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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-22 16:42:18 (GMT)
committerJunio C Hamano <gitster@pobox.com>2010-02-22 22:29:41 (GMT)
commit81b50f3ce40bfdd66e5d967bf82be001039a9a98 (patch)
tree7e86bb81e83c9fad73dcbdaa0ef33038137b4274 /builtin/verify-tag.c
parent241b9254e1c8ff071d8054f8b6fbe1883b389d69 (diff)
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Move 'builtin-*' into a 'builtin/' subdirectory
This shrinks the top-level directory a bit, and makes it much more pleasant to use auto-completion on the thing. Instead of [torvalds@nehalem git]$ em buil<tab> Display all 180 possibilities? (y or n) [torvalds@nehalem git]$ em builtin-sh builtin-shortlog.c builtin-show-branch.c builtin-show-ref.c builtin-shortlog.o builtin-show-branch.o builtin-show-ref.o [torvalds@nehalem git]$ em builtin-shor<tab> builtin-shortlog.c builtin-shortlog.o [torvalds@nehalem git]$ em builtin-shortlog.c you get [torvalds@nehalem git]$ em buil<tab> [type] builtin/ builtin.h [torvalds@nehalem git]$ em builtin [auto-completes to] [torvalds@nehalem git]$ em builtin/sh<tab> [type] shortlog.c shortlog.o show-branch.c show-branch.o show-ref.c show-ref.o [torvalds@nehalem git]$ em builtin/sho [auto-completes to] [torvalds@nehalem git]$ em builtin/shor<tab> [type] shortlog.c shortlog.o [torvalds@nehalem git]$ em builtin/shortlog.c which doesn't seem all that different, but not having that annoying break in "Display all 180 possibilities?" is quite a relief. NOTE! If you do this in a clean tree (no object files etc), or using an editor that has auto-completion rules that ignores '*.o' files, you won't see that annoying 'Display all 180 possibilities?' message - it will just show the choices instead. I think bash has some cut-off around 100 choices or something. So the reason I see this is that I'm using an odd editory, and thus don't have the rules to cut down on auto-completion. But you can simulate that by using 'ls' instead, or something similar. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/verify-tag.c')
-rw-r--r--builtin/verify-tag.c114
1 files changed, 114 insertions, 0 deletions
diff --git a/builtin/verify-tag.c b/builtin/verify-tag.c
new file mode 100644
index 0000000..9f482c2
--- /dev/null
+++ b/builtin/verify-tag.c
@@ -0,0 +1,114 @@
+/*
+ * Builtin "git verify-tag"
+ *
+ * Copyright (c) 2007 Carlos Rica <jasampler@gmail.com>
+ *
+ * Based on git-verify-tag.sh
+ */
+#include "cache.h"
+#include "builtin.h"
+#include "tag.h"
+#include "run-command.h"
+#include <signal.h>
+#include "parse-options.h"
+
+static const char * const verify_tag_usage[] = {
+ "git verify-tag [-v|--verbose] <tag>...",
+ NULL
+};
+
+#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[PATH_MAX], *eol;
+ size_t len;
+ int fd, ret;
+
+ fd = git_mkstemp(path, PATH_MAX, ".git_vtag_tmpXXXXXX");
+ 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)) {
+ 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;
+ args_gpg[2] = path;
+ if (start_command(&gpg)) {
+ unlink(path);
+ return error("could not run gpg.");
+ }
+
+ write_in_full(gpg.in, buf, len);
+ close(gpg.in);
+ ret = finish_command(&gpg);
+
+ unlink_or_warn(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_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 = 1, verbose = 0, had_error = 0;
+ const struct option verify_tag_options[] = {
+ OPT__VERBOSE(&verbose),
+ OPT_END()
+ };
+
+ git_config(git_default_config, NULL);
+
+ argc = parse_options(argc, argv, prefix, verify_tag_options,
+ verify_tag_usage, PARSE_OPT_KEEP_ARGV0);
+ if (argc <= i)
+ usage_with_options(verify_tag_usage, verify_tag_options);
+
+ /* 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_tag(argv[i++], verbose))
+ had_error = 1;
+ return had_error;
+}