c28b3d6e7b
This adds index as a prerequisite for directory listing (with exclude). At the moment directory listing is used by "git clean", "git add", "git ls-files" and "git status"/"git commit" and unpack_trees()-related commands. These commands have been checked/modified to populate index before doing directory listing. add_excludes_from_file() does not enable this feature, because it is used to read .git/info/exclude and some explicit files specified by "git ls-files". Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
80 lines
1.9 KiB
Plaintext
80 lines
1.9 KiB
Plaintext
directory listing API
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=====================
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The directory listing API is used to enumerate paths in the work tree,
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optionally taking `.git/info/exclude` and `.gitignore` files per
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directory into account.
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Data structure
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--------------
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`struct dir_struct` structure is used to pass directory traversal
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options to the library and to record the paths discovered. The notable
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options are:
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`exclude_per_dir`::
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The name of the file to be read in each directory for excluded
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files (typically `.gitignore`).
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`collect_ignored`::
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Include paths that are to be excluded in the result.
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`show_ignored`::
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The traversal is for finding just ignored files, not unignored
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files.
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`show_other_directories`::
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Include a directory that is not tracked.
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`hide_empty_directories`::
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Do not include a directory that is not tracked and is empty.
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`no_gitlinks`::
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If set, recurse into a directory that looks like a git
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directory. Otherwise it is shown as a directory.
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The result of the enumeration is left in these fields::
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`entries[]`::
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An array of `struct dir_entry`, each element of which describes
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a path.
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`nr`::
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The number of members in `entries[]` array.
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`alloc`::
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Internal use; keeps track of allocation of `entries[]` array.
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Calling sequence
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----------------
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Note: index may be looked at for .gitignore files that are CE_SKIP_WORKTREE
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marked. If you to exclude files, make sure you have loaded index first.
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* Prepare `struct dir_struct dir` and clear it with `memset(&dir, 0,
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sizeof(dir))`.
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* Call `add_exclude()` to add single exclude pattern,
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`add_excludes_from_file()` to add patterns from a file
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(e.g. `.git/info/exclude`), and/or set `dir.exclude_per_dir`. A
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short-hand function `setup_standard_excludes()` can be used to set up
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the standard set of exclude settings.
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* Set options described in the Data Structure section above.
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* Call `read_directory()`.
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* Use `dir.entries[]`.
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(JC)
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