Don't check paper/version.txt into version control

But also don't remove it in `make -C paper clean`

conflict_set.py

@@ -115,7 +115,9 @@ class ConflictSet:
 
     def check(self, *reads: ReadRange) -> list[Result]:
         r = (ctypes.c_int * len(reads))()
-        self._lib.ConflictSet_check(self.p, *reads, r, 1)
+        self._lib.ConflictSet_check(
+            self.p, (ReadRange * len(reads))(*reads), r, len(reads)
+        )
         return [Result(x) for x in r]
 
     def setOldestVersion(self, version: int) -> None:

paper/.gitignore

@@ -10,3 +10,4 @@
 *.pdf
 *.run.xml
 *.synctex.gz
+version.txt

paper/Makefile

@@ -6,4 +6,4 @@ paper.pdf: paper.tex $(wildcard *.tikz)
 	latexmk -pdf
 
 clean:
-	xargs -I '{}' bash -c "rm -f {}" < .gitignore
+	grep -v version.txt .gitignore |xargs -I '{}' bash -c "rm -f {}"

paper/version.txt

@@ -1 +0,0 @@
-\providecommand{\versionnumber}{0.0.6}

test_conflict_set.py

@@ -53,7 +53,7 @@ def test_conflict_set():
         assert cs.getBytes() - before > 0
         assert cs.check(read(0, key)) == [Result.CONFLICT]
         cs.setOldestVersion(1)
-        assert cs.check(read(0, key)) == [Result.TOO_OLD]
+        assert cs.check(read(0, key), read(1, key)) == [Result.TOO_OLD, Result.COMMIT]
 
 
 def test_inner_full_words():