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4002ec3dcf
The "--super-prefix" option to "git" was initially added in [1] for use with "ls-files"[2], and shortly thereafter "submodule--helper"[3] and "grep"[4]. It wasn't until [5] that "read-tree" made use of it. At the time [5] made sense, but since then we've made "ls-files" recurse in-process in [6], "grep" in [7], and finally "submodule--helper" in the preceding commits. Let's also remove it from "read-tree", which allows us to remove the option to "git" itself. We can do this because the only remaining user of it is the submodule API, which will now invoke "read-tree" with its new "--super-prefix" option. It will only do so when the "submodule_move_head()" function is called. That "submodule_move_head()" function was then only invoked by "read-tree" itself, but now rather than setting an environment variable to pass "--super-prefix" between cmd_read_tree() we: - Set a new "super_prefix" in "struct unpack_trees_options". The "super_prefixed()" function in "unpack-trees.c" added in [5] will now use this, rather than get_super_prefix() looking up the environment variable we set earlier in the same process. - Add the same field to the "struct checkout", which is only needed to ferry the "super_prefix" in the "struct unpack_trees_options" all the way down to the "entry.c" callers of "submodule_move_head()". Those calls which used the super prefix all originated in "cmd_read_tree()". The only other caller is the "unlink_entry()" caller in "builtin/checkout.c", which now passes a "NULL". 1.74866d7579(git: make super-prefix option, 2016-10-07) 2.e77aa336f1(ls-files: optionally recurse into submodules, 2016-10-07) 3.89c8626557(submodule helper: support super prefix, 2016-12-08) 4.0281e487fd(grep: optionally recurse into submodules, 2016-12-16) 5.3d415425c7(unpack-trees: support super-prefix option, 2017-01-17) 6.188dce131f(ls-files: use repository object, 2017-06-22) 7.f9ee2fcdfa(grep: recurse in-process using 'struct repository', 2017-08-02) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
63 lines
2 KiB
C
63 lines
2 KiB
C
#ifndef ENTRY_H
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#define ENTRY_H
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#include "cache.h"
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#include "convert.h"
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struct checkout {
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struct index_state *istate;
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const char *base_dir;
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int base_dir_len;
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const char *super_prefix;
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struct delayed_checkout *delayed_checkout;
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struct checkout_metadata meta;
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unsigned force:1,
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quiet:1,
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not_new:1,
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clone:1,
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refresh_cache:1;
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};
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#define CHECKOUT_INIT { .base_dir = "" }
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#define TEMPORARY_FILENAME_LENGTH 25
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/*
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* Write the contents from ce out to the working tree.
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*
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* When topath[] is not NULL, instead of writing to the working tree
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* file named by ce, a temporary file is created by this function and
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* its name is returned in topath[], which must be able to hold at
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* least TEMPORARY_FILENAME_LENGTH bytes long.
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*
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* With checkout_entry_ca(), callers can optionally pass a preloaded
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* conv_attrs struct (to avoid reloading it), when ce refers to a
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* regular file. If ca is NULL, the attributes will be loaded
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* internally when (and if) needed.
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*/
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int checkout_entry_ca(struct cache_entry *ce, struct conv_attrs *ca,
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const struct checkout *state, char *topath,
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int *nr_checkouts);
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static inline int checkout_entry(struct cache_entry *ce,
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const struct checkout *state, char *topath,
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int *nr_checkouts)
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{
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return checkout_entry_ca(ce, NULL, state, topath, nr_checkouts);
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}
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void enable_delayed_checkout(struct checkout *state);
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int finish_delayed_checkout(struct checkout *state, int show_progress);
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/*
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* Unlink the last component and schedule the leading directories for
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* removal, such that empty directories get removed.
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*
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* The "super_prefix" is either NULL, or the "--super-prefix" passed
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* down from "read-tree" et al.
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*/
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void unlink_entry(const struct cache_entry *ce, const char *super_prefix);
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void *read_blob_entry(const struct cache_entry *ce, size_t *size);
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int fstat_checkout_output(int fd, const struct checkout *state, struct stat *st);
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void update_ce_after_write(const struct checkout *state, struct cache_entry *ce,
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struct stat *st);
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#endif /* ENTRY_H */
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