Skip files that are "deleted by us"

Author: nobu

tool/sync_default_gems.rb

@@ -83,6 +83,10 @@ def pipe_readlines(args, rs: "\0", chomp: true)
     end
   end
 
+  def porcelain_status(*pattern)
+    pipe_readlines(%W"git status --porcelain -z --" + pattern)
+  end
+
   def replace_rdoc_ref(file)
     src = File.binread(file)
     changed = false
@@ -101,7 +105,7 @@ def replace_rdoc_ref(file)
   end
 
   def replace_rdoc_ref_all
-    result = pipe_readlines(%W"git status --porcelain -z -- *.c *.rb *.rdoc")
+    result = porcelain_status("*.c", "*.rb", "*.rdoc")
     result.map! {|line| line[/\A.M (.*)/, 1]}
     result.compact!
     return if result.empty?
@@ -489,14 +493,16 @@ def commits_in_ranges(gem, repo, default_branch, ranges)
 
   def resolve_conflicts(gem, sha, edit)
     # Skip this commit if everything has been removed as `ignored_paths`.
-    changes = pipe_readlines(%W"git status --porcelain -z")
+    changes = porcelain_status()
     if changes.empty?
       puts "Skip empty commit #{sha}"
       return false
     end
 
-    # We want to skip DD: deleted by both.
-    deleted = changes.grep(/^DD /) {$'}
+    # We want to skip
+    # DD: deleted by both
+    # DU: deleted by us
+    deleted = changes.grep(/^D[DU] /) {$'}
     system(*%W"git rm -f --", *deleted) unless deleted.empty?
 
     # Import UA: added by them
@@ -505,10 +511,9 @@ def resolve_conflicts(gem, sha, edit)
 
     # Discover unmerged files
     # AU: unmerged, added by us
-    # DU: unmerged, deleted by us
     # UU: unmerged, both modified
     # AA: unmerged, both added
-    conflict = changes.grep(/\A(?:.U|AA) /) {$'}
+    conflict = changes.grep(/\A(?:A[AU]|UU) /) {$'}
     # If -e option is given, open each conflicted file with an editor
     unless conflict.empty?
       if edit
@@ -624,6 +629,8 @@ def pickup_commit(gem, sha, edit)
     # Commit cherry-picked commit
     if picked
       system(*%w"git commit --amend --no-edit")
+    elsif porcelain_status().empty?
+      system(*%w"git cherry-pick --skip")
     else
       system(*%w"git cherry-pick --continue --no-edit")
     end or return nil