upstream/mercurial-mirror Files · mercurial/bdiff.h

revlog: add revmap back to revlog.addgroup...

revlog: add revmap back to revlog.addgroup The recent patch removed the linkmapper argument from addgroup, as part of trying to make addgroup more agnostic from the changegroup format. It turns out that the changegroup can't resolve linkrevs while iterating over the deltas, because applying the deltas might affect the linkrev resolution. For example, when applying a series of changelog entries, the linkmapper just returns len(cl). If we're iterating over the deltas without applying them to the changelog, this results in incorrect linkrevs. This was caught by the hgsql extension, which reads the revisions before applying them. The fix is to return linknodes as part of the delta iterator, and let the consumer choose what to do. Differential Revision: https://phab.mercurial-scm.org/D730

Maciej Fijalkowski - - Load All Authors

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      #ifndef _HG_BDIFF_H_

      #define _HG_BDIFF_H_

      struct bdiff_line {

      	int hash, n, e;

      	ssize_t len;

      	const char *l;

      };

      struct bdiff_hunk;

      struct bdiff_hunk {

      	int a1, a2, b1, b2;

      	struct bdiff_hunk *next;

      };

      int bdiff_splitlines(const char *a, ssize_t len, struct bdiff_line **lr);

      int bdiff_diff(struct bdiff_line *a, int an, struct bdiff_line *b, int bn,

      	struct bdiff_hunk *base);

      void bdiff_freehunks(struct bdiff_hunk *l);

      #endif

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				#ifndef _HG_BDIFF_H_
				#define _HG_BDIFF_H_

				struct bdiff_line {
				int hash, n, e;
				ssize_t len;
				const char *l;
				};

				struct bdiff_hunk;
				struct bdiff_hunk {
				int a1, a2, b1, b2;
				struct bdiff_hunk *next;
				};

				int bdiff_splitlines(const char a, ssize_t len, struct bdiff_line *lr);
				int bdiff_diff(struct bdiff_line a, int an, struct bdiff_line b, int bn,
				struct bdiff_hunk *base);
				void bdiff_freehunks(struct bdiff_hunk *l);

				#endif