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Diffstat (limited to 'config.c')
-rw-r--r--config.c313
1 files changed, 243 insertions, 70 deletions
diff --git a/config.c b/config.c
index 49e5250dc5..9ef947e073 100644
--- a/config.c
+++ b/config.c
@@ -12,13 +12,82 @@
#define MAXNAME (256)
-static FILE *config_file;
-static const char *config_file_name;
-static int config_linenr;
-static int config_file_eof;
+typedef struct config_file {
+ struct config_file *prev;
+ FILE *f;
+ const char *name;
+ int linenr;
+ int eof;
+ struct strbuf value;
+ char var[MAXNAME];
+} config_file;
+
+static config_file *cf;
+
static int zlib_compression_seen;
-const char *config_exclusive_filename = NULL;
+#define MAX_INCLUDE_DEPTH 10
+static const char include_depth_advice[] =
+"exceeded maximum include depth (%d) while including\n"
+" %s\n"
+"from\n"
+" %s\n"
+"Do you have circular includes?";
+static int handle_path_include(const char *path, struct config_include_data *inc)
+{
+ int ret = 0;
+ struct strbuf buf = STRBUF_INIT;
+
+ /*
+ * Use an absolute path as-is, but interpret relative paths
+ * based on the including config file.
+ */
+ if (!is_absolute_path(path)) {
+ char *slash;
+
+ if (!cf || !cf->name)
+ return error("relative config includes must come from files");
+
+ slash = find_last_dir_sep(cf->name);
+ if (slash)
+ strbuf_add(&buf, cf->name, slash - cf->name + 1);
+ strbuf_addstr(&buf, path);
+ path = buf.buf;
+ }
+
+ if (!access(path, R_OK)) {
+ if (++inc->depth > MAX_INCLUDE_DEPTH)
+ die(include_depth_advice, MAX_INCLUDE_DEPTH, path,
+ cf && cf->name ? cf->name : "the command line");
+ ret = git_config_from_file(git_config_include, path, inc);
+ inc->depth--;
+ }
+ strbuf_release(&buf);
+ return ret;
+}
+
+int git_config_include(const char *var, const char *value, void *data)
+{
+ struct config_include_data *inc = data;
+ const char *type;
+ int ret;
+
+ /*
+ * Pass along all values, including "include" directives; this makes it
+ * possible to query information on the includes themselves.
+ */
+ ret = inc->fn(var, value, inc->data);
+ if (ret < 0)
+ return ret;
+
+ type = skip_prefix(var, "include.");
+ if (!type)
+ return ret;
+
+ if (!strcmp(type, "path"))
+ ret = handle_path_include(value, inc);
+ return ret;
+}
static void lowercase(char *p)
{
@@ -39,8 +108,8 @@ void git_config_push_parameter(const char *text)
strbuf_release(&env);
}
-static int git_config_parse_parameter(const char *text,
- config_fn_t fn, void *data)
+int git_config_parse_parameter(const char *text,
+ config_fn_t fn, void *data)
{
struct strbuf **pair;
pair = strbuf_split_str(text, '=', 2);
@@ -99,7 +168,7 @@ static int get_next_char(void)
FILE *f;
c = '\n';
- if ((f = config_file) != NULL) {
+ if (cf && ((f = cf->f) != NULL)) {
c = fgetc(f);
if (c == '\r') {
/* DOS like systems */
@@ -110,9 +179,9 @@ static int get_next_char(void)
}
}
if (c == '\n')
- config_linenr++;
+ cf->linenr++;
if (c == EOF) {
- config_file_eof = 1;
+ cf->eof = 1;
c = '\n';
}
}
@@ -121,21 +190,22 @@ static int get_next_char(void)
static char *parse_value(void)
{
- static struct strbuf value = STRBUF_INIT;
int quote = 0, comment = 0, space = 0;
- strbuf_reset(&value);
+ strbuf_reset(&cf->value);
for (;;) {
int c = get_next_char();
if (c == '\n') {
- if (quote)
