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cscope: implement vim's pre-path feature (#40)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| local utils = require("cscope_maps.utils") | ||
| local log = require("cscope_maps.utils.log") | ||
|
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| local M = {} | ||
|
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| --- conns = { {file = db_file, pre_path = db_pre_path}, ... } | ||
| M.conns = {} | ||
| M.global_conn = nil | ||
|
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| ---Get all db connections | ||
| ---If global connection is declared then use that | ||
| ---@return table | ||
| M.all_conns = function() | ||
| M.update_global_conn() | ||
| return M.global_conn or M.conns | ||
| end | ||
|
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| ---Get primary db connection | ||
| ---If global connection is declared then use that | ||
| ---@return table | ||
| M.primary_conn = function() | ||
| M.update_global_conn() | ||
| if M.global_conn then | ||
| return M.global_conn[1] | ||
| end | ||
| return M.conns[1] | ||
| end | ||
|
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| ---Update primary db connection | ||
| ---@param file string | ||
| ---@param pre_path string | ||
| M.update_primary_conn = function(file, pre_path) | ||
| M.conns[1].file = vim.fs.normalize(file) | ||
| M.conns[1].pre_path = vim.fs.normalize(pre_path) | ||
| end | ||
|
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| ---Update global db connection | ||
| M.update_global_conn = function() | ||
| if vim.g.cscope_maps_db_file then | ||
| local file, pre_path = M.sp_file_pre_path(vim.g.cscope_maps_db_file) | ||
| M.global_conn = { { file = file, pre_path = pre_path } } | ||
| else | ||
| M.global_conn = nil | ||
| end | ||
| end | ||
|
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| ---Split input to ":Cs db add" into file and pre_path | ||
| ---@param path string | ||
| ---@return string | ||
| ---@return string|nil | ||
| M.sp_file_pre_path = function(path) | ||
| local sp = vim.split(path, ":") | ||
| local file = vim.fs.normalize(sp[1]) | ||
|
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| ---@type string|nil | ||
| local pre_path = sp[2] | ||
|
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| -- use parent as pre_path if its "@" | ||
| if pre_path and pre_path == "@" then | ||
| pre_path = utils.get_path_parent(file) | ||
| end | ||
|
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||
| -- make it nil if its empty | ||
| if pre_path and pre_path == "" then | ||
| pre_path = nil | ||
| end | ||
|
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| -- if pre_path exists, normalize it | ||
| if pre_path then | ||
| pre_path = vim.fs.normalize(pre_path) | ||
| end | ||
|
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| return file, pre_path | ||
| end | ||
|
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| ---Find index of db in all connections | ||
| ---@param file string | ||
| ---@param pre_path string|nil | ||
| ---@return integer | ||
| M.find = function(file, pre_path) | ||
| for i, cons in ipairs(M.conns) do | ||
| if cons.file == file and ((pre_path and cons.pre_path == pre_path) or cons.pre_path == nil) then | ||
| return i | ||
| end | ||
| end | ||
|
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| return -1 | ||
| end | ||
|
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| ---Add db in db connections | ||
| ---@param path string | ||
| M.add = function(path) | ||
| local file, pre_path = M.sp_file_pre_path(path) | ||
| if M.find(file, pre_path) == -1 then | ||
| table.insert(M.conns, { file = file, pre_path = pre_path }) | ||
| end | ||
| end | ||
|
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| ---Remove db from db connections | ||
| ---Primary db connection will not be removed | ||
| ---@param path string | ||
| M.remove = function(path) | ||
| local file, pre_path = M.sp_file_pre_path(path) | ||
| local loc = M.find(file, pre_path) | ||
| -- do not remove first entry | ||
| if loc > 1 then | ||
| table.remove(M.conns, loc) | ||
| end | ||
| end | ||
|
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| M.print_conns = function() | ||
| if not M.conns then | ||
| log.warn("No connections") | ||
| end | ||
|
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| for _, conn in ipairs(M.conns) do | ||
| log.warn(string.format("db=%s pre_path=%s", conn.file, conn.pre_path)) | ||
| end | ||
| end | ||
|
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| return M |
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