pathspec: remove the deprecated get_pathspec function

Now that all callers of the old 'get_pathspec' interface have been
migrated to use the new pathspec struct interface it can be removed
from the codebase.

Since there are no more users of the '_raw' field in the pathspec struct
it can also be removed.  This patch also removes the old functionality
of modifying the const char **argv array that was passed into
parse_pathspec.  Instead the constructed 'match' string (which is a
pathspec element with the prefix prepended) is only stored in its
corresponding pathspec_item entry.

Signed-off-by: Brandon Williams <bmwill@google.com>
Reviewed-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/technical/api-setup.txt

@@ -27,8 +27,6 @@ parse_pathspec(). This function takes several arguments:
 
 - prefix and args come from cmd_* functions
 
-get_pathspec() is obsolete and should never be used in new code.
-
 parse_pathspec() helps catch unsupported features and reject them
 politely. At a lower level, different pathspec-related functions may
 not support the same set of features. Such pathspec-sensitive

cache.h

@@ -514,7 +514,6 @@ extern void set_git_work_tree(const char *tree);
 
 #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
 
-extern const char **get_pathspec(const char *prefix, const char **pathspec);
 extern void setup_work_tree(void);
 extern const char *setup_git_directory_gently(int *);
 extern const char *setup_git_directory(void);

pathspec.c

@@ -103,7 +103,7 @@ static void prefix_short_magic(struct strbuf *sb, int prefixlen,
  */
 static unsigned prefix_pathspec(struct pathspec_item *item,
 				unsigned *p_short_magic,
-				const char **raw, unsigned flags,
+				unsigned flags,
 				const char *prefix, int prefixlen,
 				const char *elt)
 {
@@ -240,7 +240,7 @@ static unsigned prefix_pathspec(struct pathspec_item *item,
 		if (!match)
 			die(_("%s: '%s' is outside repository"), elt, copyfrom);
 	}
-	*raw = item->match = match;
+	item->match = match;
 	/*
 	 * Prefix the pathspec (keep all magic) and assign to
 	 * original. Useful for passing to another command.
@@ -381,8 +381,6 @@ void parse_pathspec(struct pathspec *pathspec,
 
 	/* No arguments with prefix -> prefix pathspec */
 	if (!entry) {
-		static const char *raw[2];
-
 		if (flags & PATHSPEC_PREFER_FULL)
 			return;
 
@@ -394,10 +392,7 @@ void parse_pathspec(struct pathspec *pathspec,
 		item->original = prefix;
 		item->nowildcard_len = item->len = strlen(prefix);
 		item->prefix = item->len;
-		raw[0] = prefix;
-		raw[1] = NULL;
 		pathspec->nr = 1;
-		pathspec->_raw = raw;
 		return;
 	}
 
@@ -415,7 +410,6 @@ void parse_pathspec(struct pathspec *pathspec,
 	pathspec->nr = n;
 	ALLOC_ARRAY(pathspec->items, n);
 	item = pathspec->items;
-	pathspec->_raw = argv;
 	prefixlen = prefix ? strlen(prefix) : 0;
 
 	for (i = 0; i < n; i++) {
@@ -423,7 +417,7 @@ void parse_pathspec(struct pathspec *pathspec,
 		entry = argv[i];
 
 		item[i].magic = prefix_pathspec(item + i, &short_magic,
-						argv + i, flags,
+						flags,
 						prefix, prefixlen, entry);
 		if ((flags & PATHSPEC_LITERAL_PATH) &&
 		    !(magic_mask & PATHSPEC_LITERAL))
@@ -457,36 +451,6 @@ void parse_pathspec(struct pathspec *pathspec,
 	}
 }
 
-/*
- * N.B. get_pathspec() is deprecated in favor of the "struct pathspec"
- * based interface - see pathspec.c:parse_pathspec().
- *
- * Arguments:
- *  - prefix - a path relative to the root of the working tree
- *  - pathspec - a list of paths underneath the prefix path
- *
- * Iterates over pathspec, prepending each path with prefix,
- * and return the resulting list.
- *
- * If pathspec is empty, return a singleton list containing prefix.
- *
- * If pathspec and prefix are both empty, return an empty list.
- *
- * This is typically used by built-in commands such as add.c, in order
- * to normalize argv arguments provided to the built-in into a list of
- * paths to process, all relative to the root of the working tree.
- */
-const char **get_pathspec(const char *prefix, const char **pathspec)
-{
-	struct pathspec ps;
-	parse_pathspec(&ps,
-		       PATHSPEC_ALL_MAGIC &
-		       ~(PATHSPEC_FROMTOP | PATHSPEC_LITERAL),
-		       PATHSPEC_PREFER_CWD,
-		       prefix, pathspec);
-	return ps._raw;
-}
-
 void copy_pathspec(struct pathspec *dst, const struct pathspec *src)
 {
 	*dst = *src;

pathspec.h

@@ -19,7 +19,6 @@
 #define PATHSPEC_ONESTAR 1	/* the pathspec pattern satisfies GFNM_ONESTAR */
 
 struct pathspec {
-	const char **_raw; /* get_pathspec() result, not freed by clear_pathspec() */
 	int nr;
 	unsigned int has_wildcard:1;
 	unsigned int recursive:1;