unpack-trees: handle lstat failure for existing file

diff --git a/convert.c b/convert.c
index e41a31e4807e92e210854214d46767b9752c5181..01de9a84c21b31a0120065a32a386f27321cdf7b 100644 (file)
--- a/convert.c
+++ b/convert.c
@@ -93,7 +93,8 @@ static int is_binary(unsigned long size, struct text_stat *stats)
        return 0;
 }
 
-static enum eol determine_output_conversion(enum action action) {
+static enum eol determine_output_conversion(enum action action)
+{
        switch (action) {
        case CRLF_BINARY:
                return EOL_UNSET;
@@ -693,7 +694,8 @@ static int git_path_check_ident(const char *path, struct git_attr_check *check)
        return !!ATTR_TRUE(value);
 }
 
-enum action determine_action(enum action text_attr, enum eol eol_attr) {
+static enum action determine_action(enum action text_attr, enum eol eol_attr)
+{
        if (text_attr == CRLF_BINARY)
                return CRLF_BINARY;
        if (eol_attr == EOL_LF)
@@ -739,7 +741,9 @@ int convert_to_git(const char *path, const char *src, size_t len,
        return ret | ident_to_git(path, src, len, dst, ident);
 }
 
-int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst)
+static int convert_to_working_tree_internal(const char *path, const char *src,
+                                           size_t len, struct strbuf *dst,
+                                           int normalizing)
 {
        struct git_attr_check check[5];
        enum action action = CRLF_GUESS;
@@ -765,11 +769,32 @@ int convert_to_working_tree(const char *path, const char *src, size_t len, struc
                src = dst->buf;
                len = dst->len;
        }
-       action = determine_action(action, eol_attr);
-       ret |= crlf_to_worktree(path, src, len, dst, action);
+       /*
+        * CRLF conversion can be skipped if normalizing, unless there
+        * is a smudge filter.  The filter might expect CRLFs.
+        */
+       if (filter || !normalizing) {
+               action = determine_action(action, eol_attr);
+               ret |= crlf_to_worktree(path, src, len, dst, action);
+               if (ret) {
+                       src = dst->buf;
+                       len = dst->len;
+               }
+       }
+       return ret | apply_filter(path, src, len, dst, filter);
+}
+
+int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst)
+{
+       return convert_to_working_tree_internal(path, src, len, dst, 0);
+}
+
+int renormalize_buffer(const char *path, const char *src, size_t len, struct strbuf *dst)
+{
+       int ret = convert_to_working_tree_internal(path, src, len, dst, 1);
        if (ret) {
                src = dst->buf;
                len = dst->len;
        }
-       return ret | apply_filter(path, src, len, dst, filter);
+       return ret | convert_to_git(path, src, len, dst, 0);
 }