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GRIM: Rewrite of PatchR #617

merged 5 commits into from May 8, 2012

3 participants

ResidualVM member

Same as #606, with a major/minor versioning scheme and more error handling code.
@Klusark and Giucam: I've tested all patches, except for those for si.lua and ha.lua. Could you check if they work correctly? I don't know how to trigger the bugs that these patches resolve.

Original description:
This commit introduces a new version of patchr, written from scratch, but heavily based on bsdiff format (
This new format is totally binary, and comes with a tool (diffr) to build automatically the patches from the old and the new file.
For more information about the new format, see the documentation alleged to the pull request of diffr and patchr tools in residualvm-tools.

The diffr tool, with the new -b option of luac, makes the process of patching lua scripts much more easy, I'll write a guide for that.
Furthermore it can patch efficiently large files, since the whole old file is not loaded anymore in the ram and it doesn't make memmoves on larges portions of the file.

All patches written for the old version have been ported to this one.

Andrea Corna added some commits Apr 10, 2012
Andrea Corna GRIM: Rewrite Patchr
This new version of patchr is based on bsdiff format (although it doesn't
share code with it, since it has been written from scratch)
All patches written for the old version have been ported to this one.
Andrea Corna GRIM: Add missing patch a44b39c
ResidualVM member
giucam commented May 3, 2012

The patch for ha.lua works. I don't remember what was wrong with si, though.

ResidualVM member
klusark commented May 6, 2012

si is working fine. I can't actually remember what the change was, but without the patch the scene has a ton of errors.

ResidualVM member

warning C4701: potentially uninitialized local variable 'skipSize' used

ResidualVM member

Fixed, thanks.

@YakBizzarro YakBizzarro merged commit 9da01a4 into residualvm:master May 8, 2012
@YakBizzarro YakBizzarro deleted the YakBizzarro:patchr2-all branch Dec 21, 2012
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