0018-misc-Create-fetch-dir-if-not-existing.patch

From: Oliver Reiche <oliver.reiche@gmail.com>
Date: Sun, 18 Feb 2024 19:19:01 +0100
Subject: [misc] Create fetch dir if not existing

---
 share/man/must.1.md               |  5 ++---
 src/other_tools/just_mr/fetch.cpp | 20 +++++++++-----------
 2 files changed, 11 insertions(+), 14 deletions(-)

diff --git a/share/man/must.1.md b/share/man/must.1.md
--- a/share/man/must.1.md
+++ b/share/man/must.1.md
@@ -270,9 +270,8 @@ from the configuration is used. To perform the fetch for all
 repositories from the input configuration file, use the **`--all`**
 flag.
 
-By default the first existing distribution directory is used as the
-output directory for writing the fetched archives on disk. If no
-existing distribution directory can be found an error is produced. To
+By default the first distribution directory is used as the
+output directory for writing the fetched archives on disk. To
 define an output directory that is independent of the given distribution
 directories, use the **`-o`** option.
 
diff --git a/src/other_tools/just_mr/fetch.cpp b/src/other_tools/just_mr/fetch.cpp
--- a/src/other_tools/just_mr/fetch.cpp
+++ b/src/other_tools/just_mr/fetch.cpp
@@ -70,19 +70,17 @@ auto MultiRepoFetch(std::shared_ptr<Configuration> const& config,
     // find fetch dir
     auto fetch_dir = fetch_args.fetch_dir;
     if (not fetch_dir) {
-        for (auto const& d : common_args.just_mr_paths->distdirs) {
-            if (FileSystemManager::IsDirectory(d)) {
-                fetch_dir = std::filesystem::weakly_canonical(
-                    std::filesystem::absolute(d));
-                break;
-            }
+        if (common_args.just_mr_paths->distdirs.empty()) {
+            Logger::Log(LogLevel::Error,
+                        "No fetch or distribution directory specified");
+            return kExitFetchError;
         }
+        fetch_dir = common_args.just_mr_paths->distdirs.front();
     }
-    if (not fetch_dir) {
-        auto considered = nlohmann::json(common_args.just_mr_paths->distdirs);
-        Logger::Log(LogLevel::Error,
-                    "No directory found to fetch to, considered {}",
-                    considered.dump());
+    if (not FileSystemManager::IsDirectory(*fetch_dir) and
+        not FileSystemManager::CreateDirectory(*fetch_dir)) {
+        Logger::Log(
+            LogLevel::Error, "Cannot create directory {}", fetch_dir->string());
         return kExitFetchError;
     }
 
--