Rename flush-cache.py to flush-cache, and rearrange the code a bit.

It was working fine, but the style wasn't exactly the way I like it, because
I'm unnecessarily picky. :)

Also, removed the file extension since we should probably learn from the
fact that it's already been rewritten once from one language to another.
Who knows, maybe it will be again someday.

t/alwaystest.do

@@ -5,21 +5,22 @@ redo t/always1
 cd t
 [ "$(wc -l <always1.log)" -eq 1 ] || exit 11
 
-# This shouldn't rebuild, but because other people might be running flush-cache.py
-# in parallel with us, we can't be 100% sure it won't.  So don't test it.
+# This shouldn't rebuild, but because other people might be running
+# flush-cache in parallel with us, we can't be 100% sure it won't.  So don't
+# test it.
 #redo-ifchange always1
 #[ "$(wc -l <always1.log)" -eq 1 ] || exit 21
 
-./flush-cache.py
+./flush-cache
 redo-ifchange always1
 . ./skip-if-minimal-do.sh
 [ "$(wc -l <always1.log)" -eq 2 ] || exit 31
 
-./flush-cache.py
+./flush-cache
 redo-ifchange always1
 [ "$(wc -l <always1.log)" -eq 3 ] || exit 41
 
 cd ..
-./t/flush-cache.py
+./t/flush-cache
 redo-ifchange t/always1
 [ "$(wc -l <t/always1.log)" -eq 4 ] || exit 51

t/chdirtest.do

@@ -4,15 +4,15 @@ rm -f chdir1
 redo chdir2
 redo chdir3
 
-./flush-cache.py
+./flush-cache
 redo-ifchange chdir3
 
 rm -f chdir1
-./flush-cache.py
+./flush-cache
 redo-ifchange chdir3
 [ -e chdir1 ] || exit 77
 
 rm -f chdir1
-./flush-cache.py
+./flush-cache
 redo-ifchange chdir3
 [ -e chdir1 ] || exit 78

t/deps/basic/test.do

@@ -1,10 +1,10 @@
 rm -f *.out *.log
 
-../../flush-cache.py
+../../flush-cache
 redo-ifchange 1.out 2.out
 [ "$(cat 1.log | wc -l)" -eq 1 ] || exit 55
 [ "$(cat 2.log | wc -l)" -eq 1 ] || exit 56
-../../flush-cache.py
+../../flush-cache
 touch 1.in
 redo-ifchange 1.out 2.out
 [ "$(cat 2.log | wc -l)" -eq 1 ] || exit 58

t/deps/dirtest/test.do

@@ -1,11 +1,11 @@
 rm -f log dir1/log dir1/stinky
 touch t1.do
-../../flush-cache.py
+../../flush-cache
 redo t1
 touch t1.do
-../../flush-cache.py
+../../flush-cache
 redo t1
-../../flush-cache.py
+../../flush-cache
 redo-ifchange t1
 C1="$(wc -l <dir1/log)"
 C2="$(wc -l <log)"

t/deps/doublestatic.do

@@ -3,7 +3,7 @@ rm -f static.log
 redo static1 static2
 
 touch static.in
-../flush-cache.py
+../flush-cache
 redo-ifchange static1 static2
 
 COUNT=$(wc -l <static.log)

t/deps/gentest.do

@@ -1,19 +1,19 @@
 rm -f genfile2 genfile2.do genfile.log
 
 echo echo hello >genfile2.do
-../flush-cache.py
+../flush-cache
 redo genfile1
 
 # this will cause a rebuild:
 #      genfile1 depends on genfile2 depends on genfile2.do
 rm -f genfile2.do
-../flush-cache.py
+../flush-cache
 redo-ifchange genfile1
 
 # but genfile2.do was gone last time, so genfile2 no longer depends on it.
 # thus, it can be considered up-to-date.  Prior versions of redo had a bug
 # where the dependency on genfile2.do was never dropped.
-../flush-cache.py
+../flush-cache
 redo-ifchange genfile1
 
 COUNT=$(wc -l <genfile.log)

t/deps/test1.do

@@ -6,7 +6,7 @@ if [ -e t1a ]; then
 else
 	BEFORE=
 fi
-../flush-cache.py
+../flush-cache
 redo-ifchange t1a  # it definitely had to rebuild because t1dep changed
 AFTER="$(cat t1a)"
 if [ "$BEFORE" = "$AFTER" ]; then

t/flush-cache

@@ -0,0 +1,16 @@
+#!/usr/bin/env python
+import sys, os, sqlite3
+
+if "DO_BUILT" in os.environ:
+    sys.exit(0)
+
+sys.stderr.write("Flushing redo cache...\n")
+
+db_file = os.path.join(os.environ["REDO_BASE"], ".redo/db.sqlite3")
+db = sqlite3.connect(db_file, timeout=5000)
+
+db.executescript("pragma synchronous = off;"
+                 "update Files set checked_runid=checked_runid-1, "
+                 "                 changed_runid=changed_runid-1, "
+                 "                 failed_runid=failed_runid-1;")
+db.commit()

