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authorzeertzjq <zeertzjq@outlook.com>2023-04-18 14:09:29 +0800
committerzeertzjq <zeertzjq@outlook.com>2023-04-18 14:20:44 +0800
commitc0f10d3fe018990b68cfa47bd84693449100f449 (patch)
tree43d0a05dfa50126d915c7ea86482fc139d210855
parent240c41e1af556cd17329d5c46d26a3ca91be2db8 (diff)
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vim-patch:9.0.0783: ":!" doesn't do anything but does update the previous command
Problem: ":!" doesn't do anything but does update the previous command. Solution: Do not have ":!" change the previous command. (Martin Tournoij, closes vim/vim#11372) https://github.com/vim/vim/commit/8107a2a8af80a53a61734b600539c5beb4782991 Co-authored-by: Bram Moolenaar <Bram@vim.org>
-rw-r--r--runtime/doc/various.txt1
-rw-r--r--src/nvim/ex_cmds.c6
-rw-r--r--test/old/testdir/test_shell.vim31
3 files changed, 38 insertions, 0 deletions
diff --git a/runtime/doc/various.txt b/runtime/doc/various.txt
index 7b0e724e31..84449cdae6 100644
--- a/runtime/doc/various.txt
+++ b/runtime/doc/various.txt
@@ -248,6 +248,7 @@ g8 Print the hex values of the bytes used in the
<
*:!cmd* *:!*
:!{cmd} Execute {cmd} with 'shell'. See also |:terminal|.
+ `:!` without a {cmd} is a no-op, it does nothing.
The command runs in a non-interactive shell connected
to a pipe (not a terminal). Use |:terminal| to run an
diff --git a/src/nvim/ex_cmds.c b/src/nvim/ex_cmds.c
index a1b43113a6..cc8c4aeca8 100644
--- a/src/nvim/ex_cmds.c
+++ b/src/nvim/ex_cmds.c
@@ -1012,6 +1012,12 @@ void do_bang(int addr_count, exarg_T *eap, bool forceit, bool do_in, bool do_out
}
} while (trailarg != NULL);
+ // Don't do anything if there is no command as there isn't really anything
+ // useful in running "sh -c ''". Avoids changing "prevcmd".
+ if (strlen(newcmd) == 0) {
+ return;
+ }
+
xfree(prevcmd);
prevcmd = newcmd;
diff --git a/test/old/testdir/test_shell.vim b/test/old/testdir/test_shell.vim
index 3d0056bfc1..b65752dbf2 100644
--- a/test/old/testdir/test_shell.vim
+++ b/test/old/testdir/test_shell.vim
@@ -206,4 +206,35 @@ func Test_set_shell()
call delete('Xtestout')
endfunc
+func Test_shell_repeat()
+ CheckUnix
+
+ let save_shell = &shell
+
+ call writefile(['#!/bin/sh', 'echo "Cmd: [$*]" > Xlog'], 'Xtestshell', 'D')
+ call setfperm('Xtestshell', "r-x------")
+ set shell=./Xtestshell
+ defer delete('Xlog')
+
+ call feedkeys(":!echo coconut\<CR>", 'xt') " Run command
+ call assert_equal(['Cmd: [-c echo coconut]'], readfile('Xlog'))
+
+ call feedkeys(":!!\<CR>", 'xt') " Re-run previous
+ call assert_equal(['Cmd: [-c echo coconut]'], readfile('Xlog'))
+
+ call writefile(['empty'], 'Xlog')
+ call feedkeys(":!\<CR>", 'xt') " :! is a no-op
+ call assert_equal(['empty'], readfile('Xlog'))
+
+ call feedkeys(":!!\<CR>", 'xt') " :! doesn't clear previous command
+ call assert_equal(['Cmd: [-c echo coconut]'], readfile('Xlog'))
+
+ call feedkeys(":!echo banana\<CR>", 'xt') " Make sure setting previous command keeps working after a :! no-op
+ call assert_equal(['Cmd: [-c echo banana]'], readfile('Xlog'))
+ call feedkeys(":!!\<CR>", 'xt')
+ call assert_equal(['Cmd: [-c echo banana]'], readfile('Xlog'))
+
+ let &shell = save_shell
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab