Re: [PATCH v2 1/1] xdiff: provide indirection to git functions

[Johannes Schindelin <Johannes.Schindelin@gmx.de>]

Hi,

On Tue, 22 Feb 2022, Phillip Wood wrote:

> On 17/02/2022 22:54, Edward Thomson wrote:
> > Provide an indirection layer into the git-specific functionality and
> > utilities in `git-xdiff.h`, prefixing those types and functions with
> > `xdl_` (and `XDL_` for macros).  This allows other projects that use
> > git's xdiff implementation to keep up-to-date; they can now take all the
> > files _except_ `git-xdiff.h`, which they have customized for their own
> > environment.
>
> The changes since V1 look good,

Indeed. This is the range-diff:

-- snip --
1:  52c8f141cbe1 ! 1:  e05e9b5e2f27 xdiff: provide indirection to git functions
    @@ xdiff/git-xdiff.h (new)
     +#ifndef GIT_XDIFF_H
     +#define GIT_XDIFF_H
     +
    ++#include "git-compat-util.h"
    ++
     +#define xdl_malloc(x) xmalloc(x)
     +#define xdl_free(ptr) free(ptr)
     +#define xdl_realloc(ptr,x) xrealloc(ptr,x)
    @@ xdiff/xdiffi.c: static void xdl_mark_ignorable_lines(xdchange_t *xscr, xdfenv_t

      ## xdiff/xinclude.h ##
     @@
    + #if !defined(XINCLUDE_H)
      #define XINCLUDE_H

    - #include "git-compat-util.h"
    +-#include "git-compat-util.h"
     +#include "git-xdiff.h"
      #include "xmacros.h"
      #include "xdiff.h"
      #include "xtypes.h"
    -@@
    - #include "xdiffi.h"
    - #include "xemit.h"
    +
    + ## xdiff/xmerge.c ##
    +@@ xdiff/xmerge.c: static int xdl_cleanup_merge(xdmerge_t *c)
    + 		if (c->mode == 0)
    + 			count++;
    + 		next_c = c->next;
    +-		free(c);
    ++		xdl_free(c);
    + 	}
    + 	return count;
    + }
    +@@ xdiff/xmerge.c: static void xdl_merge_two_conflicts(xdmerge_t *m)
    + 	m->chg1 = next_m->i1 + next_m->chg1 - m->i1;
    + 	m->chg2 = next_m->i2 + next_m->chg2 - m->i2;
    + 	m->next = next_m->next;
    +-	free(next_m);
    ++	xdl_free(next_m);
    + }

    --
    - #endif /* #if !defined(XINCLUDE_H) */
    + /*
-- snap --

My ACK from
https://lore.kernel.org/git/nycvar.QRO.7.76.6.2202171644090.348@tvgsbejvaqbjf.bet/
still holds. Junio could you please add it before merging it down to
`next`?

Thanks,
Dscho