merge(3p/git): Merge git upstream at v2.26.2

third_party/git/strbuf.h

@@ -244,6 +244,18 @@ void strbuf_addchars(struct strbuf *sb, int c, size_t n);
  */
 void strbuf_insert(struct strbuf *sb, size_t pos, const void *, size_t);
 
+/**
+ * Insert a NUL-terminated string to the given position of the buffer.
+ * The remaining contents will be shifted, not overwritten.  It's an
+ * inline function to allow the compiler to resolve strlen() calls on
+ * constants at compile time.
+ */
+static inline void strbuf_insertstr(struct strbuf *sb, size_t pos,
+				    const char *s)
+{
+	strbuf_insert(sb, pos, s, strlen(s));
+}
+
 /**
  * Insert data to the given position of the buffer giving a printf format
  * string. The contents will be shifted, not overwritten.
@@ -366,6 +378,12 @@ size_t strbuf_expand_dict_cb(struct strbuf *sb,
  */
 void strbuf_addbuf_percentquote(struct strbuf *dst, const struct strbuf *src);
 
+/**
+ * Append the contents of a string to a strbuf, percent-encoding any characters
+ * that are needed to be encoded for a URL.
+ */
+void strbuf_add_percentencode(struct strbuf *dst, const char *src);
+
 /**
  * Append the given byte size as a human-readable string (i.e. 12.23 KiB,
  * 3.50 MiB).
@@ -621,6 +639,17 @@ int launch_editor(const char *path, struct strbuf *buffer,
 int launch_sequence_editor(const char *path, struct strbuf *buffer,
 			   const char *const *env);
 
+/*
+ * In contrast to `launch_editor()`, this function writes out the contents
+ * of the specified file first, then clears the `buffer`, then launches
+ * the editor and reads back in the file contents into the `buffer`.
+ * Finally, it deletes the temporary file.
+ *
+ * If `path` is relative, it refers to a file in the `.git` directory.
+ */
+int strbuf_edit_interactively(struct strbuf *buffer, const char *path,
+			      const char *const *env);
+
 void strbuf_add_lines(struct strbuf *sb,
 		      const char *prefix,
 		      const char *buf,
@@ -672,8 +701,13 @@ void strbuf_branchname(struct strbuf *sb, const char *name,
  */
 int strbuf_check_branch_ref(struct strbuf *sb, const char *name);
 
+typedef int (*char_predicate)(char ch);
+
+int is_rfc3986_unreserved(char ch);
+int is_rfc3986_reserved_or_unreserved(char ch);
+
 void strbuf_addstr_urlencode(struct strbuf *sb, const char *name,
-			     int reserved);
+			     char_predicate allow_unencoded_fn);
 
 __attribute__((format (printf,1,2)))
 int printf_ln(const char *fmt, ...);