config: allow giving separate author and committer idents
authorWilliam Hubbs <williamh@gentoo.org>
Mon, 4 Feb 2019 18:48:50 +0000 (12:48 -0600)
committerJunio C Hamano <gitster@pobox.com>
Mon, 4 Feb 2019 20:18:13 +0000 (12:18 -0800)
The author.email, author.name, committer.email and committer.name
settings are analogous to the GIT_AUTHOR_* and GIT_COMMITTER_*
environment variables, but for the git config system. This allows them
to be set separately for each repository.

Git supports setting different authorship and committer
information with environment variables. However, environment variables
are set in the shell, so if different authorship and committer
information is needed for different repositories an external tool is
required.

This adds support to git config for author.email, author.name,
committer.email and committer.name settings so this information
can be set per repository.

Also, it generalizes the fmt_ident function so it can handle author vs
committer identification.

Signed-off-by: William Hubbs <williamh@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Documentation/config/user.txt
blame.c
builtin/am.c
builtin/commit.c
cache.h
config.c
ident.c
log-tree.c
sequencer.c
t/t7517-per-repo-email.sh
index b5b2ba1199c98aaa9bbe9c74ce72c9f9dcb41f82..0557cbbceb8159148e8d0e7ab4771a8f53a67c0a 100644 (file)
@@ -1,12 +1,19 @@
-user.email::
-       Your email address to be recorded in any newly created commits.
-       Can be overridden by the `GIT_AUTHOR_EMAIL`, `GIT_COMMITTER_EMAIL`, and
-       `EMAIL` environment variables.  See linkgit:git-commit-tree[1].
-
 user.name::
-       Your full name to be recorded in any newly created commits.
-       Can be overridden by the `GIT_AUTHOR_NAME` and `GIT_COMMITTER_NAME`
-       environment variables.  See linkgit:git-commit-tree[1].
+user.email::
+author.name::
+author.email::
+committer.name::
+committer.email::
+       The `user.name` and `user.email` variables determine what ends
+       up in the `author` and `committer` field of commit
+       objects.
+       If you need the `author` or `committer` to be different, the
+       `author.name`, `author.email`, `committer.name` or
+       `committer.email` variables can be set.
+       Also, all of these can be overridden by the `GIT_AUTHOR_NAME`,
+       `GIT_AUTHOR_EMAIL`, `GIT_COMMITTER_NAME`,
+       `GIT_COMMITTER_EMAIL` and `EMAIL` environment variables.
+       See linkgit:git-commit-tree[1] for more information.
 
 user.useConfigOnly::
        Instruct Git to avoid trying to guess defaults for `user.email`
diff --git a/blame.c b/blame.c
index 43861437f749849e85d448eba692b42488ec459d..c9c351eb3676adbcd390375b10b5f227fc5ca337 100644 (file)
--- a/blame.c
+++ b/blame.c
@@ -204,7 +204,8 @@ static struct commit *fake_working_tree_commit(struct repository *r,
 
        origin = make_origin(commit, path);
 
-       ident = fmt_ident("Not Committed Yet", "not.committed.yet", NULL, 0);
+       ident = fmt_ident("Not Committed Yet", "not.committed.yet",
+                       WANT_BLANK_IDENT, NULL, 0);
        strbuf_addstr(&msg, "tree 0000000000000000000000000000000000000000\n");
        for (parent = commit->parents; parent; parent = parent->next)
                strbuf_addf(&msg, "parent %s\n",
index 95370313b66daad8cabcc3b855136e29afb3133f..3727d4d267655ea6b98cbff3456948983251e081 100644 (file)
@@ -1594,6 +1594,7 @@ static void do_commit(const struct am_state *state)
        }
 
        author = fmt_ident(state->author_name, state->author_email,
+               WANT_AUTHOR_IDENT,
                        state->ignore_date ? NULL : state->author_date,
                        IDENT_STRICT);
 
index 004b816635bf1628bfe7697f737a22cbcd27622b..f96b90daeb5390b44fd9cef403a6048609fbad66 100644 (file)
@@ -607,7 +607,8 @@ static void determine_author_info(struct strbuf *author_ident)
                set_ident_var(&date, strbuf_detach(&date_buf, NULL));
        }
 
