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gitea/modules/git
KN4CK3R c0b97d0485
Prevent double use of git cat-file session. (#29298) (#29301)
Backport #29298
Fixes the reason why #29101 is hard to replicate.
Related #29297

Create a repo with a file with minimum size 4097 bytes (I use 10000) and
execute the following code:
```go
gitRepo, err := gitrepo.OpenRepository(db.DefaultContext, <repo>)
assert.NoError(t, err)

commit, err := gitRepo.GetCommit(<sha>)
assert.NoError(t, err)

entry, err := commit.GetTreeEntryByPath(<file>)
assert.NoError(t, err)

b := entry.Blob()

// Create a reader
r, err := b.DataAsync()
assert.NoError(t, err)
defer r.Close()

// Create a second reader
r2, err := b.DataAsync()
assert.NoError(t, err) // Should be no error but is ErrNotExist
defer r2.Close()
```

The problem is the check in `CatFileBatch`:


79217ea63c/modules/git/repo_base_nogogit.go (L81-L87)
`Buffered() > 0` is used to check if there is a "operation" in progress
at the moment. This is a problem because we can't control the internal
buffer in the `bufio.Reader`. The code above demonstrates a sequence
which initiates an operation for which the code thinks there is no
active processing. The second call to `DataAsync()` therefore reuses the
existing instances instead of creating a new batch reader.
2024-02-22 03:20:20 +00:00
..
foreachref Use refname:strip-2 instead of refname:short when syncing tags (#28797) (#28811) 2024-01-16 07:33:33 +00:00
internal Refactor git command package to improve security and maintainability (#22678) 2023-02-04 10:30:43 +08:00
pipeline Refactor and tidy-up the merge/update branch code (#22568) 2023-03-07 15:07:35 -05:00
tests/repos Support .git-blame-ignore-revs file (#26395) 2023-09-16 17:42:34 +00:00
url Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
batch_reader.go Make git batch operations use parent context timeout instead of default timeout (#26325) 2023-08-04 14:50:41 +02:00
blame.go Read previous info from git blame (#28306) (#28310) 2023-12-01 08:27:35 +01:00
blame_test.go Read previous info from git blame (#28306) (#28310) 2023-12-01 08:27:35 +01:00
blob.go Fix profile render when the README.md size is larger than 1024 bytes (#25131) 2023-06-13 09:02:25 +00:00
blob_gogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
blob_nogogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
blob_test.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
command.go Add option to disable ambiguous unicode characters detection (#28454) (#28499) 2023-12-18 12:20:37 +08:00
command_race_test.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
command_test.go Improve git log for debugging (#24095) 2023-04-13 19:17:27 -04:00
commit.go Convert git commit summary to valid UTF8. (#28356) (#28358) 2023-12-05 09:19:08 +00:00
commit_convert_gogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
commit_info.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
commit_info_gogit.go Replace interface{} with any (#25686) 2023-07-04 18:36:08 +00:00
commit_info_nogogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
commit_info_test.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
commit_reader.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
commit_test.go Add merge files files to GetCommitFileStatus (#20515) 2023-08-24 10:03:49 +00:00
diff.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
diff_test.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
error.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
git.go Refactor git version functions and check compatibility (#29155) (#29157) 2024-02-17 02:47:18 +00:00
git_test.go Refactor git version functions and check compatibility (#29155) (#29157) 2024-02-17 02:47:18 +00:00
hook.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
last_commit_cache.go Replace interface{} with any (#25686) 2023-07-04 18:36:08 +00:00
last_commit_cache_gogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
last_commit_cache_nogogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
log_name_status.go Remove redundant nil check in WalkGitLog (#26773) 2023-08-29 11:03:43 +00:00
notes.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
notes_gogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
notes_nogogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
notes_test.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
parse_gogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
parse_gogit_test.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
parse_nogogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
parse_nogogit_test.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
README.md
ref.go Fix compatible for webhook ref type (#25195) 2023-06-13 06:05:28 +00:00
ref_test.go Use the type RefName for all the needed places and fix pull mirror sync bugs (#24634) 2023-05-26 01:04:48 +00:00
remote.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo.go Refactor parseSignatureFromCommitLine (#29054) (#29108) 2024-02-09 10:26:43 +01:00
repo_archive.go Fix archive creating LFS hooks and breaking pull requests (#28848) (#28851) 2024-01-21 14:43:31 +00:00
repo_attribute.go Refactor git version functions and check compatibility (#29155) (#29157) 2024-02-17 02:47:18 +00:00
repo_attribute_test.go Use more specific test methods (#24265) 2023-04-22 17:56:27 -04:00
repo_base.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo_base_gogit.go Update go dependencies and fix go-git (#28893) (#28934) 2024-01-26 15:08:43 +08:00
repo_base_nogogit.go Prevent double use of git cat-file session. (#29298) (#29301) 2024-02-22 03:20:20 +00:00
