1 files changed, 82 insertions, 0 deletions
diff --git a/lua/nvim-lsp-installer/core/clients/github.lua b/lua/nvim-lsp-installer/core/clients/github.lua
new file mode 100644
index 00000000..080edbb0
--- /dev/null
+++ b/lua/nvim-lsp-installer/core/clients/github.lua
@@ -0,0 +1,82 @@
+local fetch = require "nvim-lsp-installer.core.fetch"
+local Data = require "nvim-lsp-installer.data"
+local log = require "nvim-lsp-installer.log"
+
+local list_find_first = Data.list_find_first
+
+local M = {}
+
+---@alias GitHubRelease {tag_name:string, prerelease: boolean, draft: boolean}
+---@alias GitHubTag {name: string}
+
+---@param repo string The GitHub repo ("username/repo").
+---@param callback fun(error: string|nil, data: GitHubRelease[]|nil)
+function M.fetch_releases(repo, callback)
+    log.fmt_trace("Fetching GitHub releases for repo=%s", repo)
+    fetch(("https://api.github.com/repos/%s/releases"):format(repo), function(err, response)
+        if err then
+            log.fmt_error("Failed to fetch releases for repo=%s", repo)
+            return callback("Failed to fetch GitHub releases.", nil)
+        end
+        callback(nil, vim.json.decode(response))
+    end)
+end
+
+---@alias FetchLatestGithubReleaseOpts {tag_name_pattern:string}
+---@param repo string The GitHub repo ("username/repo").
+---@param opts FetchLatestGithubReleaseOpts|nil
+---@param callback fun(error: string|nil, data: GitHubRelease|nil)
+function M.fetch_latest_release(repo, opts, callback)
+    M.fetch_releases(repo, function(err, releases)
+        if err then
+            callback(err, nil)
+            return
+        end
+
+        local latest_release = list_find_first(releases, function(_release)
+            ---@type GitHubRelease
+            local release = _release
+            local is_stable_release = not release.prerelease and not release.draft
+            if opts.tag_name_pattern then
+                return is_stable_release and release.tag_name:match(opts.tag_name_pattern)
+            end
+            return is_stable_release
+        end)
+
+        if not latest_release then
+            log.fmt_info("Failed to find latest release. repo=%s, opts=%s", repo, opts)
+            return callback("Failed to find latest release.", nil)
+        end
+
+        log.fmt_debug("Resolved latest version repo=%s, tag_name=%s", repo, latest_release.tag_name)
+        callback(nil, latest_release)
+    end)
+end
+
+---@param repo string The GitHub repo ("username/repo").
+---@param callback fun(err: string|nil, tags: GitHubTag[]|nil)
+function M.fetch_tags(repo, callback)
+    fetch(("https://api.github.com/repos/%s/tags"):format(repo), function(err, response)
+        if err then
+            log.fmt_error("Failed to fetch tags for repo=%s", err)
+            return callback("Failed to fetch tags.", nil)
+        end
+        callback(nil, vim.json.decode(response))
+    end)
+end
+
+---@param repo string The GitHub repo ("username/repo").
+---@param callback fun(err: string|nil, latest_tag: GitHubTag|nil)
+function M.fetch_latest_tag(repo, callback)
+    M.fetch_tags(repo, function(err, tags)
+        if err then
+            return callback(err, nil)
+        end
+        if vim.tbl_count(tags) == 0 then
+            return callback("No tags found.", nil)
+        end
+        callback(nil, tags[1])
+    end)
+end
+
+return M