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b878579ae7
Paths that only differ in case work fine in a case-sensitive filesystems, but if those repos are cloned in a case-insensitive one, you'll get problems. The first thing to notice is "git status" will never be clean with no indication what exactly is "dirty". This patch helps the situation a bit by pointing out the problem at clone time. Even though this patch talks about case sensitivity, the patch makes no assumption about folding rules by the filesystem. It simply observes that if an entry has been already checked out at clone time when we're about to write a new path, some folding rules are behind this. In the case that we can't rely on filesystem (via inode number) to do this check, fall back to fspathcmp() which is not perfect but should not give false positives. This patch is tested with vim-colorschemes and Sublime-Gitignore repositories on a JFS partition with case insensitive support on Linux. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
#ifndef UNPACK_TREES_H
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#define UNPACK_TREES_H
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#include "tree-walk.h"
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#include "argv-array.h"
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#define MAX_UNPACK_TREES 8
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struct unpack_trees_options;
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struct exclude_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_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_SPARSE_NOT_UPTODATE_FILE,
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ERROR_WOULD_LOSE_ORPHANED_OVERWRITTEN,
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ERROR_WOULD_LOSE_ORPHANED_REMOVED,
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ERROR_WOULD_LOSE_SUBMODULE,
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NB_UNPACK_TREES_ERROR_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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struct unpack_trees_options {
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unsigned int reset,
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merge,
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update,
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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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gently,
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exiting_early,
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show_all_errors,
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dry_run;
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const char *prefix;
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int cache_bottom;
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struct dir_struct *dir;
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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_ERROR_TYPES];
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struct argv_array 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_ERROR_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 exclude_list *el; /* for internal use */
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};
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extern int unpack_trees(unsigned n, struct tree_desc *t,
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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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#endif
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