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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

Breaking changes

  • The ui.oplog-relative-timestamps option has been removed. Use the format_time_range() template alias instead. For details, see the documentation.

  • Implicit concatenation of template expressions has been disabled. Use ++ operator, concat(), or separate() function instead. Example: description ++ "\n"

  • jj git push will consider pushing the parent commit only when the current commit has no content and no description, such as right after a jj squash.

  • The minimum supported Rust version (MSRV) is now 1.64.0.

  • The heads() revset function was split up into two functions. heads() without arguments is now called visible_heads(). heads() with one argument is unchanged.

  • The ui.default-revset config was renamed to revsets.log.

  • The jj sparse command was split up into jj sparse list and jj sparse set.

  • jj hide (alias for jj abandon) is no longer available. Use jj abandon instead.

  • jj debug completion, jj debug mangen and jj debug config-schema have been moved from jj debug to jj util.

  • jj will no longer parse br as a git_ref refs/heads/br when a branch br does not exist but the git_ref does (this is rare). Use br@git instead.

New features

  • jj git push --deleted will remove all locally deleted branches from the remote.

  • jj restore without --from works correctly even if @ is a merge commit.

  • jj rebase now accepts multiple -s and -b arguments. Revsets with multiple commits are allowed with --allow-large-revsets.

  • jj git fetch now supports a --branch argument to fetch some of the branches only.

  • jj config get command allows retrieving config values for use in scripting.

  • jj config set command allows simple config edits like jj config set --repo user.email "somebody@example.com"

  • Added ui.log-word-wrap option to wrap jj log/obslog/op log content based on terminal width. #1043

  • Nodes in the (text-based) graphical log output now use a ◉ symbol instead of the letter o. The ASCII-based graph styles still use o.

  • Commands that accept a diff format (jj diff, jj interdiff, jj show, jj log, and jj obslog) now accept --types to show only the type of file before and after.

  • jj describe now supports --reset-author for resetting a commit's author to the configured user. jj describe also gained a --no-edit option to avoid opening the editor.

  • Added latest(x[, n]) revset function to select the latest n commits.

  • Added conflict() revset function to select commits with conflicts.

  • jj squash AKA jj amend now accepts a --message option to set the description of the squashed commit on the command-line.

  • The progress display on jj git clone/fetch now includes the downloaded size.

  • The formatter now supports a "default" color that can override another color defined by a parent style.

  • jj obslog and jj log now show abandoned commits as hidden.

  • jj git fetch and jj git push will now use the single defined remote even if it is not named "origin".

  • jj git push now accepts --branch and --change arguments together.

  • jj git push now accepts a -r/--revisions flag to specify revisions to push. All branches pointing to any of the specified revisions will be pushed. The flag can be used together with --branch and --change.

  • jj with no subcommand now defaults to jj log instead of showing help. This command can be overridden by setting ui.default-command.

  • Description tempfiles created via jj describe now have the file extension .jjdescription to help external tooling detect a unique filetype.

  • The shortest unique change ID prefixes and commit ID prefixes in jj log are now shorter within the default log revset. You can override the default by setting the revsets.short-prefixes config to a different revset.

  • The last seen state of branches in the underlying git repo is now presented by jj branch list as a remote called git (e.g. main@git). They can also be referenced in revsets. Such branches exist in colocated repos or if you use jj git export.

  • The new jj chmod command allows setting or removing the executable bit on paths. Unlike the POSIX chmod, it works on Windows, on conflicted files, and on arbitrary revisions. Bits other than the executable bit are not planned to be supported.

Fixed bugs

  • Modify/delete conflicts now include context lines #1244.

  • It is now possible to modify either side of a modify/delete conflict (any change used to be considered a resolution).

  • Fixed a bug that could get partially resolved conflicts to be interpreted incorrectly.

  • jj git fetch: when re-adding a remote repository that had been previously removed, in some situations the remote branches were not recreated.

  • jj git remote rename: the git remote references were not rewritten with the new name. If a new remote with the old name and containing the same branches was added, the remote branches may not be recreated in some cases.

  • jj workspace update-stale now snapshots the working-copy changes before updating to the new working-copy commit.

