Obtain the primary key fingerprint off VALIDSIG status message,
and expose it via %GP format.
Signed-off-by: Michał Górny <mgo...@gentoo.org>
---
Documentation/pretty-formats.txt | 2 ++
gpg-interface.c | 16 +++++++++++++++-
gpg-interface.h | 1 +
pretty.c | 4 ++++
4 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt
index 8ab7d6dd1..417b638cd 100644
--- a/Documentation/pretty-formats.txt
+++ b/Documentation/pretty-formats.txt
@@ -154,6 +154,8 @@ endif::git-rev-list[]
- '%GS': show the name of the signer for a signed commit
- '%GK': show the key used to sign a signed commit
- '%GF': show the fingerprint of the key used to sign a signed commit
+- '%GP': show the fingerprint of the primary key whose subkey was used
+ to sign a signed commit
- '%gD': reflog selector, e.g., `refs/stash@{1}` or
`refs/stash@{2 minutes ago`}; the format follows the rules described
for the `-g` option. The portion before the `@` is the refname as
diff --git a/gpg-interface.c b/gpg-interface.c
index a406484e4..8ed274533 100644
--- a/gpg-interface.c
+++ b/gpg-interface.c
@@ -74,6 +74,7 @@ void signature_check_clear(struct signature_check *sigc)
FREE_AND_NULL(sigc->signer);
FREE_AND_NULL(sigc->key);
FREE_AND_NULL(sigc->fingerprint);
+ FREE_AND_NULL(sigc->primary_key_fingerprint);
}
/* An exclusive status -- only one of them can appear in output */
@@ -108,7 +109,7 @@ static void parse_gpg_output(struct signature_check *sigc)
{
const char *buf = sigc->gpg_status;
const char *line, *next;
- int i;
+ int i, j;
int seen_exclusive_status = 0;
/* Iterate over all lines */
@@ -147,6 +148,18 @@ static void parse_gpg_output(struct signature_check *sigc)
next = strchrnul(line, ' ');
free(sigc->fingerprint);
sigc->fingerprint = xmemdupz(line, next
- line);
+
+ /* Skip interim fields */
+ for (j = 9; j > 0; j--) {
+ if (!*next)
+ break;
+ line = next + 1;
+ next = strchrnul(line, ' ');
+ }
+
+ next = strchrnul(line, '\n');
+ free(sigc->primary_key_fingerprint);
+ sigc->primary_key_fingerprint =
xmemdupz(line, next - line);
}
break;
@@ -165,6 +178,7 @@ static void parse_gpg_output(struct signature_check *sigc)
*/
sigc->result = 'E';
/* Clear partial data to avoid confusion */
+ FREE_AND_NULL(sigc->primary_key_fingerprint);
FREE_AND_NULL(sigc->fingerprint);
FREE_AND_NULL(sigc->signer);
FREE_AND_NULL(sigc->key);
diff --git a/gpg-interface.h b/gpg-interface.h
index 8ce614fc9..3e624ec28 100644
--- a/gpg-interface.h
+++ b/gpg-interface.h
@@ -24,6 +24,7 @@ struct signature_check {
char *signer;
char *key;
char *fingerprint;
+ char *primary_key_fingerprint;
};
void signature_check_clear(struct signature_check *sigc);
diff --git a/pretty.c b/pretty.c
index 4567b5321..b83a3ecd2 100644
--- a/pretty.c
+++ b/pretty.c
@@ -1260,6 +1260,10 @@ static size_t format_commit_one(struct strbuf *sb, /* in
UTF-8 */
if (c->signature_check.fingerprint)
strbuf_addstr(sb,
c->signature_check.fingerprint);
break;
+ case 'P':
+ if (c->signature_check.primary_key_fingerprint)
+ strbuf_addstr(sb,
c->signature_check.primary_key_fingerprint);
+ break;
default:
return 0;
}
--
2.19.1
