commit: Show committer if automatic

To warn the user in case he/she might be using an unintended
committer identity.

Signed-off-by: Santi Béjar <sbejar@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-commit.c b/builtin-commit.c
index 4e51b9e..a113eb0 100644 (file)
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -446,6 +446,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix)
        FILE *fp;
        const char *hook_arg1 = NULL;
        const char *hook_arg2 = NULL;
+       int ident_shown = 0;
 
        if (!no_verify && run_hook(index_file, "pre-commit", NULL))
                return 0;
@@ -527,6 +528,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix)
 
        determine_author_info();
 
+       /* This checks if committer ident is explicitly given */
+       git_committer_info(0);
        if (use_editor) {
                char *author_ident;
                const char *committer_ident;
@@ -558,12 +561,22 @@ static int prepare_to_commit(const char *index_file, const char *prefix)
                                           getenv("GIT_COMMITTER_EMAIL"));
                if (strcmp(author_ident, committer_ident))
                        fprintf(fp,
-                               "#\n"
-                               "# Author:    %s\n"
-                               "#\n",
+                               "%s"
+                               "# Author:    %s\n",
+                               ident_shown++ ? "" : "#\n",
                                author_ident);
                free(author_ident);
 
+               if (!user_ident_explicitly_given)
+                       fprintf(fp,
+                               "%s"
+                               "# Committer: %s\n",
+                               ident_shown++ ? "" : "#\n",
+                               committer_ident);
+
+               if (ident_shown)
+                       fprintf(fp, "#\n");
+
                saved_color_setting = wt_status_use_color;
                wt_status_use_color = 0;
                commitable = run_status(fp, index_file, prefix, 1);

diff --git a/cache.h b/cache.h
index d5d5dad..327e5ea 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -719,6 +719,7 @@ extern int config_error_nonbool(const char *);
 #define MAX_GITNAME (1000)
 extern char git_default_email[MAX_GITNAME];
 extern char git_default_name[MAX_GITNAME];
+extern int user_ident_explicitly_given;
 
 extern const char *git_commit_encoding;
 extern const char *git_log_output_encoding;

diff --git a/config.c b/config.c
index b0ada51..3bc4c7e 100644 (file)
--- a/config.c
+++ b/config.c
@@ -443,6 +443,8 @@ int git_default_config(const char *var, const char *value)
                if (!value)
                        return config_error_nonbool(var);
                strlcpy(git_default_name, value, sizeof(git_default_name));
+               if (git_default_email[0])
+                       user_ident_explicitly_given = 1;
                return 0;
        }
 
@@ -450,6 +452,8 @@ int git_default_config(const char *var, const char *value)
                if (!value)
                        return config_error_nonbool(var);
                strlcpy(git_default_email, value, sizeof(git_default_email));
+               if (git_default_name[0])
+                       user_ident_explicitly_given = 1;
                return 0;
        }
 

diff --git a/environment.c b/environment.c
index fcd1ee5..1b80036 100644 (file)
--- a/environment.c
+++ b/environment.c
@@ -11,6 +11,7 @@
 
 char git_default_email[MAX_GITNAME];
 char git_default_name[MAX_GITNAME];
+int user_ident_explicitly_given;
 int trust_executable_bit = 1;
 int quote_path_fully = 1;
 int has_symlinks = 1;

diff --git a/ident.c b/ident.c
index ed44a53..b35504a 100644 (file)
--- a/ident.c
+++ b/ident.c
@@ -250,6 +250,9 @@ const char *git_author_info(int flag)
 
 const char *git_committer_info(int flag)
 {
+       if (getenv("GIT_COMMITTER_NAME") &&
+           getenv("GIT_COMMITTER_EMAIL"))
+               user_ident_explicitly_given = 1;
        return fmt_ident(getenv("GIT_COMMITTER_NAME"),
                         getenv("GIT_COMMITTER_EMAIL"),
                         getenv("GIT_COMMITTER_DATE"),

diff --git a/t/t7502-commit.sh b/t/t7502-commit.sh
index 0b1db40..018060c 100755 (executable)
--- a/t/t7502-commit.sh
+++ b/t/t7502-commit.sh
@@ -166,6 +166,21 @@ test_expect_success 'author different from committer' '
        test_cmp expect actual
 '
 
+sed -i '$d' expect
+echo "# Committer:
+#" >> expect
+unset GIT_COMMITTER_EMAIL
+unset GIT_COMMITTER_NAME
+
+test_expect_success 'committer is automatic' '
+
+       echo >>negative &&
+       git commit -e -m "sample"
+       head -n 8 .git/COMMIT_EDITMSG | \
+       sed "s/^# Committer: .*/# Committer:/" >actual &&
+       test_cmp expect actual
+'
+
 pwd=`pwd`
 cat >> .git/FAKE_EDITOR << EOF
 #! /bin/sh