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-rw-r--r--submodule.c51
-rw-r--r--submodule.h2
2 files changed, 53 insertions, 0 deletions
diff --git a/submodule.c b/submodule.c
index 392e83e0bf..fb5134a43b 100644
--- a/submodule.c
+++ b/submodule.c
@@ -10,6 +10,7 @@
#include "string-list.h"
#include "sha1-array.h"
#include "argv-array.h"
+#include "blob.h"
static struct string_list config_name_for_path;
static struct string_list config_fetch_recurse_submodules_for_name;
@@ -30,6 +31,51 @@ static struct sha1_array ref_tips_after_fetch;
*/
static int gitmodules_is_unmerged;
+/*
+ * This flag is set if the .gitmodules file had unstaged modifications on
+ * startup. This must be checked before allowing modifications to the
+ * .gitmodules file with the intention to stage them later, because when
+ * continuing we would stage the modifications the user didn't stage herself
+ * too. That might change in a future version when we learn to stage the
+ * changes we do ourselves without staging any previous modifications.
+ */
+static int gitmodules_is_modified;
+
+
+int is_staging_gitmodules_ok(void)
+{
+ return !gitmodules_is_modified;
+}
+
+void stage_updated_gitmodules(void)
+{
+ struct strbuf buf = STRBUF_INIT;
+ struct stat st;
+ int pos;
+ struct cache_entry *ce;
+ int namelen = strlen(".gitmodules");
+
+ pos = cache_name_pos(".gitmodules", namelen);
+ if (pos < 0) {
+ warning(_("could not find .gitmodules in index"));
+ return;
+ }
+ ce = active_cache[pos];
+ ce->ce_flags = namelen;
+ if (strbuf_read_file(&buf, ".gitmodules", 0) < 0)
+ die(_("reading updated .gitmodules failed"));
+ if (lstat(".gitmodules", &st) < 0)
+ die_errno(_("unable to stat updated .gitmodules"));
+ fill_stat_cache_info(ce, &st);
+ ce->ce_mode = ce_mode_from_stat(ce, st.st_mode);
+ if (remove_cache_entry_at(pos) < 0)
+ die(_("unable to remove .gitmodules from index"));
+ if (write_sha1_file(buf.buf, buf.len, blob_type, ce->sha1))
+ die(_("adding updated .gitmodules failed"));
+ if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE))
+ die(_("staging updated .gitmodules failed"));
+}
+
static int add_submodule_odb(const char *path)
{
struct strbuf objects_directory = STRBUF_INIT;
@@ -116,6 +162,11 @@ void gitmodules_config(void)
!memcmp(ce->name, ".gitmodules", 11))
gitmodules_is_unmerged = 1;
}
+ } else if (pos < active_nr) {
+ struct stat st;
+ if (lstat(".gitmodules", &st) == 0 &&
+ ce_match_stat(active_cache[pos], &st, 0) & DATA_CHANGED)
+ gitmodules_is_modified = 1;
}
if (!gitmodules_is_unmerged)
diff --git a/submodule.h b/submodule.h
index 29e9658980..5501354568 100644
--- a/submodule.h
+++ b/submodule.h
@@ -11,6 +11,8 @@ enum {
RECURSE_SUBMODULES_ON = 2
};
+int is_staging_gitmodules_ok(void);
+void stage_updated_gitmodules(void);
void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt,
const char *path);
int submodule_config(const char *var, const char *value, void *cb);