From 4c459c4bf478d92c604d3543a836528680e50f63 Mon Sep 17 00:00:00 2001
From: "Brian C. Lane" <bcl@redhat.com>
Date: Mon, 20 Nov 2017 16:50:07 -0800
Subject: [PATCH] Add /projects/depsolve route

---
 src/pylorax/api/projects.py | 20 +++++++++++++++++++-
 src/pylorax/api/v0.py       | 11 ++++++++++-
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/src/pylorax/api/projects.py b/src/pylorax/api/projects.py
index 42806096..a9a775b7 100644
--- a/src/pylorax/api/projects.py
+++ b/src/pylorax/api/projects.py
@@ -73,6 +73,15 @@ def yaps_to_project_info(yaps):
             "builds":       [build]}
 
 
+def tm_to_dep(tm):
+    """Extract the info from a TransactionMember object"""
+    return {"name":     tm.name,
+            "epoch":    tm.epoch,
+            "version":  tm.version,
+            "release":  tm.release,
+            "arch":     tm.arch}
+
+
 def projects_list(yb):
     """Return a list of projects
 
@@ -113,7 +122,16 @@ def projects_depsolve(yb, project_names):
     :returns: ...
     :rtype: ...
     """
-    pass
+    # TODO - Catch yum tracebacks here
+
+    # This resets the transaction
+    yb.closeRpmDB()
+    for p in project_names:
+        yb.install(pattern=p)
+    (rc, msg) = yb.buildTransaction()
+    # If rc isn't 2 something went wrong, raise and error
+    yb.tsInfo.makelists()
+    return sorted(map(tm_to_dep, yb.tsInfo.installed + yb.tsInfo.depinstalled), key=lambda p: p["name"].lower())
 
 
 def modules_list(yb):
diff --git a/src/pylorax/api/v0.py b/src/pylorax/api/v0.py
index c5a9bec5..7f05adea 100644
--- a/src/pylorax/api/v0.py
+++ b/src/pylorax/api/v0.py
@@ -24,7 +24,7 @@ from pykickstart.parser import KickstartParser
 from pykickstart.version import makeVersion, RHEL7
 
 from pylorax.api.crossdomain import crossdomain
-from pylorax.api.projects import projects_list, projects_info
+from pylorax.api.projects import projects_list, projects_info, projects_depsolve
 from pylorax.api.recipes import list_branch_files, read_recipe_commit, recipe_filename, list_commits
 from pylorax.api.recipes import recipe_from_dict, recipe_from_toml, commit_recipe, delete_recipe, revert_recipe
 from pylorax.api.recipes import tag_recipe_commit, recipe_diff
@@ -305,3 +305,12 @@ def v0_api(api):
             projects = projects_info(api.config["YUMLOCK"].yb, project_names.split(","))
 
         return jsonify(projects=projects)
+
+    @api.route("/api/v0/projects/depsolve/<project_names>")
+    @crossdomain(origin="*")
+    def v0_projects_depsolve(project_names):
+        """Return detailed information about the listed projects"""
+        with api.config["YUMLOCK"].lock:
+            deps = projects_depsolve(api.config["YUMLOCK"].yb, project_names.split(","))
+
+        return jsonify(projects=deps)