* Cache last commit to accelerate the repository directory page visit
* Default use default cache configuration
* add tests for last commit cache
* Simplify last commit cache
* Revert Enabled back
* Change the last commit cache default ttl to 8760h
* Fix test
* Some refactor on git diff and ignore getting commit information failed on migrating pull request review comments
* fix test
* fix lint
* Change error log to warn
* Add require signed commit for protected branch
* Fix fmt
* Make editor show if they will be signed
* bugfix
* Add basic merge check and better information for CRUD
* linting comment
* Add descriptors to merge signing
* Slight refactor
* Slight improvement to appearances
* Handle Merge API
* manage CRUD API
* Move error to error.go
* Remove fix to delete.go
* prep for merge
* need to tolerate \r\n in message
* check protected branch before trying to load it
* Apply suggestions from code review
Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>
* fix commit-reader
Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com>
Fix#5997.
If a push causes the patch/diff of a PR towards target branch to change, all existing reviews for the PR will be set and shown as stale.
New branch protection option to dismiss stale approvals are added.
To show that a review is not based on the latest PR changes, an hourglass is shown
* Adds functionality to change target branch of created pull requests
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Use const instead of var in JavaScript additions
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Check if branches are equal and if PR already exists before changing target branch
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Make sure to check all commits
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Print error messages for user as error flash message
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Disallow changing target branch of closed or merged pull requests
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Resolve conflicts after merge of upstream/master
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Change order of branch select fields
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Removes duplicate check
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Use ctx.Tr for translations
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Recompile JS
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Use correct translation namespace
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Remove redundant if condition
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Moves most change branch logic into pull service
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Completes comment
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Add Ref to ChangesPayload for logging changed target branches
instead of creating a new struct
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Revert changes to go.mod
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Directly use createComment method
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Return 404 if pull request is not found. Move written check up
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Remove variable declaration
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Return client errors on change pull request target errors
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Return error in commit.HasPreviousCommit
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Adds blank line
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Test patch before persisting new target branch
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Update patch before testing (not working)
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Removes patch calls when changeing pull request target
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Removes unneeded check for base name
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Moves ChangeTargetBranch completely to pull service. Update patch status.
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Set webhook mode after errors were validated
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Update PR in one transaction
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Move logic for check if head is equal with branch to pull model
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Adds missing comment and simplify return
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Adjust CreateComment method call
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Change graceful to use a singleton obtained through GetManager instead of a global.
* Graceful: Make TestPullRequests shutdownable
* Graceful: Make the cron tasks graceful
* Graceful: AddTestPullRequest run in graceful ctx
* Graceful: SyncMirrors shutdown
* Graceful: SetDefaultContext for Xorm to be HammerContext
* Avoid starting graceful for migrate commands and checkout
* Graceful: DeliverHooks now can be shutdown
* Fix multiple syncing errors in modules/sync/UniqueQueue & Make UniqueQueue closable
* Begin the process of making the repo indexer shutdown gracefully
* Save patches to temporary files
* Remove SavePatch and generate patches on the fly
* Use ioutil.TempDir
* fixup! Use ioutil.TempDir
* fixup! fixup! Use ioutil.TempDir
* RemoveAll LocalCopyPath() in initIntergrationTest
* Default to status checking on PR creation
* Remove unnecessary set to StatusChecking
* Protect against unable to load repo
* Handle conflicts
* Restore original conflict setting
* In TestPullRequests update status to StatusChecking before running TestPatch
The underlying implementation of os.exec uses channels and goroutines.
It is possible to have time-variant error values returned from Cmd.Wait
depending on which comes first.
Also, the git subcommand and options should be separated tokens.
Fixes a flaky test in modules/git/command_test.go
* Graceful: Create callbacks to with contexts
* Graceful: Say when Gitea is completely finished
* Graceful: Git and Process within HammerTime
Force all git commands to terminate at HammerTime
Force all process commands to terminate at HammerTime
Move almost all git processes to run as git Commands
* Graceful: Always Hammer after Shutdown
* ProcessManager: Add cancel functionality
* Fix tests
* Make sure that process.Manager.Kill() cancels
* Make threadsafe access to Processes and remove own unused Kill
* Remove cmd from the process manager as it is no longer used
* the default context is the correct context
* get rid of double till
In investigating #7947 it has become clear that the storage component of go-git repositories needs closing.
This PR adds this Close function and adds the Close functions as necessary.
In TransferOwnership the ctx.Repo.GitRepo is closed if it is open to help prevent the risk of multiple open files.
Fixes#7947
This PR migrates temp_repo.go to use git.NewCommand instead creating processes by itself - this fixes the problem underlying PR #8905.
