This is a patch for my work on one of the micro projects, as I intend
to apply for the Google Summer of Code 2015 under the Git community.
This patch gives the user the oppotunity to specify configuration
options for some commonly used command-line options for exampel:
git config defopt.am 'am -3'
---
Makefile | 1 +
defopt.c | 24 ++++++++++++++++++++++++
git.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 81 insertions(+)
create mode 100644 defopt.c
diff --git a/Makefile b/Makefile
index 2320de5..e713e23 100644
--- a/Makefile
+++ b/Makefile
@@ -789,6 +789,7 @@ LIB_OBJS += csum-file.o
LIB_OBJS += ctype.o
LIB_OBJS += date.o
LIB_OBJS += decorate.o
+LIB_OBJS += defopt.o
LIB_OBJS += diffcore-break.o
LIB_OBJS += diffcore-delta.o
LIB_OBJS += diffcore-order.o
diff --git a/defopt.c b/defopt.c
new file mode 100644
index 0000000..b4fa9e2
--- /dev/null
+++ b/defopt.c
@@ -0,0 +1,24 @@
+#include "cache.h"
+
+static const char *defopt_key;
+static char *defopt_val;
+
+static int defopt_lookup_cb(const char *k, const char *v, void *cb)
+{
+ const char *name;
+ if (skip_prefix(k, "defopt.", &name) && !strcmp(name, defopt_key)) {
+ if (!v)
+ return config_error_nonbool(k);
+ defopt_val = xstrdup(v);
+ return 0;
+ }
+ return 0;
+}
+
+char *defopt_lookup(const char *defopt)
+{
+ defopt_key = defopt;
+ defopt_val = NULL;
+ git_config(defopt_lookup_cb, NULL);
+ return defopt_val;
+}
diff --git a/git.c b/git.c
index 9c49519..4b556e1 100644
--- a/git.c
+++ b/git.c
@@ -223,6 +223,59 @@ static int handle_options(const char ***argv, int
*argc, int *envchanged)
return (*argv) - orig_argv;
}
+static int handle_defopt(int *argcp, const char ***argv)
+{
+ int envchanged = 0, ret = 0, saved_errno = errno;
+ const char *subdir;
+ int count, option_count;
+ const char **new_argv;
+ const char *defopt_command;
+ char *defopt_string;
+ int unused_nongit;
+
+ subdir = setup_git_directory_gently(&unused_nongit);
+
+ defopt_command = (*argv)[0];
+ defopt_string = defopt_lookup(defopt_command);
+ if (defopt_string) {
+
+ count = split_cmdline(defopt_string, &new_argv);
+ if (count < 0)
+ return;
+ option_count = handle_options(&new_argv, &count, &envchanged);
+
+ memmove(new_argv - option_count, new_argv,
+ count * sizeof(char *));
+ new_argv -= option_count;
+
+ if (count < 1)
+ return;
+
+ if (strcmp(defopt_command, new_argv[0]))
+ return;
+
+ trace_argv_printf(new_argv,
+ "trace: defopt: %s =>",
+ defopt_command);
+
+ new_argv = xrealloc(new_argv, sizeof(char *) *
+ (count + *argcp));
+ /* insert after command name */
+ memcpy(new_argv + count, *argv + 1, sizeof(char *) * *argcp);
+
+ *argv = new_argv;
+ *argcp += count - 1;
+
+ }
+
+ if (subdir && chdir(subdir))
+ die_errno("Cannot change to '%s'", subdir);
+
+ errno = saved_errno;
+
+}
+
+
static int handle_alias(int *argcp, const char ***argv)
{
int envchanged = 0, ret = 0, saved_errno = errno;
@@ -517,6 +570,9 @@ static void handle_builtin(int argc, const char **argv)
argv[1] = argv[0];
argv[0] = cmd = "help";
}
+
+ if(is_builtin(cmd) && argc == 1)
+ handle_defopt(&argc, &argv);
for (i = 0; i < ARRAY_SIZE(commands); i++) {
struct cmd_struct *p = commands+i;
--
Signed-off-by: Yolande Amate <[email protected]>
1.7.10.4
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