thodg/libgit2/src/blame.h

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• Hash : 0c7f49dd
  Author :
  Date : 2017-06-30T13:39:01
  

  Make sure to always include "common.h" first
  
  Next to including several files, our "common.h" header also declares
  various macros which are then used throughout the project. As such, we
  have to make sure to always include this file first in all
  implementation files. Otherwise, we might encounter problems or even
  silent behavioural differences due to macros or defines not being
  defined as they should be. So in fact, our header and implementation
  files should make sure to always include "common.h" first.
  
  This commit does so by establishing a common include pattern. Header
  files inside of "src" will now always include "common.h" as its first
  other file, separated by a newline from all the other includes to make
  it stand out as special. There are two cases for the implementation
  files. If they do have a matching header file, they will always include
  this one first, leading to "common.h" being transitively included as
  first file. If they do not have a matching header file, they instead
  include "common.h" as first file themselves.
  
  This fixes the outlined problems and will become our standard practice
  for header and source files inside of the "src/" from now on.
  

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• src/blame.h

• #ifndef INCLUDE_blame_h__
  #define INCLUDE_blame_h__
  
  #include "common.h"
  
  #include "git2/blame.h"
  #include "vector.h"
  #include "diff.h"
  #include "array.h"
  #include "git2/oid.h"
  
  /*
   * One blob in a commit that is being suspected
   */
  typedef struct git_blame__origin {
  	int refcnt;
  	struct git_blame__origin *previous;
  	git_commit *commit;
  	git_blob *blob;
  	char path[GIT_FLEX_ARRAY];
  } git_blame__origin;
  
  /*
   * Each group of lines is described by a git_blame__entry; it can be split
   * as we pass blame to the parents.  They form a linked list in the
   * scoreboard structure, sorted by the target line number.
   */
  typedef struct git_blame__entry {
  	struct git_blame__entry *prev;
  	struct git_blame__entry *next;
  
  	/* the first line of this group in the final image;
  	 * internally all line numbers are 0 based.
  	 */
  	size_t lno;
  
  	/* how many lines this group has */
  	size_t num_lines;
  
  	/* the commit that introduced this group into the final image */
  	git_blame__origin *suspect;
  
  	/* true if the suspect is truly guilty; false while we have not
  	 * checked if the group came from one of its parents.
  	 */
  	bool guilty;
  
  	/* true if the entry has been scanned for copies in the current parent
  	 */
  	bool scanned;
  
  	/* the line number of the first line of this group in the
  	 * suspect's file; internally all line numbers are 0 based.
  	 */
  	size_t s_lno;
  
  	/* how significant this entry is -- cached to avoid
  	 * scanning the lines over and over.
  	 */
  	unsigned score;
  
  	/* Whether this entry has been tracked to a boundary commit.
  	 */
  	bool is_boundary;
  } git_blame__entry;
  
  struct git_blame {
  	char *path;
  	git_repository *repository;
  	git_blame_options options;
  
  	git_vector hunks;
  	git_vector paths;
  
  	git_blob *final_blob;
  	git_array_t(size_t) line_index;
  
  	size_t current_diff_line;
  	git_blame_hunk *current_hunk;
  
  	/* Scoreboard fields */
  	git_commit *final;
  	git_blame__entry *ent;
  	int num_lines;
  	const char *final_buf;
  	git_off_t final_buf_size;
  };
  
  git_blame *git_blame__alloc(
  	git_repository *repo,
  	git_blame_options opts,
  	const char *path);
  
  #endif
  

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