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submodule--helper: move config-sanitizing to submodule.c

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These functions should be used by any code which spawns a
submodule process, which may happen in submodule.c (e.g.,
for spawning fetch). Let's move them there and make them
public so that submodule--helper can continue to use them.

Since they're now public, let's also provide a basic overview
of their intended use.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2016-04-28 09:38:20 -04:00 committed by Junio C Hamano
parent 860cba61a3
commit 4638728c63
3 changed files with 64 additions and 48 deletions
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48
builtin/submodule--helper.c
View File

@ -125,54 +125,6 @@ static int module_name(int argc, const char **argv, const char *prefix)
return 0;
}
/*
* Rules to sanitize configuration variables that are Ok to be passed into
* submodule operations from the parent project using "-c". Should only
* include keys which are both (a) safe and (b) necessary for proper
* operation.
*/
static int submodule_config_ok(const char *var)
{
if (starts_with(var, "credential."))
return 1;
return 0;
}
static int sanitize_submodule_config(const char *var, const char *value, void *data)
{
struct strbuf *out = data;
if (submodule_config_ok(var)) {
if (out->len)
strbuf_addch(out, ' ');
if (value)
sq_quotef(out, "%s=%s", var, value);
else
sq_quote_buf(out, var);
}
return 0;
}
static void prepare_submodule_repo_env(struct argv_array *out)
{
const char * const *var;
for (var = local_repo_env; *var; var++) {
if (!strcmp(*var, CONFIG_DATA_ENVIRONMENT)) {
struct strbuf sanitized_config = STRBUF_INIT;
git_config_from_parameters(sanitize_submodule_config,
&sanitized_config);
argv_array_pushf(out, "%s=%s", *var, sanitized_config.buf);
strbuf_release(&sanitized_config);
} else {
argv_array_push(out, *var);
}
}
}
static int clone_submodule(const char *path, const char *gitdir, const char *url,
const char *depth, const char *reference, int quiet)
{

48
submodule.c
View File

@ -13,6 +13,7 @@
#include "argv-array.h"
#include "blob.h"
#include "thread-utils.h"
#include "quote.h"
static int config_fetch_recurse_submodules = RECURSE_SUBMODULES_ON_DEMAND;
static struct string_list changed_submodule_paths;
@ -1097,3 +1098,50 @@ void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir)
strbuf_release(&rel_path);
free((void *)real_work_tree);
}
/*
* Rules to sanitize configuration variables that are Ok to be passed into
* submodule operations from the parent project using "-c". Should only
* include keys which are both (a) safe and (b) necessary for proper
* operation.
*/
static int submodule_config_ok(const char *var)
{
if (starts_with(var, "credential."))
return 1;
return 0;
}
int sanitize_submodule_config(const char *var, const char *value, void *data)
{
struct strbuf *out = data;
if (submodule_config_ok(var)) {
if (out->len)
strbuf_addch(out, ' ');
if (value)
sq_quotef(out, "%s=%s", var, value);
else
sq_quote_buf(out, var);
}
return 0;
}
void prepare_submodule_repo_env(struct argv_array *out)
{
const char * const *var;
for (var = local_repo_env; *var; var++) {
if (!strcmp(*var, CONFIG_DATA_ENVIRONMENT)) {
struct strbuf sanitized_config = STRBUF_INIT;
git_config_from_parameters(sanitize_submodule_config,
&sanitized_config);
argv_array_pushf(out, "%s=%s", *var, sanitized_config.buf);
strbuf_release(&sanitized_config);
} else {
argv_array_push(out, *var);
}
}
}

16
submodule.h
View File

@ -43,4 +43,20 @@ int find_unpushed_submodules(unsigned char new_sha1[20], const char *remotes_nam
int push_unpushed_submodules(unsigned char new_sha1[20], const char *remotes_name);
void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir);
/*
* This function is intended as a callback for use with
* git_config_from_parameters(). It ignores any config options which
* are not suitable for passing along to a submodule, and accumulates the rest
* in "data", which must be a pointer to a strbuf. The end result can
* be put into $GIT_CONFIG_PARAMETERS for passing to a sub-process.
*/
int sanitize_submodule_config(const char *var, const char *value, void *data);
/*
* Prepare the "env_array" parameter of a "struct child_process" for executing
* a submodule by clearing any repo-specific envirionment variables, but
* retaining any config approved by sanitize_submodule_config().
*/
void prepare_submodule_repo_env(struct argv_array *out);
#endif