From: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
The new --output-object-format parameter returns the oid in the
specified format.
This is a generally useful plumbing facility. It is useful for writing
test cases and for directly querying the translation maps.
Signed-off-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
---
Documentation/git-rev-parse.txt | 12 ++++++++++++
builtin/rev-parse.c | 23 +++++++++++++++++++++++
2 files changed, 35 insertions(+)
diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt
index f26a7591e373..f0f9021f2a5a 100644
--- a/Documentation/git-rev-parse.txt
+++ b/Documentation/git-rev-parse.txt
@@ -159,6 +159,18 @@ for another option.
unfortunately named tag "master"), and show them as full
refnames (e.g. "refs/heads/master").
+--output-object-format=(sha1|sha256|storage)::
+
+ Allow oids to be input from any object format that the current
+ repository supports.
+
+ Specifying "sha1" translates if necessary and returns a sha1 oid.
+
+ Specifying "sha256" translates if necessary and returns a sha256 oid.
+
+ Specifying "storage" translates if necessary and returns an oid in
+ encoded in the storage hash algorithm.
+
Options for Objects
~~~~~~~~~~~~~~~~~~~
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index 43e96765400c..0ef3e658cc5b 100644
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -25,6 +25,7 @@
#include "submodule.h"
#include "commit-reach.h"
#include "shallow.h"
+#include "object-file-convert.h"
#define DO_REVS 1
#define DO_NOREV 2
@@ -675,6 +676,8 @@ static void print_path(const char *path, const char *prefix, enum format_type fo
int cmd_rev_parse(int argc, const char **argv, const char *prefix)
{
int i, as_is = 0, verify = 0, quiet = 0, revs_count = 0, type = 0;
+ const struct git_hash_algo *output_algo = NULL;
+ const struct git_hash_algo *compat = NULL;
int did_repo_setup = 0;
int has_dashdash = 0;
int output_prefix = 0;
@@ -746,6 +749,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
prepare_repo_settings(the_repository);
the_repository->settings.command_requires_full_index = 0;
+ compat = the_repository->compat_hash_algo;
}
if (!strcmp(arg, "--")) {
@@ -833,6 +837,22 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
flags |= GET_OID_QUIETLY;
continue;
}
+ if (opt_with_value(arg, "--output-object-format", &arg)) {
+ if (!arg)
+ die(_("no object format specified"));
+ if (!strcmp(arg, the_hash_algo->name) ||
+ !strcmp(arg, "storage")) {
+ flags |= GET_OID_HASH_ANY;
+ output_algo = the_hash_algo;
+ continue;
+ }
+ else if (compat && !strcmp(arg, compat->name)) {
+ flags |= GET_OID_HASH_ANY;
+ output_algo = compat;
+ continue;
+ }
+ else die(_("unsupported object format: %s"), arg);
+ }
if (opt_with_value(arg, "--short", &arg)) {
filter &= ~(DO_FLAGS|DO_NOREV);
verify = 1;
@@ -1083,6 +1103,9 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
}
if (!get_oid_with_context(the_repository, name,
flags, &oid, &unused)) {
+ if (output_algo)
+ repo_oid_to_algop(the_repository, &oid,
+ output_algo, &oid);
if (verify)
revs_count++;
else
--
2.41.0
