# Revsets Jujutsu supports a functional language for selecting a set of revisions. Expressions in this language are called "revsets" (the idea comes from [Mercurial](https://www.mercurial-scm.org/repo/hg/help/revsets)). The language consists of symbols, operators, and functions. Most `jj` commands accept a revset (or multiple). Many commands, such as `jj diff -r ` expect the revset to resolve to a single commit; it is an error to pass a revset that resolves to more than one commit (or zero commits) to such commands. The words "revisions" and "commits" are used interchangeably in this document. Most revsets search only the [visible commits](glossary.md#visible-commits). Other commits are only included if you explicitly mention them (e.g. by commit ID or a Git ref pointing to them). ## Symbols The `@` expression refers to the working copy commit in the current workspace. Use `@` to refer to the working-copy commit in another workspace. Use `@` to refer to a remote-tracking branch. A full commit ID refers to a single commit. A unique prefix of the full commit ID can also be used. It is an error to use a non-unique prefix. A full change ID refers to all visible commits with that change ID (there is typically only one visible commit with a given change ID). A unique prefix of the full change ID can also be used. It is an error to use a non-unique prefix. Use [single or double quotes][string-literals] to prevent a symbol from being interpreted as an expression. For example, `"x-"` is the symbol `x-`, not the parents of symbol `x`. Taking shell quoting into account, you may need to use something like `jj log -r '"x-"'`. [string-literals]: templates.md#string-literals ### Priority Jujutsu attempts to resolve a symbol in the following order: 1. Tag name 2. Branch name 3. Git ref 4. Commit ID or change ID ## Operators The following operators are supported. `x` and `y` below can be any revset, not only symbols. * `x-`: Parents of `x`, can be empty. * `x+`: Children of `x`, can be empty. * `x::`: Descendants of `x`, including the commits in `x` itself. Shorthand for `x::visible_heads()`. * `x..`: Revisions that are not ancestors of `x`. Shorthand for `x..visible_heads()`. * `::x`: Ancestors of `x`, including the commits in `x` itself. Shorthand for `root()::x`. * `..x`: Ancestors of `x`, including the commits in `x` itself, but excluding the root commit. Shorthand for `root()..x`. Equivalent to `::x ~ root()`. * `x::y`: Descendants of `x` that are also ancestors of `y`. Equivalent to `x:: & ::y`. This is what `git log` calls `--ancestry-path x..y`. * `x..y`: Ancestors of `y` that are not also ancestors of `x`. Equivalent to `::y ~ ::x`. This is what `git log` calls `x..y` (i.e. the same as we call it). * `::`: All visible commits in the repo. Shorthand for `root()::visible_heads()`. Equivalent to `all()`. * `..`: All visible commits in the repo, but excluding the root commit. Shorthand for `root()..visible_heads()`. Equivalent to `~root()`. * `~x`: Revisions that are not in `x`. * `x & y`: Revisions that are in both `x` and `y`. * `x ~ y`: Revisions that are in `x` but not in `y`. * `x | y`: Revisions that are in either `x` or `y` (or both). (listed in order of binding strengths) You can use parentheses to control evaluation order, such as `(x & y) | z` or `x & (y | z)`. ## Functions You can also specify revisions by using functions. Some functions take other revsets (expressions) as arguments. * `parents(x)`: Same as `x-`. * `children(x)`: Same as `x+`. * `ancestors(x[, depth])`: `ancestors(x)` is the same as `::x`. `ancestors(x, depth)` returns the ancestors of `x` limited to the given `depth`. * `descendants(x[, depth])`: `descendants(x)` is the same as `x::`. `descendants(x, depth)` returns the descendants of `x` limited to the given `depth`. * `reachable(srcs, domain)`: All commits reachable from `srcs` within `domain`, traversing all parent and child edges. * `connected(x)`: Same as `x::x`. Useful when `x` includes several commits. * `all()`: All visible commits in the repo. * `none()`: No commits. This function is rarely useful; it is provided for completeness. * `branches([pattern])`: All local branch targets. If `pattern` is specified, this selects the branches whose name match the given [string pattern](#string-patterns). For example, `branches(push)` would match the branches `push-123` and `repushed` but not the branch `main`. If a branch is in a conflicted state, all its possible targets are included. * `remote_branches([branch_pattern[, [remote=]remote_pattern]])`: All remote branch targets across all remotes. If just the `branch_pattern` is specified, the branches whose names match the given [string pattern](#string-patterns) across all remotes are selected. If both `branch_pattern` and `remote_pattern` are specified, the selection is further restricted to just the remotes whose names match `remote_pattern`. For example, `remote_branches(push, ri)` would match the branches `push-123@origin` and `repushed@private` but not `push-123@upstream` or `main@origin` or `main@upstream`. If a branch is in a conflicted state, all its possible targets are included. While Git-tracking branches can be selected by `@git`, these branches aren't included in `remote_branches()`. * `tags()`: All tag targets. If a tag is in a conflicted state, all its possible targets are included. * `git_refs()`: All Git ref targets as of the last import. If a Git ref is in a conflicted state, all its possible targets are included. * `git_head()`: The Git `HEAD` target as of the last import. Equivalent to `present(HEAD@git)`. * `visible_heads()`: All visible heads (same as `heads(all())`). * `root()`: The virtual commit that is the oldest ancestor of all other commits. * `heads(x)`: Commits in `x` that are not ancestors of other commits in `x`. Note that this is different from [Mercurial's](https://repo.mercurial-scm.org/hg/help/revsets) `heads(x)` function, which is equivalent to `x ~ x-`. * `roots(x)`: Commits in `x` that are not descendants of other commits in `x`. Note that this is different from [Mercurial's](https://repo.mercurial-scm.org/hg/help/revsets) `roots(x)` function, which is equivalent to `x ~ x+`. * `latest(x[, count])`: Latest `count` commits in `x`, based on committer timestamp. The default `count` is 1. * `merges()`: Merge commits. * `description(pattern)`: Commits that have a description matching the given [string pattern](#string-patterns). * `author(pattern)`: Commits with the author's name or email matching the given [string pattern](#string-patterns). * `mine()`: Commits where the author's email matches the email of the current user. * `committer(pattern)`: Commits with the committer's name or email matching the given [string pattern](#string-patterns). * `empty()`: Commits modifying no files. This also includes `merges()` without user modifications and `root()`. * `file(pattern[, pattern]...)