  • It is no longer allowed to create branches at the root commit.

  • git checkout (without using jj) in colocated repo no longer abandons the previously checked-out anonymous branch. #1042.

  • jj git fetch in a colocated repo now abandons branches deleted on the remote, just like in a non-colocated repo. #864

  • It is now possible to jj branch forget deleted branches. #1537

  • Fixed race condition when assigning change id to Git commit. If you've already had unreachable change ids, run jj debug reindex. #924

  • Fixed false divergence on racy working-copy snapshots. #697, #1608

[0.7.0] - 2023-02-16

Breaking changes

  • The minimum supported Rust version (MSRV) is now 1.61.0.

  • The jj touchup command was renamed to jj diffedit.

  • The -i option to jj restore was removed in favor of new --from/--to options to jj diffedit.

  • To report the situation when a change id corresponds to multiple visible commits, jj log now prints the change id in red and puts ?? after it. Previously, it printed the word "divergent".

  • jj log prefixes commit descriptions with "(empty)" when they contain no change compared to their parents.

  • The author/committer templates now display both name and email. Use author.name()/committer.name() to extract the name.

  • Storage of the "HEAD@git" reference changed and can now have conflicts. Operations written by a new jj binary will have a "HEAD@git" reference that is not visible to older binaries.

  • The description template keyword is now empty if no description set. Use if(description, description, "(no description set)\n") to get back the previous behavior.

  • The template.log.graph and template.commit_summary config keys were renamed to templates.log and templates.commit_summary respectively.

  • If a custom templates.log template is set, working-copy commit will no longer be highlighted automatically. Wrap your template with label(if(current_working_copy, "working_copy"), ...) to label the working-copy entry.

  • The ui.relative-timestamps option has been removed. Use the format_timestamp() template alias instead. For details on showing relative timestamps in jj log and jj show, see the documentation.

  • jj op log now shows relative timestamps by default. To disable, set ui.oplog-relative-timestamps to false.

  • The global --no-commit-working-copy is now called --ignore-working-copy.

  • The diff.format config option is now called ui.diff.format. The old name is still supported for now.

  • merge-tools.<name>.edit-args now requires $left/$right parameters. The default is edit-args = ["$left", "$right"].

  • The builtin jj update and jj up aliases for jj checkout have been deleted.

  • Change IDs are now rendered using letters from the end of the alphabet (from 'z' through 'k') instead of the usual hex digits ('0' through '9' and 'a' through 'f'). This is to clarify the distinction between change IDs and commit IDs, and to allow more efficient lookup of unique prefixes. This change doesn't affect the storage format; existing repositories will remain usable.

New features

  • The default log format now uses the committer timestamp instead of the author timestamp.

  • jj log --summary --patch now shows both summary and diff outputs.

  • jj git push now accepts multiple --branch/--change arguments

  • jj config list command prints values from config and config edit opens the config in an editor.

  • jj debug config-schema command prints out JSON schema for the jj TOML config file format.

  • jj resolve --list can now describe the complexity of conflicts.

  • jj resolve now notifies the user of remaining conflicts, if any, on success. This can be prevented by the new --quiet option.

  • Per-repository configuration is now read from .jj/repo/config.toml.

  • Background colors, bold text, and underlining are now supported. You can set e.g. color.error = { bg = "red", bold = true, underline = true } in your ~/.jjconfig.toml.

  • The empty condition in templates is true when the commit makes no change to the three compared to its parents.

  • branches([needle]) revset function now takes needle as an optional argument and matches just the branches whose name contains needle.

  • remote_branches([branch_needle[, remote_needle]]) now takes branch_needle and remote_needle as optional arguments and matches just the branches whose name contains branch_needle and remote contains remote_needle.

  • jj git fetch accepts repeated --remote arguments.

  • Default remotes can be configured for the jj git fetch and jj git push operations ("origin" by default) using the git.fetch and git.push configuration entries. git.fetch can be a list if multiple remotes must be fetched from.

  • jj duplicate can now duplicate multiple changes in one go. This preserves any parent-child relationships between them. For example, the entire tree of descendants of abc can be duplicated with jj duplicate abc:.