+ if (quote) {
+ cf->linenr--;
return NULL;
- return value.buf;
+ }
+ return cf->value.buf;
}
if (comment)
continue;
if (isspace(c) && !quote) {
- if (value.len)
+ if (cf->value.len)
space++;
continue;
}
@@ -146,7 +216,7 @@ static char *parse_value(void)
}
}
for (; space; space--)
- strbuf_addch(&value, ' ');
+ strbuf_addch(&cf->value, ' ');
if (c == '\\') {
c = get_next_char();
switch (c) {
@@ -168,14 +238,14 @@ static char *parse_value(void)
default:
return NULL;
}
- strbuf_addch(&value, c);
+ strbuf_addch(&cf->value, c);
continue;
}
if (c == '"') {
quote = 1-quote;
continue;
}
- strbuf_addch(&value, c);
+ strbuf_addch(&cf->value, c);
}
}
@@ -192,7 +262,7 @@ static int get_value(config_fn_t fn, void *data, char *name, unsigned int len)
/* Get the full name */
for (;;) {
c = get_next_char();
- if (config_file_eof)
+ if (cf->eof)
break;
if (!iskeychar(c))
break;
@@ -219,7 +289,7 @@ static int get_extended_base_var(char *name, int baselen, int c)
{
do {
if (c == '\n')
- return -1;
+ goto error_incomplete_line;
c = get_next_char();
} while (isspace(c));
@@ -231,13 +301,13 @@ static int get_extended_base_var(char *name, int baselen, int c)
for (;;) {
int c = get_next_char();
if (c == '\n')
- return -1;
+ goto error_incomplete_line;
if (c == '"')
break;
if (c == '\\') {
c = get_next_char();
if (c == '\n')
- return -1;
+ goto error_incomplete_line;
}
name[baselen++] = c;
if (baselen > MAXNAME / 2)
@@ -248,6 +318,9 @@ static int get_extended_base_var(char *name, int baselen, int c)
if (get_next_char() != ']')
return -1;
return baselen;
+error_incomplete_line:
+ cf->linenr--;
+ return -1;
}
static int get_base_var(char *name)
@@ -256,7 +329,7 @@ static int get_base_var(char *name)
for (;;) {
int c = get_next_char();
- if (config_file_eof)
+ if (cf->eof)
return -1;
if (c == ']')
return baselen;
@@ -274,7 +347,7 @@ static int git_parse_file(config_fn_t fn, void *data)
{
int comment = 0;
int baselen = 0;
- static char var[MAXNAME];
+ char *var = cf->var;
/* U+FEFF Byte Order Mark in UTF8 */
static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf";
@@ -298,7 +371,7 @@ static int git_parse_file(config_fn_t fn, void *data)
}
}
if (c == '\n') {
- if (config_file_eof)
+ if (cf->eof)
return 0;
comment = 0;
continue;
@@ -323,10 +396,10 @@ static int git_parse_file(config_fn_t fn, void *data)
if (get_value(fn, data, var, baselen+1) < 0)
break;
}
- die("bad config file line %d in %s", config_linenr, config_file_name);
+ die("bad config file line %d in %s", cf->linenr, cf->name);
}
-static int parse_unit_factor(const char *end, unsigned long *val)
+static int parse_unit_factor(const char *end, uintmax_t *val)
{
if (!*end)
return 1;
@@ -349,11 +422,23 @@ static int git_parse_long(const char *value, long *ret)
{
if (value && *value) {
char *end;
- long val = strtol(value, &end, 0);
- unsigned long factor = 1;
+ intmax_t val;
+ uintmax_t uval;
+ uintmax_t factor = 1;
+
+ errno = 0;
+ val = strtoimax(value, &end, 0);
+ if (errno == ERANGE)
+ return 0;
if (!parse_unit_factor(end, &factor))
return 0;
- *ret = val * factor;
+ uval = abs(val);
+ uval *= factor;
+ if ((uval > maximum_signed_value_of_type(long)) ||
+ (abs(val) > uval))
+ return 0;
+ val *= factor;
+ *ret = val;
return 1;
}
return 0;