repo_blame.go Remove git.FileBlame (#25841) 2023-07-12 19:07:29 +02:00
repo_blob.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo_blob_gogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo_blob_nogogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo_blob_test.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo_branch.go Use the type RefName for all the needed places and fix pull mirror sync bugs (#24634) 2023-05-26 01:04:48 +00:00
repo_branch_gogit.go Make gogit Repository.GetBranchNames consistent (#28348) (#28386) 2023-12-07 13:03:27 -05:00
repo_branch_nogogit.go Refactor git command package to improve security and maintainability (#22678) 2023-02-04 10:30:43 +08:00
repo_branch_test.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo_commit.go Add -F to commit search to treat keywords as strings (#28744) (#28748) 2024-01-10 21:29:01 +01:00
repo_commit_gogit.go Fix commit retrieval by tag (#21804) 2023-03-02 13:32:21 +08:00
repo_commit_nogogit.go Fix commit retrieval by tag (#21804) 2023-03-02 13:32:21 +08:00
repo_commit_test.go Use more specific test methods (#24265) 2023-04-22 17:56:27 -04:00
repo_commitgraph.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo_commitgraph_gogit.go Update go dependencies and fix go-git (#28893) (#28934) 2024-01-26 15:08:43 +08:00
repo_compare.go Support getting changed files when commit ID is EmptySHA (#26290) 2023-08-04 02:53:15 +00:00
repo_compare_test.go Support getting changed files when commit ID is EmptySHA (#26290) 2023-08-04 02:53:15 +00:00
repo_gpg.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo_hook.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo_index.go Update tool dependencies, lock govulncheck and actionlint (#25655) 2023-07-09 11:58:06 +00:00
repo_language_stats.go Merge different languages for language stats (#24900) 2023-05-24 19:37:36 +00:00
repo_language_stats_gogit.go Merge different languages for language stats (#24900) 2023-05-24 19:37:36 +00:00
repo_language_stats_nogogit.go Merge different languages for language stats (#24900) 2023-05-24 19:37:36 +00:00
repo_language_stats_test.go Merge different languages for language stats (#24900) 2023-05-24 19:37:36 +00:00
repo_object.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo_ref.go Show branches and tags that contain a commit (#25180) 2023-07-27 12:47:41 +02:00
repo_ref_gogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo_ref_nogogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo_ref_test.go Fix commit retrieval by tag (#21804) 2023-03-02 13:32:21 +08:00
repo_stats.go Refactor git command package to improve security and maintainability (#22678) 2023-02-04 10:30:43 +08:00
repo_stats_test.go Fix commit retrieval by tag (#21804) 2023-03-02 13:32:21 +08:00
repo_tag.go Refactor parseSignatureFromCommitLine (#29054) (#29108) 2024-02-09 10:26:43 +01:00
repo_tag_gogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
repo_tag_nogogit.go Refactor git command package to improve security and maintainability (#22678) 2023-02-04 10:30:43 +08:00
repo_tag_test.go Refactor parseSignatureFromCommitLine (#29054) (#29108) 2024-02-09 10:26:43 +01:00
repo_test.go Faster git.GetDivergingCommits (#24482) 2023-05-04 05:08:41 +00:00
repo_tree.go Refactor git command package to improve security and maintainability (#22678) 2023-02-04 10:30:43 +08:00
repo_tree_gogit.go Use complete SHA to create and query commit status (#22244) 2022-12-27 21:12:49 +08:00
repo_tree_nogogit.go Use complete SHA to create and query commit status (#22244) 2022-12-27 21:12:49 +08:00
sha1.go Support getting changed files when commit ID is EmptySHA (#26290) 2023-08-04 02:53:15 +00:00
sha1_gogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
sha1_nogogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
sha1_test.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
signature.go Refactor parseSignatureFromCommitLine (#29054) (#29108) 2024-02-09 10:26:43 +01:00
signature_gogit.go Refactor parseSignatureFromCommitLine (#29054) (#29108) 2024-02-09 10:26:43 +01:00
signature_nogogit.go Refactor parseSignatureFromCommitLine (#29054) (#29108) 2024-02-09 10:26:43 +01:00
signature_test.go Refactor parseSignatureFromCommitLine (#29054) (#29108) 2024-02-09 10:26:43 +01:00
submodule.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
submodule_test.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
tag.go Refactor parseSignatureFromCommitLine (#29054) (#29108) 2024-02-09 10:26:43 +01:00
tag_test.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
tree.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
tree_blob.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
tree_blob_gogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
tree_blob_nogogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
tree_entry.go Remember to attach the parent tree when converting TreeEntry() -> Tree() (#22902) 2023-02-14 21:23:04 +00:00
tree_entry_gogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
tree_entry_mode.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
tree_entry_nogogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
tree_entry_test.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
tree_gogit.go Implement FSFE REUSE for golang files (#21840) 2022-11-27 18:20:29 +00:00
tree_nogogit.go Refactor git command package to improve security and maintainability (#22678) 2023-02-04 10:30:43 +08:00
utils.go Replace interface{} with any (#25686) 2023-07-04 18:36:08 +00:00

Git Module

This module is merged from https://github.com/go-gitea/git which is a Go module to access Git through shell commands. Now it's a part of gitea's main repository for easier pull request.