Merge branch 'ar/config-from-command-line'

* ar/config-from-command-line:
  Complete prototype of git_config_from_parameters()
  Use strbufs instead of open-coded string manipulation
  Allow passing of configuration parameters in the command line

diff --git a/Documentation/git.txt b/Documentation/git.txt
index c4024d0edd9f77c49e6211c6950c6ccb775a70ff..1a6ba878232f735b9cdac84aff897ef872381bdf 100644 (file)
--- a/Documentation/git.txt
+++ b/Documentation/git.txt
@@ -12,6 +12,7 @@ SYNOPSIS
 'git' [--version] [--exec-path[=GIT_EXEC_PATH]] [--html-path]
     [-p|--paginate|--no-pager] [--no-replace-objects]
     [--bare] [--git-dir=GIT_DIR] [--work-tree=GIT_WORK_TREE]
+    [-c name=value]
     [--help] COMMAND [ARGS]
 
 DESCRIPTION
@@ -228,6 +229,12 @@ displayed. See linkgit:git-help[1] for more information,
 because `git --help ...` is converted internally into `git
 help ...`.
 
+-c <name>=<value>::
+       Pass a configuration parameter to the command. The value
+       given will override values from configuration files.
+       The <name> is expected in the same format as listed by
+       'git config' (subkeys separated by dots).
+
 --exec-path::
        Path to wherever your core git programs are installed.
        This can also be controlled by setting the GIT_EXEC_PATH

diff --git a/builtin/config.c b/builtin/config.c
index 4bc46b15fde00d913577a2980778746f8315bb70..f3d1660d023f7893373436617a9f729ce1d60f4d 100644 (file)
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -197,7 +197,11 @@ static int get_value(const char *key_, const char *regex_)
                git_config_from_file(show_config, system_wide, NULL);
        if (do_all && global)
                git_config_from_file(show_config, global, NULL);
-       git_config_from_file(show_config, local, NULL);
+       if (do_all)
+               git_config_from_file(show_config, local, NULL);
+       git_config_from_parameters(show_config, NULL);
+       if (!do_all && !seen)
+               git_config_from_file(show_config, local, NULL);
        if (!do_all && !seen && global)
                git_config_from_file(show_config, global, NULL);
        if (!do_all && !seen && system_wide)

diff --git a/cache.h b/cache.h
index 0f4263c09af77ef7deabdddadbb96c447be409a0..8270390c885ab16de68ff700e2a1eb69cee5e7cb 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -938,6 +938,8 @@ extern int update_server_info(int);
 typedef int (*config_fn_t)(const char *, const char *, void *);
 extern int git_default_config(const char *, const char *, void *);
 extern int git_config_from_file(config_fn_t fn, const char *, void *);
+extern int git_config_parse_parameter(const char *text);
+extern int git_config_from_parameters(config_fn_t fn, void *data);
 extern int git_config(config_fn_t fn, void *);
 extern int git_parse_ulong(const char *, unsigned long *);
 extern int git_config_int(const char *, const char *);

diff --git a/config.c b/config.c
index 64e41bea22466a81df5eda274bc97e3860d6cde6..aab53298a1a02577015a2c3481667a9b53bba1b1 100644 (file)
--- a/config.c
+++ b/config.c
@@ -7,6 +7,7 @@
  */
 #include "cache.h"
 #include "exec_cmd.h"
+#include "strbuf.h"
 
 #define MAXNAME (256)
 
@@ -18,6 +19,48 @@ static int zlib_compression_seen;
 
 const char *config_exclusive_filename = NULL;
 
