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e34c7e2b51
Update documentation to change "GIT" which was a poor-man's small caps to "Git". The latter was the intended spelling. Also change "git" spelled in all-lowercase to "Git" when it refers to the system as the whole or the concept it embodies, as opposed to the command the end users would type. * ta/doc-no-small-caps: Documentation: StGit is the right spelling, not StGIT Documentation: describe the "repository" in repository-layout Documentation: add a description for 'gitfile' to glossary Documentation: do not use undefined terms git-dir and git-file Documentation: the name of the system is 'Git', not 'git' Documentation: avoid poor-man's small caps GIT
86 lines
2.1 KiB
Text
86 lines
2.1 KiB
Text
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. A single
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`struct dir_struct` is used regardless of whether or not the traversal
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recursively descends into subdirectories.
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The notable 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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`flags`::
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A bit-field of options:
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`DIR_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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`DIR_SHOW_OTHER_DIRECTORIES`:::
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Include a directory that is not tracked.
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`DIR_HIDE_EMPTY_DIRECTORIES`:::
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Do not include a directory that is not tracked and is empty.
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`DIR_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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* To add single exclude pattern, call `add_exclude_list()` and then
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`add_exclude()`.
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* To add patterns from a file (e.g. `.git/info/exclude`), call
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`add_excludes_from_file()` , and/or set `dir.exclude_per_dir`. A
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short-hand function `setup_standard_excludes()` can be used to set
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up 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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* Call `clear_directory()` when none of the contained elements are no longer in use.
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(JC)
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