o PartDB: don't die if the directory exist *and* is empty. Ninja creates

  empty parent directories.
o PartDB: escape some path names.
o new comamnd: "ninja". Generates a build.ninja from a sch. Not done!

1 files changed, 80 insertions, 0 deletions

diff --git a/src/ee/tools/ninja.py b/src/ee/tools/ninja.py
new file mode 100644
index 0000000..cc090a0
--- /dev/null
+++ b/src/ee/tools/ninja.py
@@ -0,0 +1,80 @@
+import argparse
+import sys
+from pathlib import Path
+from typing import List, Union, Optional
+
+from jinja2 import Environment, PackageLoader, select_autoescape
+
+from ee.kicad import read_schematics
+
+
+def ninja_path_filter(s: Union[str, List[str]]) -> str:
+    if isinstance(s, str):
+        return s. \
+            replace("$", "$$"). \
+            replace(" ", "$ ")
+    elif isinstance(s, list):
+
+        if len(s) == 1:
+            return ninja_path_filter(s[0])
+
+        return "$\n" + " $\n".join(["  " + ninja_path_filter(path) for path in s])
+    else:
+        raise Exception("Unsupported argument type: {}".format(type(s)))
+
+
+def parent_dir_filter(s: str) -> str:
+    return str(Path(s).parent)
+
+
+def generate(sch_path: Path, kicad_bom_strategy: Optional[str]):
+    def _create_env():
+        e = Environment(
+            loader=PackageLoader(__name__, "templates"),
+            autoescape=select_autoescape(["html", "xml"]),
+            keep_trailing_newline=True,
+        )
+        e.filters["ninja_path"] = ninja_path_filter
+        e.filters["parent_dir"] = parent_dir_filter
+        return e
+
+    gerber_zip = "prod/gerber.zip"
+
+    sch = read_schematics(str(sch_path))
+
+    sch_files = sorted([s.path for s in sch.schematics])
+
+    params = {}
+    import os.path
+    params["ee"] = "{} -m ee".format(os.path.relpath(sys.executable, Path(".")))
+    params["sch"] = sch_path
+    params["sch_files"] = sch_files
+
+    params["kicad_bom_strategy"] = kicad_bom_strategy
+
+    params["pcb"] = str(sch_path).replace(".sch", ".kicad_pcb")
+
+    if gerber_zip is not None:
+        params["gerber_zip"] = gerber_zip
+
+    build_ninja = Path("build.ninja")
+
+    with build_ninja.open("w") as f:
+        env = _create_env()
+        template = env.get_template("build.ninja.j2")
+        f.write(template.render(**params))
+
+
+parser = argparse.ArgumentParser()
+
+parser.add_argument("--sch",
+                    required=True,
+                    metavar="FILE")
+
+parser.add_argument("--kicad-bom-strategy",
+                    required=False,
+                    metavar="PY CALLABLE")
+
+args = parser.parse_args()
+
+generate(args.sch, args.kicad_bom_strategy)