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Merge branch 'nd/negative-pathspec'

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Introduce "negative pathspec" magic, to allow "git log -- . ':!dir'" to
tell us "I am interested in everything but 'dir' directory".

* nd/negative-pathspec:
  pathspec.c: support adding prefix magic to a pathspec with mnemonic magic
  Support pathspec magic :(exclude) and its short form :!
  glossary-content.txt: rephrase magic signature part
This commit is contained in:
Junio C Hamano
2014-01-10 10:31:48 -08:00
parent 932f7e4769 1649612a22
commit 010d81ae35
7 changed files with 354 additions and 40 deletions
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37
pathspec.c
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@ -71,8 +71,23 @@ static struct pathspec_magic {
{ PATHSPEC_LITERAL, 0, "literal" },
{ PATHSPEC_GLOB, '\0', "glob" },
{ PATHSPEC_ICASE, '\0', "icase" },
{ PATHSPEC_EXCLUDE, '!', "exclude" },
};
static void prefix_short_magic(struct strbuf *sb, int prefixlen,
unsigned short_magic)
{
int i;
strbuf_addstr(sb, ":(");
for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++)
if (short_magic & pathspec_magic[i].bit) {
if (sb->buf[sb->len - 1] != '(')
strbuf_addch(sb, ',');
strbuf_addstr(sb, pathspec_magic[i].name);
}
strbuf_addf(sb, ",prefix:%d)", prefixlen);
}
/*
* Take an element of a pathspec and check for magic signatures.
* Append the result to the prefix. Return the magic bitmap.
@ -232,22 +247,16 @@ static unsigned prefix_pathspec(struct pathspec_item *item,
*/
if (flags & PATHSPEC_PREFIX_ORIGIN) {
struct strbuf sb = STRBUF_INIT;
const char *start = elt;
if (prefixlen && !literal_global) {
/* Preserve the actual prefix length of each pattern */
if (short_magic)
die("BUG: prefixing on short magic is not supported");
prefix_short_magic(&sb, prefixlen, short_magic);
else if (long_magic_end) {
strbuf_add(&sb, start, long_magic_end - start);
strbuf_addf(&sb, ",prefix:%d", prefixlen);
start = long_magic_end;
} else {
if (*start == ':')
start++;
strbuf_add(&sb, elt, long_magic_end - elt);
strbuf_addf(&sb, ",prefix:%d)", prefixlen);
} else
strbuf_addf(&sb, ":(prefix:%d)", prefixlen);
}
}
strbuf_add(&sb, start, copyfrom - start);
strbuf_addstr(&sb, match);
item->original = strbuf_detach(&sb, NULL);
} else
@ -355,7 +364,7 @@ void parse_pathspec(struct pathspec *pathspec,
{
struct pathspec_item *item;
const char *entry = argv ? *argv : NULL;
int i, n, prefixlen;
int i, n, prefixlen, nr_exclude = 0;
memset(pathspec, 0, sizeof(*pathspec));
@ -412,6 +421,8 @@ void parse_pathspec(struct pathspec *pathspec,
if ((flags & PATHSPEC_LITERAL_PATH) &&
!(magic_mask & PATHSPEC_LITERAL))
item[i].magic |= PATHSPEC_LITERAL;
if (item[i].magic & PATHSPEC_EXCLUDE)
nr_exclude++;
if (item[i].magic & magic_mask)
unsupported_magic(entry,
item[i].magic & magic_mask,
@ -427,6 +438,10 @@ void parse_pathspec(struct pathspec *pathspec,
pathspec->magic |= item[i].magic;
}
if (nr_exclude == n)
die(_("There is nothing to exclude from by :(exclude) patterns.\n"
"Perhaps you forgot to add either ':/' or '.' ?"));
if (pathspec->magic & PATHSPEC_MAXDEPTH) {
if (flags & PATHSPEC_KEEP_ORDER)