Implement auto-migrate (aka fmt)

projects/cram/src/python/cram/__main__.py

@@ -6,6 +6,7 @@ import os
 from pathlib import Path
 import pickle
 from typing import List
+import sys
 
 from . import (
     __author__,
@@ -17,6 +18,7 @@ from .v0 import PackageV0, ProfileV0
 from .v1 import PackageV1, ProfileV1
 
 import click
+import toml
 from toposort import toposort_flatten
 from vfs import Vfs
 
@@ -294,12 +296,28 @@ def do_state(confdir, state_file):
         print(*e)
 
 
-@cli.command("migrate-to-toml")
+@cli.command("fmt")
 @click.argument("confdir", type=Path)
 @click.argument("requirement", type=str)
-def do_migrate(confdig, requirement):
+def do_migrate(confdir, requirement):
     """Convert from the 0.0.0 config format to the 0.1.0 TOML format"""
+    root = confdir.resolve()
 
+    if not root.is_dir():
+        log.fatal(f"{confdir} does not exist!")
+        _exit(1)
+
+    packages = load_packages(root)
+    pkg = packages[requirement]
+    json = pkg.json()
+
+    for suffix in pkg.SPECIAL_FILES:
+        f = (root / requirement / suffix)
+        if f.exists():
+            f.unlink()
+
+    with open(root / requirement / "pkg.toml", "w") as fp:
+        toml.dump(json, fp)
 
 if __name__ == "__main__" or 1:
     logging.basicConfig(

projects/cram/src/python/cram/v0.py

@@ -52,6 +52,34 @@ class PackageV0(Package):
         if postf.exists():
             fs.exec(self.root, sh([str(postf)]))
 
+    def _read(self, p: Path):
+        if p.exists():
+            with open(p) as fp:
+                return fp.read()
+        else:
+            return None
+
+    def json(self):
+        buildt = self._read(self.root / "BUILD")
+        pret = self._read(self.root / "PRE_INSTALL")
+        installt = self._read(self.root / "INSTALL")
+        postt = self._read(self.root / "POST_INSTALL")
+
+        o = {"cram": {"version": 1}, "package": {"require": []}}
+
+        if buildt:
+            o["package"]["build"] = [{"run": buildt}]
+        if pret:
+            o["package"]["pre_install"] = [{"run": pret}]
+        if installt:
+            o["package"]["install"] = [{"run": installt}]
+        if postt:
+            o["package"]["install"] = [{"run": postt}]
+
+        o["package"]["require"] = [{"name": it} for it in sorted(self.requires())]
+
+        return o
+
 
 class ProfileV0(PackageV0):
     def requires(self):

projects/cram/src/python/cram/v1.py

@@ -39,8 +39,14 @@ class PackageV1(Package):
     def requires(self):
         """Get the dependencies of this package."""
 
-        return self.config().get("package", {}).get("requires") or [
-            it["name"] for it in self.config().get("package", {}).get("require", [])
+        def _name(it):
+            if isinstance(it, str):
+                return it
+            elif isinstance(it, dict):
+                return it["name"]
+
+        return [
+            _name(it) for it in self.config().get("package", {}).get("require", [])
         ]
 
     def do_sh_or_script(self, content: Optional[Union[List[str], str]], fs: Vfs, dest: Path, cwd: Path = "/tmp"):
@@ -48,10 +54,11 @@ class PackageV1(Package):
             pass
 
         elif isinstance(content, list):
-            return any(self.do_sh_or_script(c, fs, dest) for c in content)
+            for c in content:
+                self.do_sh_or_script(c, fs, dest)
 
         elif isinstance(content, dict):
-            return self.do_sh_or_script(
+            self.do_sh_or_script(
                 content["run"],
                 fs,
                 dest,
@@ -66,14 +73,13 @@ class PackageV1(Package):
             installf = self.root / content
             if installf.exists():
                 with open(installf, "r") as fp:
-                    return self.do_sh_or_script(fp.read(), fs, dest)
+                    self.do_sh_or_script(fp.read(), fs, dest)
 
             elif content:
                 f = tempf(f"{sum}.sh")
                 with open(f, "w") as fp:
                     fp.write(content)
                     fs.exec(cwd, sh([f]))
-                    return True
 
     def do_build(self, fs: Vfs, dest: Path):
         self.do_sh_or_script(self.config().get("package", {}).get("build"), fs, dest)
@@ -89,6 +95,10 @@ class PackageV1(Package):
         self.do_sh_or_script(self.config().get("package", {}).get("post_install"), fs, dest)
 
 
+    def json(self):
+        return self.config()
+
+
 class ProfileV1(PackageV1):
     """Unline packages, profiles don't support recursive stow of contents."""