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Add option to show buffer number + alternate file icon (#669) 

* Add option to show buffer number + alternate file icon

* Address PR comments

* Adjust existing tests for buffer bufnr mode additions

* Revert "Adjust existing tests for buffer bufnr mode additions"

This reverts commit f8422d9f38b4b437a2330101e13c3a4bc50ed920.

* Add missing case for buffers mode == 0

* Fix some test cases for alternate file icon + modified icon

* Add test cases for modes 3 & 4

* Correct typo in README

* Fix buffers component mode can change layout specs

* Detect buffer numbers in lualine_spec bufnr tests

* Minor change to test descriptions

* Delete unnamed buffer for consistent test results between nvim versions

* Add test case for alternate buffer when switching buffers

* Extend switching buffers test

Co-authored-by: Marc Jakobi <marc.jakobi@tiko.energy>
Co-authored-by: Marc Jakobi <mrcjk@p40yoga.localdomain>
This commit is contained in:
Marc Jakobi 2022-05-20 02:48:18 +02:00 committed by GitHub
parent a4e4517ac3
commit 36bf6963ae
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 149 additions and 16 deletions
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10
README.md
View File

@ -442,7 +442,9 @@ sections = {
mode = 0, -- 0: Shows buffer name
-- 1: Shows buffer index
-- 2: Shows buffer name + buffer index
-- 2: Shows buffer name + buffer index
-- 3: Shows buffer number
-- 4: Shows buffer name + buffer number
max_length = vim.o.columns * 2 / 3, -- Maximum width of buffers component,
-- it can also be a function that returns
@ -460,6 +462,12 @@ sections = {
active = 'lualine_{section}_normal', -- Color for active buffer.
inactive = 'lualine_{section}_inactive', -- Color for inactive buffer.
},
symbols = {
modified = ' ●' -- Text to show when the buffer is modified
alternate_file = '#', -- Text to show to indify the alternate file
directory = '', -- Text to show when the buffer is a directory
},
}
}
}

26
lua/lualine/components/buffers/buffer.lua
View File

@ -20,14 +20,18 @@ function Buffer:is_current()
return vim.api.nvim_get_current_buf() == self.bufnr
end
function Buffer:is_alternate()
return vim.fn.bufnr('#') == self.bufnr and not self:is_current()
end
---setup icons, modified status for buffer
function Buffer:get_props()
self.file = modules.utils.stl_escape(vim.api.nvim_buf_get_name(self.bufnr))
self.buftype = vim.api.nvim_buf_get_option(self.bufnr, 'buftype')
self.filetype = vim.api.nvim_buf_get_option(self.bufnr, 'filetype')
local modified = self.options.show_modified_status and vim.api.nvim_buf_get_option(self.bufnr, 'modified')
local modified_icon = self.options.icons_enabled and ' ●' or ' +'
self.modified_icon = modified and modified_icon or ''
self.modified_icon = modified and self.options.symbols.modified or ''
self.alternate_file_icon = self:is_alternate() and self.options.symbols.alternate_file or ''
self.icon = ''
if self.options.icons_enabled then
local dev
@ -43,7 +47,7 @@ function Buffer:get_props()
elseif self.buftype == 'terminal' then
dev, _ = require('nvim-web-devicons').get_icon('zsh')
elseif vim.fn.isdirectory(self.file) == 1 then
dev, _ = '', nil
dev, _ = self.options.symbols.directory, nil
else
dev, _ = require('nvim-web-devicons').get_icon(self.file, vim.fn.expand('#' .. self.bufnr .. ':e'))
end
@ -159,14 +163,24 @@ end
function Buffer:apply_mode(name)
if self.options.mode == 0 then
return string.format('%s%s%s', self.icon, name, self.modified_icon)
return string.format('%s%s%s%s', self.alternate_file_icon, self.icon, name, self.modified_icon)
end
if self.options.mode == 1 then
return string.format('%s %s%s', self.buf_index or '', self.icon, self.modified_icon)
return string.format('%s%s %s%s', self.alternate_file_icon, self.buf_index or '', self.icon, self.modified_icon)
end
return string.format('%s %s%s%s', self.buf_index or '', self.icon, name, self.modified_icon)
if self.options.mode == 2 then
return string.format('%s%s %s%s%s', self.alternate_file_icon, self.buf_index or '', self.icon, name, self.modified_icon)
end
if self.options.mode == 3 then
return string.format('%s%s %s%s', self.alternate_file_icon, self.bufnr or '', self.icon, self.modified_icon)
end
-- if self.options.mode == 4 then
return string.format('%s%s %s%s%s', self.alternate_file_icon, self.bufnr or '', self.icon, name, self.modified_icon)
end
return Buffer

