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config: turn die_on_error into caller-facing enum 

The config code has a die_on_error flag, which lets us emit
an error() instead of dying when we see a bogus config file.
But there's no way for a caller of the config code to set
this: it's auto-set based on whether we're reading a file or
a blob.

Instead, let's add it to the config_options struct. When
it's not set (or we have no options) we'll continue to fall
back to the existing file/blob behavior.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2018-06-28 18:05:00 -04:00 committed by Junio C Hamano
parent e3331758f1
commit 66f9722882
2 changed files with 18 additions and 5 deletions
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18
config.c
View File

@ -31,7 +31,7 @@ struct config_source {
enum config_origin_type origin_type;
const char *name;
const char *path;
int die_on_error;
enum config_error_action default_error_action;
int linenr;
int eof;
struct strbuf value;
@ -809,10 +809,18 @@ static int git_parse_source(config_fn_t fn, void *data,
cf->linenr, cf->name);
}
if (cf->die_on_error)
switch (opts && opts->error_action ?
opts->error_action :
cf->default_error_action) {
case CONFIG_ERROR_DIE:
die("%s", error_msg);
else
break;
case CONFIG_ERROR_ERROR:
error_return = error("%s", error_msg);
break;
case CONFIG_ERROR_UNSET:
BUG("config error action unset");
}
free(error_msg);
return error_return;
@ -1520,7 +1528,7 @@ static int do_config_from_file(config_fn_t fn,
top.origin_type = origin_type;
top.name = name;
top.path = path;
top.die_on_error = 1;
top.default_error_action = CONFIG_ERROR_DIE;
top.do_fgetc = config_file_fgetc;
top.do_ungetc = config_file_ungetc;
top.do_ftell = config_file_ftell;
@ -1569,7 +1577,7 @@ int git_config_from_mem(config_fn_t fn, const enum config_origin_type origin_typ
top.origin_type = origin_type;
top.name = name;
top.path = NULL;
top.die_on_error = 0;
top.default_error_action = CONFIG_ERROR_ERROR;
top.do_fgetc = config_buf_fgetc;
top.do_ungetc = config_buf_ungetc;
top.do_ftell = config_buf_ftell;

5
config.h
View File

@ -54,6 +54,11 @@ struct config_options {
const char *git_dir;
config_parser_event_fn_t event_fn;
void *event_fn_data;
enum config_error_action {
CONFIG_ERROR_UNSET = 0, /* use source-specific default */
CONFIG_ERROR_DIE, /* die() on error */
CONFIG_ERROR_ERROR, /* error() on error, return -1 */
} error_action;
};
typedef int (*config_fn_t)(const char *, const char *, void *);