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-rw-r--r--config.c167
1 files changed, 137 insertions, 30 deletions
diff --git a/config.c b/config.c
index b330c7a..77a0fd2 100644
--- a/config.c
+++ b/config.c
@@ -30,15 +30,12 @@
#include "pager.h"
#include "path.h"
#include "utf8.h"
-#include "dir.h"
#include "color.h"
-#include "replace-object.h"
#include "refs.h"
#include "setup.h"
#include "strvec.h"
#include "trace2.h"
#include "wildmatch.h"
-#include "worktree.h"
#include "ws.h"
#include "write-or-die.h"
@@ -98,7 +95,6 @@ static long config_file_ftell(struct config_source *conf)
return ftell(conf->u.file);
}
-
static int config_buf_fgetc(struct config_source *conf)
{
if (conf->u.buf.pos < conf->u.buf.len)
@@ -821,7 +817,8 @@ static int get_next_char(struct config_source *cs)
static char *parse_value(struct config_source *cs)
{
- int quote = 0, comment = 0, space = 0;
+ int quote = 0, comment = 0;
+ size_t trim_len = 0;
strbuf_reset(&cs->value);
for (;;) {
@@ -831,13 +828,17 @@ static char *parse_value(struct config_source *cs)
cs->linenr--;
return NULL;
}
+ if (trim_len)
+ strbuf_setlen(&cs->value, trim_len);
return cs->value.buf;
}
if (comment)
continue;
if (isspace(c) && !quote) {
+ if (!trim_len)
+ trim_len = cs->value.len;
if (cs->value.len)
- space++;
+ strbuf_addch(&cs->value, c);
continue;
}
if (!quote) {
@@ -846,8 +847,8 @@ static char *parse_value(struct config_source *cs)
continue;
}
}
- for (; space; space--)
- strbuf_addch(&cs->value, ' ');
+ if (trim_len)
+ trim_len = 0;
if (c == '\\') {
c = get_next_char(cs);
switch (c) {
@@ -873,7 +874,7 @@ static char *parse_value(struct config_source *cs)
continue;
}
if (c == '"') {
- quote = 1-quote;
+ quote = 1 - quote;
continue;
}
strbuf_addch(&cs->value, c);
@@ -1386,10 +1387,15 @@ static int git_default_core_config(const char *var, const char *value,
return 0;
}
if (!strcmp(var, "core.checkstat")) {
+ if (!value)
+ return config_error_nonbool(var);
if (!strcasecmp(value, "default"))
check_stat = 1;
else if (!strcasecmp(value, "minimal"))
check_stat = 0;
+ else
+ return error(_("invalid value for '%s': '%s'"),
+ var, value);
}
if (!strcmp(var, "core.quotepath")) {
@@ -1410,8 +1416,19 @@ static int git_default_core_config(const char *var, const char *value,
if (!strcmp(var, "core.attributesfile"))
return git_config_pathname(&git_attributes_file, var, value);
- if (!strcmp(var, "core.hookspath"))
+ if (!strcmp(var, "core.hookspath")) {
+ if (ctx->kvi && ctx->kvi->scope == CONFIG_SCOPE_LOCAL &&
+ git_env_bool("GIT_CLONE_PROTECTION_ACTIVE", 0))
+ die(_("active `core.hooksPath` found in the local "
+ "repository config:\n\t%s\nFor security "
+ "reasons, this is disallowed by default.\nIf "
+ "this is intentional and the hook should "
+ "actually be run, please\nrun the command "
+ "again with "
+ "`GIT_CLONE_PROTECTION_ACTIVE=false`"),
+ value);
return git_config_pathname(&git_hooks_path, var, value);
+ }
if (!strcmp(var, "core.bare")) {
is_bare_repository_cfg = git_config_bool(var, value);
@@ -1546,12 +1563,12 @@ static int git_default_core_config(const char *var, const char *value,
return 0;
}
- if (!strcmp(var, "core.checkroundtripencoding")) {
- check_roundtrip_encoding = xstrdup(value);
- return 0;
- }
+ if (!strcmp(var, "core.checkroundtripencoding"))
+ return git_config_string(&check_roundtrip_encoding, var, value);
if (!strcmp(var, "core.notesref")) {
+ if (!value)
+ return config_error_nonbool(var);
notes_ref_name = xstrdup(value);
return 0;
}
@@ -1559,24 +1576,29 @@ static int git_default_core_config(const char *var, const char *value,
if (!strcmp(var, "core.editor"))
return git_config_string(&editor_program, var, value);
- if (!strcmp(var, "core.commentchar")) {
+ if (!strcmp(var, "core.commentchar") ||
