Add jj and herdr

1 files changed, 160 insertions, 0 deletions

diff --git a/dot_config/herdr/plugins/github/herdr-splits-d880c4924f2b/lua/herdr-splits/herdr.lua b/dot_config/herdr/plugins/github/herdr-splits-d880c4924f2b/lua/herdr-splits/herdr.lua
new file mode 100644
index 0000000..a5485ad
--- /dev/null
+++ b/dot_config/herdr/plugins/github/herdr-splits-d880c4924f2b/lua/herdr-splits/herdr.lua
@@ -0,0 +1,160 @@
+---Herdr CLI wrapper. All Herdr subprocess calls go through this module.
+---@class HerdrSplitsHerdr
+local M = {}
+
+local config = require('herdr-splits.config')
+
+---Resolve the herdr binary path.
+---@return string
+function M.herdr_bin()
+  return config.herdr_bin or vim.env.HERDR_BIN_PATH or 'herdr'
+end
+
+---Check if Neovim is running inside a Herdr session.
+---@return boolean
+function M.is_in_session()
+  return vim.env.HERDR_ENV == '1' and vim.env.HERDR_PANE_ID ~= nil and #vim.env.HERDR_PANE_ID > 0
+end
+
+---Get the current Herdr pane ID.
+---@return string|nil
+function M.current_pane_id()
+  if not M.is_in_session() then
+    return nil
+  end
+  return vim.env.HERDR_PANE_ID
+end
+
+---Run a herdr CLI command and return stdout, stderr, and exit code.
+---@param args string[]
+---@return string stdout, string stderr, number exit_code
+local function herdr_exec(args)
+  local cmd = vim.list_extend({ M.herdr_bin() }, args, 1, #args)
+  local obj = vim.system(cmd, { text = true }):wait()
+  return obj.stdout, obj.stderr, obj.code
+end
+
+---Check if the current Herdr pane is at the layout boundary in the given direction.
+---Calls `herdr pane edges --current` and parses the JSON response.
+---@param direction '"left"'|'"right"'|'"up"'|'"down"'
+---@return boolean|nil true if at edge, false if neighbor exists, nil on error
+function M.current_pane_at_edge(direction)
+  if not M.is_in_session() then
+    return nil
+  end
+
+  local edge_key = direction
+  local stdout, _, code = herdr_exec({ 'pane', 'edges', '--current' })
+
+  if code ~= 0 or not stdout or #stdout == 0 then
+    return nil
+  end
+
+  local ok, data = pcall(vim.json.decode, stdout)
+  if
+    not ok
+    or type(data) ~= 'table'
+    or type(data.result) ~= 'table'
+    or type(data.result.edges) ~= 'table'
+  then
+    return nil
+  end
+
+  local at_edge = data.result.edges[edge_key]
+  if type(at_edge) ~= 'boolean' then
+    return nil
+  end
+  return at_edge
+end
+
+---Check if the current Herdr pane is zoomed.
+---Calls `herdr pane layout --current` and parses JSON.
+---@return boolean|nil true if zoomed, false if not, nil on error
+function M.current_pane_is_zoomed()
+  if not M.is_in_session() then
+    return nil
+  end
+
+  local stdout, _, code = herdr_exec({ 'pane', 'layout', '--current' })
+
+  if code ~= 0 or not stdout or #stdout == 0 then
+    return nil
+  end
+
+  local ok, data = pcall(vim.json.decode, stdout)
+  if
+    not ok
+    or type(data) ~= 'table'
+    or type(data.result) ~= 'table'
+    or type(data.result.layout) ~= 'table'
+  then
+    return nil
+  end
+
+  local zoomed = data.result.layout.zoomed
+  if type(zoomed) ~= 'boolean' then
+    return nil
+  end
+  return zoomed
+end
+
+---Focus a Herdr pane in the given direction.
+---Calls `herdr pane focus --direction <dir> --current`.
+---@param direction '"left"'|'"right"'|'"up"'|'"down"'
+---@return boolean true on success
+function M.focus_pane(direction)
+  if not M.is_in_session() then
+    return false
+  end
+
+  local _, _, code = herdr_exec({ 'pane', 'focus', '--direction', direction, '--current' })
+  return code == 0
+end
+
+---Unzoom the current Herdr pane (turn off zoom).
+---Calls `herdr pane zoom --off --current`.
+---@return boolean true on success
+function M.unzoom()
+  if not M.is_in_session() then
+    return false
+  end
+
+  local _, _, code = herdr_exec({ 'pane', 'zoom', '--off', '--current' })
+  return code == 0
+end
+
+---Check whether auto-unzoom is enabled.
+---Reads `config.unzoom_on_nav` (resolved from setup(); default: enabled).
+---@return boolean
+function M.unzoom_enabled()
+  return config.unzoom_on_nav ~= false
+end
+
+---Edge-wrap behavior across the Herdr pane boundary, read from the resolved
+---in-memory config (the same value written to the shared conf that the
+---Herdr-side scripts read). `stop` suppresses wrap-across-boundary on both
+---the plain-pane side (handled by the Herdr script) and the Neovim
+---edge-wrap side (handled here). Anything else defaults to `wrap`.
+---@return '"wrap"'|'"stop"'
+function M.nav_at_edge()
+  return config.nav_at_edge == 'stop' and 'stop' or 'wrap'
+end
+
+---Resize the current Herdr pane in the given direction.
+---Calls `herdr pane resize --direction <dir> --amount <float> --current`.
+---@param direction '"left"'|'"right"'|'"up"'|'"down"'
+---@param amount number Float ratio (e.g., 0.03 = 3% of terminal dimension)
+---@return boolean true on success
+function M.resize_pane(direction, amount)
+  if not M.is_in_session() then
+    return false
+  end
+
+  local amount_str = string.format('%.4f', amount)
+  local _, _, code = herdr_exec({
+    'pane', 'resize', '--direction', direction, '--amount', amount_str, '--current',
+  })
+  return code == 0
+end
+
+return M