Problems explorations for libmambapy

mamba_solver_problems_exploration.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "6804a4e2",
   "metadata": {},
   "outputs": [],
   "source": [
    "import libmambapy\n",
    "from mamba.utils import load_channels\n",
    "\n",
    "libmambapy.PackageInfo.__str__ = lambda self: self.name + \"-\" + self.version + \"-\" + self.build_string"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "b1118a5b",
   "metadata": {},
   "outputs": [],
   "source": [
    "pool = libmambapy.Pool()\n",
    "repos = []\n",
    "\n",
    "# change this to point where you cloned mamba\n",
    "\n",
    "channels = [\n",
    "    \"file:///Users/wolfvollprecht/Programs/mamba/mamba/tests/channel_a\"\n",
    "]\n",
    "\n",
    "subdirs = load_channels(pool, channels, repos, prepend=False, platform=\"linux-64\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "b753bd4f",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[(<libmambapy.bindings.SubdirData at 0x106b54930>,\n",
       "  {'platform': 'linux-64',\n",
       "   'url': 'file:///Users/wolfvollprecht/Programs/mamba/mamba/tests/channel_a/linux-64',\n",
       "   'channel': channel_a[linux-64,noarch]}),\n",
       " (<libmambapy.bindings.SubdirData at 0x106b4e1b0>,\n",
       "  {'platform': 'noarch',\n",
       "   'url': 'file:///Users/wolfvollprecht/Programs/mamba/mamba/tests/channel_a/noarch',\n",
       "   'channel': channel_a[linux-64,noarch]})]"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "subdirs"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "0689068c",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "False\n"
     ]
    }
   ],
   "source": [
    "specs = [\n",
    "    \"A=0.1.0\", \"A=0.2.0\"\n",
    "]\n",
    "\n",
    "solver_options = [(libmambapy.SOLVER_FLAG_ALLOW_DOWNGRADE, 1)]\n",
    "solver = libmambapy.Solver(pool, solver_options)\n",
    "\n",
    "solver.add_jobs(specs, libmambapy.SOLVER_INSTALL)\n",
    "success = solver.solve()\n",
    "print(success)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "fc0bf159",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[<libmambapy.bindings.SolverProblem object at 0x106b820b0>, <libmambapy.bindings.SolverProblem object at 0x106b82470>, <libmambapy.bindings.SolverProblem object at 0x106b827b0>]\n"
     ]
    }
   ],
   "source": [
    "problems = solver.all_problems_structured()\n",
    "print(problems)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "0fc80384",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "SolverRuleinfo.SOLVER_RULE_PKG_SAME_NAME : 3 ➔ 0 ➔ 2\n",
      "          SolverRuleinfo.SOLVER_RULE_JOB : 2 ➔ -2147483641 ➔ 259\n",
      "          SolverRuleinfo.SOLVER_RULE_JOB : 0 ➔ -2147483642 ➔ 259\n"
     ]
    }
   ],
   "source": [
    "for p in problems:\n",
    "    print(\"{_type:>40} : {source} ➔ {dep} ➔ {target}\".format(\n",
    "        _type=str(p.type),\n",
    "        source=str(p.source_id),\n",
    "        dep=p.dep_id,\n",
    "        target=str(p.target_id)\n",
    "    ))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "8b818ae4",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "SolverRuleinfo.SOLVER_RULE_PKG_SAME_NAME : a-0.2.0-abc ➔ None ➔ a-0.1.0-abc\n",
      "          SolverRuleinfo.SOLVER_RULE_JOB : a-0.1.0-abc ➔ a 0.2.0** ➔ None\n",
      "          SolverRuleinfo.SOLVER_RULE_JOB : None ➔ a 0.1.0** ➔ None\n"
     ]
    }
   ],
   "source": [
    "for p in problems:\n",
    "    print(\"{_type:>40} : {source} ➔ {dep} ➔ {target}\".format(\n",
    "        _type=str(p.type),\n",
    "        source=str(p.source()),\n",
    "        dep=p.dep(),\n",
    "        target=str(p.target())\n",
    "    ))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "396954d6",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "SolverRuleinfo.SOLVER_RULE_PKG_SAME_NAME : cannot install both a-0.2.0-abc and a-0.1.0-abc\n",
      "          SolverRuleinfo.SOLVER_RULE_JOB : conflicting requests\n",
      "          SolverRuleinfo.SOLVER_RULE_JOB : conflicting requests\n"
     ]
    }
   ],
   "source": [
    "for p in problems:\n",
    "    print(\"{_type:>40} : {problemstr}\".format(\n",
    "        _type=str(p.type),\n",
    "        problemstr=str(p),\n",
    "    ))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "2083ad45",
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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Solver problems exploration – conda-forge.ipynb

Solver problems package creation.ipynb