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refactor get_textconv to not require diff_filespec 

This function actually does two things:

  1. Load the userdiff driver for the filespec.

  2. Decide whether the driver has a textconv component, and
     initialize the textconv cache if applicable.

Only part (1) requires the filespec object, and some callers
may not have a filespec at all. So let's split them it into
two functions, and put part (2) with the userdiff code,
which is a better fit.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2011-05-23 16:30:14 -04:00 committed by Junio C Hamano
parent 4d5f347199
commit 3813e69031
3 changed files with 20 additions and 13 deletions
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14
diff.c
View File

@ -1976,19 +1976,7 @@ struct userdiff_driver *get_textconv(struct diff_filespec *one)
return NULL;
diff_filespec_load_driver(one);
if (!one->driver->textconv)
return NULL;
if (one->driver->textconv_want_cache && !one->driver->textconv_cache) {
struct notes_cache *c = xmalloc(sizeof(*c));
struct strbuf name = STRBUF_INIT;
strbuf_addf(&name, "textconv/%s", one->driver->name);
notes_cache_init(c, name.buf, one->driver->textconv);
one->driver->textconv_cache = c;
}
return one->driver;
return userdiff_get_textconv(one->driver);
}
static void builtin_diff(const char *name_a,

17
userdiff.c
View File

@ -267,3 +267,20 @@ struct userdiff_driver *userdiff_find_by_path(const char *path)
return NULL;
return userdiff_find_by_name(check.value);
}
struct userdiff_driver *userdiff_get_textconv(struct userdiff_driver *driver)
{
if (!driver->textconv)
return NULL;
if (driver->textconv_want_cache && !driver->textconv_cache) {
struct notes_cache *c = xmalloc(sizeof(*c));
struct strbuf name = STRBUF_INIT;
strbuf_addf(&name, "textconv/%s", driver->name);
notes_cache_init(c, name.buf, driver->textconv);
driver->textconv_cache = c;
}
return driver;
}

2
userdiff.h
View File

@ -23,4 +23,6 @@ int userdiff_config(const char *k, const char *v);
struct userdiff_driver *userdiff_find_by_name(const char *name);
struct userdiff_driver *userdiff_find_by_path(const char *path);
struct userdiff_driver *userdiff_get_textconv(struct userdiff_driver *driver);
#endif /* USERDIFF */