convert: make it harder to screw up adding a conversion attribute

The current internal API requires the callers of setup_convert_check() to
supply the git_attr_check structures (hence they need to know how many to
allocate), but they grab the same set of attributes for given path.

Define a new convert_attrs() API that fills a higher level information that
the callers (convert_to_git and convert_to_working_tree) really want, and
move the common code to interact with the attributes system to it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2011-05-09 13:58:31 -07:00
parent 83295964b3
commit 3bfba20dae

View File

@ -703,12 +703,19 @@ static enum crlf_action input_crlf_action(enum crlf_action text_attr, enum eol e
return text_attr; return text_attr;
} }
struct conv_attrs {
struct convert_driver *drv;
enum crlf_action crlf_action;
enum eol eol_attr;
int ident;
};
static const char *conv_attr_name[] = { static const char *conv_attr_name[] = {
"crlf", "ident", "filter", "eol", "text", "crlf", "ident", "filter", "eol", "text",
}; };
#define NUM_CONV_ATTRS ARRAY_SIZE(conv_attr_name) #define NUM_CONV_ATTRS ARRAY_SIZE(conv_attr_name)
static void setup_convert_check(struct git_attr_check *check) static void convert_attrs(struct conv_attrs *ca, const char *path)
{ {
int i; int i;
static struct git_attr_check ccheck[NUM_CONV_ATTRS]; static struct git_attr_check ccheck[NUM_CONV_ATTRS];
@ -719,70 +726,60 @@ static void setup_convert_check(struct git_attr_check *check)
user_convert_tail = &user_convert; user_convert_tail = &user_convert;
git_config(read_convert_config, NULL); git_config(read_convert_config, NULL);
} }
for (i = 0; i < NUM_CONV_ATTRS; i++)
check[i].attr = ccheck[i].attr; if (!git_checkattr(path, NUM_CONV_ATTRS, ccheck)) {
ca->crlf_action = git_path_check_crlf(path, ccheck + 4);
if (ca->crlf_action == CRLF_GUESS)
ca->crlf_action = git_path_check_crlf(path, ccheck + 0);
ca->ident = git_path_check_ident(path, ccheck + 1);
ca->drv = git_path_check_convert(path, ccheck + 2);
ca->eol_attr = git_path_check_eol(path, ccheck + 3);
} else {
ca->drv = NULL;
ca->crlf_action = CRLF_GUESS;
ca->eol_attr = EOL_UNSET;
ca->ident = 0;
}
} }
int convert_to_git(const char *path, const char *src, size_t len, int convert_to_git(const char *path, const char *src, size_t len,
struct strbuf *dst, enum safe_crlf checksafe) struct strbuf *dst, enum safe_crlf checksafe)
{ {
struct git_attr_check check[NUM_CONV_ATTRS]; int ret = 0;
enum crlf_action crlf_action = CRLF_GUESS;
enum eol eol_attr = EOL_UNSET;
int ident = 0, ret = 0;
const char *filter = NULL; const char *filter = NULL;
struct conv_attrs ca;
setup_convert_check(check); convert_attrs(&ca, path);
if (!git_checkattr(path, ARRAY_SIZE(check), check)) { if (ca.drv)
struct convert_driver *drv; filter = ca.drv->clean;
crlf_action = git_path_check_crlf(path, check + 4);
if (crlf_action == CRLF_GUESS)
crlf_action = git_path_check_crlf(path, check + 0);
ident = git_path_check_ident(path, check + 1);
drv = git_path_check_convert(path, check + 2);
eol_attr = git_path_check_eol(path, check + 3);
if (drv && drv->clean)
filter = drv->clean;
}
ret |= apply_filter(path, src, len, dst, filter); ret |= apply_filter(path, src, len, dst, filter);
if (ret) { if (ret) {
src = dst->buf; src = dst->buf;
len = dst->len; len = dst->len;
} }
crlf_action = input_crlf_action(crlf_action, eol_attr); ca.crlf_action = input_crlf_action(ca.crlf_action, ca.eol_attr);
ret |= crlf_to_git(path, src, len, dst, crlf_action, checksafe); ret |= crlf_to_git(path, src, len, dst, ca.crlf_action, checksafe);
if (ret) { if (ret) {
src = dst->buf; src = dst->buf;
len = dst->len; len = dst->len;
} }
return ret | ident_to_git(path, src, len, dst, ident); return ret | ident_to_git(path, src, len, dst, ca.ident);
} }
static int convert_to_working_tree_internal(const char *path, const char *src, static int convert_to_working_tree_internal(const char *path, const char *src,
size_t len, struct strbuf *dst, size_t len, struct strbuf *dst,
int normalizing) int normalizing)
{ {
struct git_attr_check check[NUM_CONV_ATTRS]; int ret = 0;
enum crlf_action crlf_action = CRLF_GUESS;
enum eol eol_attr = EOL_UNSET;
int ident = 0, ret = 0;
const char *filter = NULL; const char *filter = NULL;
struct conv_attrs ca;
setup_convert_check(check); convert_attrs(&ca, path);
if (!git_checkattr(path, ARRAY_SIZE(check), check)) { if (ca.drv)
struct convert_driver *drv; filter = ca.drv->smudge;
crlf_action = git_path_check_crlf(path, check + 4);
if (crlf_action == CRLF_GUESS)
crlf_action = git_path_check_crlf(path, check + 0);
ident = git_path_check_ident(path, check + 1);
drv = git_path_check_convert(path, check + 2);
eol_attr = git_path_check_eol(path, check + 3);
if (drv && drv->smudge)
filter = drv->smudge;
}
ret |= ident_to_worktree(path, src, len, dst, ident); ret |= ident_to_worktree(path, src, len, dst, ca.ident);
if (ret) { if (ret) {
src = dst->buf; src = dst->buf;
len = dst->len; len = dst->len;
@ -792,8 +789,8 @@ static int convert_to_working_tree_internal(const char *path, const char *src,
* is a smudge filter. The filter might expect CRLFs. * is a smudge filter. The filter might expect CRLFs.
*/ */
if (filter || !normalizing) { if (filter || !normalizing) {
crlf_action = input_crlf_action(crlf_action, eol_attr); ca.crlf_action = input_crlf_action(ca.crlf_action, ca.eol_attr);
ret |= crlf_to_worktree(path, src, len, dst, crlf_action); ret |= crlf_to_worktree(path, src, len, dst, ca.crlf_action);
if (ret) { if (ret) {
src = dst->buf; src = dst->buf;
len = dst->len; len = dst->len;