5
lua/lualine/components/buffers/init.lua
View File

@ -22,6 +22,11 @@ local default_options = {
active = nil,
inactive = nil,
},
symbols = {
modified = ' ●',
alternate_file = '#',
directory = '',
}
}
-- This function is duplicated in tabs

124
tests/spec/lualine_spec.lua
View File

@ -558,12 +558,12 @@ describe('Lualine', function()
4: lualine_transitional_lualine_a_buffers_active_to_lualine_a_buffers_inactive = { bg = "#3c3836", fg = "#a89984" }
5: lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
}
|{1: a.txt }
|{1: #a.txt }
{2:}
{3: b.txt }
{4:}
{1: [No Name] }
{5: }|
{MATCH:{5:%s+}|}
]===])
vim.cmd('tabprev')
@ -577,8 +577,8 @@ describe('Lualine', function()
|{1: a.txt }
{2:}
{3: b.txt }
{3: [No Name] }
{4: }|
{3: #[No Name] }
{MATCH:{4:%s+}|}
]===])
vim.cmd('tabprev')
@ -591,11 +591,11 @@ describe('Lualine', function()
5: lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
}
|{1: a.txt }
{1: b.txt }
{1: #b.txt }
{2:}
{3: [No Name] }
{4:}
{5: }|
{MATCH:{5:%s+}|}
]===])
end)
@ -633,7 +633,7 @@ describe('Lualine', function()
4: lualine_transitional_lualine_a_buffers_active_to_lualine_a_buffers_inactive = { bg = "#3c3836", fg = "#a89984" }
5: lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
}
{MATCH:|{1: %d+ }}
{MATCH:|{1: #%d+ }}
{2:}
{MATCH:{3: %d+ }}
{4:}
@ -652,7 +652,7 @@ describe('Lualine', function()
4: lualine_transitional_lualine_a_buffers_active_to_lualine_a_buffers_inactive = { bg = "#3c3836", fg = "#a89984" }
5: lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
}
{MATCH:|{1: %d+ a.txt }}
{MATCH:|{1: #%d+ a.txt }}
{2:}
{MATCH:{3: %d+ b.txt }}
{4:}
@ -684,7 +684,7 @@ describe('Lualine', function()
2: lualine_transitional_lualine_a_buffers_active_to_lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
3: lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
}
|{1: [No Name] + }
|{1: [No Name] ● }
{2:}
{3: }|
]===])
@ -751,6 +751,112 @@ describe('Lualine', function()
{3: }|
]===])
end)
it('can show buffer numbers instead of indices (without file names)', function()
local conf = vim.deepcopy(tab_conf)
conf.tabline.lualine_a = { { 'buffers', mode = 3, max_length = 1e3, icons_enabled = false } }
require('lualine').setup(conf)
require('lualine').statusline()
vim.cmd('e a.txt')
vim.cmd('silent! bd #') -- NeoVim 0.5 does not create an unnamed buffer. This ensures consistent results between NeoVim versions.
vim.cmd('e b.txt')
local bufnr_a = vim.fn.bufnr('a.txt')
local bufnr_b = vim.fn.bufnr('b.txt')
tabline:expect([===[
highlights = {
1: lualine_a_buffers_inactive = { bg = "#3c3836", bold = true, fg = "#a89984" }
2: lualine_transitional_lualine_a_buffers_inactive_to_lualine_a_buffers_active = { bg = "#a89984", fg = "#3c3836" }
3: lualine_a_buffers_active = { bg = "#a89984", bold = true, fg = "#282828" }
4: lualine_transitional_lualine_a_buffers_active_to_lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
5: lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
}
|{1: #]===] .. bufnr_a .. [===[ }
{2:}
{3: ]===] .. bufnr_b .. [===[ }
{4:}
{MATCH:{5:%s+}|}
]===])
end)
it('can show buffer numbers instead of indices (with file names)', function()
local conf = vim.deepcopy(tab_conf)
