Merge branch 'ps/no-writable-strings' into jk/imap-send-plug-all-msgs-leak

* ps/no-writable-strings: (46 commits)
  config.mak.dev: enable `-Wwrite-strings` warning
  builtin/merge: always store allocated strings in `pull_twohead`
  builtin/rebase: always store allocated string in `options.strategy`
  builtin/rebase: do not assign default backend to non-constant field
  imap-send: fix leaking memory in `imap_server_conf`
  imap-send: drop global `imap_server_conf` variable
  mailmap: always store allocated strings in mailmap blob
  revision: always store allocated strings in output encoding
  remote-curl: avoid assigning string constant to non-const variable
  send-pack: always allocate receive status
  parse-options: cast long name for OPTION_ALIAS
  http: do not assign string constant to non-const field
  compat/win32: fix const-correctness with string constants
  pretty: add casts for decoration option pointers
  object-file: make `buf` parameter of `index_mem()` a constant
  object-file: mark cached object buffers as const
  ident: add casts for fallback name and GECOS
  entry: refactor how we remove items for delayed checkouts
  line-log: always allocate the output prefix
  line-log: stop assigning string constant to file parent buffer
  ...

1 files changed, 13 insertions, 0 deletions

diff --git a/strvec.h b/strvec.h
index 4715d3e51f..6c7e8b7d50 100644
--- a/strvec.h
+++ b/strvec.h
@@ -65,6 +65,19 @@ void strvec_pushl(struct strvec *, ...);
 void strvec_pushv(struct strvec *, const char **);
 
 /**
+ * Replace the value at the given index with a new value. The index must be
+ * valid. Returns a pointer to the inserted value.
+ */
+const char *strvec_replace(struct strvec *array, size_t idx, const char *replacement);
+
+/*
+ * Remove the value at the given index. The remainder of the array will be
+ * moved to fill the resulting gap. The provided index must point into the
+ * array.
+ */
+void strvec_remove(struct strvec *array, size_t idx);
+
+/**
  * Remove the final element from the array. If there are no
  * elements in the array, do nothing.
  */