Code

Merge branch 'maint'
[git.git] / builtin-tag.c
index c272ad0f1d98bdbbd8dfdc813e031321ee9cac12..f2853d08c77368b37b40c7ea51f5a124208d385f 100644 (file)
 #include "parse-options.h"
 
 static const char * const git_tag_usage[] = {
-       "git-tag [-a|-s|-u <key-id>] [-f] [-m <msg>|-F <file>] <tagname> [<head>]",
-       "git-tag -d <tagname>...",
-       "git-tag [-n [<num>]] -l [<pattern>]",
-       "git-tag -v <tagname>...",
+       "git tag [-a|-s|-u <key-id>] [-f] [-m <msg>|-F <file>] <tagname> [<head>]",
+       "git tag -d <tagname>...",
+       "git tag -l [-n[<num>]] [<pattern>]",
+       "git tag -v <tagname>...",
        NULL
 };
 
 static char signingkey[1000];
 
-static void launch_editor(const char *path, struct strbuf *buffer)
-{
-       const char *editor, *terminal;
-       struct child_process child;
-       const char *args[3];
-
-       editor = getenv("GIT_EDITOR");
-       if (!editor && editor_program)
-               editor = editor_program;
-       if (!editor)
-               editor = getenv("VISUAL");
-       if (!editor)
-               editor = getenv("EDITOR");
-
-       terminal = getenv("TERM");
-       if (!editor && (!terminal || !strcmp(terminal, "dumb"))) {
-               fprintf(stderr,
-               "Terminal is dumb but no VISUAL nor EDITOR defined.\n"
-               "Please supply the message using either -m or -F option.\n");
-               exit(1);
-       }
-
-       if (!editor)
-               editor = "vi";
-
-       memset(&child, 0, sizeof(child));
-       child.argv = args;
-       args[0] = editor;
-       args[1] = path;
-       args[2] = NULL;
-
-       if (run_command(&child))
-               die("There was a problem with the editor %s.", editor);
-
-       if (strbuf_read_file(buffer, path, 0) < 0)
-               die("could not read message file '%s': %s",
-                   path, strerror(errno));
-}
-
 struct tag_filter {
        const char *pattern;
        int lines;
@@ -188,9 +149,10 @@ static int do_sign(struct strbuf *buffer)
        const char *args[4];
        char *bracket;
        int len;
+       int i, j;
 
        if (!*signingkey) {
-               if (strlcpy(signingkey, git_committer_info(1),
+               if (strlcpy(signingkey, git_committer_info(IDENT_ERROR_ON_NO_NAME),
                                sizeof(signingkey)) > sizeof(signingkey) - 1)
                        return error("committer info too long.");
                bracket = strchr(signingkey, '>');
@@ -216,18 +178,25 @@ static int do_sign(struct strbuf *buffer)
 
        if (write_in_full(gpg.in, buffer->buf, buffer->len) != buffer->len) {
                close(gpg.in);
+               close(gpg.out);
                finish_command(&gpg);
                return error("gpg did not accept the tag data");
        }
        close(gpg.in);
-       gpg.close_in = 0;
        len = strbuf_read(buffer, gpg.out, 1024);
+       close(gpg.out);
 
        if (finish_command(&gpg) || !len || len < 0)
                return error("gpg failed to sign the tag");
 
-       if (len < 0)
-               return error("could not read the entire signature from gpg.");
+       /* Strip CR from the line endings, in case we are on Windows. */
+       for (i = j = 0; i < buffer->len; i++)
+               if (buffer->buf[i] != '\r') {
+                       if (i != j)
+                               buffer->buf[j] = buffer->buf[i];
+                       j++;
+               }
+       strbuf_setlen(buffer, j);
 
        return 0;
 }
@@ -238,18 +207,22 @@ static const char tag_template[] =
        "# Write a tag message\n"
        "#\n";
 
-static int git_tag_config(const char *var, const char *value)
+static void set_signingkey(const char *value)
+{
+       if (strlcpy(signingkey, value, sizeof(signingkey)) >= sizeof(signingkey))
+               die("signing key value too long (%.10s...)", value);
+}
+
+static int git_tag_config(const char *var, const char *value, void *cb)
 {
        if (!strcmp(var, "user.signingkey")) {
                if (!value)
-                       die("user.signingkey without value");
-               if (strlcpy(signingkey, value, sizeof(signingkey))
-                                               >= sizeof(signingkey))
-                       die("user.signingkey value too long");
+                       return config_error_nonbool(var);
+               set_signingkey(value);
                return 0;
        }
 
