From f644f3bd0433d7a85b9933759006a9fb5e1b9865 Mon Sep 17 00:00:00 2001
From: Avery Pennarun <apenwarr@gmail.com>
Date: Sun, 21 Nov 2010 03:34:32 -0800
Subject: [PATCH] Remove the need for relpath (and thus abspath) in builder.py.

---
 builder.py | 21 +++++++++++++--------
 vars.py    |  1 +
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/builder.py b/builder.py
index 71a2544..fd5a0f3 100644
--- a/builder.py
+++ b/builder.py
@@ -1,6 +1,6 @@
 import sys, os, subprocess, random
 import vars, jwack, state
-from helpers import log, log_, relpath, debug2, err, unlink
+from helpers import log, log_, debug2, err, unlink
 
 
 class BuildError(Exception):
@@ -32,13 +32,19 @@ def _find_do_file(t):
 
 
 def _preexec(t):
+    td = os.environ.get('REDO_PWD', '')
+    dn = os.path.dirname(t)
+    os.environ['REDO_PWD'] = os.path.join(td, dn)
     os.environ['REDO_TARGET'] = os.path.basename(t)
     os.environ['REDO_DEPTH'] = vars.DEPTH + '  '
-    dn = os.path.dirname(t)
     if dn:
         os.chdir(dn)
 
 
+def _nice(t):
+    return os.path.normpath(os.path.join(vars.PWD, t))
+
+
 def _build(t):
     if (os.path.exists(t) and not state.is_generated(t)
           and not os.path.exists('%s.do' % t)):
@@ -68,7 +74,7 @@ def _build(t):
     if vars.VERBOSE:
         argv[1] += 'v'
         log_('\n')
-    log('%s\n' % relpath(t, vars.STARTDIR))
+    log('%s\n' % _nice(t))
     rv = subprocess.call(argv, preexec_fn=lambda: _preexec(t),
                          stdout=f.fileno())
     if rv==0:
@@ -87,7 +93,7 @@ def _build(t):
     if rv != 0:
         raise BuildError('%s: exit code %d' % (t,rv))
     if vars.VERBOSE:
-        log('%s (done)\n\n' % relpath(t, vars.STARTDIR))
+        log('%s (done)\n\n' % _nice(t))
 
 
 def build(t):
@@ -121,7 +127,7 @@ def main(targets, buildfunc):
         lock = state.Lock(t)
         lock.trylock()
         if not lock.owned:
-            log('%s (locked...)\n' % relpath(t, vars.STARTDIR))
+            log('%s (locked...)\n' % _nice(t))
             locked.append(t)
         else:
             jwack.start_job(t, lock,
@@ -136,10 +142,9 @@ def main(targets, buildfunc):
                 lock.wait()
                 lock.trylock()
             assert(lock.owned)
-            relp = relpath(t, vars.STARTDIR)
-            log('%s (...unlocked!)\n' % relp)
+            log('%s (...unlocked!)\n' % _nice(t))
             if state.stamped(t) == None:
-                err('%s: failed in another thread\n' % relp)
+                err('%s: failed in another thread\n' % _nice(t))
                 retcode[0] = 2
                 lock.unlock()
             else:
diff --git a/vars.py b/vars.py
index c750cfc..ae7ad0a 100644
--- a/vars.py
+++ b/vars.py
@@ -1,6 +1,7 @@
 import os
 import atoi
 
+PWD = os.environ.get('REDO_PWD', '')
 TARGET = os.environ.get('REDO_TARGET', '')
 DEPTH = os.environ.get('REDO_DEPTH', '')
 DEBUG = atoi.atoi(os.environ.get('REDO_DEBUG', ''))