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config: refresh the values on write

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When writing out, parse the resulting file instead of adding or
replacing the value locally. This has the effect of reading external
changes as well.
This commit is contained in:
Carlos Martín Nieto 2014-03-31 08:53:56 +02:00
parent 0500a1ef4e
commit eaf3703401
2 changed files with 18 additions and 83 deletions
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99
src/config_file.c
View File

@ -395,7 +395,6 @@ static int config_iterator_new(
static int config_set(git_config_backend *cfg, const char *name, const char *value)
{
cvar_t *var = NULL, *old_var = NULL;
diskfile_backend *b = (diskfile_backend *)cfg;
git_strmap *values = b->header.values;
char *key, *esc_value = NULL;
@ -412,67 +411,38 @@ static int config_set(git_config_backend *cfg, const char *name, const char *val
pos = git_strmap_lookup_index(values, key);
if (git_strmap_valid_index(values, pos)) {
cvar_t *existing = git_strmap_value_at(values, pos);
char *tmp = NULL;
git__free(key);
if (existing->next != NULL) {
git__free(key);
giterr_set(GITERR_CONFIG, "Multivar incompatible with simple set");
return -1;
}
/* don't update if old and new values already match */
if ((!existing->entry->value && !value) ||
(existing->entry->value && value && !strcmp(existing->entry->value, value)))
(existing->entry->value && value &&
!strcmp(existing->entry->value, value))) {
git__free(key);
return 0;
if (value) {
tmp = git__strdup(value);
GITERR_CHECK_ALLOC(tmp);
esc_value = escape_value(value);
GITERR_CHECK_ALLOC(esc_value);
}
git__free((void *)existing->entry->value);
existing->entry->value = tmp;
ret = config_write(b, existing->entry->name, NULL, esc_value);
git__free(esc_value);
return ret;
}
var = git__malloc(sizeof(cvar_t));
GITERR_CHECK_ALLOC(var);
memset(var, 0x0, sizeof(cvar_t));
var->entry = git__malloc(sizeof(git_config_entry));
GITERR_CHECK_ALLOC(var->entry);
memset(var->entry, 0x0, sizeof(git_config_entry));
var->entry->name = key;
var->entry->value = NULL;
/* No early returns due to sanity checks, let's write it out and refresh */
if (value) {
var->entry->value = git__strdup(value);
GITERR_CHECK_ALLOC(var->entry->value);
esc_value = escape_value(value);
GITERR_CHECK_ALLOC(esc_value);
}
if ((ret = config_write(b, key, NULL, esc_value)) < 0) {
git__free(esc_value);
cvar_free(var);
return ret;
}
if ((ret = config_write(b, key, NULL, esc_value)) < 0)
goto out;
ret = config_refresh(cfg);
out:
git__free(esc_value);
git_strmap_insert2(values, key, var, old_var, rval);
if (rval < 0)
return -1;
if (old_var != NULL)
cvar_free(old_var);
return 0;
git__free(key);
return ret;
}
/*
@ -500,8 +470,6 @@ static int config_get(const git_config_backend *cfg, const char *key, const git_
static int config_set_multivar(
git_config_backend *cfg, const char *name, const char *regexp, const char *value)
{
int replaced = 0;
cvar_t *var, *newvar;
diskfile_backend *b = (diskfile_backend *)cfg;
git_strmap *values = b->header.values;
char *key;
@ -522,8 +490,6 @@ static int config_set_multivar(
return result;
}
var = git_strmap_value_at(values, pos);
result = regcomp(&preg, regexp, REG_EXTENDED);
if (result < 0) {
git__free(key);
@ -532,44 +498,13 @@ static int config_set_multivar(
return -1;
}
for (;;) {
if (regexec(&preg, var->entry->value, 0, NULL, 0) == 0) {
char *tmp = git__strdup(value);
GITERR_CHECK_ALLOC(tmp);
/* If we do have it, set call config_write() and reload */
if ((result = config_write(b, key, &preg, value)) < 0)
goto out;
git__free((void *)var->entry->value);
var->entry->value = tmp;
replaced = 1;
}
if (var->next == NULL)
break;
var = var->next;
}
/* If we've reached the end of the variables and we haven't found it yet, we need to append it */
if (!replaced) {
newvar = git__malloc(sizeof(cvar_t));
GITERR_CHECK_ALLOC(newvar);
memset(newvar, 0x0, sizeof(cvar_t));
newvar->entry = git__malloc(sizeof(git_config_entry));
GITERR_CHECK_ALLOC(newvar->entry);
memset(newvar->entry, 0x0, sizeof(git_config_entry));
newvar->entry->name = git__strdup(var->entry->name);
GITERR_CHECK_ALLOC(newvar->entry->name);
newvar->entry->value = git__strdup(value);
GITERR_CHECK_ALLOC(newvar->entry->value);
newvar->entry->level = var->entry->level;
var->next = newvar;
}
result = config_write(b, key, &preg, value);
result = config_refresh(cfg);
out:
git__free(key);
regfree(&preg);

2
tests/config/write.c
View File

@ -322,7 +322,7 @@ void test_config_write__outside_change(void)
cl_git_pass(git_config_set_int32(cfg, "new.value", 7));
cl_git_pass(git_config_get_int32(&tmp, cfg, "old.value"));
cl_assert_equal_i(5, tmp);
cl_assert_equal_i(6, tmp);
cl_git_pass(git_config_refresh(cfg));