  • jj log now highlights the shortest unique prefix of every commit and change id and shows the rest in gray. To customize the length and style, use the format_short_id() template alias. For details, see the documentation.

  • jj print was renamed to jj cat. jj print remains as an alias.

  • In content that goes to the terminal, the ANSI escape byte (0x1b) is replaced by a "␛" character. That prevents them from interfering with the ANSI escapes jj itself writes.

  • jj workspace root prints the root path of the current workspace.

  • The [alias] config section was renamed to [aliases]. The old name is still accepted for backwards compatibility for some time.

  • Commands that draw an ASCII graph (jj log, jj op log, jj obslog) now have different styles available by setting e.g. ui.graph.style = "curved".

  • jj split accepts creating empty commits when given a path. jj split . inserts an empty commit between the target commit and its children if any, and jj split any-non-existent-path inserts an empty commit between the target commit and its parents.

  • Command arguments to ui.diff-editor/ui.merge-editor can now be specified inline without referring to [merge-tools] table.

  • jj rebase now accepts a new --allow-large-revsets argument that allows the revset in the -d argument to expand to several revisions. For example, jj rebase -s B -d B- -d C now works even if B is a merge commit.

  • jj new now also accepts a --allow-large-revsets argument that behaves similarly to jj rebase --allow-large-revsets.

  • jj new --insert-before inserts the new commit between the target commit and its parents.

  • jj new --insert-after inserts the new commit between the target commit and its children.

  • author/committer templates now support .username(), which leaves out the domain information of .email().

  • It is now possible to change the author format of jj log with the format_short_signature() template alias. For details, see the documentation.

  • Added support for template aliases. New symbols and functions can be configured by template-aliases.<name> = <expression>. Be aware that the template syntax isn't documented yet and is likely to change.

  • The ui.diff-instructions config setting can be set to false to inhibit the creation of the JJ-INSTRUCTIONS file as part of diff editing.

Fixed bugs

  • When sharing the working copy with a Git repo, we used to forget to export branches to Git when only the working copy had changed. That's now fixed.

  • Commit description set by -m/--message is now terminated with a newline character, just like descriptions set by editor are.

  • The -R/--repository path must be a valid workspace directory. Its ancestor directories are no longer searched.

  • Fixed a crash when trying to access a commit that's never been imported into the jj repo from a Git repo. They will now be considered as non-existent if referenced explicitly instead of crashing.

  • Fixed handling of escaped characters in .gitignore (only keep trailing spaces if escaped properly).

  • jj undo now works after jj duplicate.

  • jj duplicate followed by jj rebase of a tree containing both the original and duplicate commit no longer crashes. The fix should also resolve any remaining instances of https://github.com/martinvonz/jj/issues/27.

  • Fix the output of jj debug completion --help by reversing fish and zsh text.

  • Fixed edge case in jj git fetch when a pruned branch is a prefix of another branch.

Contributors

Thanks to the people who made this release happen!

  • Aleksandr Mikhailov (@AM5800)
  • Augie Fackler (@durin42)
  • Benjamin Saunders (@Ralith)
  • Daniel Ploch (@torquestomp)
  • Danny Hooper (@hooper)
  • David Barnett (@dbarnett)
  • Glen Choo (@chooglen)
  • Herby Gillot (@herbygillot)
  • Ilya Grigoriev (@ilyagr)
  • Luke Granger-Brown (@lukegb)
  • Martin von Zweigbergk (@martinvonz)
  • Michael Forster (@MForster)
  • Philip Metzger (@PhilipMetzger)
  • Ruben Slabbert (@rslabbert)
  • Samuel Tardieu (@samueltardieu)
  • Tal Pressman (@talpr)
  • Vamsi Avula (@avamsi)
  • Waleed Khan (@arxanas)
  • Yuya Nishihara (@yuja)

[0.6.1] - 2022-12-05

No changes, only changed to a released version of the thrift crate dependency.

[0.6.0] - 2022-12-05

Breaking changes

  • Dropped candidates set argument from description(needle), author(needle), committer(needle), merges() revsets. Use x & description(needle) instead.

  • Adjusted precedence of revset union/intersection/difference operators. x | y & z is now equivalent to x | (y & z).

