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2c9078d05b
Until now there was no way to test if unpack_trees() with update=1 would succeed without really updating the work tree. The reason for that is that setting update to 0 does skip the tests for new files and deactivates the sparse handling, thereby making that unsuitable as a dry run. Add the new dry_run flag to struct unpack_trees_options unpack_trees(). Setting that together with the update flag will check if the work tree update would be successful without doing it for real. The only class of problems that is not detected at the moment are file system conditions like ENOSPC or missing permissions. Also the index entries of updated files are not as they would be after a real checkout because lstat() isn't run as the files aren't updated for real. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
#ifndef UNPACK_TREES_H
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#define UNPACK_TREES_H
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#include "string-list.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)(struct cache_entry **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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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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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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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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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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merge_fn_t fn;
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const char *msgs[NB_UNPACK_TREES_ERROR_TYPES];
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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 threeway_merge(struct cache_entry **stages, struct unpack_trees_options *o);
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int twoway_merge(struct cache_entry **src, struct unpack_trees_options *o);
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int bind_merge(struct cache_entry **src, struct unpack_trees_options *o);
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int oneway_merge(struct cache_entry **src, struct unpack_trees_options *o);
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#endif
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