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147 def _computeforwardmissing(a, b): |
147 def _computeforwardmissing(a, b): |
148 """Computes which files are in b but not a. |
148 """Computes which files are in b but not a. |
149 This is its own function so extensions can easily wrap this call to see what |
149 This is its own function so extensions can easily wrap this call to see what |
150 files _forwardcopies is about to process. |
150 files _forwardcopies is about to process. |
151 """ |
151 """ |
152 missing = set(b.manifest().iterkeys()) |
152 return b.manifest().filesnotin(a.manifest()) |
153 missing.difference_update(a.manifest().iterkeys()) |
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154 return missing |
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155 |
153 |
156 def _forwardcopies(a, b): |
154 def _forwardcopies(a, b): |
157 '''find {dst@b: src@a} copy mapping where a is an ancestor of b''' |
155 '''find {dst@b: src@a} copy mapping where a is an ancestor of b''' |
158 |
156 |
159 # check for working copy |
157 # check for working copy |