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Add one-click dependency installer with uv #24

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Merged
giswqs merged 1 commit into from
Feb 27, 2026
Merged

Add one-click dependency installer with uv #24

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38 changes: 34 additions & 4 deletions _samgeo_lib.py
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,33 @@
_CACHED: Optional[ModuleType] = None


def _ensure_venv_on_path() -> bool:
"""Attempt to add the managed venv site-packages to sys.path.

Returns:
True if venv site-packages was added or already present.
"""
try:
from .core.venv_manager import ensure_venv_packages_available, get_venv_status

is_ready, _ = get_venv_status()
if is_ready:
return ensure_venv_packages_available()
except ImportError:
try:
from core.venv_manager import (
ensure_venv_packages_available,
get_venv_status,
)

is_ready, _ = get_venv_status()
if is_ready:
return ensure_venv_packages_available()
except ImportError:
pass
return False


def _is_module_from_dir(mod: ModuleType, directory: Path) -> bool:
try:
mod_file = getattr(mod, "__file__", None)
Expand Down Expand Up @@ -110,6 +137,9 @@ def get_samgeo() -> ModuleType:
if _CACHED is not None:
return _CACHED

# Try to ensure managed venv packages are available
_ensure_venv_on_path()

plugin_dir = Path(__file__).resolve().parent

# Normal import first (works when plugin package isn't named `samgeo`)
Expand All @@ -136,11 +166,11 @@ def get_samgeo() -> ModuleType:
py = getattr(sys, "executable", "python")
ver = f"{sys.version_info.major}.{sys.version_info.minor}.{sys.version_info.micro}"
raise ImportError(
"SamGeo plugin could not import the external 'samgeo' library because the plugin "
"package name shadows it.\n\n"
"SamGeo plugin could not import the external 'samgeo' library.\n\n"
"Please use the 'Install Dependencies' button in the SamGeo panel\n"
"to install all required packages automatically.\n\n"
f"QGIS Python:\n executable: {py}\n version: {ver}\n\n"
"Fix: install the SamGeo Python package into *this same Python environment*.\n"
"In QGIS, open Python Console and run:\n"
"Alternatively, install manually in QGIS Python Console:\n"
" import sys, subprocess\n"
" subprocess.check_call([sys.executable, '-m', 'pip', 'install', '--user', 'samgeo'])\n"
)
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