conf.tabline.lualine_a = { { 'buffers', mode = 4, max_length = 1e3, icons_enabled = false } }
vim.cmd('e a.txt')
vim.cmd('silent! bd #') -- NeoVim 0.5 does not create an unnamed buffer. This ensures consistent results between NeoVim versions.
vim.cmd('e b.txt')
local bufnr_a = vim.fn.bufnr('a.txt')
local bufnr_b = vim.fn.bufnr('b.txt')
require('lualine').setup(conf)
require('lualine').statusline()
tabline:expect([===[
highlights = {
1: lualine_a_buffers_inactive = { bg = "#3c3836", bold = true, fg = "#a89984" }
2: lualine_transitional_lualine_a_buffers_inactive_to_lualine_a_buffers_active = { bg = "#a89984", fg = "#3c3836" }
3: lualine_a_buffers_active = { bg = "#a89984", bold = true, fg = "#282828" }
4: lualine_transitional_lualine_a_buffers_active_to_lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
5: lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
}
|{1: #]===] .. bufnr_a .. [===[ a.txt }
{2:}
{3: ]===] .. bufnr_b .. [===[ b.txt }
{4:}
{MATCH:{5:%s+}|}
]===])
end)
it('displays alternate buffer correctly when switching buffers', function()
local conf = vim.deepcopy(tab_conf)
conf.tabline.lualine_a = { { 'buffers', mode = 3, max_length = 1e3, icons_enabled = false } }
require('lualine').setup(conf)
require('lualine').statusline()
vim.cmd('e a.txt')
vim.cmd('silent! bd #') -- NeoVim 0.5 does not create an unnamed buffer. This ensures consistent results between NeoVim versions.
vim.cmd('e b.txt')
local bufnr_a = vim.fn.bufnr('a.txt')
local bufnr_b = vim.fn.bufnr('b.txt')
tabline:expect([===[
highlights = {
1: lualine_a_buffers_inactive = { bg = "#3c3836", bold = true, fg = "#a89984" }
2: lualine_transitional_lualine_a_buffers_inactive_to_lualine_a_buffers_active = { bg = "#a89984", fg = "#3c3836" }
3: lualine_a_buffers_active = { bg = "#a89984", bold = true, fg = "#282828" }
4: lualine_transitional_lualine_a_buffers_active_to_lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
5: lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
}
|{1: #]===] .. bufnr_a .. [===[ }
{2:}
{3: ]===] .. bufnr_b .. [===[ }
{4:}
{MATCH:{5:%s+}|}
]===])
vim.cmd('e a.txt')
tabline:expect([===[
highlights = {
1: lualine_a_buffers_active = { bg = "#a89984", bold = true, fg = "#282828" }
2: lualine_transitional_lualine_a_buffers_active_to_lualine_a_buffers_inactive = { bg = "#3c3836", fg = "#a89984" }
3: lualine_a_buffers_inactive = { bg = "#3c3836", bold = true, fg = "#a89984" }
4: lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
}
|{1: ]===] .. bufnr_a .. [===[ }
{2:}
{3: #]===] .. bufnr_b .. [===[ }
{MATCH:{4:%s+}|}
]===])
vim.cmd('bprev')
tabline:expect([===[
highlights = {
1: lualine_a_buffers_inactive = { bg = "#3c3836", bold = true, fg = "#a89984" }
2: lualine_transitional_lualine_a_buffers_inactive_to_lualine_a_buffers_active = { bg = "#a89984", fg = "#3c3836" }
3: lualine_a_buffers_active = { bg = "#a89984", bold = true, fg = "#282828" }
4: lualine_transitional_lualine_a_buffers_active_to_lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
5: lualine_c_normal = { bg = "#3c3836", fg = "#a89984" }
}
|{1: #]===] .. bufnr_a .. [===[ }
{2:}
{3: ]===] .. bufnr_b .. [===[ }
{4:}
{MATCH:{5:%s+}|}
]===])
end)
end)
describe('windows component', function()