- 03 Nov, 2022 1 commit
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It is expensive to compute the sha1 of the entire commit-graph file each time we open it. Git only does this if it is re-writing the file. This patch will only verify the checksum when calling the external API git_commit_graph_open(), which explicitly says it opens and verifies the commit graph in the documentation. For internal library calls, we call git_commit_graph_get_file(), which mmaps the commit-graph file in read-only mode. Therefore it is safe to skip the validation check there. Tests were added to check that the validation works in the happy path, and prevents us from opening the file when validation fails. (Note from Derrick Stolee: This patch was applied internally at GitHub after we recognized the performance impact it had during an upgrade of libgit2. The original author left the company before we remembered to send it upstream.) Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Colin Stolley committed
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- 14 Jul, 2022 1 commit
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The experimental function signature is only available when `GIT_EXPERIMENTAL_SHA256` is enabled.
Edward Thomson committed
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- 20 Jun, 2022 1 commit
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`git_oid`s now have a type, and we require the oid type when creating the object id from creation functions.
Edward Thomson committed
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- 15 Jun, 2022 1 commit
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In preparation for SHA256 support, `GIT_OID_RAWSZ` and `GIT_OID_HEXSZ` need to indicate that they're the size of _SHA1_ OIDs.
Edward Thomson committed
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- 23 Feb, 2022 1 commit
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Like we want to separate libgit2 and utility source code, we want to separate libgit2 and utility tests. Start by moving all the tests into libgit2.
Edward Thomson committed
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- 28 Jan, 2022 1 commit
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Underscores in filenames in tests indicate a logical separation - so `commit_graph` becomes `commit::graph`. Rename it to `commitgraph` to avoid this.
Edward Thomson committed
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- 17 Oct, 2021 1 commit
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libgit2 has two distinct requirements that were previously solved by `git_buf`. We require: 1. A general purpose string class that provides a number of utility APIs for manipulating data (eg, concatenating, truncating, etc). 2. A structure that we can use to return strings to callers that they can take ownership of. By using a single class (`git_buf`) for both of these purposes, we have confused the API to the point that refactorings are difficult and reasoning about correctness is also difficult. Move the utility class `git_buf` to be called `git_str`: this represents its general purpose, as an internal string buffer class. The name also is an homage to Junio Hamano ("gitstr"). The public API remains `git_buf`, and has a much smaller footprint. It is generally only used as an "out" param with strict requirements that follow the documentation. (Exceptions exist for some legacy APIs to avoid breaking callers unnecessarily.) Utility functions exist to convert a user-specified `git_buf` to a `git_str` so that we can call internal functions, then converting it back again.
Edward Thomson committed
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- 27 Jul, 2021 1 commit
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This change adds the git_commit_graph_writer_* functions to allow to write and create `commit-graph` files from `.idx`/`.pack` files or `git_revwalk`s. Part of: #5757
lhchavez committed
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- 16 Jul, 2021 1 commit
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Edward Thomson committed
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- 07 Jul, 2021 1 commit
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Passes w/ gcc 11 on Fedora x64. Protip: So you don;t have to suffer, ``` perl -pe 's/(-?(?:0x)?[A-Fa-f0-9]+)([Uu])?[Ll][Ll]/\U$2INT64_C(\E$1)/mg' ```
Calvin Buckley committed
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- 10 Mar, 2021 1 commit
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This change does a medium-size refactor of the git_commit_graph_file and the interaction with the ODB. Now instead of the ODB owning a direct reference to the git_commit_graph_file, there will be an intermediate git_commit_graph. The main advantage of that is that now end users can explicitly set a git_commit_graph that is eagerly checked for errors, while still being able to lazily use the commit-graph in a regular ODB, if the file is present.
lhchavez committed
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- 10 Jan, 2021 3 commits
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This change introduces a function that allows the caller to know whether the `commit-graph` file has not been modified since it was parsed. Part of: #5757
lhchavez committed -
This change introduces `git_commit_graph_entry_find()` and `git_commit_graph_entry_parent()`. These two functions allow a much faster lookup of commits by ID, since the ODB does not need to be consulted, the commit object does not need to be inflated, and the contents of the commit object do not need to be parsed. Part of: #5757
lhchavez committed -
This change is the first in a series to add support for git's commit-graph. This should speed up commit graph traversals by avoiding object parsing and allowing some operations to terminate earlier. Part of: #5757
lhchavez committed
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