git/list[1] front-page[2] threads[3] people[4] search[5] about
 

[PATCH 1/4] config: turn die_on_error into caller-facing enum

From
Jeff King <peff@peff.net>
Date
Jun 28, 2018, 22:05 UTC
Message-ID
<20180628220500.GA5524@sigill.intra.peff.net>
In-Reply-To
<20180628220332.GA5128@sigill.intra.peff.net>

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>
---
 config.c | 18 +++++++++++++-----
 config.h |  5 +++++
 2 files changed, 18 insertions(+), 5 deletions(-)
diff --git a/config.c b/config.c
index a0a6ae1980..b5c23369d0 100644
--- a/config.c
+++ b/config.c
@@ -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;
diff --git a/config.h b/config.h
index 626d4654bd..ce75bf1e5c 100644
--- a/config.h
+++ b/config.h
@@ -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 *);
-- 
2.18.0.604.g8c4f59c959
Previous: Jeff KingNext: Jeff King
Message 10 of 31 in “fsck: check skiplist for object in fsck_blob()”
  1. fsck: check skiplist for object in fsck_blob()Ramsay Jones, Jun 27, 2018
  2. Jeff KingJun 28, 2018
  3. Junio C HamanoJun 28, 2018
  4. Jeff KingJun 28, 2018
  5. Ramsay JonesJun 28, 2018
  6. Junio C HamanoJun 28, 2018
  7. Jeff KingJun 28, 2018
  8. Ramsay JonesJun 28, 2018
  9. Jeff KingJun 28, 2018
  10. 1/4 config: turn die_on_error into caller-facing enumJeff King, Jun 28, 2018
  11. 2/4 config: add CONFIG_ERROR_SILENT handlerJeff King, Jun 28, 2018
  12. 3/4 config: add options parameter to git_config_from_memJeff King, Jun 28, 2018
  13. 4/4 fsck: silence stderr when parsing .gitmodulesJeff King, Jun 28, 2018
  14. Jeff KingJun 28, 2018
  15. Ramsay JonesJun 29, 2018
  16. Ramsay JonesJun 29, 2018
  17. Jeff KingJul 3, 2018
  18. Ramsay JonesJul 4, 2018
  19. Jeff KingJul 7, 2018
  20. Ramsay JonesJul 11, 2018
  21. Ramsay JonesJul 13, 2018
  22. Jeff KingJul 13, 2018
  23. Jeff KingJul 13, 2018
  24. Ramsay JonesJul 13, 2018
  25. Jeff KingJul 13, 2018
  26. 1/2 fsck: split ".gitmodules too large" error from parse failureJeff King, Jul 13, 2018
  27. 2/2 fsck: downgrade gitmodulesParse default to "info"Jeff King, Jul 13, 2018
  28. Stefan BellerJul 13, 2018
  29. Junio C HamanoJul 16, 2018
  30. Jeff KingJul 16, 2018
  31. Junio C HamanoJul 16, 2018

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.