+/*
+ * Handle git attributes. See gitattributes(5) for a description of
+ * the file syntax, and Documentation/technical/api-gitattributes.txt
+ * for a description of the API.
+ *
+ * One basic design decision here is that we are not going to support
+ * an insanely large number of attributes.
+ */
+
#define NO_THE_INDEX_COMPATIBILITY_MACROS
#include "cache.h"
#include "exec_cmd.h"
#include "attr.h"
+#include "dir.h"
const char git_attr__true[] = "(builtin)true";
const char git_attr__false[] = "\0(builtin)false";
#define ATTR__UNSET NULL
#define ATTR__UNKNOWN git_attr__unknown
-static const char *attributes_file;
-
-/*
- * The basic design decision here is that we are not going to have
- * insanely large number of attributes.
- *
- * This is a randomly chosen prime.
- */
+/* This is a randomly chosen prime. */
#define HASHSIZE 257
#ifndef DEBUG_ATTR
return git_attr_internal(name, strlen(name));
}
-/*
- * .gitattributes file is one line per record, each of which is
- *
- * (1) glob pattern.
- * (2) whitespace
- * (3) whitespace separated list of attribute names, each of which
- * could be prefixed with '-' to mean "set to false", '!' to mean
- * "unset".
- */
-
/* What does a matched pattern decide? */
struct attr_state {
struct git_attr *attr;
const char *setto;
};
+/*
+ * One rule, as from a .gitattributes file.
+ *
+ * If is_macro is true, then u.attr is a pointer to the git_attr being
+ * defined.
+ *
+ * If is_macro is false, then u.pattern points at the filename pattern
+ * to which the rule applies. (The memory pointed to is part of the
+ * memory block allocated for the match_attr instance.)
+ *
+ * In either case, num_attr is the number of attributes affected by
+ * this rule, and state is an array listing them. The attributes are
+ * listed as they appear in the file (macros unexpanded).
+ */
struct match_attr {
union {
char *pattern;
static const char blank[] = " \t\r\n";
+/*
+ * Parse a whitespace-delimited attribute state (i.e., "attr",
+ * "-attr", "!attr", or "attr=value") from the string starting at src.
+ * If e is not NULL, write the results to *e. Return a pointer to the
+ * remainder of the string (with leading whitespace removed), or NULL
+ * if there was an error.
+ */
static const char *parse_attr(const char *src, int lineno, const char *cp,
- int *num_attr, struct match_attr *res)
+ struct attr_state *e)
{
const char *ep, *equals;
int len;
len = equals - cp;
else
len = ep - cp;
- if (!res) {
+ if (!e) {
if (*cp == '-' || *cp == '!') {
cp++;
len--;
return NULL;
}
} else {
- struct attr_state *e;
-
- e = &(res->state[*num_attr]);
if (*cp == '-' || *cp == '!') {
e->setto = (*cp == '-') ? ATTR__FALSE : ATTR__UNSET;
cp++;
}
e->attr = git_attr_internal(cp, len);
}
- (*num_attr)++;
return ep + strspn(ep, blank);
}
int lineno, int macro_ok)
{
int namelen;
- int num_attr;
- const char *cp, *name;
+ int num_attr, i;
+ const char *cp, *name, *states;
struct match_attr *res = NULL;
- int pass;
int is_macro;
cp = line + strspn(line, blank);
else
is_macro = 0;
- for (pass = 0; pass < 2; pass++) {
- /* pass 0 counts and allocates, pass 1 fills */
- num_attr = 0;
- cp = name + namelen;
- cp = cp + strspn(cp, blank);
- while (*cp) {
- cp = parse_attr(src, lineno, cp, &num_attr, res);
- if (!cp)
- return NULL;
- }
- if (pass)
- break;
- res = xcalloc(1,
- sizeof(*res) +
- sizeof(struct attr_state) * num_attr +
- (is_macro ? 0 : namelen + 1));
- if (is_macro)
- res->u.attr = git_attr_internal(name, namelen);
- else {