-       strbuf_addstr(author_ident, fmt_ident(name, email, date, IDENT_STRICT));
+       strbuf_addstr(author_ident, fmt_ident(name, email, WANT_AUTHOR_IDENT, date,
+                               IDENT_STRICT));
        assert_split_ident(&author, author_ident);
        export_one("GIT_AUTHOR_NAME", author.name_begin, author.name_end, 0);
        export_one("GIT_AUTHOR_EMAIL", author.mail_begin, author.mail_end, 0);
diff --git a/cache.h b/cache.h
index 49713cc5a5a61bf0749e596b94474f00286dc652..bb78eb9a3aefd377c5d73325793f0453cb427dc4 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -1479,10 +1479,19 @@ int date_overflows(timestamp_t date);
 #define IDENT_STRICT          1
 #define IDENT_NO_DATE         2
 #define IDENT_NO_NAME         4
+
+enum want_ident {
+       WANT_BLANK_IDENT,
+       WANT_AUTHOR_IDENT,
+       WANT_COMMITTER_IDENT
+};
+
 extern const char *git_author_info(int);
 extern const char *git_committer_info(int);
-extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int);
-extern const char *fmt_name(const char *name, const char *email);
+extern const char *fmt_ident(const char *name, const char *email,
+               enum want_ident whose_ident,
+               const char *date_str, int);
+extern const char *fmt_name(enum want_ident);
 extern const char *ident_default_name(void);
 extern const char *ident_default_email(void);
 extern const char *git_editor(void);
index ff521eb27ad243b27c7bd95f3ad7a1b777a4ae00..fd36db77901ccaae9c91a933d98d12bd766cdc8b 100644 (file)
--- a/config.c
+++ b/config.c
@@ -1445,7 +1445,9 @@ int git_default_config(const char *var, const char *value, void *cb)
        if (starts_with(var, "core."))
                return git_default_core_config(var, value, cb);
 
-       if (starts_with(var, "user."))
+       if (starts_with(var, "user.") ||
+           starts_with(var, "author.") ||
+           starts_with(var, "committer."))
                return git_ident_config(var, value, cb);
 
        if (starts_with(var, "i18n."))
diff --git a/ident.c b/ident.c
index 33bcf40644cdf23434a7cb622b6be71bb7cd867c..9c2eb0a2d02ac823a6bf3f01603dfdc7164728c8 100644 (file)
--- a/ident.c
+++ b/ident.c
 static struct strbuf git_default_name = STRBUF_INIT;
 static struct strbuf git_default_email = STRBUF_INIT;
 static struct strbuf git_default_date = STRBUF_INIT;
+static struct strbuf git_author_name = STRBUF_INIT;
+static struct strbuf git_author_email = STRBUF_INIT;
+static struct strbuf git_committer_name = STRBUF_INIT;
+static struct strbuf git_committer_email = STRBUF_INIT;
 static int default_email_is_bogus;
 static int default_name_is_bogus;
 
@@ -355,13 +359,19 @@ N_("\n"
    "\n");
 
 const char *fmt_ident(const char *name, const char *email,
-                     const char *date_str, int flag)
+                     enum want_ident whose_ident, const char *date_str, int flag)
 {
        static struct strbuf ident = STRBUF_INIT;
        int strict = (flag & IDENT_STRICT);
        int want_date = !(flag & IDENT_NO_DATE);
        int want_name = !(flag & IDENT_NO_NAME);
 
+       if (!email) {
+               if (whose_ident == WANT_AUTHOR_IDENT && git_author_email.len)
+                       email = git_author_email.buf;
+               else if (whose_ident == WANT_COMMITTER_IDENT && git_committer_email.len)
+                       email = git_committer_email.buf;
+       }
        if (!email) {
                if (strict && ident_use_config_only
                    && !(ident_config_given & IDENT_MAIL_GIVEN)) {
@@ -377,6 +387,13 @@ const char *fmt_ident(const char *name, const char *email,
 
        if (want_name) {
                int using_default = 0;
+               if (!name) {
+                       if (whose_ident == WANT_AUTHOR_IDENT && git_author_name.len)
+                               name = git_author_name.buf;
+                       else if (whose_ident == WANT_COMMITTER_IDENT &&
+                                       git_committer_name.len)
+                               name = git_committer_name.buf;
+               }
                if (!name) {
                        if (strict && ident_use_config_only
                            && !(ident_config_given & IDENT_NAME_GIVEN)) {
@@ -425,9 +442,25 @@ const char *fmt_ident(const char *name, const char *email,
        return ident.buf;
 }
 