There are other places that run git outside of the controlled locale defined in #8548 but temp_repo.go is the only cause of failure of local testing in cases where English is not the default - implying that error messages from those other commands are not interpreted.
Replaces #8905
There are two major components to this PR:
* This PR handles merge and rebase failures from merging a little more nicely with Flash errors rather a 500.
* All git commands are run in the LC_ALL="C" environment to ensure that error messages are in English. This DefaultLocale is defined in a way that if necessary (due to platform weirdness) it can be overridden at build time using LDFLAGS="-X "code.gitea.io/gitea/modules/git.DefaultLocale=C"" with C changed for the locale as necessary.
This PR adds basic repository LFS management UI including the ability to find all possible pointers within the repository. Locks are not managed at present but would be addable through some simple additions.
* Add basic repository lfs management
* add auto-associate function
* Add functionality to find commits with this lfs file
* Add link to find commits on the lfs file view
* Adjust commit view to state the likely branch causing the commit
* Only read Oid from database
* Ensure defaultGPGSettings not nil
* Ensure that coerced commits gain a reference to the repo
* Add warning if trying to get defaultgpgsetting on an unattached commit
This PR fixes#7598 by providing a configurable way of signing commits across the Gitea instance. Per repository configurability and import/generation of trusted secure keys is not provided by this PR - from a security PoV that's probably impossible to do properly. Similarly web-signing, that is asking the user to sign something, is not implemented - this could be done at a later stage however.
## Features
- [x] If commit.gpgsign is set in .gitconfig sign commits and files created through repofiles. (merges should already have been signed.)
- [x] Verify commits signed with the default gpg as valid
- [x] Signer, Committer and Author can all be different
- [x] Allow signer to be arbitrarily different - We still require the key to have an activated email on Gitea. A more complete implementation would be to use a keyserver and mark external-or-unactivated with an "unknown" trust level icon.
- [x] Add a signing-key.gpg endpoint to get the default gpg pub key if available
- Rather than add a fake web-flow user I've added this as an endpoint on /api/v1/signing-key.gpg
- [x] Try to match the default key with a user on gitea - this is done at verification time
- [x] Make things configurable?
- app.ini configuration done
- [x] when checking commits are signed need to check if they're actually verifiable too
- [x] Add documentation
I have decided that adjusting the docker to create a default gpg key is not the correct thing to do and therefore have not implemented this.
* Change tests to make it possible to run TestGit with 1.7.2
* Make merge run on 1.7.2
* Fix tracking and staging branch name problem
* Ensure that git 1.7.2 works on tests
* ensure that there is no chance for conflicts
* Fix-up missing merge issues
* Final rm
* Ensure LFS filters run on the tests
* Do not sign commits from temp repo
* Restore tracking fetch change
* Apply suggestions from code review
* Update modules/repofiles/temp_repo.go
* Resolve error when comparing images
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Check blob existence instead of git-ls when checking if file exists
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Show file metadata also when a file was newly added
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Fixes error in commit view
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Excludes assigning path and image infos for compare routers to service package
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Removes nil default and fixes import order
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Adds missing comments
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Moves methods for assigning compare data to context into repo router package
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Show image compare for deleted images as well. Simplify check if image should be displayed
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Adds side-by-side diff for images
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Explain blank imports
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Use complete word for width and height labels on image compare
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Update index.css from master
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Moves ImageInfo to git commit file
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Assign ImageInfo function for template and sets correct target for BeforeSourcePath
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Adds missing comment
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Return error if ImageInfo failed
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Avoid template panic when ImageInfo failed for some reason
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Show file size on image diff
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Removes unused helper function
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Reverts copyright year change
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Close file reader
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Update commit.go
Sets correct data key
* Moves reader.Close() up a few lines
* Updates index.css
* Updates CSS file
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Transfers adjustments for image compare to compare.go file
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Adjusts variable name
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Apply lesshint recommendations
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Do not show old image on image compare if it is not in index of base commit
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Change file size text
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Fix reading notes from nested trees
The GIT documentation for notes states "Permitted pathnames have the
form ab/cd/ef/.../abcdef...: a sequence of directory names of two
hexadecimal digits each followed by a filename with the rest of
the object ID."
