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jj/docs/filesets.md
Yuya Nishihara 5b769c5c9e fileset, revset, templater: add support for single-quoted raw string literals 
Since fileset/revset/template expressions are specified as command-line
arguments, it's sometimes convenient to use single quotes instead of double
quotes. Various scripting languages parse single-quoted strings in various ways,
but I choose the TOML rule because it's simple and practically useful. TOML is
our config language, so copying the TOML syntax would be less surprising than
borrowing it from another language.

https://github.com/toml-lang/toml/issues/188
2024-04-25 11:14:33 +09:00

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Filesets

Jujutsu supports a functional language for selecting a set of files. Expressions in this language are called "filesets" (the idea comes from Mercurial). The language consists of file patterns, operators, and functions.

Filesets support is still experimental. It can be enabled by ui.allow-filesets.

ui.allow-filesets = true

Many jj commands accept fileset expressions as positional arguments. File names passed to these commands must be quoted if they contain whitespace or meta characters. However, as a special case, quotes can be omitted if the expression has no operators nor function calls. For example:

  • jj diff 'Foo Bar' (shell quotes are required, but inner quotes are optional)
  • jj diff '~"Foo Bar"' (both shell and inner quotes are required)
  • jj diff '"Foo(1)"' (both shell and inner quotes are required)

File patterns

The following patterns are supported:

  • "path", path (the quotes are optional), or cwd:"path": Matches cwd-relative path prefix (file or files under directory recursively.)
  • cwd-file:"path" or file:"path": Matches cwd-relative file (or exact) path.
  • cwd-glob:"pattern" or glob:"pattern": Matches file paths with cwd-relative Unix-style shell wildcard pattern. For example, glob:"*.c" will match all .c files in the current working directory non-recursively.
  • root:"path": Matches workspace-relative path prefix (file or files under directory recursively.)
  • root-file:"path": Matches workspace-relative file (or exact) path.
  • root-glob:"pattern": Matches file paths with workspace-relative Unix-style shell wildcard pattern.

Operators

The following operators are supported. x and y below can be any fileset expressions.

  • x & y: Matches both x and y.
  • x | y: Matches either x or y (or both).
  • x ~ y: Matches x but not y.
  • ~x: Matches everything but x.

You can use parentheses to control evaluation order, such as (x & y) | z or x & (y | z).

Functions

You can also specify patterns by using functions.

  • all(): Matches everything.
  • none(): Matches nothing.

Examples

Show diff excluding Cargo.lock.

jj diff '~Cargo.lock'

List files in src excluding Rust sources.

jj files 'src ~ glob:"**/*.rs"'

Split a revision in two, putting foo into the second commit.

jj split '~foo'