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

[PATCH v2 07/10] init: use setup.c's repo version verification

From
Jeff King <peff@peff.net>
Date
Mar 11, 2016, 22:37 UTC
Message-ID
<20160311223710.GG449@sigill.intra.peff.net>
In-Reply-To
<20160311223620.GA7963@sigill.intra.peff.net>

We check our templates to make sure they are from a version of git we understand (otherwise we would init a repository we cannot ourselves run in!). But our simple integer check has fallen behind the times. Let's use the helpers that setup.c provides to do it right.

Signed-off-by: Jeff King <peff@peff.net>
---
 builtin/init-db.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/builtin/init-db.c b/builtin/init-db.c
index e9b2256..d9934f3 100644
--- a/builtin/init-db.c
+++ b/builtin/init-db.c
@@ -95,6 +95,8 @@ static void copy_templates(const char *template_dir)
 	struct strbuf path = STRBUF_INIT;
 	struct strbuf template_path = STRBUF_INIT;
 	size_t template_len;
+	struct repository_format template_format;
+	struct strbuf err = STRBUF_INIT;
 	DIR *dir;
 	char *to_free = NULL;
 
@@ -121,17 +123,18 @@ static void copy_templates(const char *template_dir)
 
 	/* Make sure that template is from the correct vintage */
 	strbuf_addstr(&template_path, "config");
-	repository_format_version = 0;
-	git_config_from_file(check_repository_format_version,
-			     template_path.buf, NULL);
+	read_repository_format(&template_format, template_path.buf);
 	strbuf_setlen(&template_path, template_len);
 
-	if (repository_format_version &&
-	    repository_format_version != GIT_REPO_VERSION) {
-		warning(_("not copying templates of "
-			"a wrong format version %d from '%s'"),
-			repository_format_version,
-			template_dir);
+	/*
+	 * No mention of version at all is OK, but anything else should be
+	 * verified.
+	 */
+	if (template_format.version >= 0 &&
+	    verify_repository_format(&template_format, &err) < 0) {
+		warning(_("not copying templates from '%s': %s"),
+			  template_dir, err.buf);
+		strbuf_release(&err);
 		goto close_free_return;
 	}
 
-- 
2.8.0.rc2.328.g39e2a47
Previous: Jeff KingNext: Jeff King
Message 9 of 12 in “cleaning up check_repository_format_gently”
  1. 0/10 cleaning up check_repository_format_gentlyJeff King, Mar 11, 2016
  2. 01/10 setup: document check_repository_format()Jeff King, Mar 11, 2016
  3. 02/10 wrap shared_repository global in get/set accessorsJeff King, Mar 11, 2016
  4. 03/10 lazily load core.sharedrepositoryJeff King, Mar 11, 2016
  5. 04/10 check_repository_format_gently: stop using git_config_earlyJeff King, Mar 11, 2016
  6. 05/10 config: drop git_config_earlyJeff King, Mar 11, 2016
  7. Junio C HamanoMar 11, 2016
  8. 06/10 setup: refactor repo format reading and verificationJeff King, Mar 11, 2016
  9. 07/10 init: use setup.c's repo version verificationJeff King, Mar 11, 2016
  10. 08/10 setup: unify repository version callbacksJeff King, Mar 11, 2016
  11. 09/10 setup: drop repository_format_version globalJeff King, Mar 11, 2016
  12. 10/10 verify_repository_format: mark messages for translationJeff King, Mar 11, 2016

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.