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Merge branch 'jn/v0-with-extensions-fix' into master

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In 2.28-rc0, we corrected a bug that some repository extensions are
honored by mistake even in a version 0 repositories (these
configuration variables in extensions.* namespace were supposed to
have special meaning in repositories whose version numbers are 1 or
higher), but this was a bit too big a change.

* jn/v0-with-extensions-fix:
  repository: allow repository format upgrade with extensions
  Revert "check_repository_format_gently(): refuse extensions for old repositories"
This commit is contained in:
Junio C Hamano
2020-07-16 17:58:42 -07:00
parent b6a658bd00 62f2eca606
commit d13b7f2198
3 changed files with 23 additions and 17 deletions
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24
setup.c
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@ -455,7 +455,6 @@ static int check_repo_format(const char *var, const char *value, void *vdata)
if (strcmp(var, "core.repositoryformatversion") == 0)
data->version = git_config_int(var, value);
else if (skip_prefix(var, "extensions.", &ext)) {
data->has_extensions = 1;
/*
* record any known extensions here; otherwise,
* we fall through to recording it as unknown, and
@ -507,15 +506,9 @@ static int check_repository_format_gently(const char *gitdir, struct repository_
die("%s", err.buf);
}
if (candidate->version >= 1) {
repository_format_precious_objects = candidate->precious_objects;
set_repository_format_partial_clone(candidate->partial_clone);
repository_format_worktree_config = candidate->worktree_config;
} else {
repository_format_precious_objects = 0;
set_repository_format_partial_clone(NULL);
repository_format_worktree_config = 0;
}
repository_format_precious_objects = candidate->precious_objects;
set_repository_format_partial_clone(candidate->partial_clone);
repository_format_worktree_config = candidate->worktree_config;
string_list_clear(&candidate->unknown_extensions, 0);
if (repository_format_worktree_config) {
@ -559,13 +552,16 @@ int upgrade_repository_format(int target_version)
if (repo_fmt.version >= target_version)
return 0;
if (verify_repository_format(&repo_fmt, &err) < 0 ||
(!repo_fmt.version && repo_fmt.has_extensions)) {
warning("unable to upgrade repository format from %d to %d: %s",
repo_fmt.version, target_version, err.buf);
if (verify_repository_format(&repo_fmt, &err) < 0) {
error("cannot upgrade repository format from %d to %d: %s",
repo_fmt.version, target_version, err.buf);
strbuf_release(&err);
return -1;
}
if (!repo_fmt.version && repo_fmt.unknown_extensions.nr)
return error("cannot upgrade repository format: "
"unknown extension %s",
repo_fmt.unknown_extensions.items[0].string);
strbuf_addf(&repo_version, "%d", target_version);
git_config_set("core.repositoryformatversion", repo_version.buf);