patch 7.4.1550

Problem:    Cannot load packages early.
Solution:   Add the ":packloadall" command.

src/ex_cmds.h

@@ -1014,6 +1014,9 @@ EX(CMD_print,		"print",	ex_print,
 EX(CMD_packadd,		"packadd",	ex_packadd,
 			BANG|FILE1|NEEDARG|TRLBAR|SBOXOK|CMDWIN,
 			ADDR_LINES),
+EX(CMD_packloadall,	"packloadall",	ex_packloadall,
+			BANG|TRLBAR|SBOXOK|CMDWIN,
+			ADDR_LINES),
 EX(CMD_pclose,		"pclose",	ex_pclose,
 			BANG|TRLBAR,
 			ADDR_LINES),

src/ex_cmds2.c

@@ -3189,14 +3189,21 @@ theend:
     vim_free(ffname);
 }
 
+static int did_source_packages = FALSE;
+
 /*
+ * ":packloadall"
  * Find plugins in the package directories and source them.
  */
     void
-source_packages()
+ex_packloadall(exarg_T *eap)
 {
-    do_in_path(p_pp, (char_u *)"pack/*/start/*", DIP_ALL + DIP_DIR,
+    if (!did_source_packages || (eap != NULL && eap->forceit))
+    {
+	did_source_packages = TRUE;
+	do_in_path(p_pp, (char_u *)"pack/*/start/*", DIP_ALL + DIP_DIR,
 							add_pack_plugin, p_pp);
+    }
 }
 
 /*

src/main.c

@@ -634,7 +634,7 @@ vim_main2(int argc UNUSED, char **argv UNUSED)
 # endif
 	TIME_MSG("loading plugins");
 
-	source_packages();
+	ex_packloadall(NULL);
 	TIME_MSG("loading packages");
     }
 #endif

src/proto/ex_cmds2.pro

@@ -62,8 +62,7 @@ void ex_compiler(exarg_T *eap);
 void ex_runtime(exarg_T *eap);
 int source_runtime(char_u *name, int all);
 int do_in_runtimepath(char_u *name, int all, void (*callback)(char_u *fname, void *ck), void *cookie);
-void source_packages(void);
+void ex_packloadall(exarg_T *eap);
-void ex_loadplugin(exarg_T *eap);
 void ex_packadd(exarg_T *eap);
 void ex_options(exarg_T *eap);
 void ex_source(exarg_T *eap);

src/testdir/test_packadd.vim

@@ -80,3 +80,20 @@ func Test_packadd_completion()
   call assert_equal("packadd pluginC", li[2])
   call assert_equal("packadd ", li[3])
 endfunc
+
+func Test_packloadall()
+  let plugindir = &packpath . '/pack/mine/start/foo/plugin'
+  call mkdir(plugindir, 'p')
+  call writefile(['let g:plugin_foo_number = 1234'], plugindir . '/bar.vim')
+  packloadall
+  call assert_equal(1234, g:plugin_foo_number)
+
+  " only works once
+  call writefile(['let g:plugin_bar_number = 4321'], plugindir . '/bar2.vim')
+  packloadall
+  call assert_false(exists('g:plugin_bar_number'))
+
+  " works when ! used
+  packloadall!
+  call assert_equal(4321, g:plugin_bar_number)
+endfunc

src/version.c

@@ -743,6 +743,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1550,
 /**/
     1549,
 /**/