feat: add support for trace with ldd (#9)

* feat: add support for trace with ldd
* dev: bump black version requirements
* remove centos

Signed-off-by: vsoch <[email protected]>

---------

Signed-off-by: vsoch <[email protected]>
Co-authored-by: vsoch <[email protected]>

Author: vsoch

.github/dev-requirements.txt

@@ -1,4 +1,4 @@
 pre-commit
-black==23.3.0
+black==25.1.0
 isort
 flake8

.github/workflows/generate.yaml

@@ -24,20 +24,20 @@ jobs:
       - name: Test Basic Guts
         uses: ./action/manifest
         with:
-          image: centos
+          image: ubuntu
 
       - name: Filesystem Include
         uses: ./action/manifest
         with:
-          image: centos
+          image: ubuntu
           include: fs
 
   generate-recipes:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        image: ["ubuntu", "centos", "rockylinux:9.0", "alpine", "busybox"]
+        image: ["ubuntu", "rockylinux:9.0", "alpine", "busybox"]
 
     name: Generate Matrix
     steps:

container_guts/main/client.py

@@ -109,6 +109,39 @@ def run(self, image, includes=None):
         shutil.rmtree(tmpdir, ignore_errors=True)
         return {image.uri: self.manifests[image.uri]}
 
+    @ensure_container
+    def trace(self, image, paths, cleanup=True):
+        """
+        Find and trace a binary in the container
+
+        Paths must be provided, either the full path or a basename.
+        """
+        print(f"Looking for {len(paths)} path(s) in image")
+        tmpdir = self.container.export(image, cleanup=False)
+
+        # Results will be lookup with binary path and links
+        results = {}
+        for path in paths:
+
+            # We rely on the user to provide something on the path OR a fullpath
+            links = self.container.execute(image, ["ldd", path])
+            if links["return_code"] != 0:
+                print(links["message"])
+                return
+            links = [
+                x.replace("\t", "") for x in links["message"].split("\n") if x.strip()
+            ]
+            results[path] = [
+                x.split("(")[0].split("=> ")[-1] for x in links if "=>" in x
+            ]
+
+        if cleanup:
+            self.container.cleanup(image)
+
+        # Assume that something that isn't linked won't be mapped
+        shutil.rmtree(tmpdir, ignore_errors=True)
+        return results
+
     @ensure_container
     def get_environment_paths(self, image):
         """

container_guts/version.py

@@ -2,7 +2,7 @@
 __copyright__ = "Copyright 2021-2024, Vanessa Sochat"
 __license__ = "MPL 2.0"
 
-__version__ = "0.0.16"
+__version__ = "0.0.17"
 AUTHOR = "Vanessa Sochat"
 NAME = "container-guts"
 EMAIL = "[email protected]"