do not overwrite files marked "assume unchanged"

[git.git] / git-pull.sh

diff --git a/git-pull.sh b/git-pull.sh
index 2530f21861594bc47dce852cac9a286b7767f395..246a3a4b373dba87877204c90c9f808dfa93c45c 100755 (executable)
--- a/git-pull.sh
+++ b/git-pull.sh
@@ -13,12 +13,35 @@ 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."
 
-strategy_args= diffstat= no_commit= squash= no_ff= log_arg= verbosity=
+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 "$GIT_DIR/MERGE_HEAD" && die_merge
+
+strategy_args= diffstat= no_commit= squash= no_ff= ff_only=
+log_arg= verbosity=
+merge_args=
 curr_branch=$(git symbolic-ref -q HEAD)
-curr_branch_short=$(echo "$curr_branch" | sed "s|refs/heads/||")
+curr_branch_short="${curr_branch#refs/heads/}"
 rebase=$(git config --bool branch.$curr_branch_short.rebase)
 while :
 do
@@ -45,6 +68,8 @@ do
                no_ff=--ff ;;
        --no-ff)
                no_ff=--no-ff ;;
+       --ff-only)
+               ff_only=--ff-only ;;
        -s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\
                --strateg=*|--strategy=*|\
        -s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy)
@@ -59,6 +84,18 @@ do
                esac
                strategy_args="${strategy_args}-s $strategy "
                ;;
+       -X*)
+               case "$#,$1" in
+               1,-X)
+                       usage ;;
+               *,-X)
+                       xx="-X $(git rev-parse --sq-quote "$2")"
+                       shift ;;
+               *,*)
+                       xx=$(git rev-parse --sq-quote "$1") ;;
+               esac
+               merge_args="$merge_args$xx "
+               ;;
        -r|--r|--re|--reb|--reba|--rebas|--rebase)
                rebase=true
                ;;
@@ -189,7 +226,7 @@ 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 from"
+       echo >&2 "Warning: fast-forwarding your working tree from"
        echo >&2 "Warning: commit $orig_head."
        git update-index -q --refresh
        git read-tree -u -m "$orig_head" "$curr_head" ||
@@ -230,8 +267,15 @@ then
 fi
 
 merge_name=$(git fmt-merge-msg $log_arg <"$GIT_DIR/FETCH_HEAD") || exit
-test true = "$rebase" &&
-       exec git-rebase $diffstat $strategy_args --onto $merge_head \
-       ${oldremoteref:-$merge_head}
-exec git-merge $diffstat $no_commit $squash $no_ff $log_arg $strategy_args \
-       "$merge_name" HEAD $merge_head $verbosity
+case "$rebase" in
+true)
+       eval="git-rebase $diffstat $strategy_args $merge_args"
+       eval="$eval --onto $merge_head ${oldremoteref:-$merge_head}"
+       ;;
+*)
+       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"
+       ;;
+esac
+eval "exec $eval"