From 3f33c47e0f9cc976ce14e52865b7ee3a8462a941 Mon Sep 17 00:00:00 2001
From: linrongbin16 <linrongbin16@outlook.com>
Date: Tue, 23 Apr 2024 09:46:21 +0800
Subject: [PATCH] feat(command): add 'file' and 'rev' parameters (#238)

---
 .github/PULL_REQUEST_TEMPLATE.md  |  1 +
 .github/workflows/ci.yml          |  6 ++----
 .gitignore                        |  4 ++++
 README.md                         | 22 +++++++++++++++++++---
 lua/gitlinker.lua                 | 30 ++++++++++++++++++++++++------
 lua/gitlinker/commons/_system.lua |  3 +++
 6 files changed, 53 insertions(+), 13 deletions(-)

diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 8c36c6ee..3b7f5b0c 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -23,3 +23,4 @@
 - [ ] Copy git link in a symlink directory of git repo.
 - [ ] Copy git link in an un-pushed git branch, and receive an expected error.
 - [ ] Copy git link in a pushed git branch but edited file, and receive a warning says the git link could be wrong.
+- [ ] Copy git link with 'file' and 'rev' parameters.
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a2d913a7..ab4565df 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,12 +29,10 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           version: latest
           args: --config-path .stylua.toml ./lua ./spec
-      - uses: stevearc/nvim-typecheck-action@v1
+      - uses: mrcjkb/lua-typecheck-action@v0
         with:
-          path: lua
-          level: Warning
+          directories: lua
           configpath: ".luarc.json"
-          neodev-version: stable
       - uses: cargo-bins/cargo-binstall@main
       - name: Selene
         run: |
diff --git a/.gitignore b/.gitignore
index 748eabfd..b85af1ed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,5 @@
 .luacheckcache
+service.log
+stderr.txt
+stdout.txt
+*nvim_gitlinker.nvim_lua.log
diff --git a/README.md b/README.md
index 1000a5e3..b32ead37 100644
--- a/README.md
+++ b/README.md
@@ -134,11 +134,25 @@ There're several **router types**:
 
 To specify the remote when there're multiple git remotes, add `remote=xxx` parameter, for example:
 
-- `GitLink remote=upstream`: copy `blob` url to clipboard for the `upstream` remote.
-- `GitLink! blame remote=upstream`: open `blame` url in browser for the `upstream` remote.
+- `GitLink remote=upstream`: copy url for the `upstream` remote.
+- `GitLink! blame remote=upstream`: open blame url for the `upstream` remote.
 
 > By default `GitLink` will use the first detected remote (usually it's `origin`).
 
+To specify the relative file path when current buffer's file path is not a normal file name, add `file=xxx` parameter, for example:
+
+- `GitLink file=lua/gitlinker.lua`: copy url for the `lua/gitlinker.lua` file.
+- `GitLink! blame file=README.md`: open blame url for the `README.md` file.
+
+> By default `GitLink` will use the current buffer's file name.
+
+To specify the git commit ID when current repository's commit ID is not on your needs, add `rev=xxx` parameter, for example:
+
+- `GitLink rev=00b3f9a1`: copy url for the `00b3f9a1` commit ID.
+- `GitLink! blame rev=00b3f9a1`: open blame url for the `00b3f9a1` commit ID.
+
+> By default `GitLink` will use the current repository's commit ID.
+
 ### API
 
