forked from mirrors/jj
528ccb318e
While I like strict parsing, it's not uncommon that we have to deal with file names containing spaces, and doubly-quoted strings such as '"Foo Bar"' look ugly. So, this patch adds an exception that accepts top-level bare strings. This parsing rule is specific to command arguments, and won't be enabled when loading fileset aliases.
81 lines
2.5 KiB
Markdown
81 lines
2.5 KiB
Markdown
# Filesets
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Jujutsu supports a functional language for selecting a set of files.
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Expressions in this language are called "filesets" (the idea comes from
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[Mercurial](https://repo.mercurial-scm.org/hg/help/filesets)). The language
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consists of file patterns, operators, and functions.
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**Filesets support is still experimental.** It can be enabled by
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`ui.allow-filesets`.
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```toml
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ui.allow-filesets = true
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```
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Many `jj` commands accept fileset expressions as positional arguments. File
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names passed to these commands must be quoted if they contain whitespace or meta
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characters. However, as a special case, quotes can be omitted if the expression
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has no operators nor function calls. For example:
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* `jj diff 'Foo Bar'` (shell quotes are required, but inner quotes are optional)
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* `jj diff '~"Foo Bar"'` (both shell and inner quotes are required)
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* `jj diff '"Foo(1)"'` (both shell and inner quotes are required)
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## File patterns
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The following patterns are supported:
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* `"path"`, `path` (the quotes are optional), or `cwd:"path"`: Matches
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cwd-relative path prefix (file or files under directory recursively.)
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* `cwd-file:"path"` or `file:"path"`: Matches cwd-relative file (or exact) path.
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* `cwd-glob:"pattern"` or `glob:"pattern"`: Matches file paths with cwd-relative
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Unix-style shell [wildcard `pattern`][glob]. For example, `glob:"*.c"` will
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match all `.c` files in the current working directory non-recursively.
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* `root:"path"`: Matches workspace-relative path prefix (file or files under
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directory recursively.)
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* `root-file:"path"`: Matches workspace-relative file (or exact) path.
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* `root-glob:"pattern"`: Matches file paths with workspace-relative Unix-style
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shell [wildcard `pattern`][glob].
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[glob]: https://docs.rs/glob/latest/glob/struct.Pattern.html
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## Operators
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The following operators are supported. `x` and `y` below can be any fileset
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expressions.
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* `x & y`: Matches both `x` and `y`.
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* `x | y`: Matches either `x` or `y` (or both).
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* `x ~ y`: Matches `x` but not `y`.
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* `~x`: Matches everything but `x`.
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You can use parentheses to control evaluation order, such as `(x & y) | z` or
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`x & (y | z)`.
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## Functions
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You can also specify patterns by using functions.
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* `all()`: Matches everything.
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* `none()`: Matches nothing.
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## Examples
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Show diff excluding `Cargo.lock`.
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```
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jj diff '~Cargo.lock'
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```
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List files in `src` excluding Rust sources.
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```
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jj files 'src ~ glob:"**/*.rs"'
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```
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Split a revision in two, putting `foo` into the second commit.
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```
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jj split '~foo'
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```
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