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![Jens Lehmann](/assets/img/avatar_default.png)
Currently using "git rm" on a submodule - populated or not - fails with this error: fatal: git rm: '<submodule path>': Is a directory This made sense in the past as there was no way to remove a submodule without possibly removing unpushed parts of the submodule's history contained in its .git directory too, so erroring out here protected the user from possible loss of data. But submodules cloned with a recent git version do not contain the .git directory anymore, they use a gitfile to point to their git directory which is safely stored inside the superproject's .git directory. The work tree of these submodules can safely be removed without losing history, so let's teach git to do so. Using rm on an unpopulated submodule now removes the empty directory from the work tree and the gitlink from the index. If the submodule's directory is missing from the work tree, it will still be removed from the index. Using rm on a populated submodule using a gitfile will apply the usual checks for work tree modification adapted to submodules (unless forced). For a submodule that means that the HEAD is the same as recorded in the index, no tracked files are modified and no untracked files that aren't ignored are present in the submodules work tree (ignored files are deemed expendable and won't stop a submodule's work tree from being removed). That logic has to be applied in all nested submodules too. Using rm on a submodule which has its .git directory inside the work trees top level directory will just error out like it did before to protect the repository, even when forced. In the future git could either provide a message informing the user to convert the submodule to use a gitfile or even attempt to do the conversion itself, but that is not part of this change. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
39 lines
1.6 KiB
C
39 lines
1.6 KiB
C
#ifndef SUBMODULE_H
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#define SUBMODULE_H
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struct diff_options;
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enum {
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RECURSE_SUBMODULES_ON_DEMAND = -1,
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RECURSE_SUBMODULES_OFF = 0,
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RECURSE_SUBMODULES_DEFAULT = 1,
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RECURSE_SUBMODULES_ON = 2
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};
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void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt,
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const char *path);
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int submodule_config(const char *var, const char *value, void *cb);
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void gitmodules_config(void);
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int parse_submodule_config_option(const char *var, const char *value);
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void handle_ignore_submodules_arg(struct diff_options *diffopt, const char *);
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int parse_fetch_recurse_submodules_arg(const char *opt, const char *arg);
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void show_submodule_summary(FILE *f, const char *path,
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unsigned char one[20], unsigned char two[20],
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unsigned dirty_submodule,
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const char *del, const char *add, const char *reset);
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void set_config_fetch_recurse_submodules(int value);
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void check_for_new_submodule_commits(unsigned char new_sha1[20]);
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int fetch_populated_submodules(int num_options, const char **options,
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const char *prefix, int command_line_option,
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int quiet);
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unsigned is_submodule_modified(const char *path, int ignore_untracked);
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int submodule_uses_gitfile(const char *path);
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int ok_to_remove_submodule(const char *path);
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int merge_submodule(unsigned char result[20], const char *path, const unsigned char base[20],
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const unsigned char a[20], const unsigned char b[20], int search);
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int find_unpushed_submodules(unsigned char new_sha1[20], const char *remotes_name,
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struct string_list *needs_pushing);
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int push_unpushed_submodules(unsigned char new_sha1[20], const char *remotes_name);
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#endif
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