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make -d:nimdiff feature more robust

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This commit is contained in:
Andreas Rumpf 2017-04-26 10:27:42 +02:00
commit 7b1568d19c
1 changed files with 5 additions and 2 deletions
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7
compiler/cgen.nim
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@ -1315,8 +1315,11 @@ proc shouldRecompile(code: Rope, cfile: Cfile): bool =
if optForceFullMake notin gGlobalOptions:
if not equalsFile(code, cfile.cname):
if isDefined("nimdiff"):
copyFile(cfile.cname, cfile.cname & ".backup")
echo "diff ", cfile.cname, ".backup ", cfile.cname
if fileExists(cfile.cname):
copyFile(cfile.cname, cfile.cname & ".backup")
echo "diff ", cfile.cname, ".backup ", cfile.cname
else:
echo "new file ", cfile.cname
writeRope(code, cfile.cname)
return
if existsFile(cfile.obj) and os.fileNewer(cfile.obj, cfile.cname):