[PATCH v6 0/7] strbuf cleanups

Reroll with last couple of nits fixed. Thanks again to everyone for reviewing this series!

Calvin Wan (7):
  strbuf: clarify API boundary
  abspath: move related functions to abspath
  credential-store: move related functions to credential-store file
  object-name: move related functions to object-name
  path: move related function to path
  strbuf: clarify dependency
  strbuf: remove global variable

 abspath.c                  |  36 ++++++++++++
 abspath.h                  |  21 +++++++
 add-patch.c                |  12 ++--
 builtin/am.c               |   2 +-
 builtin/branch.c           |   4 +-
 builtin/commit.c           |   2 +-
 builtin/credential-store.c |  19 +++++++
 builtin/merge.c            |  10 ++--
 builtin/notes.c            |  16 +++---
 builtin/rebase.c           |   2 +-
 builtin/stripspace.c       |   6 +-
 builtin/tag.c              |   9 ++-
 fmt-merge-msg.c            |   9 ++-
 gpg-interface.c            |   5 +-
 hook.c                     |   1 +
 object-name.c              |  15 +++++
 object-name.h              |   9 +++
 path.c                     |  20 +++++++
 path.h                     |   5 ++
 pretty.c                   |   1 +
 rebase-interactive.c       |  15 ++---
 sequencer.c                |  24 +++++---
 strbuf.c                   | 112 ++++---------------------------------
 strbuf.h                   |  57 ++++++-------------
 tempfile.c                 |   1 +
 wt-status.c                |   6 +-
 26 files changed, 227 insertions(+), 192 deletions(-)

Range-diff against v5:
1:  287e787c9c ! 1:  5ae531a1e2 strbuf: clarify API boundary
    @@ strbuf.h
     +/*
     + * NOTE FOR STRBUF DEVELOPERS
     + *
    -+ * The objects that this API interacts with should be limited to other
    -+ * primitives, however, there are older functions in here that interact
    -+ * with non-primitive objects which should eventually be moved out or
    -+ * refactored.
    ++ * strbuf is a low-level primitive; as such it should interact only
    ++ * with other low-level primitives. Do not introduce new functions
    ++ * which interact with higher-level APIs.
     + */
     +
      struct string_list;
2:  5bd27cad7a = 2:  3bb2b9c01a abspath: move related functions to abspath
3:  08e3e40de6 = 3:  ff91ca2fda credential-store: move related functions to credential-store file
4:  1a21d4fdd1 = 4:  10e61eb570 object-name: move related functions to object-name
5:  03b20f3384 = 5:  c3d5db4e11 path: move related function to path
6:  b55f4a39e1 = 6:  113d156195 strbuf: clarify dependency
7:  6ea36d7730 ! 7:  01c923160d strbuf: remove global variable
    @@ Commit message
         functions. Therefore, add an additional parameter for functions that use
         comment_line_char and refactor callers to pass it in instead.
         strbuf_stripspace() removes the skip_comments boolean and checks if
    -    comment_line_char is a non-NULL character to determine whether to skip
    +    comment_line_char is a non-NUL character to determine whether to skip
         comments or not.
     
      ## add-patch.c ##
    @@ strbuf.c: static size_t cleanup(char *line, size_t len)
       *
     - * Enable skip_comments to skip every line starting with comment
     - * character.
    -+ * Pass a non-NULL comment_line_char to skip every line starting
    -+ * with it
    ++ * Pass a non-NUL comment_line_char to skip every line starting
    ++ * with it.
       */
     -void strbuf_stripspace(struct strbuf *sb, int skip_comments)
     +void strbuf_stripspace(struct strbuf *sb, char comment_line_char)
    @@ strbuf.c: void strbuf_stripspace(struct strbuf *sb, int skip_comments)
      		len = eol ? eol - (sb->buf + i) + 1 : sb->len - i;
      
     -		if (skip_comments && len && sb->buf[i] == comment_line_char) {
    -+		if (comment_line_char != '\0' && len &&
    ++		if (comment_line_char && len &&
     +		    sb->buf[i] == comment_line_char) {
      			newlen = 0;
      			continue;
    @@ strbuf.h: int strbuf_getcwd(struct strbuf *sb);
      /**
     - * Strip whitespace from a buffer. The second parameter controls if
     - * comments are considered contents to be removed or not.
    -+ * Strip whitespace from a buffer. The second parameter is the comment
    -+ * character that determines whether a line is a comment or not. If the
    -+ * second parameter is a non-NULL character, comments are considered
    -+ * contents to be removed.
    ++ * Strip whitespace from a buffer. If comment_line_char is non-NUL,
    ++ * then lines beginning with that character are considered comments,
    ++ * thus removed.
       */
     -void strbuf_stripspace(struct strbuf *buf, int skip_comments);
     +void strbuf_stripspace(struct strbuf *buf, char comment_line_char);