  • Support for open commits has been dropped. The ui.enable-open-commits config that was added in 0.5.0 is no longer respected. The jj open/close commands have been deleted.

  • jj commit is now a separate command from jj close (which no longer exists). The behavior has changed slightly. It now always asks for a description, even if there already was a description set. It now also only works on the working-copy commit (there's no -r argument).

  • If a workspace's working-copy commit has been updated from another workspace, most commands in that workspace will now fail. Use the new jj workspace update-stale command to update the workspace to the new working-copy commit. (The old behavior was to automatically update the workspace.)

New features

  • Commands with long output are paginated. #9

  • The new jj git remote rename command allows git remotes to be renamed in-place.

  • The new jj resolve command allows resolving simple conflicts with an external 3-way-merge tool.

  • jj git push will search @- for branches to push if @ has none.

  • The new revset function file(pattern..) finds commits modifying the paths specified by the pattern...

  • The new revset function empty() finds commits modifying no files.

  • Added support for revset aliases. New symbols and functions can be configured by revset-aliases.<name> = <expression>.

  • It is now possible to specify configuration options on the command line with the new --config-toml global option.

  • jj git subcommands will prompt for credentials when required for HTTPS remotes rather than failing. #469

  • Branches that have a different target on some remote than they do locally are now indicated by an asterisk suffix (e.g. main*) in jj log. #254

  • The commit ID was moved from first on the line in jj log output to close to the end. The goal is to encourage users to use the change ID instead, since that is generally more convenient, and it reduces the risk of creating divergent commits.

  • The username and hostname that appear in the operation log are now configurable via config options operation.username and operation.hostname.

  • jj git subcommands now support credential helpers.

  • jj log will warn if it appears that the provided path was meant to be a revset.

  • The new global flag -v/--verbose will turn on debug logging to give some additional insight into what is happening behind the scenes. Note: This is not comprehensively supported by all operations yet.

  • jj log, jj show, and jj obslog now all support showing relative timestamps by setting ui.relative-timestamps = true in the config file.

Fixed bugs

  • A bug in the export of branches to Git caused spurious conflicted branches. This typically occurred when running in a working copy colocated with Git (created by running jj init --git-dir=.). #463

  • When exporting branches to Git, we used to fail if some branches could not be exported (e.g. because Git doesn't allow a branch called main and another branch called main/sub). We now print a warning about these branches instead. #493

  • If you had modified branches in jj and also modified branches in conflicting ways in Git, jj git export used to overwrite the changes you made in Git. We now print a warning about these branches instead.

  • jj edit root now fails gracefully.

  • jj git import used to abandon a commit if Git branches and tags referring to it were removed. We now keep it if a detached HEAD refers to it.

  • jj git import no longer crashes when all Git refs are removed.

  • Git submodules are now ignored completely. Earlier, files present in the submodule directory in the working copy would become added (tracked), and later removed if you checked out another commit. You can now use git to populate the submodule directory and jj will leave it alone.

  • Git's GC could remove commits that were referenced from jj in some cases. We are now better at adding Git refs to prevent that. #815

  • When the working-copy commit was a merge, jj status would list only the first parent, and the diff summary would be against that parent. The output now lists all parents and the diff summary is against the auto-merged parents.

Contributors

Thanks to the people who made this release happen!

  • Martin von Zweigbergk (@martinvonz)
  • Benjamin Saunders (@Ralith)
  • Yuya Nishihara (@yuja)
  • Glen Choo (@chooglen)
  • Ilya Grigoriev (@ilyagr)
  • Ruben Slabbert (@rslabbert)
  • Waleed Khan (@arxanas)
  • Sean E. Russell (@xxxserxxx)
  • Pranay Sashank (@pranaysashank)
  • Luke Granger-Brown (@lukegb)

[0.5.1] - 2022-10-17

No changes (just trying to get automated GitHub release to work).

[0.5.0] - 2022-10-17

Breaking changes

  • Open commits are now disabled by default. That means that jj checkout will always create a new change on top of the specified commit and will let you edit that in the working copy. Set ui.enable-open-commits = true to restore the old behavior and let us know that you did so we know how many people prefer the workflow with open commits.