+ !strcmp(var, "core.commentstring")) {
if (!value)
return config_error_nonbool(var);
else if (!strcasecmp(value, "auto"))
auto_comment_line_char = 1;
- else if (value[0] && !value[1]) {
- comment_line_char = value[0];
+ else if (value[0]) {
+ if (strchr(value, '\n'))
+ return error(_("%s cannot contain newline"), var);
+ comment_line_str = xstrdup(value);
auto_comment_line_char = 0;
} else
- return error(_("core.commentChar should only be one ASCII character"));
+ return error(_("%s must have at least one character"), var);
return 0;
}
if (!strcmp(var, "core.askpass"))
return git_config_string(&askpass_program, var, value);
- if (!strcmp(var, "core.excludesfile"))
+ if (!strcmp(var, "core.excludesfile")) {
+ free((char *)excludes_file);
return git_config_pathname(&excludes_file, var, value);
+ }
if (!strcmp(var, "core.whitespace")) {
if (!value)
@@ -1619,6 +1641,8 @@ static int git_default_core_config(const char *var, const char *value,
}
if (!strcmp(var, "core.createobject")) {
+ if (!value)
+ return config_error_nonbool(var);
if (!strcmp(value, "rename"))
object_creation_mode = OBJECT_CREATION_USES_RENAMES;
else if (!strcmp(value, "link"))
@@ -1984,7 +2008,27 @@ char *git_system_config(void)
return system_config;
}
-void git_global_config(char **user_out, char **xdg_out)
+char *git_global_config(void)
+{
+ char *user_config, *xdg_config;
+
+ git_global_config_paths(&user_config, &xdg_config);
+ if (!user_config) {
+ free(xdg_config);
+ return NULL;
+ }
+
+ if (access_or_warn(user_config, R_OK, 0) && xdg_config &&
+ !access_or_warn(xdg_config, R_OK, 0)) {
+ free(user_config);
+ return xdg_config;
+ } else {
+ free(xdg_config);
+ return user_config;
+ }
+}
+
+void git_global_config_paths(char **user_out, char **xdg_out)
{
char *user_config = xstrdup_or_null(getenv("GIT_CONFIG_GLOBAL"));
char *xdg_config = NULL;
@@ -2037,7 +2081,7 @@ static int do_git_config_sequence(const struct config_options *opts,
data, CONFIG_SCOPE_SYSTEM,
NULL);
- git_global_config(&user_config, &xdg_config);
+ git_global_config_paths(&user_config, &xdg_config);
if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK))
ret += git_config_from_file_with_options(fn, xdg_config, data,
@@ -2978,6 +3022,7 @@ static ssize_t write_section(int fd, const char *key,
}
static ssize_t write_pair(int fd, const char *key, const char *value,
+ const char *comment,
const struct config_store_data *store)
{
int i;
@@ -3018,7 +3063,11 @@ static ssize_t write_pair(int fd, const char *key, const char *value,
strbuf_addch(&sb, value[i]);
break;
}
- strbuf_addf(&sb, "%s\n", quote);
+
+ if (comment)
+ strbuf_addf(&sb, "%s%s\n", quote, comment);
+ else
+ strbuf_addf(&sb, "%s\n", quote);
ret = write_in_full(fd, sb.buf, sb.len);
strbuf_release(&sb);
@@ -3107,9 +3156,9 @@ static void maybe_remove_section(struct config_store_data *store,
}
int git_config_set_in_file_gently(const char *config_filename,
- const char *key, const char *value)
+ const char *key, const char *comment, const char *value)
{
- return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0);
+ return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, comment, 0);
}
void git_config_set_in_file(const char *config_filename,
@@ -3130,7 +3179,7 @@ int repo_config_set_worktree_gently(struct repository *r,
if (r->repository_format_worktree_config) {
char *file = repo_git_path(r, "config.worktree");
int ret = git_config_set_multivar_in_file_gently(
- file, key, value, NULL, 0);
+ file, key, value, NULL, NULL, 0);
free(file);
return ret;
}
@@ -3145,6 +3194,62 @@ void git_config_set(const char *key, const char *value)
}
/*
+ * The ownership rule is that the caller will own the string
+ * if it receives a piece of memory different from what it passed
+ * as the parameter.