-       return git_default_config(var, value);
+       return git_default_config(var, value, cb);
 }
 
 static void write_tag_body(int fd, const unsigned char *sha1)
@@ -282,7 +255,7 @@ static void write_tag_body(int fd, const unsigned char *sha1)
 
 static void create_tag(const unsigned char *object, const char *tag,
                       struct strbuf *buf, int message, int sign,
-                          unsigned char *prev, unsigned char *result)
+                      unsigned char *prev, unsigned char *result)
 {
        enum object_type type;
        char header_buf[1024];
@@ -300,7 +273,7 @@ static void create_tag(const unsigned char *object, const char *tag,
                          sha1_to_hex(object),
                          typename(type),
                          tag,
-                         git_committer_info(1));
+                         git_committer_info(IDENT_ERROR_ON_NO_NAME));
 
        if (header_len > sizeof(header_buf) - 1)
                die("tag header too big.");
@@ -322,7 +295,11 @@ static void create_tag(const unsigned char *object, const char *tag,
                        write_or_die(fd, tag_template, strlen(tag_template));
                close(fd);
 
-               launch_editor(path, buf);
+               if (launch_editor(path, buf, NULL)) {
+                       fprintf(stderr,
+                       "Please supply the message using either -m or -F option.\n");
+                       exit(1);
+               }
 
                unlink(path);
                free(path);
@@ -341,6 +318,24 @@ static void create_tag(const unsigned char *object, const char *tag,
                die("unable to write tag file");
 }
 
+struct msg_arg {
+       int given;
+       struct strbuf buf;
+};
+
+static int parse_msg_arg(const struct option *opt, const char *arg, int unset)
+{
+       struct msg_arg *msg = opt->value;
+
+       if (!arg)
+               return -1;
+       if (msg->buf.len)
+               strbuf_addstr(&(msg->buf), "\n\n");
+       strbuf_addstr(&(msg->buf), arg);
+       msg->given = 1;
+       return 0;
+}
+
 int cmd_tag(int argc, const char **argv, const char *prefix)
 {
        struct strbuf buf;
@@ -350,12 +345,11 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
        struct ref_lock *lock;
 
        int annotate = 0, sign = 0, force = 0, lines = 0,
-                                       delete = 0, verify = 0;
-       char *list = NULL, *msg = NULL, *msgfile = NULL, *keyid = NULL;
-       const char *no_pattern = "NO_PATTERN";
+               list = 0, delete = 0, verify = 0;
+       const char *msgfile = NULL, *keyid = NULL;
+       struct msg_arg msg = { 0, STRBUF_INIT };
        struct option options[] = {
-               { OPTION_STRING, 'l', NULL, &list, "pattern", "list tag names",
-                       PARSE_OPT_OPTARG, NULL, (intptr_t) no_pattern },
+               OPT_BOOLEAN('l', NULL, &list, "list tag names"),
                { OPTION_INTEGER, 'n', NULL, &lines, NULL,
                                "print n lines of each tag message",
                                PARSE_OPT_OPTARG, NULL, 1 },
@@ -365,7 +359,8 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
                OPT_GROUP("Tag creation options"),
                OPT_BOOLEAN('a', NULL, &annotate,
                                        "annotated tag, needs a message"),
-               OPT_STRING('m', NULL, &msg, "msg", "message for the tag"),
+               OPT_CALLBACK('m', NULL, &msg, "msg",
+                            "message for the tag", parse_msg_arg),
                OPT_STRING('F', NULL, &msgfile, "file", "message in a file"),
                OPT_BOOLEAN('s', NULL, &sign, "annotated and GPG-signed tag"),
                OPT_STRING('u', NULL, &keyid, "key-id",
@@ -374,24 +369,32 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
                OPT_END()
        };
 
-       git_config(git_tag_config);
+       git_config(git_tag_config, NULL);
 
        argc = parse_options(argc, argv, options, git_tag_usage, 0);
+       msgfile = parse_options_fix_filename(prefix, msgfile);
+
+       if (keyid) {
+               sign = 1;
+               set_signingkey(keyid);
+       }
+       if (sign)
+               annotate = 1;
 
        if (list)
-               return list_tags(list == no_pattern ? NULL : list, lines);
+               return list_tags(argv[0], lines);
        if (delete)
                return for_each_tag_name(argv, delete_tag);
        if (verify)
                return for_each_tag_name(argv, verify_tag);
 
        strbuf_init(&buf, 0);
-       if (msg || msgfile) {
-               if (msg && msgfile)
+       if (msg.given || msgfile) {
+               if (msg.given && msgfile)
                        die("only one -F or -m option is allowed.");
                annotate = 1;
-               if (msg)
-                       strbuf_addstr(&buf, msg);
+               if (msg.given)
+                       strbuf_addbuf(&buf, &(msg.buf));
                else {
                        if (!strcmp(msgfile, "-")) {
                                if (strbuf_read(&buf, 0, 1024) < 0)
@@ -429,7 +432,8 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
                die("tag '%s' already exists", tag);
 
        if (annotate)
-               create_tag(object, tag, &buf, msg || msgfile, sign, prev, object);
+               create_tag(object, tag, &buf, msg.given || msgfile,
+                          sign, prev, object);
 
        lock = lock_any_ref_for_update(ref, prev, 0);
        if (!lock)