@@ -363,9 +448,19 @@ int git_parse_ulong(const char *value, unsigned long *ret)
{
if (value && *value) {
char *end;
- unsigned long val = strtoul(value, &end, 0);
+ uintmax_t val;
+ uintmax_t oldval;
+
+ errno = 0;
+ val = strtoumax(value, &end, 0);
+ if (errno == ERANGE)
+ return 0;
+ oldval = val;
if (!parse_unit_factor(end, &val))
return 0;
+ if ((val > maximum_unsigned_value_of_type(long)) ||
+ (oldval > val))
+ return 0;
*ret = val;
return 1;
}
@@ -374,8 +469,8 @@ int git_parse_ulong(const char *value, unsigned long *ret)
static void die_bad_config(const char *name)
{
- if (config_file_name)
- die("bad config value for '%s' in %s", name, config_file_name);
+ if (cf && cf->name)
+ die("bad config value for '%s' in %s", name, cf->name);
die("bad config value for '%s'", name);
}
@@ -484,6 +579,9 @@ static int git_default_core_config(const char *var, const char *value)
return 0;
}
+ if (!strcmp(var, "core.attributesfile"))
+ return git_config_pathname(&git_attributes_file, var, value);
+
if (!strcmp(var, "core.bare")) {
is_bare_repository_cfg = git_config_bool(var, value);
return 0;
@@ -543,7 +641,7 @@ static int git_default_core_config(const char *var, const char *value)
if (!strcmp(var, "core.packedgitwindowsize")) {
int pgsz_x2 = getpagesize() * 2;
- packed_git_window_size = git_config_int(var, value);
+ packed_git_window_size = git_config_ulong(var, value);
/* This value must be multiple of (pagesize * 2) */
packed_git_window_size /= pgsz_x2;
@@ -554,21 +652,23 @@ static int git_default_core_config(const char *var, const char *value)
}
if (!strcmp(var, "core.bigfilethreshold")) {
- long n = git_config_int(var, value);
- big_file_threshold = 0 < n ? n : 0;
+ big_file_threshold = git_config_ulong(var, value);
return 0;
}
if (!strcmp(var, "core.packedgitlimit")) {
- packed_git_limit = git_config_int(var, value);
+ packed_git_limit = git_config_ulong(var, value);
return 0;
}
if (!strcmp(var, "core.deltabasecachelimit")) {
- delta_base_cache_limit = git_config_int(var, value);
+ delta_base_cache_limit = git_config_ulong(var, value);
return 0;
}
+ if (!strcmp(var, "core.logpackaccess"))
+ return git_config_string(&log_pack_access, var, value);
+
if (!strcmp(var, "core.autocrlf")) {
if (value && !strcasecmp(value, "input")) {
if (core_eol == EOL_CRLF)
@@ -784,6 +884,10 @@ int git_default_config(const char *var, const char *value, void *dummy)
return 0;
}
+ if (!strcmp(var, "pack.packsizelimit")) {
+ pack_size_limit_cfg = git_config_ulong(var, value);
+ return 0;
+ }
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
@@ -795,13 +899,24 @@ int git_config_from_file(config_fn_t fn, const char *filename, void *data)
ret = -1;
if (f) {
- config_file = f;
- config_file_name = filename;
- config_linenr = 1;
- config_file_eof = 0;
+ config_file top;
+
+ /* push config-file parsing state stack */
+ top.prev = cf;
+ top.f = f;
+ top.name = filename;
+ top.linenr = 1;
+ top.eof = 0;
+ strbuf_init(&top.value, 1024);
+ cf = &top;
+
ret = git_parse_file(fn, data);
+
+ /* pop config-file parsing state stack */
+ strbuf_release(&top.value);
+ cf = top.prev;
+
fclose(f);
- config_file_name = NULL;
}
return ret;
}
@@ -830,9 +945,6 @@ int git_config_early(config_fn_t fn, void *data, const char *repo_config)
int ret = 0, found = 0;
const char *home = NULL;