+ */
+const char *git_config_prepare_comment_string(const char *comment)
+{
+ size_t leading_blanks;
+
+ if (!comment)
+ return NULL;
+
+ if (strchr(comment, '\n'))
+ die(_("no multi-line comment allowed: '%s'"), comment);
+
+ /*
+ * If it begins with one or more leading whitespace characters
+ * followed by '#", the comment string is used as-is.
+ *
+ * If it begins with '#', a SP is inserted between the comment
+ * and the value the comment is about.
+ *
+ * Otherwise, the value is followed by a SP followed by '#'
+ * followed by SP and then the comment string comes.
+ */
+
+ leading_blanks = strspn(comment, " \t");
+ if (leading_blanks && comment[leading_blanks] == '#')
+ ; /* use it as-is */
+ else if (comment[0] == '#')
+ comment = xstrfmt(" %s", comment);
+ else
+ comment = xstrfmt(" # %s", comment);
+
+ return comment;
+}
+
+static void validate_comment_string(const char *comment)
+{
+ size_t leading_blanks;
+
+ if (!comment)
+ return;
+ /*
+ * The front-end must have massaged the comment string
+ * properly before calling us.
+ */
+ if (strchr(comment, '\n'))
+ BUG("multi-line comments are not permitted: '%s'", comment);
+
+ leading_blanks = strspn(comment, " \t");
+ if (!leading_blanks || comment[leading_blanks] != '#')
+ BUG("comment must begin with one or more SP followed by '#': '%s'",
+ comment);
+}
+
+/*
* If value==NULL, unset in (remove from) config,
* if value_pattern!=NULL, disregard key/value pairs where value does not match.
* if value_pattern==CONFIG_REGEX_NONE, do not match any existing values
@@ -3172,6 +3277,7 @@ void git_config_set(const char *key, const char *value)
int git_config_set_multivar_in_file_gently(const char *config_filename,
const char *key, const char *value,
const char *value_pattern,
+ const char *comment,
unsigned flags)
{
int fd = -1, in_fd = -1;
@@ -3182,6 +3288,8 @@ int git_config_set_multivar_in_file_gently(const char *config_filename,
size_t contents_sz;
struct config_store_data store = CONFIG_STORE_INIT;
+ validate_comment_string(comment);
+
/* parse-key returns negative; flip the sign to feed exit(3) */
ret = 0 - git_config_parse_key(key, &store.key, &store.baselen);
if (ret)
@@ -3222,7 +3330,7 @@ int git_config_set_multivar_in_file_gently(const char *config_filename,
free(store.key);
store.key = xstrdup(key);
if (write_section(fd, key, &store) < 0 ||
- write_pair(fd, key, value, &store) < 0)
+ write_pair(fd, key, value, comment, &store) < 0)
goto write_err_out;
} else {
struct stat st;
@@ -3376,7 +3484,7 @@ int git_config_set_multivar_in_file_gently(const char *config_filename,
if (write_section(fd, key, &store) < 0)
goto write_err_out;
}
- if (write_pair(fd, key, value, &store) < 0)
+ if (write_pair(fd, key, value, comment, &store) < 0)
goto write_err_out;
}
@@ -3414,7 +3522,6 @@ out_free:
write_err_out:
ret = write_error(get_lock_file_path(&lock));
goto out_free;
-
}
void git_config_set_multivar_in_file(const char *config_filename,
@@ -3422,7 +3529,7 @@ void git_config_set_multivar_in_file(const char *config_filename,
const char *value_pattern, unsigned flags)
{
if (!git_config_set_multivar_in_file_gently(config_filename, key, value,
- value_pattern, flags))
+ value_pattern, NULL, flags))
return;
if (value)
die(_("could not set '%s' to '%s'"), key, value);
@@ -3445,7 +3552,7 @@ int repo_config_set_multivar_gently(struct repository *r, const char *key,
int res = git_config_set_multivar_in_file_gently(file,
key, value,
value_pattern,
- flags);
+ NULL, flags);
free(file);
return res;
}