* Add test case
* Fix new lines
* search commits via commit hash
Signed-off-by: Gary Kim <gary@garykim.dev>
* Also include all option for hash search
Signed-off-by: Gary Kim <gary@garykim.dev>
* Remove code duplication in commit search
Signed-off-by: Gary Kim <gary@garykim.dev>
* Add case ignore to commit hash search
Signed-off-by: Gary Kim <gary@garykim.dev>
* add history comments to detect page delete
Signed-off-by: Michael Gnehr <michael@gnehr.de>
* fix too much history entries
- caused by --follow flag
- if files with same contents exists
Signed-off-by: Michael Gnehr <michael@gnehr.de>
* style imprevements wiki
- history - wrap long author names
Signed-off-by: Michael Gnehr <michael@gnehr.de>
* Experimental support for git commit graph files and bloom filter index
Signed-off-by: Filip Navara <filip.navara@gmail.com>
* Force vendor of commitgraph
Signed-off-by: Filip Navara <filip.navara@gmail.com>
* Remove bloom filter experiment and debug prints
* Remove old code for building commit graphs
* Remove unused function
* Remove mmap usage
* gofmt
* sort vendor/modules.txt
* Add copyright header and log commit-graph error
* Fixes#2738 - /git/tags API
* proper URLs
* Adds function comments
* Updates swagger
* Removes newline from tag message
* Removes trailing newline from commit message
* Adds integration test
* Removed debugging
* Adds tests
* Fixes bug where multiple tags of same commit show wrong tag name
* Fix formatting
* Removes unused varaible
* Fix to annotated tag function names and response
* Update modules/git/repo_tag.go
Co-Authored-By: Lauris BH <lauris@nix.lv>
* Uses TagPrefix
* Changes per review, better error handling for getting tag and commit IDs
* Fix to getting commit ID
* Fix to getting commit ID
* Fix to getting commit ID
* Fix to getting commit ID
* Supports tags when comparing commits or branches
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Hide headline when only comparing and don't load unused data
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Merges compare logics to allow comparing branches, commits and tags with eachother
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Display branch or tag instead of commit when used for comparing
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Show pull request form after click on button
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Transfers relevant pull.go changes from master to compare.go
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Fixes error when comparing forks against a commit or tag
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Removes console.log from JavaScript file
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Show icon next to commit reference when comparing branch or tag
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Updates css file
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Fixes import order
* Renames template variable
* Update routers/repo/compare.go
Co-Authored-By: zeripath <art27@cantab.net>
* Update from master
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Allow short-shas in compare
* Renames prInfo to compareInfo
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Check PR permissions only if compare is pull request
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Adjusts comment
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Use compareInfo instead of prInfo
Use combination of url.Parse and regex to parse refURL rather than by
hand with indexes & attempt to check if refURL is from same instance and
adjust output to match.
Also now return empty string instead of our original
guess at URL if we are unable to parse it.
Fixes#1526
* Show git-notes
* Make git-notes heading text localizable
* Refactor git-notes data fetching to a separate function
* Display the author and time of git notes
* Move note bubble inside the commit bubble
* Revert "Move note bubble inside the commit bubble"
This reverts commit c0951fe0e3.
* Add test for git-notes
* testing ui
* Polish CSS
* Apply suggestions from code review
Co-Authored-By: Lauris BH <lauris@nix.lv>
* Add options to git.Clone to make it more capable
* Begin the process of removing the local copy and tidy up
* Remove Wiki LocalCopy Checkouts
* Remove the last LocalRepo helpers
* Remove WithTemporaryFile
* Enable push-hooks for these routes
* Ensure tests cope with hooks
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Remove Repository.LocalCopyPath()
* Move temporary repo to use the standard temporary path
* Fix the tests
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Remove LocalWikiPath
* Fix missing remove
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Use AppURL for Oauth user link (#6894)
* Use AppURL for Oauth user link
Fix#6843
* Update oauth.go
* Update oauth.go
* internal/ssh: ignore env command totally (#6825)
* ssh: ignore env command totally
* Remove commented code
Needed fix described in issue #6889
* Escape the commit message on issues update and title in telegram hook (#6901)
* update sdk to latest (#6903)
* improve description of branch protection (fix#6886) (#6906)
The branch protection description text were not quite accurate.
* Fix logging documentation (#6904)
* ENABLE_MACARON_REDIRECT should be REDIRECT_MACARON_LOG
* Allow DISABLE_ROUTER_LOG to be set in the [log] section
* [skip ci] Updated translations via Crowdin
* Move sdk structs to modules/structs (#6905)
* move sdk structs to moduels/structs
* fix tests
* fix fmt
* fix swagger
* fix vendor
* Call Git API to determine divergence of a branch and its base branch
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Show commit divergance in branch list
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Adds missing comment
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Adds test for diverging commits
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Try comparing commits instead of branches
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Removes test as CI can't run it
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Adjusts signature of percentage function to allow providing multiple integers as numerator
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Moves CountDivergingCommits function into repofiles module
Signed-off-by: Mario Lubenka <mario.lubenka@googlemail.com>
* Allow git.GetTree to take both commit and tree names, return full paths on entries listed through Tree.ListEntriesRecursive
Signed-off-by: Filip Navara <filip.navara@gmail.com>
* Fix the SHA returned on Git Tree APIs called with commit hash or symbolic name
Signed-off-by: Filip Navara <filip.navara@gmail.com>
Ensures correctly traversing the commit graph for all path and avoids
erroneously skipping some. Also preallocate some arrays to correct size
to prevent unnecessary reallocations.