- /* Setting $GIT_CONFIG makes git read _only_ the given config file. */
- if (config_exclusive_filename)
- return git_config_from_file(fn, config_exclusive_filename, data);
if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) {
ret += git_config_from_file(fn, git_etc_gitconfig(),
data);
@@ -841,12 +953,12 @@ int git_config_early(config_fn_t fn, void *data, const char *repo_config)
home = getenv("HOME");
if (home) {
- char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
+ char buf[PATH_MAX];
+ char *user_config = mksnpath(buf, sizeof(buf), "%s/.gitconfig", home);
if (!access(user_config, R_OK)) {
ret += git_config_from_file(fn, user_config, data);
found += 1;
}
- free(user_config);
}
if (repo_config && !access(repo_config, R_OK)) {
@@ -868,10 +980,26 @@ int git_config_early(config_fn_t fn, void *data, const char *repo_config)
return ret == 0 ? found : ret;
}
-int git_config(config_fn_t fn, void *data)
+int git_config_with_options(config_fn_t fn, void *data,
+ const char *filename, int respect_includes)
{
char *repo_config = NULL;
int ret;
+ struct config_include_data inc = CONFIG_INCLUDE_INIT;
+
+ if (respect_includes) {
+ inc.fn = fn;
+ inc.data = data;
+ fn = git_config_include;
+ data = &inc;
+ }
+
+ /*
+ * If we have a specific filename, use it. Otherwise, follow the
+ * regular lookup sequence.
+ */
+ if (filename)
+ return git_config_from_file(fn, filename, data);
repo_config = git_pathdup("config");
ret = git_config_early(fn, data, repo_config);
@@ -880,6 +1008,11 @@ int git_config(config_fn_t fn, void *data)
return ret;
}
+int git_config(config_fn_t fn, void *data)
+{
+ return git_config_with_options(fn, data, NULL, 1);
+}
+
/*
* Find all the stuff for git_config_set() below.
*/
@@ -909,6 +1042,7 @@ static int store_aux(const char *key, const char *value, void *cb)
{
const char *ep;
size_t section_len;
+ FILE *f = cf->f;
switch (store.state) {
case KEY_SEEN:
@@ -920,7 +1054,7 @@ static int store_aux(const char *key, const char *value, void *cb)
return 1;
}
- store.offset[store.seen] = ftell(config_file);
+ store.offset[store.seen] = ftell(f);
store.seen++;
}
break;
@@ -947,19 +1081,19 @@ static int store_aux(const char *key, const char *value, void *cb)
* Do not increment matches: this is no match, but we
* just made sure we are in the desired section.
*/
- store.offset[store.seen] = ftell(config_file);
+ store.offset[store.seen] = ftell(f);
/* fallthru */
case SECTION_END_SEEN:
case START:
if (matches(key, value)) {
- store.offset[store.seen] = ftell(config_file);
+ store.offset[store.seen] = ftell(f);
store.state = KEY_SEEN;
store.seen++;
} else {
if (strrchr(key, '.') - key == store.baselen &&
!strncmp(key, store.key, store.baselen)) {
store.state = SECTION_SEEN;
- store.offset[store.seen] = ftell(config_file);
+ store.offset[store.seen] = ftell(f);
}
}
}
@@ -1073,6 +1207,12 @@ contline:
return offset;
}
+int git_config_set_in_file(const char *config_filename,
+ const char *key, const char *value)
+{
+ return git_config_set_multivar_in_file(config_filename, key, value, NULL, 0);
+}
+
int git_config_set(const char *key, const char *value)
{
return git_config_set_multivar(key, value, NULL, 0);
@@ -1170,18 +1310,14 @@ out_free_ret_1:
* - the config file is removed and the lock file rename()d to it.
