checkpoint

1 files changed, 75 insertions, 0 deletions

diff --git a/config/essentials/vis/fzf-mru.lua b/config/essentials/vis/fzf-mru.lua
new file mode 100644
index 0000000..6c2510d
--- /dev/null
+++ b/config/essentials/vis/fzf-mru.lua
@@ -0,0 +1,75 @@
+local module = {}
+module.fzfmru_filepath = os.getenv("XDG_CACHE_HOME") .. "/vis-fzf-mru"
+module.fzfmru_path = "fzf"
+module.fzfmru_args = "--height=40%"
+module.fzfmru_history = 20
+
+local function read_mru()
+    local mru = {}
+    local f = io.open(module.fzfmru_filepath)
+    if f == nil then return end
+    for line in f:lines() do table.insert(mru, line) end
+    f:close()
+
+    return mru
+end
+
+local function write_mru(win)
+    local file_path = win.file.path
+    local mru = read_mru()
+
+    -- check if mru data exists
+    if mru == nil then mru = {} end
+    -- check if we opened any file
+    if file_path == nil then return end
+    -- check duplicate
+    if file_path == mru[1] then return end
+
+    local f = io.open(module.fzfmru_filepath, "w+")
+    if f == nil then return end
+
+    table.insert(mru, 1, file_path)
+
+    for i, k in ipairs(mru) do
+        if i > module.fzfmru_history then break end
+        if i == 1 or k ~= file_path then
+            f:write(string.format("%s\n", k))
+        end
+    end
+
+    f:close()
+end
+
+vis.events.subscribe(vis.events.WIN_OPEN, write_mru)
+
+vis:command_register("fzfmru", function(argv)
+    local command = "cat " .. module.fzfmru_filepath .. " | " ..
+                        module.fzfmru_path .. " " .. module.fzfmru_args .. " " ..
+                        table.concat(argv, " ")
+
+    local file = io.popen(command)
+    local output = file:read()
+    local _, _, status = file:close()
+
+    if status == 0 then
+        vis:command(string.format("e '%s'", output))
+    elseif status == 1 then
+        vis:info(string.format(
+                     "fzf-open: No match. Command %s exited with return value %i.",
+                     command, status))
+    elseif status == 2 then
+        vis:info(string.format(
+                     "fzf-open: Error. Command %s exited with return value %i.",
+                     command, status))
+    elseif status ~= 130 then
+        vis:info(string.format(
+                     "fzf-open: Unknown exit status %i. command %s exited with return value %i",
+                     status, command, status, status))
+    end
+
+    vis:redraw()
+
+    return true
+end)
+
+return module