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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>
132 lines
3.5 KiB
C
132 lines
3.5 KiB
C
#ifndef UNPACK_TREES_H
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#define UNPACK_TREES_H
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#include "cache.h"
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#include "strvec.h"
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#include "string-list.h"
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#include "tree-walk.h"
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#define MAX_UNPACK_TREES MAX_TRAVERSE_TREES
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struct cache_entry;
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struct unpack_trees_options;
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struct pattern_list;
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typedef int (*merge_fn_t)(const struct cache_entry * const *src,
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struct unpack_trees_options *options);
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enum unpack_trees_error_types {
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ERROR_WOULD_OVERWRITE = 0,
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ERROR_NOT_UPTODATE_FILE,
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ERROR_NOT_UPTODATE_DIR,
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ERROR_CWD_IN_THE_WAY,
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ERROR_WOULD_LOSE_UNTRACKED_OVERWRITTEN,
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ERROR_WOULD_LOSE_UNTRACKED_REMOVED,
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ERROR_BIND_OVERLAP,
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ERROR_WOULD_LOSE_SUBMODULE,
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NB_UNPACK_TREES_ERROR_TYPES,
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WARNING_SPARSE_NOT_UPTODATE_FILE,
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WARNING_SPARSE_UNMERGED_FILE,
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WARNING_SPARSE_ORPHANED_NOT_OVERWRITTEN,
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NB_UNPACK_TREES_WARNING_TYPES,
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};
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/*
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* Sets the list of user-friendly error messages to be used by the
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* command "cmd" (either merge or checkout), and show_all_errors to 1.
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*/
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void setup_unpack_trees_porcelain(struct unpack_trees_options *opts,
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const char *cmd);
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/*
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* Frees resources allocated by setup_unpack_trees_porcelain().
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*/
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void clear_unpack_trees_porcelain(struct unpack_trees_options *opts);
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enum unpack_trees_reset_type {
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UNPACK_RESET_NONE = 0, /* traditional "false" value; still valid */
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UNPACK_RESET_INVALID = 1, /* "true" no longer valid; use below values */
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UNPACK_RESET_PROTECT_UNTRACKED,
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UNPACK_RESET_OVERWRITE_UNTRACKED
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};
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struct unpack_trees_options {
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unsigned int merge,
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update,
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preserve_ignored,
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clone,
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index_only,
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nontrivial_merge,
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trivial_merges_only,
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verbose_update,
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aggressive,
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skip_unmerged,
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initial_checkout,
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diff_index_cached,
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debug_unpack,
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skip_sparse_checkout,
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quiet,
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exiting_early,
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show_all_errors,
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dry_run,
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skip_cache_tree_update;
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enum unpack_trees_reset_type reset;
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const char *prefix;
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const char *super_prefix;
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int cache_bottom;
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struct pathspec *pathspec;
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merge_fn_t fn;
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const char *msgs[NB_UNPACK_TREES_WARNING_TYPES];
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struct strvec msgs_to_free;
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/*
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* Store error messages in an array, each case
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* corresponding to a error message type
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*/
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struct string_list unpack_rejects[NB_UNPACK_TREES_WARNING_TYPES];
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int head_idx;
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int merge_size;
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struct cache_entry *df_conflict_entry;
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void *unpack_data;
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struct index_state *dst_index;
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struct index_state *src_index;
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struct index_state result;
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struct pattern_list *pl; /* for internal use */
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struct dir_struct *dir; /* for internal use only */
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struct checkout_metadata meta;
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};
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int unpack_trees(unsigned n, struct tree_desc *t,
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struct unpack_trees_options *options);
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enum update_sparsity_result {
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UPDATE_SPARSITY_SUCCESS = 0,
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UPDATE_SPARSITY_WARNINGS = 1,
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UPDATE_SPARSITY_INDEX_UPDATE_FAILURES = -1,
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UPDATE_SPARSITY_WORKTREE_UPDATE_FAILURES = -2
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};
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enum update_sparsity_result update_sparsity(struct unpack_trees_options *options);
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int verify_uptodate(const struct cache_entry *ce,
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struct unpack_trees_options *o);
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int threeway_merge(const struct cache_entry * const *stages,
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struct unpack_trees_options *o);
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int twoway_merge(const struct cache_entry * const *src,
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struct unpack_trees_options *o);
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int bind_merge(const struct cache_entry * const *src,
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struct unpack_trees_options *o);
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int oneway_merge(const struct cache_entry * const *src,
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struct unpack_trees_options *o);
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int stash_worktree_untracked_merge(const struct cache_entry * const *src,
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struct unpack_trees_options *o);
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#endif
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