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fix(system): don't treat NUL at start as no input (#34167)

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This commit is contained in:
zeertzjq
2025-05-25 09:28:11 +08:00
parent 334d8f506f
commit cefc91a82e
2 changed files with 11 additions and 5 deletions
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2
src/nvim/os/shell.c
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@@ -856,7 +856,7 @@ static int do_os_system(char **argv, const char *input, size_t len, char **outpu
{
out_data_decide_throttle(0); // Initialize throttle decider.
out_data_ring(NULL, 0); // Initialize output ring-buffer.
bool has_input = (input != NULL && input[0] != NUL);
bool has_input = (input != NULL && len > 0);
// the output buffer
StringBuilder buf = KV_INITIAL_VALUE;

14
test/functional/vimscript/system_spec.lua
View File

@@ -374,8 +374,8 @@ describe('system()', function()
describe('with linefeed characters inside List items', function()
it('converts linefeed characters to NULs', function()
eq(
'l1\001p2\nline2\001a\001b\nl3',
eval([[system('cat -', ["l1\np2", "line2\na\nb", 'l3'])]])
'\001l1\001p2\nline2\001a\001b\nl3',
eval([[system('cat -', ["\nl1\np2", "line2\na\nb", 'l3'])]])
)
end)
end)
@@ -496,8 +496,8 @@ describe('systemlist()', function()
describe('with linefeed characters inside list items', function()
it('converts linefeed characters to NULs', function()
eq(
{ 'l1\np2', 'line2\na\nb', 'l3' },
eval([[systemlist('cat -', ["l1\np2", "line2\na\nb", 'l3'])]])
{ '\nl1\np2', 'line2\na\nb', 'l3' },
eval([[systemlist('cat -', ["\nl1\np2", "line2\na\nb", 'l3'])]])
)
end)
end)
@@ -558,6 +558,12 @@ end)
describe('shell :!', function()
before_each(clear)
it(':{range}! works when the first char is NUL #34163', function()
api.nvim_buf_set_lines(0, 0, -1, true, { '\0hello', 'hello' })
command('%!cat')
eq({ '\0hello', 'hello' }, api.nvim_buf_get_lines(0, 0, -1, true))
end)
it(':{range}! with powershell filter/redirect #16271 #19250', function()
local screen = Screen.new(500, 8)
local found = n.set_shell_powershell(true)