config: display key_delim for config --bool --get-regexp

The previous logic in show_config was to print the delimiter when the
value was set, but Boolean variables have an implicit value "true" when
they appear with no value in the config file. As a result, we got:

git_Config        --get-regexp '.*\.Boolean'	#1. Ok: example.boolean
git_Config --bool --get-regexp '.*\.Boolean'	#2. NO: example.booleantrue

Fix this by defering the display of the separator until after the value
to display has been computed.

Reported-by: Brian Foster <brian.foster@maxim-ic.com>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/config.c b/builtin/config.c
index ca4a0db4a79241d7ded005483b4693967eea636f..3f5e9d26ab1fcfbce39d01938575a0b7e36e7b9a 100644 (file)
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -99,6 +99,7 @@ static int show_config(const char *key_, const char *value_, void *cb)
        const char *vptr = value;
        int must_free_vptr = 0;
        int dup_error = 0;
+       int must_print_delim = 0;
 
        if (!use_key_regexp && strcmp(key_, key))
                return 0;
@@ -109,10 +110,8 @@ static int show_config(const char *key_, const char *value_, void *cb)
                return 0;
 
        if (show_keys) {
-               if (value_)
-                       printf("%s%c", key_, key_delim);
-               else
-                       printf("%s", key_);
+               printf("%s", key_);
+               must_print_delim = 1;
        }
        if (seen && !do_all)
                dup_error = 1;
@@ -130,16 +129,23 @@ static int show_config(const char *key_, const char *value_, void *cb)
        } else if (types == TYPE_PATH) {
                git_config_pathname(&vptr, key_, value_);
                must_free_vptr = 1;
+       } else if (value_) {
+               vptr = value_;
+       } else {
+               /* Just show the key name */
+               vptr = "";
+               must_print_delim = 0;
        }
-       else
-               vptr = value_?value_:"";
        seen++;
        if (dup_error) {
                error("More than one value for the key %s: %s",
                                key_, vptr);
        }
-       else
+       else {
+               if (must_print_delim)
+                       printf("%c", key_delim);
                printf("%s%c", vptr, term);
+       }
        if (must_free_vptr)
                /* If vptr must be freed, it's a pointer to a
                 * dynamically allocated buffer, it's safe to cast to

diff --git a/t/t1300-repo-config.sh b/t/t1300-repo-config.sh
index d0e55465ff08698376f5d9fa86357d51bd57458c..cce601f0a63ae64ae795a815031623a776d89931 100755 (executable)
--- a/t/t1300-repo-config.sh
+++ b/t/t1300-repo-config.sh
@@ -333,6 +333,12 @@ test_expect_success 'get-regexp variable with no value' \
        'git config --get-regexp novalue > output &&
         cmp output expect'
 
+echo 'novalue.variable true' > expect
+
+test_expect_success 'get-regexp --bool variable with no value' \
+       'git config --bool --get-regexp novalue > output &&
+        cmp output expect'
+
 echo 'emptyvalue.variable ' > expect
 
 test_expect_success 'get-regexp variable with empty value' \