This replaces "git-verify-tag.sh" with "builtin-verify-tag.c".
Signal SIGPIPE is ignored because the program sometimes was
stopped because that signal when writing the input for gpg.
Signed-off-by: Carlos Rica <jasampler@xxxxxxxxx>
---
Comments are welcomed.
Makefile | 3 +-
builtin-verify-tag.c | 113 ++++++++++++++++++++
builtin.h | 1 +
.../examples/git-verify-tag.sh | 0
git.c | 1 +
5 files changed, 117 insertions(+), 1 deletions(-)
create mode 100644 builtin-verify-tag.c
rename git-verify-tag.sh => contrib/examples/git-verify-tag.sh (100%)
diff --git a/Makefile b/Makefile
index 73b487f..c6ed79f 100644
--- a/Makefile
+++ b/Makefile
@@ -206,7 +206,7 @@ SCRIPT_SH = \
git-pull.sh git-rebase.sh git-rebase--interactive.sh \
git-repack.sh git-request-pull.sh git-reset.sh \
git-sh-setup.sh \
- git-tag.sh git-verify-tag.sh \
+ git-tag.sh \
git-am.sh \
git-merge.sh git-merge-stupid.sh git-merge-octopus.sh \
git-merge-resolve.sh git-merge-ours.sh \
@@ -367,6 +367,7 @@ BUILTIN_OBJS = \
builtin-update-ref.o \
builtin-upload-archive.o \
builtin-verify-pack.o \
+ builtin-verify-tag.o \
builtin-write-tree.o \
builtin-show-ref.o \
builtin-pack-refs.o
diff --git a/builtin-verify-tag.c b/builtin-verify-tag.c
new file mode 100644
index 0000000..586f28a
--- /dev/null
+++ b/builtin-verify-tag.c
@@ -0,0 +1,113 @@
+/*
+ * Builtin "git verify-tag"
+ *
+ * Copyright (c) 2007 Carlos Rica <jasampler@xxxxxxxxx>
+ *
+ * Based on git-verify-tag.sh
+ */
+#include "cache.h"
+#include "builtin.h"
+#include "tag.h"
+#include "run-command.h"
+#include <signal.h>
+
+static const char builtin_verify_tag_usage[] =
+ "git-verify-tag [-v|--verbose] <tag>...";
+
+#define PGP_SIGNATURE "-----BEGIN PGP SIGNATURE-----"
+
+static int run_gpg_verify(const char *buf, unsigned long size, int verbose)
+{
+ struct child_process gpg;
+ const char *args_gpg[] = {"gpg", "--verify", "FILE", "-", NULL};
+ char *path, *eol;
+ size_t len;
+ int fd, ret;
+
+ path = xstrdup(git_path("VTAG_TMP"));
+ fd = open(path, O_CREAT | O_TRUNC | O_WRONLY, 0600);
+ if (fd < 0)
+ return error("could not create temporary file '%s': %s",
+ path, strerror(errno));
+ if (write_in_full(fd, buf, size) < 0)
+ return error("failed writing temporary file '%s': %s",
+ path, strerror(errno));
+ close(fd);
+
+ /* find the length without signature */
+ len = 0;
+ while (len < size && prefixcmp(buf + len, PGP_SIGNATURE "\n")) {
+ eol = memchr(buf + len, '\n', size - len);
+ len += eol ? eol - (buf + len) + 1 : size - len;
+ }
+ if (verbose)
+ write_in_full(1, buf, len);
+
+ memset(&gpg, 0, sizeof(gpg));
+ gpg.argv = args_gpg;
+ gpg.in = -1;
+ gpg.out = 1;
+ args_gpg[2] = path;
+ if (start_command(&gpg))
+ return error("could not run gpg.");
+
+ write_in_full(gpg.in, buf, len);
+ close(gpg.in);
+ gpg.close_in = 0;
+ ret = finish_command(&gpg);
+
+ remove(path);
+ free(path);
+
+ return ret;
+}
+
+static int verify_tag(const char *name, int verbose)
+{
+ enum object_type type;
+ unsigned char sha1[20];
+ char *buf;
+ unsigned long size;
+ int ret;
+
+ if (get_sha1(name, sha1))
+ return error("tag '%s' not found.", name);
+
+ type = sha1_object_info(sha1, NULL);
+ if (type <= OBJ_NONE)
+ return error("%s: bad object type.", name);
+ if (type != OBJ_TAG)
+ return error("%s: cannot verify a non-tag object of type %s.",
+ name, typename(type));
+
+ buf = read_sha1_file(sha1, &type, &size);
+ if (!buf)
+ return error("%s: unable to read file.", name);
+
+ ret = run_gpg_verify(buf, size, verbose);
+
+ free(buf);
+ return ret;
+}
+
+int cmd_verify_tag(int argc, const char **argv, const char *prefix)
+{
+ int i, verbose = 0, had_error = 0;
+
+ git_config(git_default_config);
+
+ if (argc == 1)
+ usage(builtin_verify_tag_usage);
+
+ i = 1;
+ if (!strcmp(argv[i], "-v") || !strcmp(argv[i], "--verbose")) {
+ verbose = 1;
+ i++;
+ }
+
+ signal(SIGPIPE, SIG_IGN);
+ while (i < argc)
+ if (verify_tag(argv[i++], verbose))
+ had_error = 1;
+ return had_error;
+}
diff --git a/builtin.h b/builtin.h
index 4cc228d..cb860a0 100644
--- a/builtin.h
+++ b/builtin.h
@@ -76,6 +76,7 @@ extern int cmd_update_index(int argc, const char **argv, const char *prefix);
extern int cmd_update_ref(int argc, const char **argv, const char *prefix);
extern int cmd_upload_archive(int argc, const char **argv, const char *prefix);
extern int cmd_upload_tar(int argc, const char **argv, const char *prefix);
+extern int cmd_verify_tag(int argc, const char **argv, const char *prefix);
extern int cmd_version(int argc, const char **argv, const char *prefix);
extern int cmd_whatchanged(int argc, const char **argv, const char *prefix);
extern int cmd_write_tree(int argc, const char **argv, const char *prefix);
diff --git a/git-verify-tag.sh b/contrib/examples/git-verify-tag.sh
similarity index 100%
rename from git-verify-tag.sh
rename to contrib/examples/git-verify-tag.sh
diff --git a/git.c b/git.c
index a647f9c..1dfe120 100644
--- a/git.c
+++ b/git.c
@@ -368,6 +368,7 @@ static void handle_internal_command(int argc, const char **argv)
{ "update-index", cmd_update_index, RUN_SETUP },
{ "update-ref", cmd_update_ref, RUN_SETUP },
{ "upload-archive", cmd_upload_archive },
+ { "verify-tag", cmd_verify_tag, RUN_SETUP },
{ "version", cmd_version },
{ "whatchanged", cmd_whatchanged, RUN_SETUP | USE_PAGER },
{ "write-tree", cmd_write_tree, RUN_SETUP },
--
1.5.0
-
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