libgit2 v1.8.0

[ethomson]

v1.8

This is release v1.8.0, "Das Fliegende Klassenzimmer". This release includes optional, experimental support for invoking OpenSSH to fetch and push, an easier mechanism to perform the default behavior of git commit, and has many improvements for worktrees. This release also includes many other new features and bugfixes.

Major changes

• Executable SSH (OpenSSH) support
  libgit2 can now invoke the command-line OpenSSH to fetch from and push to remotes over SSH. This support takes the place of libssh2 support. To use it, configure libgit2 with cmake -DUSE_SSH=exec, and please report any problems that you discover. By @ethomson in Add OpenSSH support #6617

• Simplified commit creation
  The git_commit_create_from_stage API was introduced to allow users to better emulate the behavior of git commit without needing to provide unnecessary information. The current state of the index is committed to the current branch. By @ethomson in commit: introduce git_commit_create_from_stage #6716

• Worktree improvements
  A number of worktree improvements have been made for better compatibility with core git. First, libgit2 now understands per-worktree references, thanks to @csware in Make refdb_fs (hopefully) fully aware of per worktree refs #6387. Worktree-specific configuration is now supported, thanks to @vermiculus in Support the extension for worktree-specific config #6202. And improved compatibility with git worktree add is now supported, thanks to @herrerog in worktree: mimic 'git worktree add' behavior. #5319.

Breaking changes

• Adding WORKTREE configuration level (ABI breaking change)
  To support worktree configurations at the appropriate level (higher priority than local configuration, but lower priority than app-specific configuration), the GIT_CONFIG_LEVEL_WORKTREE level was introduced at priority 6. GIT_CONFIG_LEVEL_APP now begins at priority 7.

• Changes to git_config_entry (ABI breaking change) The git_config_entry structure now contains information about the backend_type and origin_path. The unused payload value has been removed.

• git_push_options includes remote push options (ABI breaking change)
  The git_push_options structure now contains a value for remote push options.

Other changes

New features

• config: provide an "origin" for config entries by @ethomson in config: provide an "origin" for config entries #6615
• cli: add a git config command by @ethomson in cli: add a git config command #6616
• Add OpenSSH support by @ethomson in Add OpenSSH support #6617
• remote: optionally report unchanged tips by @ethomson in remote: optionally report unchanged tips #6645
• Support setting oid type for in-memory repositories by @kcsaul in Support setting oid type for in-memory repositories #6671
• cli: add index-pack command by @ethomson in cli: add index-pack command #6681
• Add git_repository_commit_parents to identify the parents of the next commit given the repository state by @ethomson in Add git_repository_commit_parents to identify the parents of the next commit given the repository state #6707
• commit: introduce git_commit_create_from_stage by @ethomson in commit: introduce git_commit_create_from_stage #6716
• set SSH timeout by @vafada in set SSH timeout #6721
• Implement push options on push by @russell in Implement push options on push #6439
• Support index.skipHash true config by @parnic in Support index.skipHash true config #6738
• worktree: mimic 'git worktree add' behavior. by @herrerog in worktree: mimic 'git worktree add' behavior. #5319
• Support the extension for worktree-specific config by @vermiculus in Support the extension for worktree-specific config #6202
• Separate config reader and writer backend priorities (for worktree configs) by @ethomson in Separate config reader and writer backend priorities (for worktree configs) #6756
• fetch: enable deepening/shortening shallow clones by @kempniu in fetch: enable deepening/shortening shallow clones #6662

