Proxy Support (#499)

Author: duckbrain

cmd/app/client.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"net/http"
+	"net/url"
 
 	"github.com/harrisoncramer/gitlab.nvim/cmd/app/git"
 	"github.com/hashicorp/go-retryablehttp"
@@ -66,6 +67,14 @@ func NewClient() (*Client, error) {
 		},
 	}
 
+	if proxy := pluginOptions.ConnectionSettings.Proxy; proxy != "" {
+		u, err := url.Parse(proxy)
+		if err != nil {
+			return nil, fmt.Errorf("parse proxy url: %w", err)
+		}
+		tr.Proxy = http.ProxyURL(u)
+	}
+
 	retryClient := retryablehttp.NewClient()
 	retryClient.HTTPClient.Transport = tr
 	gitlabOptions = append(gitlabOptions, gitlab.WithHTTPClient(retryClient.HTTPClient))
@@ -99,11 +108,11 @@ func InitProjectSettings(c *Client, gitInfo git.GitData) (*ProjectInfo, error) {
 	project, _, err := c.GetProject(gitInfo.ProjectPath(), &opt)
 
 	if err != nil {
-		return nil, fmt.Errorf(fmt.Sprintf("Error getting project at %s", gitInfo.RemoteUrl), err)
+		return nil, fmt.Errorf("error getting project at %s: %w", gitInfo.RemoteUrl, err)
 	}
 
 	if project == nil {
-		return nil, fmt.Errorf(fmt.Sprintf("Could not find project at %s", gitInfo.RemoteUrl), err)
+		return nil, fmt.Errorf("could not find project at %s", gitInfo.RemoteUrl)
 	}
 
 	projectId := fmt.Sprint(project.ID)

cmd/app/config.go

@@ -13,6 +13,7 @@ type PluginOptions struct {
 	} `json:"debug"`
 	ChosenMrIID        int `json:"chosen_mr_iid"`
 	ConnectionSettings struct {
+		Proxy    string `json:"proxy"`
 		Insecure bool   `json:"insecure"`
 		Remote   string `json:"remote"`
 	} `json:"connection_settings"`

doc/gitlab.nvim.txt

@@ -161,6 +161,7 @@ you call this function with no values the defaults will be used:
         },
       },
       connection_settings = {
+        proxy = "", -- Configure a proxy URL to use when connecting to GitLab. Supports URL schemes: http, https, socks5
         insecure = false, -- Like curl's --insecure option, ignore bad x509 certificates on connection
         remote = "origin", -- The default remote that your MRs target
       },

lua/gitlab/state.lua

@@ -62,6 +62,7 @@ M.settings = {
     },
   },
   connection_settings = {
+    proxy = "",
     insecure = false,
     remote = "origin",
   },