git/tree-diff.c, branch v1.2.2

Make the "struct tree_desc" operations available to others

2006-02-01T00:07:01Z

We have operations to "extract" and "update" a "struct tree_desc", but we only used them in tree-diff.c and they were static to that file. But other tree traversal functions can use them to their advantage Signed-off-by: Linus Torvalds Signed-off-by: Junio C Hamano

avoid asking ?alloc() for zero bytes.

2005-12-27T01:23:59Z

Avoid asking for zero bytes when that change simplifies overall logic. Later we would change the wrapper to ask for 1 byte on platforms that return NULL for zero byte request. Signed-off-by: Junio C Hamano

Split up tree diff functions into tree-diff.c library

2005-10-23T05:49:51Z

This makes the tree diff functionality independent of the "git-diff-tree" program, by splitting the core functionality up into a library file. This will be needed for when we teach git-rev-list to only follow a specified set of pathnames, rather than the global revision history. Most of it is a fairly straightforward code move, but it also involves some calling convention cleanup, and moving some of the static variables from diff-tree.c into the options structure. The actual tree change callback routines also become paramterized by the diff_options structure, allowing the library functionality to do something else than just show the diff on stdout. Right now the only user of this functionality remains git-diff-tree itself. Signed-off-by: Linus Torvalds Signed-off-by: Junio C Hamano