Bug fixes

• repository: make cleanup safe for re-use with grafts by @carlosmn in repository: make cleanup safe for re-use with grafts #6600
• fix: Add missing include for oidarray. by @dvzrv in fix: Add missing include for oidarray. #6608
• ssh: fix known_hosts leak in _git_ssh_setup_conn by @steven9724 in ssh: fix known_hosts leak in _git_ssh_setup_conn #6599
• proxy: Return an error for invalid proxy URLs instead of crashing. by @lrm29 in proxy: Return an error for invalid proxy URLs instead of crashing. #6597
• errors: refactoring - never return NULL in git_error_last() by @ethomson in errors: refactoring - never return NULL in git_error_last() #6625
• Reject potential option injections over ssh by @carlosmn in Reject potential option injections over ssh #6636
• remote: fix memory leak in git_remote_download() by @7Ji in remote: fix memory leak in git_remote_download() #6651
• git2: Fix crash when called w/o parameters by @csware in git2: Fix crash when called w/o parameters #6673
• Avoid macro redefinition of ENABLE_INTSAFE_SIGNED_FUNCTIONS by @csware in Avoid macro redefinition of ENABLE_INTSAFE_SIGNED_FUNCTIONS #6666
• util: suppress some uninitialized variable warnings by @boretrk in util: suppress some uninitialized variable warnings #6659
• fetch: enable deepening/shortening shallow clones by @kempniu in fetch: enable deepening/shortening shallow clones #6662
• push: set generic error in push_negotiation cb by @ethomson in push: set generic error in push_negotiation cb #6675
• process: test /usr/bin/false on BSDs by @ethomson in process: test /usr/bin/false on BSDs #6677
• clone: don't mix up "http://url" with "http:/url" when figuring out if we should do a local clone by @boretrk in clone: don't mix up "http://url" with "http:/url" when figuring out if we should do a local clone #6361
• Several compatibility fixes by @ethomson in Several compatibility fixes #6678
• Git blame buffer gives the wrong result in many cases where there are… by @thosey in Git blame buffer gives the wrong result in many cases where there are… #6572
• Fix 'path cannot exist in repository' during diff for in-memory repository by @kcsaul in Fix 'path cannot exist in repository' during diff for in-memory repository #6683
• process: don't try to close the status by @ethomson in process: don't try to close the status #6693
• Minor bug fixes by @ethomson in Minor bug fixes #6695
• Bypass shallow clone support for in-memory repositories by @kcsaul in Bypass shallow clone support for in-memory repositories #6684
• examples: use unsigned int for bitfields by @ethomson in examples: use unsigned int for bitfields #6699
• Fix some bugs caught by UBscan by @ethomson in Fix some bugs caught by UBscan #6700
• git_diff_find_similar doesn't always remove unmodified deltas by @yori in git_diff_find_similar doesn't always remove unmodified deltas #6642
• httpclient: clear client->parser.data after use by @ethomson in httpclient: clear client->parser.data after use #6705
• Do not normalize safe.directory paths by @csware in Do not normalize safe.directory paths #6668
• clone: don't swallow error in should_checkout by @ethomson in clone: don't swallow error in should_checkout #6727
• Correct index add directory/file conflict detection by @ethomson in Correct index add directory/file conflict detection #6729
• Correct git_revparse_single and add revparse fuzzing by @ethomson in Correct git_revparse_single and add revparse fuzzing #6730
• config: properly delete or rename section containing multivars by @samueltardieu in config: properly delete or rename section containing multivars #6723
• revparse: ensure bare '@' is truly bare by @ethomson in revparse: ensure bare '@' is truly bare #6742
• repo: ensure we can initialize win32 paths by @ethomson in repo: ensure we can initialize win32 paths #6743
• Swap GIT_DIFF_LINE_(ADD|DEL)_EOFNL to match other Diffs by @xphoniex in Swap GIT_DIFF_LINE_(ADD|DEL)_EOFNL to match other Diffs #6240
• diff: fix test for SHA256 support in diff_from_buffer by @ethomson in diff: fix test for SHA256 support in diff_from_buffer #6745
• http: support empty http.proxy config setting by @ethomson in http: support empty http.proxy config setting #6744
• More safe.directory improvements by @ethomson in More safe.directory improvements #6739
• Ensure that completely ignored diff is empty by @ethomson in Ensure that completely ignored diff is empty #5893
• Fix broken regexp that matches submodule names containing ".path" by @csware in Fix broken regexp that matches submodule names containing ".path" #6749
• Fix memory leaks by @csware in Fix memory leaks #6748
• Make refdb_fs (hopefully) fully aware of per worktree refs by @csware in Make refdb_fs (hopefully) fully aware of per worktree refs #6387
• fix log example by @albfan in fix log example #6359
• fetch: fail on depth for local transport by @ethomson in fetch: fail on depth for local transport #6757
• Fix message trailer parsing by @ethomson in Fix message trailer parsing #6761
• config: correct fetching the HIGHEST_LEVEL config by @ethomson in config: correct fetching the HIGHEST_LEVEL config #6766
• Avoid some API breaking changes in v1.8 by @ethomson in Avoid some API breaking changes in v1.8 #6768

