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config --global --edit: create a template file if needed

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When the user has no ~/.gitconfig file, git config --global --edit used
to launch an editor on an nonexistant file name.

Instead, create a file with a default content before launching the
editor. The template contains only commented-out entries, to save a few
keystrokes for the user. If the values are guessed properly, the user
will only have to uncomment the entries.

Advanced users teaching newbies can create a minimalistic configuration
faster for newbies. Beginners reading a tutorial advising to run "git
config --global --edit" as a first step will be slightly more guided for
their first contact with Git.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Matthieu Moy 2014-07-25 21:11:34 +02:00 committed by Junio C Hamano
parent 740c281d21
commit 9830534e40
3 changed files with 30 additions and 4 deletions
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31
builtin/config.c
View file

@ -458,6 +458,20 @@ static int get_urlmatch(const char *var, const char *url)
return 0;
}
static char *default_user_config(void)
{
struct strbuf buf = STRBUF_INIT;
strbuf_addf(&buf,
_("# This is Git's per-user configuration file.\n"
"[core]\n"
"# Please adapt and uncomment the following lines:\n"
"# user = %s\n"
"# email = %s\n"),
ident_default_name(),
ident_default_email());
return strbuf_detach(&buf, NULL);
}
int cmd_config(int argc, const char **argv, const char *prefix)
{
int nongit = !startup_info->have_repository;
@ -564,6 +578,8 @@ int cmd_config(int argc, const char **argv, const char *prefix)
}
}
else if (actions == ACTION_EDIT) {
const char *config_file = given_config_source.file ?
given_config_source.file : git_path("config");
check_argc(argc, 0, 0);
if (!given_config_source.file && nongit)
die("not in a git directory");
@ -572,9 +588,18 @@ int cmd_config(int argc, const char **argv, const char *prefix)
if (given_config_source.blob)
die("editing blobs is not supported");
git_config(git_default_config, NULL);
launch_editor(given_config_source.file ?
given_config_source.file : git_path("config"),
NULL, NULL);
if (use_global_config) {
int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666);
if (fd) {
char *content = default_user_config();
write_str_in_full(fd, content);
free(content);
close(fd);
}
else if (errno != EEXIST)
die_errno(_("cannot create configuration file %s"), config_file);
}
launch_editor(config_file, NULL, NULL);
}
else if (actions == ACTION_SET) {
int ret;

1
cache.h
View file

@ -1025,6 +1025,7 @@ 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 *ident_default_name(void);
extern const char *ident_default_email(void);
extern const char *git_editor(void);
extern const char *git_pager(int stdout_is_tty);

2
ident.c
View file

@ -102,7 +102,7 @@ static void copy_email(const struct passwd *pw, struct strbuf *email)
add_domainname(email);
}
static const char *ident_default_name(void)
const char *ident_default_name(void)
{
if (!git_default_name.len) {
copy_gecos(xgetpwuid_self(), &git_default_name);