pathspec: small readability changes

A few small changes to improve readability.  This is done by grouping related
assignments, adding blank lines, ensuring lines are <80 characters, and
adding additional comments.

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>

diff --git a/pathspec.c b/pathspec.c
index f3a7a1d..e53530e 100644 (file)
--- a/pathspec.c
+++ b/pathspec.c
@@ -67,11 +67,11 @@ static struct pathspec_magic {
        char mnemonic; /* this cannot be ':'! */
        const char *name;
 } pathspec_magic[] = {
-       { PATHSPEC_FROMTOP, '/', "top" },
-       { PATHSPEC_LITERAL,   0, "literal" },
-       { PATHSPEC_GLOB,   '\0', "glob" },
-       { PATHSPEC_ICASE,  '\0', "icase" },
-       { PATHSPEC_EXCLUDE, '!', "exclude" },
+       { PATHSPEC_FROMTOP,  '/', "top" },
+       { PATHSPEC_LITERAL, '\0', "literal" },
+       { PATHSPEC_GLOB,    '\0', "glob" },
+       { PATHSPEC_ICASE,   '\0', "icase" },
+       { PATHSPEC_EXCLUDE,  '!', "exclude" },
 };
 
 static void prefix_magic(struct strbuf *sb, int prefixlen, unsigned magic)
@@ -336,6 +336,7 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
        if ((magic & PATHSPEC_LITERAL) && (magic & PATHSPEC_GLOB))
                die(_("%s: 'literal' and 'glob' are incompatible"), elt);
 
+       /* Create match string which will be used for pathspec matching */
        if (pathspec_prefix >= 0) {
                match = xstrdup(copyfrom);
                prefixlen = pathspec_prefix;
@@ -343,11 +344,16 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
                match = xstrdup(copyfrom);
                prefixlen = 0;
        } else {
-               match = prefix_path_gently(prefix, prefixlen, &prefixlen, copyfrom);
+               match = prefix_path_gently(prefix, prefixlen,
+                                          &prefixlen, copyfrom);
                if (!match)
                        die(_("%s: '%s' is outside repository"), elt, copyfrom);
        }
+
        item->match = match;
+       item->len = strlen(item->match);
+       item->prefix = prefixlen;
+
        /*
         * Prefix the pathspec (keep all magic) and assign to
         * original. Useful for passing to another command.
@@ -364,8 +370,6 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
        } else {
                item->original = xstrdup(elt);
        }
-       item->len = strlen(item->match);
-       item->prefix = prefixlen;
 
        if (flags & PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP)
                strip_submodule_slash_cheap(item);
@@ -373,13 +377,14 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
        if (flags & PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE)
                strip_submodule_slash_expensive(item);
 
-       if (magic & PATHSPEC_LITERAL)
+       if (magic & PATHSPEC_LITERAL) {
                item->nowildcard_len = item->len;
-       else {
+       } else {
                item->nowildcard_len = simple_length(item->match);
                if (item->nowildcard_len < prefixlen)
                        item->nowildcard_len = prefixlen;
        }
+
        item->flags = 0;
        if (magic & PATHSPEC_GLOB) {
                /*