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4705889c3d
In preparation for allowing both the --shallow and --path-walk options in the 'git pack-objects' builtin, create a new 'edge_aggressive' option in the path-walk API. This option will help walk the boundary more thoroughly and help avoid sending extra objects during fetches and pushes. The only use of the 'edge_hint_aggressive' option in the revision API is within mark_edges_uninteresting(), which is usually called before between prepare_revision_walk() and before visiting commits with get_revision(). In prepare_revision_walk(), the UNINTERESTING commits are walked until a boundary is found. Signed-off-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/*
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* path-walk.h : Methods and structures for walking the object graph in batches
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* by the paths that can reach those objects.
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*/
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#include "object.h" /* Required for 'enum object_type'. */
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struct rev_info;
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struct oid_array;
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struct pattern_list;
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/**
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* The type of a function pointer for the method that is called on a list of
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* objects reachable at a given path.
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*/
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typedef int (*path_fn)(const char *path,
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struct oid_array *oids,
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enum object_type type,
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void *data);
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struct path_walk_info {
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/**
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* revs provides the definitions for the commit walk, including
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* which commits are UNINTERESTING or not. This structure is
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* expected to be owned by the caller.
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*/
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struct rev_info *revs;
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/**
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* The caller wishes to execute custom logic on objects reachable at a
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* given path. Every reachable object will be visited exactly once, and
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* the first path to see an object wins. This may not be a stable choice.
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*/
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path_fn path_fn;
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void *path_fn_data;
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/**
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* Initialize which object types the path_fn should be called on. This
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* could also limit the walk to skip blobs if not set.
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*/
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int commits;
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int trees;
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int blobs;
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int tags;
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/**
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* When 'prune_all_uninteresting' is set and a path has all objects
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* marked as UNINTERESTING, then the path-walk will not visit those
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* objects. It will not call path_fn on those objects and will not
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* walk the children of such trees.
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*/
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int prune_all_uninteresting;
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/**
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* When 'edge_aggressive' is set, then the revision walk will use
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* the '--object-edge-aggressive' option to mark even more objects
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* as uninteresting.
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*/
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int edge_aggressive;
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/**
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* Specify a sparse-checkout definition to match our paths to. Do not
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* walk outside of this sparse definition. If the patterns are in
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* cone mode, then the search may prune directories that are outside
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* of the cone. If not in cone mode, then all tree paths will be
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* explored but the path_fn will only be called when the path matches
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* the sparse-checkout patterns.
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*/
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struct pattern_list *pl;
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};
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#define PATH_WALK_INFO_INIT { \
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.blobs = 1, \
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.trees = 1, \
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.commits = 1, \
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.tags = 1, \
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}
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void path_walk_info_init(struct path_walk_info *info);
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void path_walk_info_clear(struct path_walk_info *info);
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/**
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* Given the configuration of 'info', walk the commits based on 'info->revs' and
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* call 'info->path_fn' on each discovered path.
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*
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* Returns nonzero on an error.
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*/
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int walk_objects_by_path(struct path_walk_info *info);
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