  • jj [op] undo and jj op restore used to take the operation to undo or restore to as an argument to -o/--operation. It is now a positional argument instead (i.e. jj undo -o abc123 is now written jj undo abc123).

  • An alias that is not configured as a string list (e.g. my-status = "status" instead of my-status = ["status"]) is now an error instead of a warning.

  • jj log now defaults to showing only commits that are not on any remote branches (plus their closest commit on the remote branch for context). This set of commits can be overridden by setting ui.default-revset. Use jj log -r 'all()' for the old behavior. Read more about revsets here. #250

  • jj new now always checks out the new commit (used to be only if the parent was @).

  • jj merge now checks out the new commit. The command now behaves exactly like jj new, except that it requires at least two arguments.

  • When the working-copy commit is abandoned by jj abandon and the parent commit is open, a new working-copy commit will be created on top (the open parent commit used to get checked out).

  • jj branch now uses subcommands like jj branch create and jj branch forget instead of options like jj branch --forget. #330

  • The $NO_COLOR environment variable no longer overrides the ui.color configuration if explicitly set.

  • jj edit has been renamed to jj touchup, and jj edit is now a new command with different behavior. The new jj edit lets you edit a commit in the working copy, even if the specified commit is closed.

  • jj git push no longer aborts if you attempt to push an open commit (but it now aborts if a commit does not have a description).

  • jj git push now pushes only branches pointing to the @ by default. Use --all to push all branches.

  • The checkouts template keyword is now called working_copies, and current_checkout is called current_working_copy.

New features

  • The new jj interdiff command compares the changes in commits, ignoring changes from intervening commits.

  • jj rebase now accepts a --branch/-b <revision> argument, which can be used instead of -r or -s to specify which commits to rebase. It will rebase the whole branch, relative to the destination. The default mode has changed from -r @ to -b @.

  • The new jj print command prints the contents of a file in a revision.

  • The new jj git remotes list command lists the configured remotes and their URLs. #243

  • jj move and jj squash now lets you limit the set of changes to move by specifying paths on the command line (in addition to the --interactive mode). For example, use jj move --to @-- foo to move the changes to file (or directory) foo in the working copy to the grandparent commit.

  • When jj move/squash/unsquash abandons the source commit because it became empty and both the source and the destination commits have non-empty descriptions, it now asks for a combined description. If either description was empty, it uses the other without asking.

  • jj split now lets you specify on the CLI which paths to include in the first commit. The interactive diff-editing is not started when you do that.

  • Sparse checkouts are now supported. In fact, all working copies are now "sparse", only to different degrees. Use the jj sparse command to manage the paths included in the sparse checkout.

  • Configuration is now also read from ~/.jjconfig.toml.

  • The $JJ_CONFIG environment variable can now point to a directory. If it does, all files in the directory will be read, in alphabetical order.

  • The $VISUAL environment is now respected and overrides $EDITOR. The new ui.editor config has higher priority than both of them. There is also a new $JJ_EDITOR environment variable, which has even higher priority than the config.

  • You can now use - and + in revset symbols. You used to have to quote branch names like my-feature in nested quotes (outer layer for your shell) like jj co '"my-feature"'. The quoting is no longer needed.

  • The new revset function connected(x) is the same as x:x.

  • The new revset function roots(x) finds commits in the set that are not descendants of other commits in the set.

  • ssh-agent is now detected even if $SSH_AGENT_PID is not set (as long as $SSH_AUTH_SOCK is set). This should help at least macOS users where ssh-agent is launched by default and only $SSH_AUTH_SOCK is set.

  • When importing from a git, any commits that are no longer referenced on the git side will now be abandoned on the jj side as well. That means that jj git fetch will now abandon unreferenced commits and rebase any local changes you had on top.

  • jj git push gained a --change <revision> argument. When that's used, it will create a branch named after the revision's change ID, so you don't have to create a branch yourself. By default, the branch name will start with push-, but this can be overridden by the push.branch-prefix config setting.

  • jj git push now aborts if you attempt to push a commit without a description or with the placeholder "(no name/email configured)" values for author/committer.