+struct config_item
+{
+       struct config_item *next;
+       char *name;
+       char *value;
+};
+static struct config_item *config_parameters;
+static struct config_item **config_parameters_tail = &config_parameters;
+
+static void lowercase(char *p)
+{
+       for (; *p; p++)
+               *p = tolower(*p);
+}
+
+int git_config_parse_parameter(const char *text)
+{
+       struct config_item *ct;
+       struct strbuf tmp = STRBUF_INIT;
+       struct strbuf **pair;
+       strbuf_addstr(&tmp, text);
+       pair = strbuf_split(&tmp, '=');
+       if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=')
+               strbuf_setlen(pair[0], pair[0]->len - 1);
+       strbuf_trim(pair[0]);
+       if (!pair[0]->len) {
+               strbuf_list_free(pair);
+               return -1;
+       }
+       ct = xcalloc(1, sizeof(struct config_item));
+       ct->name = strbuf_detach(pair[0], NULL);
+       if (pair[1]) {
+               strbuf_trim(pair[1]);
+               ct->value = strbuf_detach(pair[1], NULL);
+       }
+       strbuf_list_free(pair);
+       lowercase(ct->name);
+       *config_parameters_tail = ct;
+       config_parameters_tail = &ct->next;
+       return 0;
+}
+
 static int get_next_char(void)
 {
        int c;
@@ -712,6 +755,15 @@ int git_config_global(void)
        return !git_env_bool("GIT_CONFIG_NOGLOBAL", 0);
 }
 
+int git_config_from_parameters(config_fn_t fn, void *data)
+{
+       const struct config_item *ct;
+       for (ct = config_parameters; ct; ct = ct->next)
+               if (fn(ct->name, ct->value, data) < 0)
+                       return -1;
+       return 0;
+}
+
 int git_config(config_fn_t fn, void *data)
 {
        int ret = 0, found = 0;
@@ -743,6 +795,12 @@ int git_config(config_fn_t fn, void *data)
                found += 1;
        }
        free(repo_config);
+
+       if (config_parameters) {
+               ret += git_config_from_parameters(fn, data);
+               found += 1;
+       }
+
        if (found == 0)
                return -1;
        return ret;

diff --git a/git.c b/git.c
index 6bae30545b85f19eb51c4b055f303f70909f0cf2..99f036302a7e6d884369d1d3f4ce428e437cbccd 100644 (file)
--- a/git.c
+++ b/git.c
@@ -8,6 +8,7 @@ const char git_usage_string[] =
        "git [--version] [--exec-path[=GIT_EXEC_PATH]] [--html-path]\n"
        "           [-p|--paginate|--no-pager] [--no-replace-objects]\n"
        "           [--bare] [--git-dir=GIT_DIR] [--work-tree=GIT_WORK_TREE]\n"
+       "           [-c name=value\n"
        "           [--help] COMMAND [ARGS]";
 
 const char git_more_info_string[] =
@@ -130,6 +131,14 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
                        setenv(GIT_DIR_ENVIRONMENT, getcwd(git_dir, sizeof(git_dir)), 0);
                        if (envchanged)
                                *envchanged = 1;
+               } else if (!strcmp(cmd, "-c")) {
+                       if (*argc < 2) {
+                               fprintf(stderr, "-c expects a configuration string\n" );
+                               usage(git_usage_string);
+                       }
+                       git_config_parse_parameter((*argv)[1]);
+                       (*argv)++;
+                       (*argc)--;
                } else {
                        fprintf(stderr, "Unknown option: %s\n", cmd);
                        usage(git_usage_string);

diff --git a/t/t1300-repo-config.sh b/t/t1300-repo-config.sh
index f11f98c3ce7e35f61d06542ce707d61b98079fda..64f05080b65c2b9506d1e34748b47ee721026aef 100755 (executable)
--- a/t/t1300-repo-config.sh
+++ b/t/t1300-repo-config.sh
@@ -824,4 +824,12 @@ test_expect_success 'check split_cmdline return' "
        test_must_fail git merge master
        "
 
+test_expect_success 'git -c "key=value" support' '
+       test "z$(git -c name=value config name)" = zvalue &&
+       test "z$(git -c core.name=value config core.name)" = zvalue &&
+       test "z$(git -c CamelCase=value config camelcase)" = zvalue &&
+       test "z$(git -c flag config --bool flag)" = ztrue &&
+       test_must_fail git -c core.name=value config name
+'
+
 test_done