Revision c62bc49139f1d18e922fc98e35bb08b1aadbcafc authored by Junio C Hamano on 02 August 2019, 20:12:02 UTC, committed by Junio C Hamano on 02 August 2019, 20:12:02 UTC
Support building Git with Visual Studio The bits about .git/branches/* have been dropped from the series. We may want to drop the support for it, but until that happens, the tests should rely on the existence of the support to pass. * js/visual-studio: (23 commits) git: avoid calling aliased builtins via their dashed form bin-wrappers: append `.exe` to target paths if necessary .gitignore: ignore Visual Studio's temporary/generated files .gitignore: touch up the entries regarding Visual Studio vcxproj: also link-or-copy builtins msvc: add a Makefile target to pre-generate the Visual Studio solution contrib/buildsystems: add a backend for modern Visual Studio versions contrib/buildsystems: handle options starting with a slash contrib/buildsystems: also handle -lexpat contrib/buildsystems: handle libiconv, too contrib/buildsystems: handle the curl library option contrib/buildsystems: error out on unknown option contrib/buildsystems: optionally capture the dry-run in a file contrib/buildsystems: redirect errors of the dry run into a log file contrib/buildsystems: ignore gettext stuff contrib/buildsystems: handle quoted spaces in filenames contrib/buildsystems: fix misleading error message contrib/buildsystems: ignore irrelevant files in Generators/ contrib/buildsystems: ignore invalidcontinue.obj Vcproj.pm: urlencode '<' and '>' when generating VC projects ...
credential-store.c
#include "cache.h"
#include "lockfile.h"
#include "credential.h"
#include "string-list.h"
#include "parse-options.h"
static struct lock_file credential_lock;
static int parse_credential_file(const char *fn,
struct credential *c,
void (*match_cb)(struct credential *),
void (*other_cb)(struct strbuf *))
{
FILE *fh;
struct strbuf line = STRBUF_INIT;
struct credential entry = CREDENTIAL_INIT;
int found_credential = 0;
fh = fopen(fn, "r");
if (!fh) {
if (errno != ENOENT && errno != EACCES)
die_errno("unable to open %s", fn);
return found_credential;
}
while (strbuf_getline_lf(&line, fh) != EOF) {
credential_from_url(&entry, line.buf);
if (entry.username && entry.password &&
credential_match(c, &entry)) {
found_credential = 1;
if (match_cb) {
match_cb(&entry);
break;
}
}
else if (other_cb)
other_cb(&line);
}
credential_clear(&entry);
strbuf_release(&line);
fclose(fh);
return found_credential;
}
static void print_entry(struct credential *c)
{
printf("username=%s\n", c->username);
printf("password=%s\n", c->password);
}
static void print_line(struct strbuf *buf)
{
strbuf_addch(buf, '\n');
write_or_die(get_lock_file_fd(&credential_lock), buf->buf, buf->len);
}
static void rewrite_credential_file(const char *fn, struct credential *c,
struct strbuf *extra)
{
if (hold_lock_file_for_update(&credential_lock, fn, 0) < 0)
die_errno("unable to get credential storage lock");
if (extra)
print_line(extra);
parse_credential_file(fn, c, NULL, print_line);
if (commit_lock_file(&credential_lock) < 0)
die_errno("unable to write credential store");
}
static void store_credential_file(const char *fn, struct credential *c)
{
struct strbuf buf = STRBUF_INIT;
strbuf_addf(&buf, "%s://", c->protocol);
strbuf_addstr_urlencode(&buf, c->username, 1);
strbuf_addch(&buf, ':');
strbuf_addstr_urlencode(&buf, c->password, 1);
strbuf_addch(&buf, '@');
if (c->host)
strbuf_addstr_urlencode(&buf, c->host, 1);
if (c->path) {
strbuf_addch(&buf, '/');
strbuf_addstr_urlencode(&buf, c->path, 0);
}
rewrite_credential_file(fn, c, &buf);
strbuf_release(&buf);
}
static void store_credential(const struct string_list *fns, struct credential *c)
{
struct string_list_item *fn;
/*
* Sanity check that what we are storing is actually sensible.
* In particular, we can't make a URL without a protocol field.
* Without either a host or pathname (depending on the scheme),
* we have no primary key. And without a username and password,
* we are not actually storing a credential.
*/
if (!c->protocol || !(c->host || c->path) || !c->username || !c->password)
return;
for_each_string_list_item(fn, fns)
if (!access(fn->string, F_OK)) {
store_credential_file(fn->string, c);
return;
}
/*
* Write credential to the filename specified by fns->items[0], thus
* creating it
*/
if (fns->nr)
store_credential_file(fns->items[0].string, c);
}
static void remove_credential(const struct string_list *fns, struct credential *c)
{
struct string_list_item *fn;
/*
* Sanity check that we actually have something to match
* against. The input we get is a restrictive pattern,
* so technically a blank credential means "erase everything".
* But it is too easy to accidentally send this, since it is equivalent
* to empty input. So explicitly disallow it, and require that the
* pattern have some actual content to match.
*/
if (!c->protocol && !c->host && !c->path && !c->username)
return;
for_each_string_list_item(fn, fns)
if (!access(fn->string, F_OK))
rewrite_credential_file(fn->string, c, NULL);
}
static void lookup_credential(const struct string_list *fns, struct credential *c)
{
struct string_list_item *fn;
for_each_string_list_item(fn, fns)
if (parse_credential_file(fn->string, c, print_entry, NULL))
return; /* Found credential */
}
int cmd_main(int argc, const char **argv)
{
const char * const usage[] = {
"git credential-store [<options>] <action>",
NULL
};
const char *op;
struct credential c = CREDENTIAL_INIT;
struct string_list fns = STRING_LIST_INIT_DUP;
char *file = NULL;
struct option options[] = {
OPT_STRING(0, "file", &file, "path",
"fetch and store credentials in <path>"),
OPT_END()
};
umask(077);
argc = parse_options(argc, (const char **)argv, NULL, options, usage, 0);
if (argc != 1)
usage_with_options(usage, options);
op = argv[0];
if (file) {
string_list_append(&fns, file);
} else {
if ((file = expand_user_path("~/.git-credentials", 0)))
string_list_append_nodup(&fns, file);
file = xdg_config_home("credentials");
if (file)
string_list_append_nodup(&fns, file);
}
if (!fns.nr)
die("unable to set up default path; use --file");
if (credential_read(&c, stdin) < 0)
die("unable to read credential");
if (!strcmp(op, "get"))
lookup_credential(&fns, &c);
else if (!strcmp(op, "erase"))
remove_credential(&fns, &c);
else if (!strcmp(op, "store"))
store_credential(&fns, &c);
else
; /* Ignore unknown operation. */
string_list_clear(&fns, 0);
return 0;
}
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