Fixes#6708.
Signed-off-by: Filip Navara <filip.navara@gmail.com>
* Fix flaw in the commit history lookup that caused unnecessary traversal
when the repository contains a lot of merge commits.
Also return the merge commit as the changed one if the file or
directory was changed as part of the merge, eg. through conflict
resolution.
Signed-off-by: Filip Navara <filip.navara@gmail.com>
* Perform history simplification. If a file is present on multiple parents
in a merge commit follow only the first parent.
* Use go-git for tree reading and commit info lookup.
Signed-off-by: Filip Navara <navara@emclient.com>
* Use TreeEntry.IsRegular() instead of ObjectType that was removed.
Signed-off-by: Filip Navara <navara@emclient.com>
* Use the treePath to optimize commit info search.
Signed-off-by: Filip Navara <navara@emclient.com>
* Extract the latest commit at treePath along with the other commits.
Signed-off-by: Filip Navara <navara@emclient.com>
* Fix listing commit info for a directory that was created in one commit and never modified after.
Signed-off-by: Filip Navara <navara@emclient.com>
* Avoid nearly all external 'git' invocations when doing directory listing (.editorconfig code path is still hit).
Signed-off-by: Filip Navara <navara@emclient.com>
* Use go-git for reading blobs.
Signed-off-by: Filip Navara <navara@emclient.com>
* Make SHA1 type alias for plumbing.Hash in go-git.
Signed-off-by: Filip Navara <navara@emclient.com>
* Make Signature type alias for object.Signature in go-git.
Signed-off-by: Filip Navara <navara@emclient.com>
* Fix GetCommitsInfo for repository with only one commit.
Signed-off-by: Filip Navara <navara@emclient.com>
* Fix PGP signature verification.
Signed-off-by: Filip Navara <navara@emclient.com>
* Fix issues with walking commit graph across merges.
Signed-off-by: Filip Navara <navara@emclient.com>
* Fix typo in condition.
Signed-off-by: Filip Navara <navara@emclient.com>
* Speed up loading branch list by keeping the repository reference (and thus all the loaded packfile indexes).
Signed-off-by: Filip Navara <navara@emclient.com>
* Fix lising submodules.
Signed-off-by: Filip Navara <navara@emclient.com>
* Fix build
Signed-off-by: Filip Navara <navara@emclient.com>
* Add back commit cache because of name-rev
Signed-off-by: Filip Navara <navara@emclient.com>
* Fix tests
Signed-off-by: Filip Navara <navara@emclient.com>
* Fix code style
* Fix spelling
* Address PR feedback
Signed-off-by: Filip Navara <navara@emclient.com>
* Update vendor module list
Signed-off-by: Filip Navara <navara@emclient.com>
* Fix getting trees by commit id
Signed-off-by: Filip Navara <navara@emclient.com>
* Fix remaining unit test failures
* Fix GetTreeBySHA
* Avoid running `git name-rev` if not necessary
Signed-off-by: Filip Navara <navara@emclient.com>
* Move Branch code to git module
* Clean up GPG signature verification and fix it for tagged commits
* Address PR feedback (import formatting, copyright headers)
* Make blob lookup by SHA working
* Update tests to use public API
* Allow getting content from any type of object through the blob interface
* Change test to actually expect the object content that is in the GIT repository
* Change one more test to actually expect the object content that is in the GIT repository
* Add comments
* Pre-caculate the absolute path of git
* Do not repeat string literals which has been defined somewhere
Also make it flexible to accept customized/user-defined value.
* Support searching commits with prefix syntax
For now, support auther: committer:
When more than one prefix is supplied is presented, the result is the union.
When different prefixes are supplied, the result is the intersection.
For example,
"author:alice author:bob"
=> the result is all commits authored by Alice OR Bob
"hello committer:alice"
=> the result is all commits committed by Alice AND has the keyword
'hello' in the message.
Note that there should NOT have any space after the colon(:) of the prefix.
For example,
"author:bill" => correct
"author: bill" => wrong
* Remove unneeded logging
* Add missing files of test repository
* Add missing repo_unit entries to test fixtures
* Update test cases
* Add tooltip for commits search button
* Update tooltip text
I have no idea about how to format it with line breaks.
* Make the usage example more real
* Add a test case
* Add new options struct for SearchCommits
* Prefer len(s) > 0 over s != ""
* Add NewSearchCommitsOptions
