From 64da82c661b2a28c7a258bd30c0084633d0e1896 Mon Sep 17 00:00:00 2001
From: Justin Wernick <justin@worthe-it.co.za>
Date: Fri, 11 Aug 2023 22:04:19 +0200
Subject: Create group directories if they don't already exist

- With the correct ownership
- With the correct permissions

Fix #5
---
 src/git.rs | 53 +++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 39 insertions(+), 14 deletions(-)

(limited to 'src/git.rs')

diff --git a/src/git.rs b/src/git.rs
index 9fa3e78..ea55f2c 100644
--- a/src/git.rs
+++ b/src/git.rs
@@ -1,11 +1,12 @@
 use crate::{
     parser::{GitReceivePackArgs, GitUploadPackArgs},
-    user_info::{get_user_groups, get_username},
+    user_info::{get_gid, get_user_groups, get_username},
     ShackleError,
 };
 use git2::{ErrorCode, Repository, RepositoryInitMode, RepositoryInitOptions};
 use std::{
     fs,
+    os::unix::fs::PermissionsExt,
     path::{Path, PathBuf},
     process::Command,
 };
@@ -75,24 +76,48 @@ pub fn init(
     description: &Option<String>,
     branch: &str,
 ) -> Result<GitInitResult, ShackleError> {
+    if let Some(group) = &group {
+        if !verify_user_is_in_group(group) {
+            return Err(ShackleError::InvalidGroup);
+        }
+    }
+
+    let git_prefix = git_dir_prefix();
+    let collection_dir = match group {
+        Some(group) => group_git_dir(group),
+        None => personal_git_dir()?,
+    };
+    let path = collection_dir.join(repo_name).with_extension("git");
+
+    if !git_prefix.is_dir() {
+        fs::create_dir(&git_prefix)?;
+    }
+
+    if !collection_dir.is_dir() {
+        fs::create_dir(&collection_dir)?;
+
+        if let Some(group) = group {
+            let gid = get_gid(&group).expect("User is in group but no group ID?");
+            nix::unistd::chown(&collection_dir, None, Some(gid))?;
+        }
+
+        let mut perms = collection_dir.metadata()?.permissions();
+        perms.set_mode(match group {
+            Some(_) => 0o2770,
+            None => 0o700,
+        });
+        fs::set_permissions(&collection_dir, perms)?;
+    }
+
     let mut init_opts = RepositoryInitOptions::new();
     init_opts
         .bare(true)
-        .mkdir(true)
+        .mkdir(false)
         .no_reinit(true)
         .initial_head(branch);
-
-    let path = match group {
-        Some(group) => {
-            if !verify_user_is_in_group(group) {
-                return Err(ShackleError::InvalidGroup);
-            }
-
-            init_opts.mode(RepositoryInitMode::SHARED_GROUP);
-            group_git_dir(group).join(repo_name).with_extension("git")
-        }
-        None => personal_git_dir()?.join(repo_name).with_extension("git"),
-    };
+    if group.is_some() {
+        init_opts.mode(RepositoryInitMode::SHARED_GROUP);
+    }
 
     Repository::init_opts(&path, &init_opts)?;
     if let Some(description) = description {
-- 
cgit v1.2.3