t/flush-cache.py

@@ -1,21 +0,0 @@
-#!/usr/bin/env python
-
-import os, os.path, sqlite3, sys
-
-if "DO_BUILT" in os.environ:
-    sys.exit(0)
-
-print >>sys.stderr, "Flushing redo cache..."
-
-db_file = os.path.join(os.environ["REDO_BASE"], ".redo", "db.sqlite3")
-db_con = sqlite3.connect(db_file, timeout=5000)
-
-db_con.executescript("pragma synchronous = off;"
-                     "update Files set checked_runid=checked_runid-1, "
-                     "       changed_runid=changed_runid-1, "
-                     "       failed_runid=failed_runid-1;")
-
-db_con.commit()
-
-db_con.close()
-

t/ifcreate-test.do

@@ -10,11 +10,11 @@ for d in 1 2; do
 	[ "$(wc -l <ifcreate$d.log)" -eq 1 ] || exit ${d}1
 	redo-ifchange ifcreate$d
 	[ "$(wc -l <ifcreate$d.log)" -eq 1 ] || exit ${d}2
-	./flush-cache.py
+	./flush-cache
 	touch ifcreate$d.dep
 	redo-ifchange ifcreate$d
 	[ "$(wc -l <ifcreate$d.log)" -eq 2 ] || exit ${d}3
-	./flush-cache.py
+	./flush-cache
 	rm ifcreate$d.dep
 	redo-ifchange ifcreate$d
 	[ "$(wc -l <ifcreate$d.log)" -eq 3 ] || exit ${d}4

t/makedir2.do

@@ -2,7 +2,7 @@
 rm -f makedir.log
 redo makedir
 touch makedir/outfile
-./flush-cache.py
+./flush-cache
 redo-ifchange makedir
 COUNT=$(wc -l <makedir.log)
 [ "$COUNT" -eq 1 ] || exit 99

t/stamp/stamptest.do

@@ -1,32 +1,32 @@
 rm -f stampy usestamp usestamp2 stampy.log usestamp.log usestamp2.log
 echo one >inp
 
-../flush-cache.py
+../flush-cache
 redo stampy
 [ "$(wc -l <stampy.log)" -eq 1 ] || exit 11
 
 # stampy already exists, so we won't generate it a second time, even though
 # usestamp depends on it.
-../flush-cache.py
+../flush-cache
 redo-ifchange usestamp
 [ "$(wc -l <stampy.log)" -eq 1 ] || exit 21
 [ "$(wc -l <usestamp.log)" -eq 1 ] || exit 12
 
-../flush-cache.py
+../flush-cache
 redo stampy
 . ../skip-if-minimal-do.sh
 [ "$(wc -l <stampy.log)" -eq 2 ] || exit 31
 [ "$(wc -l <usestamp.log)" -eq 1 ] || exit 32
 
 # same as above: stampy is already up-to-date, so it won't be redone.
-../flush-cache.py
+../flush-cache
 redo-ifchange usestamp
 [ "$(wc -l <stampy.log)" -eq 2 ] || exit 41
 [ "$(wc -l <usestamp.log)" -eq 1 ] || exit 42
 
 # stampy depends on bob, so we'll have to rebuild stampy automatically.  But
 # stampy's checksum will still be identical.
-../flush-cache.py
+../flush-cache
 redo bob
 redo-ifchange usestamp
 [ "$(wc -l <stampy.log)" -eq 3 ] || exit 43
@@ -34,13 +34,13 @@ redo-ifchange usestamp
 
 # Make sure the previous step correctly marked stampy and usestamp as up-to-date
 # even though *neither* of them is newer than bob.
-../flush-cache.py
+../flush-cache
 redo-ifchange usestamp
 [ "$(wc -l <stampy.log)" -eq 3 ] || exit 45
 [ "$(wc -l <usestamp.log)" -eq 1 ] || exit 46
 
 # now we're changing the contents of stampy.
-../flush-cache.py
+../flush-cache
 echo two >inp
 redo stampy
 [ "$(wc -l <stampy.log)" -eq 4 ] || exit 51
@@ -53,7 +53,7 @@ redo-ifchange usestamp usestamp2
 
 # when we delete the file and it gets regenerated identically, it's as good as
 # never having been deleted.  So usestamp won't need to change.
-../flush-cache.py
+../flush-cache
 rm -f stampy
 redo-ifchange usestamp usestamp2
 [ "$(wc -l <stampy.log)" -eq 5 ] || exit 71
@@ -61,7 +61,7 @@ redo-ifchange usestamp usestamp2
 [ "$(wc -l <usestamp2.log)" -eq 1 ] || exit 73
 
 # this simple test used to cause a deadlock.
-../flush-cache.py
+../flush-cache
 rm -f stampy
 redo-ifchange stampy
 [ "$(wc -l <stampy.log)" -eq 6 ] || exit 74