*
*/
-int git_config_set_multivar(const char *key, const char *value,
- const char *value_regex, int multi_replace)
+int git_config_set_multivar_in_file(const char *config_filename,
+ const char *key, const char *value,
+ const char *value_regex, int multi_replace)
{
int fd = -1, in_fd;
int ret;
- char *config_filename;
struct lock_file *lock = NULL;
-
- if (config_exclusive_filename)
- config_filename = xstrdup(config_exclusive_filename);
- else
- config_filename = git_pathdup("config");
+ char *filename_buf = NULL;
/* parse-key returns negative; flip the sign to feed exit(3) */
ret = 0 - git_config_parse_key(key, &store.key, &store.baselen);
@@ -1190,6 +1326,8 @@ int git_config_set_multivar(const char *key, const char *value,
store.multi_replace = multi_replace;
+ if (!config_filename)
+ config_filename = filename_buf = git_pathdup("config");
/*
* The lock serves a purpose in addition to locking: the new
@@ -1359,7 +1497,7 @@ int git_config_set_multivar(const char *key, const char *value,
out_free:
if (lock)
rollback_lock_file(lock);
- free(config_filename);
+ free(filename_buf);
return ret;
write_err_out:
@@ -1368,6 +1506,13 @@ write_err_out:
}
+int git_config_set_multivar(const char *key, const char *value,
+ const char *value_regex, int multi_replace)
+{
+ return git_config_set_multivar_in_file(NULL, key, value, value_regex,
+ multi_replace);
+}
+
static int section_name_match (const char *buf, const char *name)
{
int i = 0, j = 0, dot = 0;
@@ -1407,19 +1552,42 @@ static int section_name_match (const char *buf, const char *name)
return 0;
}
+static int section_name_is_ok(const char *name)
+{
+ /* Empty section names are bogus. */
+ if (!*name)
+ return 0;
+
+ /*
+ * Before a dot, we must be alphanumeric or dash. After the first dot,
+ * anything goes, so we can stop checking.
+ */
+ for (; *name && *name != '.'; name++)
+ if (*name != '-' && !isalnum(*name))
+ return 0;
+ return 1;
+}
+
/* if new_name == NULL, the section is removed instead */
-int git_config_rename_section(const char *old_name, const char *new_name)
+int git_config_rename_section_in_file(const char *config_filename,
+ const char *old_name, const char *new_name)
{
int ret = 0, remove = 0;
- char *config_filename;
- struct lock_file *lock = xcalloc(sizeof(struct lock_file), 1);
+ char *filename_buf = NULL;
+ struct lock_file *lock;
int out_fd;
char buf[1024];
+ FILE *config_file;
+
+ if (new_name && !section_name_is_ok(new_name)) {
+ ret = error("invalid section name: %s", new_name);
+ goto out;
+ }
+
+ if (!config_filename)
+ config_filename = filename_buf = git_pathdup("config");
- if (config_exclusive_filename)
- config_filename = xstrdup(config_exclusive_filename);
- else
- config_filename = git_pathdup("config");
+ lock = xcalloc(sizeof(struct lock_file), 1);
out_fd = hold_lock_file_for_update(lock, config_filename, 0);
if (out_fd < 0) {
ret = error("could not lock config file %s", config_filename);
@@ -1483,10 +1651,15 @@ unlock_and_out:
if (commit_lock_file(lock) < 0)
ret = error("could not commit config file %s", config_filename);
out:
- free(config_filename);
+ free(filename_buf);
return ret;
}
+int git_config_rename_section(const char *old_name, const char *new_name)
+{
+ return git_config_rename_section_in_file(NULL, old_name, new_name);
+}
+
/*
* Call this to report error for your variable that should not
* get a boolean value (i.e. "[my] var" means "true").
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 04:07:55 +0000