true" ]; then
+       die "You have not concluded your merge (MERGE_HEAD exists).
+Please, commit your changes before you can merge."
+    else
+       die "You have not concluded your merge (MERGE_HEAD exists)."
+    fi
+}
+
+test -z "$(git ls-files -u)" || die_conflict
+test -f "$GIT_DIR/MERGE_HEAD" && die_merge
 
 strategy_args= diffstat= no_commit= squash= no_ff= ff_only=
 log_arg= verbosity=
@@ -104,45 +125,63 @@ error_on_no_merge_candidates () {
                esac
        done
 
+       if test true = "$rebase"
+       then
+               op_type=rebase
+               op_prep=against
+       else
+               op_type=merge
+               op_prep=with
+       fi
+
        curr_branch=${curr_branch#refs/heads/}
        upstream=$(git config "branch.$curr_branch.merge")
        remote=$(git config "branch.$curr_branch.remote")
 
        if [ $# -gt 1 ]; then
-               echo "There are no candidates for merging in the refs that you just fetched."
+               if [ "$rebase" = true ]; then
+                       printf "There is no candidate for rebasing against "
+               else
+                       printf "There are no candidates for merging "
+               fi
+               echo "among the refs that you just fetched."
                echo "Generally this means that you provided a wildcard refspec which had no"
                echo "matches on the remote end."
        elif [ $# -gt 0 ] && [ "$1" != "$remote" ]; then
                echo "You asked to pull from the remote '$1', but did not specify"
-               echo "a branch to merge. Because this is not the default configured remote"
+               echo "a branch. Because this is not the default configured remote"
                echo "for your current branch, you must specify a branch on the command line."
        elif [ -z "$curr_branch" ]; then
                echo "You are not currently on a branch, so I cannot use any"
                echo "'branch.<branchname>.merge' in your configuration file."
-               echo "Please specify which branch you want to merge on the command"
+               echo "Please specify which remote branch you want to use on the command"
                echo "line and try again (e.g. 'git pull <repository> <refspec>')."
                echo "See git-pull(1) for details."
        elif [ -z "$upstream" ]; then
                echo "You asked me to pull without telling me which branch you"
-               echo "want to merge with, and 'branch.${curr_branch}.merge' in"
-               echo "your configuration file does not tell me either.  Please"
-               echo "specify which branch you want to merge on the command line and"
+               echo "want to $op_type $op_prep, and 'branch.${curr_branch}.merge' in"
+               echo "your configuration file does not tell me, either. Please"
+               echo "specify which branch you want to use on the command line and"
                echo "try again (e.g. 'git pull <repository> <refspec>')."
                echo "See git-pull(1) for details."
                echo
-               echo "If you often merge with the same branch, you may want to"
-               echo "configure the following variables in your configuration"
-               echo "file:"
+               echo "If you often $op_type $op_prep the same branch, you may want to"
+               echo "use something like the following in your configuration file:"
+               echo
+               echo "    [branch \"${curr_branch}\"]"
+               echo "    remote = <nickname>"
+               echo "    merge = <remote-ref>"
+               test rebase = "$op_type" &&
+                       echo "    rebase = true"
                echo
-               echo "    branch.${curr_branch}.remote = <nickname>"
-               echo "    branch.${curr_branch}.merge = <remote-ref>"
-               echo "    remote.<nickname>.url = <url>"
-               echo "    remote.<nickname>.fetch = <refspec>"
+               echo "    [remote \"<nickname>\"]"
+               echo "    url = <url>"
+               echo "    fetch = <refspec>"
                echo
                echo "See git-config(1) for details."
        else
-               echo "Your configuration specifies to merge the ref '${upstream#refs/heads/}' from the"
-               echo "remote, but no such ref was fetched."
+               echo "Your configuration specifies to $op_type $op_prep the ref '${upstream#refs/heads/}'"
+               echo "from the remote, but no such ref was fetched."
        fi
        exit 1
 }
@@ -236,7 +275,7 @@ true)
 *)
        eval="git-merge $diffstat $no_commit $squash $no_ff $ff_only"
        eval="$eval  $log_arg $strategy_args $merge_args"
-       eval="$eval \"$merge_name\" HEAD $merge_head $verbosity"
+       eval="$eval \"\$merge_name\" HEAD $merge_head $verbosity"
        ;;
 esac
 eval "exec $eval"