- res->u.pattern = (char *)&(res->state[num_attr]);
- memcpy(res->u.pattern, name, namelen);
- res->u.pattern[namelen] = 0;
- }
- res->is_macro = is_macro;
- res->num_attr = num_attr;
+ states = name + namelen;
+ states += strspn(states, blank);
+
+ /* First pass to count the attr_states */
+ for (cp = states, num_attr = 0; *cp; num_attr++) {
+ cp = parse_attr(src, lineno, cp, NULL);
+ if (!cp)
+ return NULL;
}
+
+ res = xcalloc(1,
+ sizeof(*res) +
+ sizeof(struct attr_state) * num_attr +
+ (is_macro ? 0 : namelen + 1));
+ if (is_macro)
+ res->u.attr = git_attr_internal(name, namelen);
+ else {
+ res->u.pattern = (char *)&(res->state[num_attr]);
+ memcpy(res->u.pattern, name, namelen);
+ res->u.pattern[namelen] = 0;
+ }
+ res->is_macro = is_macro;
+ res->num_attr = num_attr;
+
+ /* Second pass to fill the attr_states */
+ for (cp = states, i = 0; *cp; i++) {
+ cp = parse_attr(src, lineno, cp, &(res->state[i]));
+ }
+
return res;
}
return !git_env_bool("GIT_ATTR_NOSYSTEM", 0);
}
-static int git_attr_config(const char *var, const char *value, void *dummy)
-{
- if (!strcmp(var, "core.attributesfile"))
- return git_config_pathname(&attributes_file, var, value);
-
- return 0;
-}
-
static void bootstrap_attr_stack(void)
{
if (!attr_stack) {
}
}
- git_config(git_attr_config, NULL);
- if (attributes_file) {
- elem = read_attr_from_file(attributes_file, 1);
+ if (git_attributes_file) {
+ elem = read_attr_from_file(git_attributes_file, 1);
if (elem) {
elem->origin = NULL;
elem->prev = attr_stack;
if (!is_bare_repository() || direction == GIT_ATTR_INDEX) {
elem = read_attr(GITATTRIBUTES_FILE, 1);
- elem->origin = strdup("");
+ elem->origin = xstrdup("");
elem->prev = attr_stack;
attr_stack = elem;
debug_push(elem);
{
struct attr_stack *elem, *info;
int dirlen, len;
- struct strbuf pathbuf;
const char *cp;
cp = strrchr(path, '/');
else
dirlen = cp - path;
- strbuf_init(&pathbuf, dirlen+2+strlen(GITATTRIBUTES_FILE));
-
/*
* At the bottom of the attribute stack is the built-in
* set of attribute definitions, followed by the contents
* Read from parent directories and push them down
*/
if (!is_bare_repository() || direction == GIT_ATTR_INDEX) {
- while (1) {
- char *cp;
+ struct strbuf pathbuf = STRBUF_INIT;
+ while (1) {
len = strlen(attr_stack->origin);
if (dirlen <= len)
break;
- strbuf_reset(&pathbuf);
- strbuf_add(&pathbuf, path, dirlen);
+ cp = memchr(path + len + 1, '/', dirlen - len - 1);
+ if (!cp)
+ cp = path + dirlen;
+ strbuf_add(&pathbuf, path, cp - path);
strbuf_addch(&pathbuf, '/');
- cp = strchr(pathbuf.buf + len + 1, '/');
- strcpy(cp + 1, GITATTRIBUTES_FILE);
+ strbuf_addstr(&pathbuf, GITATTRIBUTES_FILE);
elem = read_attr(pathbuf.buf, 0);
- *cp = '\0';
- elem->origin = strdup(pathbuf.buf);
+ strbuf_setlen(&pathbuf, cp - path);
+ elem->origin = strbuf_detach(&pathbuf, NULL);
elem->prev = attr_stack;
attr_stack = elem;
debug_push(elem);
}
- }
- strbuf_release(&pathbuf);
+ strbuf_release(&pathbuf);
+ }
/*
* Finally push the "info" one at the top of the stack.
/* match basename */
const char *basename = strrchr(pathname, '/');
basename = basename ? basename + 1 : pathname;
- return (fnmatch(pattern, basename, 0) == 0);
+ return (fnmatch_icase(pattern, basename, 0) == 0);
}
/*
* match with FNM_PATHNAME; the pattern has base implicitly
return 0;
if (baselen != 0)
baselen++;
- return fnmatch(pattern, pathname + baselen, FNM_PATHNAME) == 0;
+ return fnmatch_icase(pattern, pathname + baselen, FNM_PATHNAME) == 0;
}
static int macroexpand_one(int attr_nr, int rem);