treat %setup -T as a separate use case

%setup -T means that rpm should not unpack source0 - if we turn %setup
into %autosetup thus getting a git repo after running it, we'll get an
empty git repo - bad. These cases usually unpack/construct the source
tree in %prep in a custom way. It would result into first patch
containing the whole source tree - we don't want that.

With this change, we'll create the git repo before applying first patch
which should match the initial source tree.

I hope it's clear we are getting into depths of odd packaging

Related packit#85

Signed-off-by: Tomas Tomecek <[email protected]>

dist2src/core.py

@@ -283,7 +283,9 @@ def _enforce_autosetup(self):
               `%autosetup -a -a` doesn't work https://bugzilla.redhat.com/show_bug.cgi?id=1881840
            b) %setup + pushd/cd - we cannot recreate those patches correctly since
               they are not applied from root #92
-           c) no bullshit, just plain %setup and %patch -- in any case, we turn
+           c) %setup -T - do not unpack SOURCE0: in this case we don't want %autosetup b/c
+              it would be empty, we need to rely on %patch
+           d) no bullshit, just plain %setup and %patch -- in any case, we turn
               %setup into %autosetup -N to be sure the .git repo is created correctly
               unless `-a -a` is used
         """
@@ -294,6 +296,8 @@ def _enforce_autosetup(self):
             return
 
         a_a_regex = re.compile(r"-a")
+        # -T means to not unpack, it can actually be set e.g. like "-cT"
+        cap_t_regex = re.compile(r"-[a-zA-Z]*T")
         for i, line in enumerate(prep_lines):
             if line.startswith(("%autosetup", "%autopatch")):
                 logger.info("This package uses %autosetup or %autopatch.")
@@ -305,6 +309,11 @@ def _enforce_autosetup(self):
                         "`%setup -aN -aM` detected, we cannot turn it to %autosetup"
                     )
                     continue
+                if cap_t_regex.findall(line):
+                    logger.info(
+                        "`%setup -T` detected - no %autosetup, we need to rely on %patch"
+                    )
+                    continue
                 # %setup -> %autosetup -N
                 prep_lines[i] = line.replace("%setup", "%autosetup -N")
                 # %autosetup does not accept -q, remove it

tests/conftest.py

@@ -49,6 +49,7 @@
         "unbound",
         "c8",
     ),  # again, another level of directories and patches applied in a subdir
+    ("hyperv-daemons", "c8"),  # no archive, source files are %SOURCEXXX
 ]
 
 # these packages only have a single commit in the respective dist-git branch