-const char *fmt_name(const char *name, const char *email)
+const char *fmt_name(enum want_ident whose_ident)
 {
-       return fmt_ident(name, email, NULL, IDENT_STRICT | IDENT_NO_DATE);
+       char *name = NULL;
+       char *email = NULL;
+
+       switch (whose_ident) {
+       case WANT_BLANK_IDENT:
+               break;
+       case WANT_AUTHOR_IDENT:
+               name = getenv("GIT_AUTHOR_NAME");
+               email = getenv("GIT_AUTHOR_EMAIL");
+               break;
+       case WANT_COMMITTER_IDENT:
+               name = getenv("GIT_COMMITTER_NAME");
+               email = getenv("GIT_COMMITTER_EMAIL");
+               break;
+       }
+       return fmt_ident(name, email, whose_ident, NULL,
+                       IDENT_STRICT | IDENT_NO_DATE);
 }
 
 const char *git_author_info(int flag)
@@ -438,6 +471,7 @@ const char *git_author_info(int flag)
                author_ident_explicitly_given |= IDENT_MAIL_GIVEN;
        return fmt_ident(getenv("GIT_AUTHOR_NAME"),
                         getenv("GIT_AUTHOR_EMAIL"),
+                        WANT_AUTHOR_IDENT,
                         getenv("GIT_AUTHOR_DATE"),
                         flag);
 }
@@ -450,6 +484,7 @@ const char *git_committer_info(int flag)
                committer_ident_explicitly_given |= IDENT_MAIL_GIVEN;
        return fmt_ident(getenv("GIT_COMMITTER_NAME"),
                         getenv("GIT_COMMITTER_EMAIL"),
+                        WANT_COMMITTER_IDENT,
                         getenv("GIT_COMMITTER_DATE"),
                         flag);
 }
@@ -473,10 +508,45 @@ int author_ident_sufficiently_given(void)
        return ident_is_sufficient(author_ident_explicitly_given);
 }
 
-int git_ident_config(const char *var, const char *value, void *data)
+static int set_ident(const char *var, const char *value)
 {
-       if (!strcmp(var, "user.useconfigonly")) {
-               ident_use_config_only = git_config_bool(var, value);
+       if (!strcmp(var, "author.name")) {
+               if (!value)
+                       return config_error_nonbool(var);
+               strbuf_reset(&git_author_name);
+               strbuf_addstr(&git_author_name, value);
+               author_ident_explicitly_given |= IDENT_NAME_GIVEN;
+               ident_config_given |= IDENT_NAME_GIVEN;
+               return 0;
+       }
+
+       if (!strcmp(var, "author.email")) {
+               if (!value)
+                       return config_error_nonbool(var);
+               strbuf_reset(&git_author_email);
+               strbuf_addstr(&git_author_email, value);
+               author_ident_explicitly_given |= IDENT_MAIL_GIVEN;
+               ident_config_given |= IDENT_MAIL_GIVEN;
+               return 0;
+       }
+
+       if (!strcmp(var, "committer.name")) {
+               if (!value)
+                       return config_error_nonbool(var);
+               strbuf_reset(&git_committer_name);
+               strbuf_addstr(&git_committer_name, value);
+               committer_ident_explicitly_given |= IDENT_NAME_GIVEN;
+               ident_config_given |= IDENT_NAME_GIVEN;
+               return 0;
+       }
+
+       if (!strcmp(var, "committer.email")) {
+               if (!value)
+                       return config_error_nonbool(var);
+               strbuf_reset(&git_committer_email);
+               strbuf_addstr(&git_committer_email, value);
+               committer_ident_explicitly_given |= IDENT_MAIL_GIVEN;
+               ident_config_given |= IDENT_MAIL_GIVEN;
                return 0;
        }
 
@@ -505,6 +575,16 @@ int git_ident_config(const char *var, const char *value, void *data)
        return 0;
 }
 
+int git_ident_config(const char *var, const char *value, void *data)
+{
+       if (!strcmp(var, "user.useconfigonly")) {
+               ident_use_config_only = git_config_bool(var, value);
+               return 0;
+       }
+
+       return set_ident(var, value);
+}
+
 static int buf_cmp(const char *a_begin, const char *a_end,
                   const char *b_begin, const char *b_end)
 {
index 10680c139eeb530bc0e70e0c1713767b6ca5be21..43ef4f430099c6c64904677690912bb9ad96d841 100644 (file)
@@ -687,8 +687,7 @@ void show_log(struct rev_info *opt)
         */
        if (ctx.need_8bit_cte >= 0 && opt->add_signoff)
                ctx.need_8bit_cte =
-                       has_non_ascii(fmt_name(getenv("GIT_COMMITTER_NAME"),
-                                              getenv("GIT_COMMITTER_EMAIL")));
+                       has_non_ascii(fmt_name(WANT_COMMITTER_IDENT));
        ctx.date_mode = opt->date_mode;
        ctx.date_mode_explicit = opt->date_mode_explicit;
        ctx.abbrev = opt->diffopt.abbrev;
index f5370f49659a3da10c8092c0b1682da08a1fab07..3505d52bb99a6429607ec363d2731cfaf0c1c011 100644 (file)
@@ -836,7 +836,7 @@ static const char *read_author_ident(struct strbuf *buf)
        }
 
