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Allow overriding nix-ros-overlay version

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This commit is contained in:
Michal Sojka 2024-09-22 10:58:27 +02:00
parent c6b1a2c507
commit 8ca5a871ff
2 changed files with 40 additions and 9 deletions
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40
ros2nix/ros2nix.py
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@ -111,17 +111,37 @@ ros_distro_overlays_def = dedent(
).strip()
def flakeref_to_expr(flakeref) -> str:
match flakeref[0]:
case '.' | '/':
expr = flakeref
case _:
match re.match("(?P<type>.*?):(?P<owner>.*?)/(?P<repo>.*?)(?:/(?P<ref>.*))?$", flakeref):
case None:
raise Exception(f'Unsupported flakeref: "{flakeref}"')
case parts:
match parts.groups():
case ('github', owner, repo, None):
expr = f'builtins.fetchTarball "https://github.com/{owner}/{repo}/archive/HEAD.tar.gz"'
case ('github', owner, repo, branch):
expr = f'builtins.fetchTarball "https://github.com/{owner}/{repo}/archive/{branch}.tar.gz"'
case _:
raise Exception(f'Unsupported flakeref: "{flakeref}"')
return expr
def generate_default(args):
nix_ros_overlay = flakeref_to_expr(args.nix_ros_overlay)
with file_writer(f'{args.output_dir or "."}/default.nix', args.compare) as f:
f.write('''{
nix-ros-overlay ? builtins.fetchTarball "https://github.com/lopsided98/nix-ros-overlay/archive/master.tar.gz",
}:
f.write(f'''{{
nix-ros-overlay ? {nix_ros_overlay},
}}:
let
''' + indent(ros_distro_overlays_def, " ") + '''
{indent(ros_distro_overlays_def, " ")}
in
import nix-ros-overlay {
import nix-ros-overlay {{
overlays = [ rosDistroOverlays ];
}
}}
''')
@ -130,7 +150,7 @@ def generate_flake(args):
f.write('''
{
inputs = {
nix-ros-overlay.url = "github:lopsided98/nix-ros-overlay/master";
nix-ros-overlay.url = "''' + args.nix_ros_overlay + '''";
nixpkgs.follows = "nix-ros-overlay/nixpkgs"; # IMPORTANT!!!
};
outputs = { self, nix-ros-overlay, nixpkgs }:
@ -266,6 +286,12 @@ def ros2nix(args):
default=True,
help="Generate overlay.nix",
)
parser.add_argument(
"--nix-ros-overlay",
metavar="FLAKEREF",
default="github:lopsided98/nix-ros-overlay/master",
help="Flake reference of nix-ros-overlay. You may want to change the branch from master to develop or use your own fork.",
)
parser.add_argument(
"--nixfmt",
action="store_true",