From eed8984b07e68b64a1a1a74c31a0acba8c427932 Mon Sep 17 00:00:00 2001
From: Eric Curtin <ecurtin@redhat.com>
Date: Wed, 29 Jan 2025 09:59:37 +0000
Subject: [PATCH] Parse https://ollama.com/library/ syntax

People search for ollama models using the web ui, this change
allows one to copy the url from the browser and for it to be
compatible with ramalama run.

Signed-off-by: Eric Curtin <ecurtin@redhat.com>
---
 ramalama/cli.py         |  2 +-
 ramalama/huggingface.py |  7 +++----
 ramalama/model.py       |  9 +++++++++
 ramalama/oci.py         | 16 ++++------------
 ramalama/ollama.py      |  6 ++++--
 ramalama/url.py         | 12 ++++--------
 6 files changed, 25 insertions(+), 27 deletions(-)

diff --git a/ramalama/cli.py b/ramalama/cli.py
index e551a5a3..aae46a8e 100644
--- a/ramalama/cli.py
+++ b/ramalama/cli.py
@@ -967,7 +967,7 @@ def rm_cli(args):
 def New(model, args):
     if model.startswith("huggingface://") or model.startswith("hf://") or model.startswith("hf.co/"):
         return Huggingface(model)
-    if model.startswith("ollama"):
+    if model.startswith("ollama") or "ollama.com/library/" in model:
         return Ollama(model)
     if model.startswith("oci://") or model.startswith("docker://"):
         return OCI(model, args.engine)
diff --git a/ramalama/huggingface.py b/ramalama/huggingface.py
index 675c76f4..b8eff02b 100644
--- a/ramalama/huggingface.py
+++ b/ramalama/huggingface.py
@@ -2,7 +2,7 @@
 import pathlib
 import urllib.request
 from ramalama.common import available, run_cmd, exec_cmd, download_file, verify_checksum, perror
-from ramalama.model import Model
+from ramalama.model import Model, rm_until_substring
 
 missing_huggingface = """
 Optional: Huggingface models require the huggingface-cli module.
@@ -33,9 +33,8 @@ def fetch_checksum_from_api(url):
 
 class Huggingface(Model):
     def __init__(self, model):
-        model = model.removeprefix("huggingface://")
-        model = model.removeprefix("hf://")
-        model = model.removeprefix("hf.co/")
+        model = rm_until_substring(model, "hf.co/")
+        model = rm_until_substring(model, "://")
         super().__init__(model)
         self.type = "huggingface"
         split = self.model.rsplit("/", 1)
diff --git a/ramalama/model.py b/ramalama/model.py
index 94889238..cd714b4b 100644
--- a/ramalama/model.py
+++ b/ramalama/model.py
@@ -486,3 +486,12 @@ def distinfo_volume():
         return ""
 
     return f"-v{path}:/usr/share/ramalama/{dist_info}:ro"
+
+
+def rm_until_substring(model, substring):
+    pos = model.find(substring)
+    if pos == -1:
+        return model
+
+    # Create a new string starting after the found substring
+    return ''.join(model[i] for i in range(pos + len(substring), len(model)))
diff --git a/ramalama/oci.py b/ramalama/oci.py
index 096b1062..1280c306 100644
--- a/ramalama/oci.py
+++ b/ramalama/oci.py
@@ -4,14 +4,8 @@
 import tempfile
 
 import ramalama.annotations as annotations
-from ramalama.model import Model, MODEL_TYPES
-from ramalama.common import (
-    engine_version,
-    exec_cmd,
-    MNT_FILE,
-    perror,
-    run_cmd,
-)
+from ramalama.model import Model, rm_until_substring
+from ramalama.common import engine_version, exec_cmd, MNT_FILE, perror, run_cmd
 
 prefix = "oci://"
 
@@ -103,10 +97,8 @@ def list_models(args):
 
 class OCI(Model):
     def __init__(self, model, conman):
-        super().__init__(model.removeprefix(prefix).removeprefix("docker://"))
-        for t in MODEL_TYPES:
-            if self.model.startswith(t + "://"):
-                raise ValueError(f"{model} invalid: Only OCI Model types supported")
+        model = rm_until_substring(model, "://")
+        super().__init__(model)
         self.type = "OCI"
         self.conman = conman
 
diff --git a/ramalama/ollama.py b/ramalama/ollama.py
index 4432cb4d..e2435124 100644
--- a/ramalama/ollama.py
+++ b/ramalama/ollama.py
@@ -2,7 +2,7 @@
 import urllib.request
 import json
 from ramalama.common import run_cmd, verify_checksum, download_file
-from ramalama.model import Model
+from ramalama.model import Model, rm_until_substring
 
 
 def fetch_manifest_data(registry_head, model_tag, accept):
@@ -60,7 +60,9 @@ def init_pull(repos, accept, registry_head, model_name, model_tag, models, model
 
 class Ollama(Model):
     def __init__(self, model):
-        super().__init__(model.removeprefix("ollama://"))
+        model = rm_until_substring(model, "ollama.com/library/")
+        model = rm_until_substring(model, "://")
+        super().__init__(model)
         self.type = "Ollama"
 
     def _local(self, args):
diff --git a/ramalama/url.py b/ramalama/url.py
index 8e11dfe4..119c0825 100644
--- a/ramalama/url.py
+++ b/ramalama/url.py
@@ -1,17 +1,13 @@
 import os
 from ramalama.common import download_file
-from ramalama.model import Model
+from ramalama.model import Model, rm_until_substring
+from urllib.parse import urlparse
 
 
 class URL(Model):
     def __init__(self, model):
-        self.type = ""
-        for prefix in ["file", "http", "https"]:
-            if model.startswith(f"{prefix}://"):
-                self.type = prefix
-                model = model.removeprefix(f"{prefix}://")
-                break
-
+        self.type = urlparse(model).scheme
+        model = rm_until_substring(model, "://")
         super().__init__(model)
         split = self.model.rsplit("/", 1)
         self.directory = split[0].removeprefix("/") if len(split) > 1 else ""