vim-patch:7.4.1492

Problem:    No command line completion for ":packadd".
Solution:   Implement completion. (Hirohito Higashi)

https://github.com/vim/vim/commit/35ca0e7a1cb6e6daef8e0052a8437801226cef19

4 files changed, 50 insertions, 2 deletions

diff --git a/src/nvim/ex_docmd.c b/src/nvim/ex_docmd.c
index ad17d4dcbd..80dad3605a 100644
--- a/src/nvim/ex_docmd.c
+++ b/src/nvim/ex_docmd.c
@@ -3316,6 +3316,11 @@ set_one_cmd_context (
     xp->xp_pattern = arg;
     break;
 
+  case CMD_packadd:
+    xp->xp_context = EXPAND_PACKADD;
+    xp->xp_pattern = arg;
+    break;
+
 #ifdef HAVE_WORKING_LIBINTL
   case CMD_language:
     p = skiptowhite(arg);
@@ -4688,6 +4693,7 @@ static struct {
   {EXPAND_OWNSYNTAX, "syntax"},
   {EXPAND_SYNTIME, "syntime"},
   {EXPAND_SETTINGS, "option"},
+  {EXPAND_PACKADD, "packadd"},
   {EXPAND_SHELLCMD, "shellcmd"},
   {EXPAND_SIGN, "sign"},
   {EXPAND_TAGS, "tag"},
diff --git a/src/nvim/ex_getln.c b/src/nvim/ex_getln.c
index 65144dace8..688be3c67c 100644
--- a/src/nvim/ex_getln.c
+++ b/src/nvim/ex_getln.c
@@ -3440,6 +3440,7 @@ addstar (
         || context == EXPAND_COMPILER
         || context == EXPAND_OWNSYNTAX
         || context == EXPAND_FILETYPE
+        || context == EXPAND_PACKADD
         || (context == EXPAND_TAGS && fname[0] == '/'))
       retval = vim_strnsave(fname, len);
     else {
@@ -3809,8 +3810,12 @@ ExpandFromContext (
     char *directories[] = {"syntax", "indent", "ftplugin", NULL};
     return ExpandRTDir(pat, num_file, file, directories);
   }
-  if (xp->xp_context == EXPAND_USER_LIST)
+  if (xp->xp_context == EXPAND_USER_LIST) {
     return ExpandUserList(xp, num_file, file);
+  }
+  if (xp->xp_context == EXPAND_PACKADD) {
+    return ExpandPackAddDir(pat, num_file, file);
+  }
 
   regmatch.regprog = vim_regcomp(pat, p_magic ? RE_MAGIC : 0);
   if (regmatch.regprog == NULL)
@@ -4241,6 +4246,42 @@ static int ExpandRTDir(char_u *pat, int *num_file, char_u ***file, char *dirname
   return OK;
 }
 
+/// Expand loadplugin names:
+/// 'packpath'/pack/ * /opt/{pat}
+static int ExpandPackAddDir(char_u *pat, int *num_file, char_u ***file)
+{
+  garray_T ga;
+
+  *num_file = 0;
+  *file = NULL;
+  size_t pat_len = STRLEN(pat);
+  ga_init(&ga, (int)sizeof(char *), 10);
+
+  char_u *s = xmalloc((unsigned)(pat_len + 26));
+  sprintf((char *)s, "pack/*/opt/%s*", pat);
+  globpath(p_pp, s, &ga, 0);
+  xfree(s);
+
+  for (int i = 0; i < ga.ga_len; ++i) {
+    char_u *match = ((char_u **)ga.ga_data)[i];
+    s = path_tail(match);
+    char_u *e = s + STRLEN(s);
+    memmove(match, s, e - s + 1);
+  }
+
+  if (GA_EMPTY(&ga)) {
+    return FAIL;
+  }
+
+  // Sort and remove duplicates which can happen when specifying multiple
+  // directories in dirnames.
+  ga_remove_duplicate_strings(&ga);
+
+  *file = ga.ga_data;
+  *num_file = ga.ga_len;
+  return OK;
+}
+
 
 /// Expand `file` for all comma-separated directories in `path`.
 /// Adds matches to `ga`.
diff --git a/src/nvim/version.c b/src/nvim/version.c
index 569a755429..36f9fecf64 100644
--- a/src/nvim/version.c
+++ b/src/nvim/version.c
@@ -203,7 +203,7 @@ static int included_patches[] = {
   // 1495 NA
   // 1494,
   // 1493 NA
-  // 1492,
+  1492,
   // 1491,
   // 1490 NA
   // 1489 NA
diff --git a/src/nvim/vim.h b/src/nvim/vim.h
index 165a44a148..c2f0a0ebd3 100644
--- a/src/nvim/vim.h
+++ b/src/nvim/vim.h
@@ -174,6 +174,7 @@ enum {
   EXPAND_USER,
   EXPAND_SYNTIME,
   EXPAND_USER_ADDR_TYPE,
+  EXPAND_PACKADD,
 };