  • Diff editor command arguments can now be specified by config file. Example:

    [merge-tools.kdiff3]
program = "kdiff3"
edit-args = ["--merge", "--cs", "CreateBakFiles=0"]

  • jj branch can accept any number of branches to update, rather than just one.

  • Aliases can now call other aliases.

  • jj log now accepts a --reversed option, which will show older commits first.

  • jj log now accepts file paths.

  • jj obslog now accepts -p/--patch option, which will show the diff compared to the previous version of the change.

  • The "(no name/email configured)" placeholder value for name/email will now be replaced if once you modify a commit after having configured your name/email.

  • Color setting can now be overridden by --color=always|never|auto option.

  • jj checkout now lets you specify a description with --message/-m.

  • jj new can now be used for creating merge commits. If you pass more than one argument to it, the new commit will have all of them as parents.

Fixed bugs

  • When rebasing a conflict where one side modified a file and the other side deleted it, we no longer automatically resolve it in favor of the modified content (this was a regression from commit c0ae4b16e8).

  • Errors are now printed to stderr (they used to be printed to stdout).

  • Updating the working copy to a commit where a file's executable bit changed but the contents was the same used to lead to a crash. That has now been fixed.

  • If one side of a merge modified a directory and the other side deleted it, it used to be considered a conflict. The same was true if both sides added a directory with different files in. They are now merged as if the missing directory had been empty.

  • When using jj move to move part of a commit into an ancestor, any branches pointing to the source commit used to be left on a hidden intermediate commit. They are now correctly updated.

  • jj untrack now requires at least one path (allowing no arguments was a UX bug).

  • jj rebase now requires at least one destination (allowing no arguments was a UX bug).

  • jj restore --to <rev> now restores from the working copy (it used to restore from the working copy's parent).

  • You now get a proper error message instead of a crash when $EDITOR doesn't exist or exits with an error.

  • Global arguments, such as --at-op=<operation>, can now be passed before an alias.

  • Fixed relative path to the current directory in output to be . instead of empty string.

  • When adding a new workspace, the parent of the current workspace's current checkout will be checked out. That was always the intent, but the root commit was accidentally checked out instead.

  • When checking out a commit, the previous commit is no longer abandoned if it has a non-empty description.

  • All commands now consistently snapshot the working copy (it was missing from e.g. jj undo and jj merge before).

[0.4.0] - 2022-04-02

Breaking changes

  • Dropped support for config in ~/.jjconfig. Your configuration is now read from <config dir>/jj/config.toml, where <config dir> is ${XDG_CONFIG_HOME} or ~/.config/ on Linux, ~/Library/Application Support/ on macOS, and ~\AppData\Roaming\ on Windows.

New features

  • You can now set an environment variable called $JJ_CONFIG to a path to a config file. That will then be read instead of your regular config file. This is mostly intended for testing and scripts.

  • The standard $NO_COLOR environment variable is now respected.

  • jj new now lets you specify a description with --message/-m.

  • When you check out a commit, the old commit no longer automatically gets abandoned if it's empty and has descendants, it only gets abandoned if it's empty and does not have descendants.

  • When undoing an earlier operation, any new commits on top of commits from the undone operation will be rebased away. For example, let's say you rebase commit A so it becomes a new commit A', and then you create commit B on top of A'. If you now undo the rebase operation, commit B will be rebased to be on top of A instead. The same logic is used if the repo was modified by concurrent operations (so if one operation added B on top of A, and one operation rebased A as A', then B would be automatically rebased on top of A'). See #111 for more examples. #111

  • jj log now accepts -p/--patch option.

Fixed bugs

  • Fixed crash on jj init --git-repo=. (it almost always crashed).

  • When sharing the working copy with a Git repo, the automatic importing and exporting (sometimes?) didn't happen on Windows.

[0.3.3] - 2022-03-16

No changes, only trying to get the automated build to work.

[0.3.2] - 2022-03-16

No changes, only trying to get the automated build to work.

[0.3.1] - 2022-03-13

Fixed bugs

  • Fixed crash when core.excludesFile pointed to nonexistent file, and made leading ~/ in that config expand to $HOME/ #131

[0.3.0] - 2022-03-12

Last release before this changelog started.