        strbuf_reset(&out);
-       strbuf_addstr(&out, fmt_ident(name, email, date, 0));
+       strbuf_addstr(&out, fmt_ident(name, email, WANT_AUTHOR_IDENT, date, 0));
        strbuf_swap(buf, &out);
        strbuf_release(&out);
        free(name);
@@ -4087,8 +4087,7 @@ void append_signoff(struct strbuf *msgbuf, size_t ignore_footer, unsigned flag)
        int has_footer;
 
        strbuf_addstr(&sob, sign_off_header);
-       strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"),
-                               getenv("GIT_COMMITTER_EMAIL")));
+       strbuf_addstr(&sob, fmt_name(WANT_COMMITTER_IDENT));
        strbuf_addch(&sob, '\n');
 
        if (!ignore_footer)
index 231b8cc19d6342f54490b0c385150b7cb318494f..b2401cec3e3be01d0973dea72f8154b5824762aa 100755 (executable)
@@ -85,4 +85,78 @@ test_expect_success REBASE_P \
        test_must_fail git rebase -p master
 '
 
+test_expect_success 'author.name overrides user.name' '
+       test_config user.name user &&
+       test_config user.email user@example.com &&
+       test_config author.name author &&
+       test_commit author-name-override-user &&
+       echo author user@example.com > expected-author &&
+       echo user user@example.com > expected-committer &&
+       git log --format="%an %ae" -1 > actual-author &&
+       git log --format="%cn %ce" -1 > actual-committer &&
+       test_cmp expected-author actual-author &&
+       test_cmp expected-committer actual-committer
+'
+
+test_expect_success 'author.email overrides user.email' '
+       test_config user.name user &&
+       test_config user.email user@example.com &&
+       test_config author.email author@example.com &&
+       test_commit author-email-override-user &&
+       echo user author@example.com > expected-author &&
+       echo user user@example.com > expected-committer &&
+       git log --format="%an %ae" -1 > actual-author &&
+       git log --format="%cn %ce" -1 > actual-committer &&
+       test_cmp expected-author actual-author &&
+       test_cmp expected-committer actual-committer
+'
+
+test_expect_success 'committer.name overrides user.name' '
+       test_config user.name user &&
+       test_config user.email user@example.com &&
+       test_config committer.name committer &&
+       test_commit committer-name-override-user &&
+       echo user user@example.com > expected-author &&
+       echo committer user@example.com > expected-committer &&
+       git log --format="%an %ae" -1 > actual-author &&
+       git log --format="%cn %ce" -1 > actual-committer &&
+       test_cmp expected-author actual-author &&
+       test_cmp expected-committer actual-committer
+'
+
+test_expect_success 'committer.email overrides user.email' '
+       test_config user.name user &&
+       test_config user.email user@example.com &&
+       test_config committer.email committer@example.com &&
+       test_commit committer-email-override-user &&
+       echo user user@example.com > expected-author &&
+       echo user committer@example.com > expected-committer &&
+       git log --format="%an %ae" -1 > actual-author &&
+       git log --format="%cn %ce" -1 > actual-committer &&
+       test_cmp expected-author actual-author &&
+       test_cmp expected-committer actual-committer
+'
+
+test_expect_success 'author and committer environment variables override config settings' '
+       test_config user.name user &&
+       test_config user.email user@example.com &&
+       test_config author.name author &&
+       test_config author.email author@example.com &&
+       test_config committer.name committer &&
+       test_config committer.email committer@example.com &&
+       GIT_AUTHOR_NAME=env_author && export GIT_AUTHOR_NAME &&
+       GIT_AUTHOR_EMAIL=env_author@example.com && export GIT_AUTHOR_EMAIL &&
+       GIT_COMMITTER_NAME=env_commit && export GIT_COMMITTER_NAME &&
+       GIT_COMMITTER_EMAIL=env_commit@example.com && export GIT_COMMITTER_EMAIL &&
+       test_commit env-override-conf &&
+       echo env_author env_author@example.com > expected-author &&
+       echo env_commit env_commit@example.com > expected-committer &&
+       git log --format="%an %ae" -1 > actual-author &&
+       git log --format="%cn %ce" -1 > actual-committer &&
+       sane_unset GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL &&
+       sane_unset GIT_COMMITTER_NAME GIT_COMMITTER_EMAIL &&
+       test_cmp expected-author actual-author &&
+       test_cmp expected-committer actual-committer
+'
+
 test_done