git/resolve-undo.c, branch v2.36.2

Merge branch 'ds/sparse-index-protections'

2021-04-30T04:50:26Z

Builds on top of the sparse-index infrastructure to mark operations that are not ready to mark with the sparse index, causing them to fall back on fully-populated index that they always have worked with. * ds/sparse-index-protections: (47 commits) name-hash: use expand_to_path() sparse-index: expand_to_path() name-hash: don't add directories to name_hash revision: ensure full index resolve-undo: ensure full index read-cache: ensure full index pathspec: ensure full index merge-recursive: ensure full index entry: ensure full index dir: ensure full index update-index: ensure full index stash: ensure full index rm: ensure full index merge-index: ensure full index ls-files: ensure full index grep: ensure full index fsck: ensure full index difftool: ensure full index commit: ensure full index checkout: ensure full index ...

resolve-undo: ensure full index

2021-04-14T20:47:45Z

Before iterating over all cache entries, ensure that a sparse index is expanded to a full index to avoid unexpected behavior. Signed-off-by: Derrick Stolee Reviewed-by: Elijah Newren Signed-off-by: Junio C Hamano

use CALLOC_ARRAY

2021-03-14T00:00:09Z

Add and apply a semantic patch for converting code that open-codes CALLOC_ARRAY to use it instead. It shortens the code and infers the element size automatically. Signed-off-by: René Scharfe Signed-off-by: Junio C Hamano

resolve-undo.c: use the right index instead of the_index

2018-08-13T21:14:44Z

Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano

dir.c: remove an implicit dependency on the_index in pathspec code

2018-08-13T21:14:42Z

Make the match_patchspec API and friends take an index_state instead of assuming the_index in dir.c. All external call sites are converted blindly to keep the patch simple and retain current behavior. Individual call sites may receive further updates to use the right index instead of the_index. Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano

block alloc: add lifecycle APIs for cache_entry structs

2018-07-03T17:58:27Z

It has been observed that the time spent loading an index with a large number of entries is partly dominated by malloc() calls. This change is in preparation for using memory pools to reduce the number of malloc() calls made to allocate cahce entries when loading an index. Add an API to allocate and discard cache entries, abstracting the details of managing the memory backing the cache entries. This commit does actually change how memory is managed - this will be done in a later commit in the series. This change makes the distinction between cache entries that are associated with an index and cache entries that are not associated with an index. A main use of cache entries is with an index, and we can optimize the memory management around this. We still have other cases where a cache entry is not persisted with an index, and so we need to handle the "transient" use case as well. To keep the congnitive overhead of managing the cache entries, there will only be a single discard function. This means there must be enough information kept with the cache entry so that we know how to discard them. A summary of the main functions in the API is: make_cache_entry: create cache entry for use in an index. Uses specified parameters to populate cache_entry fields. make_empty_cache_entry: Create an empty cache entry for use in an index. Returns cache entry with empty fields. make_transient_cache_entry: create cache entry that is not used in an index. Uses specified parameters to populate cache_entry fields. make_empty_transient_cache_entry: create cache entry that is not used in an index. Returns cache entry with empty fields. discard_cache_entry: A single function that knows how to discard a cache entry regardless of how it was allocated. Signed-off-by: Jameson Miller Signed-off-by: Junio C Hamano

read-cache: teach make_cache_entry to take object_id

2018-07-03T17:58:15Z

Teach make_cache_entry function to take object_id instead of a SHA-1. Signed-off-by: Junio C Hamano

cache: add a function to read an object ID from a buffer

2018-05-02T04:59:48Z

In various places throughout the codebase, we need to read data into a struct object_id from a pack or other unsigned char buffer. Add an inline function that does this based on the current hash algorithm in use, and use it in several places. Signed-off-by: brian m. carlson Signed-off-by: Junio C Hamano

resolve-undo: convert struct resolve_undo_info to object_id

2018-03-14T16:23:47Z

Convert the sha1 member of this struct to be an array of struct object_id instead. This change is needed to convert find_unique_abbrev. Convert some instances of hard-coded constants to use the_hash_algo as well. Signed-off-by: brian m. carlson Signed-off-by: Junio C Hamano

cache: convert struct cache_entry to use struct object_id

2016-09-07T19:59:42Z

Convert struct cache_entry to use struct object_id by applying the following semantic patch and the object_id transforms from contrib, plus the actual change to the struct: @@ struct cache_entry E1; @@ - E1.sha1 + E1.oid.hash @@ struct cache_entry *E1; @@ - E1->sha1 + E1->oid.hash Signed-off-by: brian m. carlson Signed-off-by: Junio C Hamano