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Merge pull request #20176 from dvdksn/build-dockerignore-trailing-slash 

build(dockerignore): leading and trailing slashes are ignored
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David Karlsson 2024-06-07 16:54:37 +02:00 committed by GitHub
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@ -464,15 +464,22 @@ file at the root of the build context if both exist.
### Syntax
The `.dockerignore` file is a newline-separated list of patterns similar to the
file globs of Unix shells. For the purposes of matching, the root of the
context is considered to be both the working and the root directory. For
example, the patterns `/foo/bar` and `foo/bar` both exclude a file or directory
named `bar` in the `foo` subdirectory of `PATH` or in the root of the Git
repository located at `URL`. Neither excludes anything else.
file globs of Unix shells. Leading and trailing slashes in ignore patterns are
disregarded. The following patterns all exclude a file or directory named `bar`
in the subdirectory `foo` under the root of the build context:
- `/foo/bar/`
- `/foo/bar`
- `foo/bar/`
- `foo/bar`
If a line in `.dockerignore` file starts with `#` in column 1, then this line
is considered as a comment and is ignored before interpreted by the CLI.
```gitignore
#/this/is/a/comment
```
If you're interested in learning the precise details of the `.dockerignore`
pattern matching logic, check out the
[moby/patternmatcher repository](https://github.com/moby/patternmatcher/tree/main/ignorefile)