`: Commits modifying paths matching one of the given [file patterns](filesets.md#file-patterns). Paths are relative to the directory `jj` was invoked from. A directory name will match all files in that directory and its subdirectories. For example, `file(foo)` will match files `foo`, `foo/bar`, `foo/bar/baz`. It will *not* match `foobar` or `bar/foo`. * `conflict()`: Commits with conflicts. * `present(x)`: Same as `x`, but evaluated to `none()` if any of the commits in `x` doesn't exist (e.g. is an unknown branch name.) * `working_copies()`: The working copy commits across all the workspaces. ## String patterns Functions that perform string matching support the following pattern syntax: * `"string"`, or `string` (the quotes are optional), or `substring:"string"`: Matches strings that contain `string`. * `exact:"string"`: Matches strings exactly equal to `string`. * `glob:"pattern"`: Matches strings with Unix-style shell [wildcard `pattern`](https://docs.rs/glob/latest/glob/struct.Pattern.html). ## Aliases New symbols and functions can be defined in the config file, by using any combination of the predefined symbols/functions and other aliases. Alias functions can be overloaded by the number of parameters. However, builtin function will be shadowed by name, and can't co-exist with aliases. For example: ```toml [revset-aliases] 'HEAD' = '@-' 'user()' = 'user("me@example.org") 'user(x)' = 'author(x) | committer(x)' ``` ### Built-in Aliases The following aliases are built-in and used for certain operations. These functions are defined as aliases in order to allow you to overwrite them as needed. See [revsets.toml](https://github.com/martinvonz/jj/blob/main/cli/src/config/revsets.toml) for a comprehensive list. * `trunk()`: Resolves to the head commit for the trunk branch of the remote named `origin` or `upstream`. The branches `main`, `master`, and `trunk` are tried. If more than one potential trunk commit exists, the newest one is chosen. If none of the branches exist, the revset evaluates to `root()`. You can [override](./config.md) this as appropriate. If you do, make sure it always resolves to exactly one commit. For example: ```toml [revset-aliases] 'trunk()' = 'your-branch@your-remote' ``` * `immutable_heads()`: Resolves to `trunk() | tags()` by default. See [here](config.md#set-of-immutable-commits) for details. * `immutable()`: The set of commits that `jj` treats as immutable. This is equivalent to `::(immutable_heads() | root())`. Note that modifying this will *not* change whether a commit is immutable. To do that, edit `immutable_heads()`. * `mutable()`: The set of commits that `jj` treats as mutable. This is equivalent to `~immutable()`. Note that modifying this will *not* change whether a commit is immutable. To do that, edit `immutable_heads()`. ## The `all:` modifier Certain commands (such as `jj rebase`) can take multiple revset arguments, and each of these may resolve to one-or-many revisions. By default, `jj` will not allow revsets that resolve to more than one revision — a so-called "large revset" — and will ask you to confirm that you want to proceed by prefixing it with the `all:` modifier. If you set the `ui.always-allow-large-revsets` option to `true`, `jj` will behave as though the `all:` modifier was used every time it would matter. An `all:` modifier before a revset expression does not otherwise change its meaning. Strictly speaking, it is not part of the revset language. The notation is similar to the modifiers like `glob:` allowed before [string patterms](#string-patterns). For example, `jj rebase -r w -d xyz+` will rebase `w` on top of the child of `xyz` as long as `xyz` has exactly one child. If `xyz` has more than one child, the `all:` modifier is *not* specified, and `ui.always-allow-large-revsets` is `false` (the default), `jj rebase -r w -d xyz+` will return an error. If `ui.always-allow-large-revsets` was `true`, the above command would act as if `all:` was set (see the next paragraph). With the `all:` modifier, `jj rebase -r w -d all:xyz+` will make `w` into a merge commit if `xyz` has more than one child. The `all:` modifier confirms that the user expected `xyz` to have more than one child. A more useful example: if `w` is a merge commit, `jj rebase -s w -d all:w- -d xyz` will add `xyz` to the list of `w`'s parents. ## Examples Show the parent(s) of the working-copy commit (like `git log -1 HEAD`): ``` jj log -r @- ``` Show all ancestors of the working copy (like plain `git log`) ``` jj log -r ::@ ``` Show commits not on any remote branch: ``` jj log -r 'remote_branches()..' ``` Show commits not on `origin` (if you have other remotes like `fork`): ``` jj log -r 'remote_branches(remote=origin)..' ``` Show the initial commits in the repo (the ones Git calls "root commits"): ``` jj log -r 'root()+' ``` Show some important commits (like `git --simplify-by-decoration`): ``` jj log -r 'tags() | branches()' ``` Show local commits leading up to the working copy, as well as descendants of those commits: ``` jj log -r '(remote_branches()..@)::' ``` Show commits authored by "martinvonz" and containing the word "reset" in the description: ``` jj log -r 'author(martinvonz) & description(reset)' ```