1 files changed, 152 insertions, 0 deletions
diff --git a/mac/.config/LunarVim/lua/lvim/utils/git.lua b/mac/.config/LunarVim/lua/lvim/utils/git.lua
new file mode 100644
index 0000000..d5f1d92
--- /dev/null
+++ b/mac/.config/LunarVim/lua/lvim/utils/git.lua
@@ -0,0 +1,152 @@
+local M = {}
+
+local Log = require "lvim.core.log"
+local fmt = string.format
+local if_nil = vim.F.if_nil
+
+local function git_cmd(opts)
+  local plenary_loaded, Job = pcall(require, "plenary.job")
+  if not plenary_loaded then
+    return 1, { "" }
+  end
+
+  opts = opts or {}
+  opts.cwd = opts.cwd or get_lvim_base_dir()
+
+  local stderr = {}
+  local stdout, ret = Job:new({
+    command = "git",
+    args = opts.args,
+    cwd = opts.cwd,
+    on_stderr = function(_, data)
+      table.insert(stderr, data)
+    end,
+  }):sync(10000)
+
+  if not vim.tbl_isempty(stderr) then
+    Log:debug(stderr)
+  end
+
+  if not vim.tbl_isempty(stdout) then
+    Log:debug(stdout)
+  end
+
+  return ret, stdout, stderr
+end
+
+local function safe_deep_fetch()
+  local ret, result, error = git_cmd { args = { "rev-parse", "--is-shallow-repository" } }
+  if ret ~= 0 then
+    Log:error(vim.inspect(error))
+    return
+  end
+  -- git fetch --unshallow will cause an error on a complete clone
+  local fetch_mode = result[1] == "true" and "--unshallow" or "--all"
+  ret = git_cmd { args = { "fetch", fetch_mode } }
+  if ret ~= 0 then
+    Log:error(fmt "Git fetch %s failed! Please pull the changes manually in %s", fetch_mode, get_lvim_base_dir())
+    return
+  end
+  if fetch_mode == "--unshallow" then
+    ret = git_cmd { args = { "remote", "set-branches", "origin", "*" } }
+    if ret ~= 0 then
+      Log:error(fmt "Git fetch %s failed! Please pull the changes manually in %s", fetch_mode, get_lvim_base_dir())
+      return
+    end
+  end
+  return true
+end
+
+---pulls the latest changes from github
+function M.update_base_lvim()
+  Log:info "Checking for updates"
+
+  if not vim.loop.fs_access(get_lvim_base_dir(), "w") then
+    Log:warn(fmt("Lunarvim update aborted! cannot write to %s", get_lvim_base_dir()))
+    return
+  end
+
+  if not safe_deep_fetch() then
+    return
+  end
+
+  local ret
+
+  ret = git_cmd { args = { "diff", "--quiet", "@{upstream}" } }
+  if ret == 0 then
+    Log:info "LunarVim is already up-to-date"
+    return
+  end
+
+  ret = git_cmd { args = { "merge", "--ff-only", "--progress" } }
+  if ret ~= 0 then
+    Log:error("Update failed! Please pull the changes manually in " .. get_lvim_base_dir())
+    return
+  end
+
+  return true
+end
+
+---Switch Lunarvim to the specified development branch
+---@param branch string
+function M.switch_lvim_branch(branch)
+  if not safe_deep_fetch() then
+    return
+  end
+  local args = { "switch", branch }
+
+  if branch:match "^[0-9]" then
+    -- avoids producing an error for tags
+    vim.list_extend(args, { "--detach" })
+  end
+
+  local ret = git_cmd { args = args }
+  if ret ~= 0 then
+    Log:error "Unable to switch branches! Check the log for further information"
+    return
+  end
+  return true
+end
+
+---Get the current Lunarvim development branch
+---@return string|nil
+function M.get_lvim_branch()
+  local _, results = git_cmd { args = { "rev-parse", "--abbrev-ref", "HEAD" } }
+  local branch = if_nil(results[1], "")
+  return branch
+end
+
+---Get currently checked-out tag of Lunarvim
+---@return string
+function M.get_lvim_tag()
+  local args = { "describe", "--tags", "--abbrev=0" }
+
+  local _, results = git_cmd { args = args }
+  local tag = if_nil(results[1], "")
+  return tag
+end
+
+---Get the description of currently checked-out commit of Lunarvim
+---@return string|nil
+function M.get_lvim_description()
+  local _, results = git_cmd { args = { "describe", "--dirty", "--always" } }
+
+  local description = if_nil(results[1], M.get_lvim_branch())
+  return description
+end
+
+---Get currently running version of Lunarvim
+---@return string
+function M.get_lvim_version()
+  local current_branch = M.get_lvim_branch()
+
+  local lvim_version
+  if current_branch ~= "HEAD" or "" then
+    lvim_version = current_branch .. "-" .. M.get_lvim_description()
+  else
+    lvim_version = "v" .. M.get_lvim_tag()
+  end
+  return lvim_version
+end
+
+return M