Build and CI improvements

• meta: update version numbers to v1.8 by @ethomson in meta: update version numbers to v1.8 #6596
• Revert "CMake: Search for ssh2 instead of libssh2." by @ethomson in Revert "CMake: Search for ssh2 instead of libssh2." #6619
• cmake: fix openssl build on win32 by @lazka in cmake: fix openssl build on win32 #6626
• ci: retry flaky online tests by @ethomson in ci: retry flaky online tests #6628
• ci: update to macOS 12 by @ethomson in ci: update to macOS 12 #6629
• Use #!/bin/bash for script with bash-specific commands by @roehling in Use #!/bin/bash for script with bash-specific commands #6581
• ci: overwrite nonsense in /usr/local during macOS setup by @ethomson in ci: overwrite nonsense in /usr/local during macOS setup #6664
• release: add a compatibility label by @ethomson in release: add a compatibility label #6676
• actions: set permissions by @ethomson in actions: set permissions #6680
• cmake: rename FindIconv to avoid collision with cmake by @ethomson in cmake: rename FindIconv to avoid collision with cmake #6682
• ci: allow workflows to read and write packages by @ethomson in ci: allow workflows to read and write packages #6687
• ci: allow workflows to push changes by @ethomson in ci: allow workflows to push changes #6688
• tests: remove test for strcasecmp by @boretrk in tests: remove test for strcasecmp #6691
• CI fixes by @ethomson in CI fixes #6694
• ci: improvements to prepare for Cygwin support by @ethomson in ci: improvements to prepare for Cygwin support #6696
• Yet more CI improvements by @ethomson in Yet more CI improvements #6697
• Fix nightly builds by @ethomson in Fix nightly builds #6709
• Benchmarks: add a site to view results by @ethomson in Benchmarks: add a site to view results #6715
• GIT_RAND_GETENTROPY: do not include sys/random.h by @semarie in GIT_RAND_GETENTROPY: do not include sys/random.h #6736
• add dl to LIBGIT2_SYSTEM_LIBS by @christopherfujino in add dl to LIBGIT2_SYSTEM_LIBS #6631
• meta: add dependency tag to release.yml by @ethomson in meta: add dependency tag to release.yml #6740
• CI: fix our nightlies by @ethomson in CI: fix our nightlies #6751
• trace: Re-enable tests as tracing is now enabled by default by @lrm29 in trace: Re-enable tests as tracing is now enabled by default #6752
• tests: don't free an unininitialized repo by @ethomson in tests: don't free an unininitialized repo #6763
• ci: reduce ASLR randomization for TSAN by @ethomson in ci: reduce ASLR randomization for TSAN #6764
• packbuilder: adjust nondeterministic tests by @ethomson in packbuilder: adjust nondeterministic tests #6762
• Allow libgit2 to be compiled with mbedtls3. by @adamharrison in Allow libgit2 to be compiled with mbedtls3. #6759
• build: update to latest actions versions by @ethomson in build: update to latest actions versions #6765
• ctype: cast characters to unsigned when classifying characters by @boretrk in ctype: cast characters to unsigned when classifying characters #6679 and @ethomson in cast characters to unsigned when classifying characters #6770
• valgrind: suppress OpenSSL warnings by @ethomson in valgrind: suppress OpenSSL warnings #6769
• ci: split SHA256 builds out into their own workflow by @ethomson in ci: split SHA256 builds out into their own workflow #6772

Documentation improvements

• README.md: Fix link to conan packages by @lrm29 in README.md: Fix link to conan packages #6621
• README: replace gmaster with GitButler by @ethomson in README: replace gmaster with GitButler #6692
• blame example: Fix support for line range in CLI by @wetneb in blame example: Fix support for line range in CLI #6638
• Support authentication in push example by @pluehne in Support authentication in push example #5904
• docs: fix mistake in attr.h by @DavHau in docs: fix mistake in attr.h #6714
• Fix broken links by @csware in Fix broken links #6747

Platform compatibility fixes

• stransport: macOS: replace errSSLNetworkTimeout, with hard-coded value by @mascguy in stransport: macOS: replace errSSLNetworkTimeout, with hard-coded value #6610

Git compatibility fixes

• Do not trim dots from usernames by @georgthegreat in Do not trim dots from usernames #6657
• merge: fix incorrect rename detection for empty files. by @herrerog in merge: fix incorrect rename detection for empty files. #6717

Dependency updates

• zlib: upgrade bundled zlib to v1.3 by @ethomson in zlib: upgrade bundled zlib to v1.3 #6698
• ntlmclient: update to latest upstream ntlmclient by @ethomson in ntlmclient: update to latest upstream ntlmclient #6704

New Contributors

• @dvzrv made their first contribution in fix: Add missing include for oidarray. #6608
• @mascguy made their first contribution in stransport: macOS: replace errSSLNetworkTimeout, with hard-coded value #6610
• @steven9724 made their first contribution in ssh: fix known_hosts leak in _git_ssh_setup_conn #6599
• @lazka made their first contribution in cmake: fix openssl build on win32 #6626
• @roehling made their first contribution in Use #!/bin/bash for script with bash-specific commands #6581
• @7Ji made their first contribution in remote: fix memory leak in git_remote_download() #6651
• @kempniu made their first contribution in fetch: enable deepening/shortening shallow clones #6662
• @thosey made their first contribution in Git blame buffer gives the wrong result in many cases where there are… #6572
• @wetneb made their first contribution in blame example: Fix support for line range in CLI #6638
• @yori made their first contribution in git_diff_find_similar doesn't always remove unmodified deltas #6642
• @pluehne made their first contribution in Support authentication in push example #5904
• @DavHau made their first contribution in docs: fix mistake in attr.h #6714
• @vafada made their first contribution in set SSH timeout #6721
• @semarie made their first contribution in GIT_RAND_GETENTROPY: do not include sys/random.h #6736
• @christopherfujino made their first contribution in add dl to LIBGIT2_SYSTEM_LIBS #6631
• @parnic made their first contribution in Support index.skipHash true config #6738
• @samueltardieu made their first contribution in config: properly delete or rename section containing multivars #6723
• @xphoniex made their first contribution in Swap GIT_DIFF_LINE_(ADD|DEL)_EOFNL to match other Diffs #6240
• @adamharrison made their first contribution in Allow libgit2 to be compiled with mbedtls3. #6759

Full Changelog: v1.7.0...v1.8.0

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This discussion was created from the release libgit2 v1.8.0.