verify-commit by default displays human-readable output on standard
error. However, it can also be useful to get access to the raw gpg
status information, which is machine-readable, allowing automated
implementation of signing policy. Add a --raw option to make
verify-commit produce the gpg status information on standard error
instead of the human-readable format.
Signed-off-by: brian m. carlson <sandals@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/git-verify-commit.txt | 4 ++++
builtin/verify-commit.c | 15 ++++++++++-----
gpg-interface.c | 7 +++++--
gpg-interface.h | 1 +
t/t7510-signed-commit.sh | 31 +++++++++++++++++++++++++++++++
5 files changed, 51 insertions(+), 7 deletions(-)
diff --git a/Documentation/git-verify-commit.txt b/Documentation/git-verify-commit.txt
index 9413e28..ecf4da1 100644
--- a/Documentation/git-verify-commit.txt
+++ b/Documentation/git-verify-commit.txt
@@ -16,6 +16,10 @@ Validates the gpg signature created by 'git commit -S'.
OPTIONS
-------
+--raw::
+ Print the raw gpg status output to standard error instead of the normal
+ human-readable output.
+
-v::
--verbose::
Print the contents of the commit object before validating it.
diff --git a/builtin/verify-commit.c b/builtin/verify-commit.c
index 016319a..38bedf8 100644
--- a/builtin/verify-commit.c
+++ b/builtin/verify-commit.c
@@ -18,7 +18,7 @@ static const char * const verify_commit_usage[] = {
NULL
};
-static int run_gpg_verify(const unsigned char *sha1, const char *buf, unsigned long size, int verbose)
+static int run_gpg_verify(const unsigned char *sha1, const char *buf, unsigned long size, unsigned flags)
{
struct signature_check signature_check;
int ret;
@@ -26,13 +26,13 @@ static int run_gpg_verify(const unsigned char *sha1, const char *buf, unsigned l
memset(&signature_check, 0, sizeof(signature_check));
ret = check_commit_signature(lookup_commit(sha1), &signature_check);
- print_signature_buffer(&signature_check, verbose ? GPG_VERIFY_VERBOSE : 0);
+ print_signature_buffer(&signature_check, flags);
signature_check_clear(&signature_check);
return ret;
}
-static int verify_commit(const char *name, int verbose)
+static int verify_commit(const char *name, unsigned flags)
{
enum object_type type;
unsigned char sha1[20];
@@ -50,7 +50,7 @@ static int verify_commit(const char *name, int verbose)
return error("%s: cannot verify a non-commit object of type %s.",
name, typename(type));
- ret = run_gpg_verify(sha1, buf, size, verbose);
+ ret = run_gpg_verify(sha1, buf, size, flags);
free(buf);
return ret;
@@ -67,8 +67,10 @@ static int git_verify_commit_config(const char *var, const char *value, void *cb
int cmd_verify_commit(int argc, const char **argv, const char *prefix)
{
int i = 1, verbose = 0, had_error = 0;
+ unsigned flags = 0;
const struct option verify_commit_options[] = {
OPT__VERBOSE(&verbose, N_("print commit contents")),
+ OPT_BIT(0, "raw", &flags, N_("print raw gpg status output"), GPG_VERIFY_RAW),
OPT_END()
};
@@ -79,11 +81,14 @@ int cmd_verify_commit(int argc, const char **argv, const char *prefix)
if (argc <= i)
usage_with_options(verify_commit_usage, verify_commit_options);
+ if (verbose)
+ flags |= GPG_VERIFY_VERBOSE;
+
/* sometimes the program was terminated because this signal
* was received in the process of writing the gpg input: */
signal(SIGPIPE, SIG_IGN);
while (i < argc)
- if (verify_commit(argv[i++], verbose))
+ if (verify_commit(argv[i++], flags))
had_error = 1;
return had_error;
}
diff --git a/gpg-interface.c b/gpg-interface.c
index e764fb6..3dc2fe3 100644
--- a/gpg-interface.c
+++ b/gpg-interface.c
@@ -87,11 +87,14 @@ int check_signature(const char *payload, size_t plen, const char *signature,
void print_signature_buffer(const struct signature_check *sigc, unsigned flags)
{
+ const char *output = flags & GPG_VERIFY_RAW ?
+ sigc->gpg_status : sigc->gpg_output;
+
if (flags & GPG_VERIFY_VERBOSE && sigc->payload)
fputs(sigc->payload, stdout);
- if (sigc->gpg_output)
- fputs(sigc->gpg_output, stderr);
+ if (output)
+ fputs(output, stderr);
}
/*
diff --git a/gpg-interface.h b/gpg-interface.h
index 1207861..ea68885 100644
--- a/gpg-interface.h
+++ b/gpg-interface.h
@@ -2,6 +2,7 @@
#define GPG_INTERFACE_H
#define GPG_VERIFY_VERBOSE 1
+#define GPG_VERIFY_RAW 2
struct signature_check {
char *payload;
diff --git a/t/t7510-signed-commit.sh b/t/t7510-signed-commit.sh
index 796138f..18e5cf0 100755
--- a/t/t7510-signed-commit.sh
+++ b/t/t7510-signed-commit.sh
@@ -88,6 +88,37 @@ test_expect_success GPG 'verify-commit exits success on untrusted signature' '
grep "not certified" actual
'
+test_expect_success GPG 'verify signatures with --raw' '
+ (
+ for commit in initial second merge fourth-signed fifth-signed sixth-signed seventh-signed
+ do
+ git verify-commit --raw $commit 2>actual &&
+ grep "GOODSIG" actual &&
+ ! grep "BADSIG" actual &&
+ echo $commit OK || exit 1
+ done
+ ) &&
+ (
+ for commit in merge^2 fourth-unsigned sixth-unsigned seventh-unsigned
+ do
+ test_must_fail git verify-commit --raw $commit 2>actual &&
+ ! grep "GOODSIG" actual &&
+ ! grep "BADSIG" actual &&
+ echo $commit OK || exit 1
+ done
+ ) &&
+ (
+ for commit in eighth-signed-alt
+ do
+ git verify-commit --raw $commit 2>actual &&
+ grep "GOODSIG" actual &&
+ ! grep "BADSIG" actual &&
+ grep "TRUST_UNDEFINED" actual &&
+ echo $commit OK || exit 1
+ done
+ )
+'
+
test_expect_success GPG 'show signed commit with signature' '
git show -s initial >commit &&
git show -s --show-signature initial >show &&
--
2.4.0
--
To unsubscribe from this list: send the line "unsubscribe git" in