Add a redo-always command: it adds an "always dirty" dependency to your target.

This is mostly useless except when combined with redo-stamp... I think.

redo-always

@@ -0,0 +1 @@
+redo-always.py

redo-always.py

@@ -0,0 +1,16 @@
+#!/usr/bin/python
+import sys, os
+import vars, state
+from helpers import err
+
+
+try:
+    me = state.File(name=vars.TARGET)
+    me.add_dep('m', state.ALWAYS)
+    always = state.File(name=state.ALWAYS)
+    always.stamp = state.STAMP_MISSING
+    always.set_changed()
+    always.save()
+    state.commit()
+except KeyboardInterrupt:
+    sys.exit(200)

redo-ifchange.py

@@ -28,6 +28,7 @@ def dirty_deps(f, depth, max_changed):
     if not f.stamp:
         debug('%s-- DIRTY (no stamp)\n' % depth)
         return DIRTY
+
     newstamp = f.read_stamp()
     if f.stamp != newstamp:
         if newstamp == state.STAMP_MISSING:

state.py

@@ -153,7 +153,7 @@ class File(object):
             q += 'where rowid=?'
             l = [id]
         elif name != None:
-            name = relpath(name, vars.BASE)
+            name = (name==ALWAYS) and ALWAYS or relpath(name, vars.BASE)
             q += 'where name=?'
             l = [name]
         else:
@@ -178,6 +178,8 @@ class File(object):
         (self.id, self.name, self.is_generated, self.is_override,
          self.checked_runid, self.changed_runid, self.failed_runid,
          self.stamp, self.csum) = cols
+        if self.name == ALWAYS and self.changed_runid < vars.RUNID:
+            self.changed_runid = vars.RUNID
     
     def __init__(self, id=None, name=None, cols=None):
         if cols:
@@ -259,9 +261,7 @@ class File(object):
 
     def add_dep(self, mode, dep):
         src = File(name=dep)
-        reldep = relpath(dep, vars.BASE)
-        debug2('add-dep: %r < %s %r\n' % (self.name, mode, reldep))
-        assert(src.name == reldep)
+        debug2('add-dep: %r < %s %r\n' % (self.name, mode, src.name))
         assert(self.id != src.id)
         _write("insert or replace into Deps "
                "    (target, mode, source) values (?,?,?)",

t/.gitignore

@@ -16,3 +16,5 @@ test2.args
 /touch1
 /touch1.do
 /deltest2
+/always1
+/always1.log

t/always1.do

@@ -0,0 +1,3 @@
+echo $$ >>always1.log
+echo $$
+redo-always

t/alwaystest.do

@@ -0,0 +1,13 @@
+rm -f always1 always1.log
+
+redo always1
+[ "$(wc -l <always1.log)" -eq 1 ] || exit 11
+
+# This shouldn't rebuild, but because other people might be running flush-cache.sh
+# in parallel with us, we can't be 100% sure it won't.  So don't test it.
+#redo-ifchange always1
+#[ "$(wc -l <always1.log)" -eq 1 ] || exit 21
+
+./flush-cache.sh
+redo-ifchange always1
+[ "$(wc -l <always1.log)" -eq 2 ] || exit 31

t/clean.do

@@ -1,5 +1,5 @@
 redo example/clean curse/clean deps/clean "space dir/clean" stamp/clean
 rm -f c c.c c.c.c c.c.c.b c.c.c.b.b d mode1 makedir.log chdir1 deltest2 \
-	hello [by]ellow *.o *~ .*~ CC LD passfail silence silence.do \
-	touch1 touch1.do
+	hello [by]ellow *.o *~ .*~ *.log CC LD passfail silence silence.do \
+	touch1 touch1.do always1
 rm -rf makedir

t/stamp/stamptest.do

@@ -7,6 +7,7 @@ redo stampy
 
 # stampy already exists, so we won't generate it a second time, even though
 # usestamp depends on it.
+../flush-cache.sh
 redo-ifchange usestamp
 [ "$(wc -l <stampy.log)" -eq 1 ] || exit 21
 [ "$(wc -l <usestamp.log)" -eq 1 ] || exit 12
@@ -17,6 +18,7 @@ redo stampy
 [ "$(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.sh
 redo-ifchange usestamp
 [ "$(wc -l <stampy.log)" -eq 2 ] || exit 41
 [ "$(wc -l <usestamp.log)" -eq 1 ] || exit 42

t/test.do

@@ -2,4 +2,4 @@ redo-ifchange all
 ./hello >&2
 redo deltest deltest2 test.args test2.args passfailtest chdirtest \
 	curse/test deps/test "space dir/test" modetest makedir2 \
-	silencetest touchtest stamp/test
+	silencetest touchtest stamp/test alwaystest