 > [!NOTE]
@@ -155,7 +169,7 @@ You can also use the `link` API to generate git permlink:
 --- @alias gitlinker.Linker {remote_url:string,protocol:string?,username:string?,password:string?,host:string,port:string?,org:string?,user:string?,repo:string,rev:string,file:string,lstart:integer,lend:integer,file_changed:boolean,default_branch:string?,current_branch:string?}
 --- @alias gitlinker.Router fun(lk:gitlinker.Linker):string?
 --- @alias gitlinker.Action fun(url:string):any
---- @param opts {router_type:string?,router:gitlinker.Router?,action:gitlinker.Action?,lstart:integer?,lend:integer?,message:boolean?,highlight_duration:integer?,remote:string?}?
+--- @param opts {router_type:string?,router:gitlinker.Router?,action:gitlinker.Action?,lstart:integer?,lend:integer?,message:boolean?,highlight_duration:integer?,remote:string?,file:string?,rev:string?}?
 require("gitlinker").link(opts)
 ```
 
@@ -187,6 +201,8 @@ require("gitlinker").link(opts)
   - `message`: Whether print message in nvim command line. By default it uses the configured value while this plugin is been setup (see [Configuration](#configuration)). You can also overwrite this field to change the configured behavior.
   - `highlight_duration`: How long (milliseconds) to highlight the line range. By default it uses the configured value while this plugin is been setup (see [Configuration](#configuration)). You can also overwrite this field to change the configured behavior.
   - `remote`: Specify the git remote. By default is `nil`, it uses the first detected git remote (usually it's `origin`).
+  - `file`: Specify the relative file path. By default is `nil`, it uses the current buffer's file name.
+  - `rev`: Specify the git commit ID. By default is `nil`, it uses the current repository's git commit ID.
 
 ##### `gitlinker.Router`
 
diff --git a/lua/gitlinker.lua b/lua/gitlinker.lua
index 2625394d..977c689d 100644
--- a/lua/gitlinker.lua
+++ b/lua/gitlinker.lua
@@ -200,7 +200,7 @@ local function _blame(lk)
   return _router("blame", lk)
 end
 
---- @param opts {action:gitlinker.Action|boolean,router:gitlinker.Router,lstart:integer,lend:integer,message:boolean?,highlight_duration:integer?,remote:string?}
+--- @param opts {action:gitlinker.Action|boolean,router:gitlinker.Router,lstart:integer,lend:integer,message:boolean?,highlight_duration:integer?,remote:string?,file:string?,rev:string?}
 local _link = function(opts)
   local confs = configs.get()
   local logger = logging.get("gitlinker")
@@ -213,6 +213,14 @@ local _link = function(opts)
   lk.lstart = opts.lstart
   lk.lend = opts.lend
 
+  if str.not_empty(opts.file) then
+    lk.file = opts.file
+    lk.file_changed = false
+  end
+  if str.not_empty(opts.rev) then
+    lk.rev = opts.rev
+  end
+
   async.scheduler()
   local ok, url = pcall(opts.router, lk, true)
   -- logger:debug(
@@ -264,30 +272,36 @@ local _link = function(opts)
   return url
 end
 
---- @type fun(opts:{action:gitlinker.Action?,router:gitlinker.Router,lstart:integer,lend:integer,remote:string?}):string?
+--- @type fun(opts:{action:gitlinker.Action?,router:gitlinker.Router,lstart:integer,lend:integer,remote:string?,file:string?,rev:string?}):string?
 local _void_link = async.void(_link)
 
 --- @param args string?
---- @return {router_type:string,remote:string?}
+--- @return {router_type:string,remote:string?,file:string?,rev:string?}
 local function _parse_args(args)
   args = args or ""
 
   local router_type = "browse"
   local remote = nil
+  local file = nil
+  local rev = nil
   if string.len(args) == 0 then
-    return { router_type = router_type, remote = remote }
+    return { router_type = router_type, remote = remote, file = file, rev = rev }
   end
   local args_splits = vim.split(args, " ", { plain = true, trimempty = true })
   for _, a in ipairs(args_splits) do
     if string.len(a) > 0 then
       if str.startswith(a, "remote=") then
         remote = a:sub(8)
+      elseif str.startswith(a, "file=") then
+        file = a:sub(6)
+      elseif str.startswith(a, "rev=") then
+        rev = a:sub(5)
       else
         router_type = a
       end
     end
   end
-  return { router_type = router_type, remote = remote }
+  return { router_type = router_type, remote = remote, file = file, rev = rev }
 end
 
 --- @param opts gitlinker.Options?
@@ -327,6 +341,8 @@ local function setup(opts)
       lstart = lstart,
       lend = lend,
       remote = parsed.remote,
+      file = parsed.file,
+      rev = parsed.rev,
     })
   end, {
     nargs = "*",
@@ -354,7 +370,7 @@ local function setup(opts)
   end
 end
 
---- @param opts {router_type:string?,router:gitlinker.Router?,action:gitlinker.Action?,lstart:integer?,lend:integer?,message:boolean?,highlight_duration:integer?,remote:string?}?
+--- @param opts {router_type:string?,router:gitlinker.Router?,action:gitlinker.Action?,lstart:integer?,lend:integer?,message:boolean?,highlight_duration:integer?,remote:string?,file:string?,rev:string?}?
 local function link_api(opts)
   opts = opts
     or {
@@ -384,6 +400,8 @@ local function link_api(opts)
     message = opts.message,
     highlight_duration = opts.highlight_duration,
     remote = opts.remote,
+    file = opts.file,
+    rev = opts.rev,
   })
 end
 
diff --git a/lua/gitlinker/commons/_system.lua b/lua/gitlinker/commons/_system.lua
index acf7214c..684bc90e 100644
--- a/lua/gitlinker/commons/_system.lua
+++ b/lua/gitlinker/commons/_system.lua
@@ -19,6 +19,7 @@ local uv = vim.uv or vim.loop
 --- @field stderr? string
 
 --- @class vim.SystemState
+--- @field cmd string[]
 --- @field handle? uv.uv_process_t
 --- @field timer?  uv.uv_timer_t
 --- @field pid? integer
@@ -57,6 +58,7 @@ local function close_handles(state)
 end
 
 --- @class vim.SystemObj
+--- @field cmd string[]
 --- @field pid integer
 --- @field private _state vim.SystemState
 --- @field wait fun(self: vim.SystemObj, timeout?: integer): vim.SystemCompleted
@@ -69,6 +71,7 @@ local SystemObj = {}
 --- @return vim.SystemObj
 local function new_systemobj(state)
   return setmetatable({
+    cmd = state.cmd,
     pid = state.pid,
     _state = state,
   }, { __index = SystemObj })