talexander/machine_setup
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Support recursive.

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This commit is contained in:
Tom Alexander 2025-08-09 22:28:24 -04:00
parent 6db8e01309
commit 2b485f7f1d
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GPG Key ID: D3A179C9A53C0EDE
2 changed files with 115 additions and 22 deletions
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5
nix/configuration/configuration.nix
View File

@ -80,8 +80,9 @@
# me.install.user.file.talexander.".local/nixcfg" = ./README.org;
me.install.user.talexander.file.".local/nixcfg" = {
source = ./flake.lock;
# method = "overwrite";
source = ./roles;
recursive = true;
method = "overwrite";
};
nix.settings.experimental-features = [

106
nix/configuration/util/install_files/default.nix
View File

@ -51,20 +51,51 @@ let
(if group != "" then "-g ${group}" else "")
];
in
if target.recursive then
[
''
find ${source} -type f -print0 | while read -r -d "" file; do
relative_path=$(realpath -s --relative-to ${source} "$file")
full_dest=${destination}/"$relative_path"
containing_directory=$(dirname "$full_dest")
if [ ! -e "$containing_directory" ]; then
$DRY_RUN_CMD install $VERBOSE_ARG -d "$containing_directory"
fi
$DRY_RUN_CMD install $VERBOSE_ARG -D --compare ${flags} "$file" "$full_dest"
done
''
]
else
[
''
$DRY_RUN_CMD install $VERBOSE_ARG -D --compare ${flags} ${source} ${destination}
''
]
);
"uninstall" = (
target:
let
inherit (get_shell_values target)
source
destination
;
in
if target.recursive then
[
''
find ${source} -type f -print0 | while read -r -d "" file; do
relative_path=$(realpath -s --relative-to ${source} "$file")
full_dest=${destination}/"$relative_path"
$DRY_RUN_CMD echo rm -f "$full_dest"
done
''
]
else
[
''
$DRY_RUN_CMD echo rm -f ${destination}
''
]
);
};
install_user_file_symlink = {
@ -75,6 +106,7 @@ let
inherit (get_shell_values target)
source
destination
mode
username
group
;
@ -84,22 +116,59 @@ let
group
]
);
flags = lib.strings.concatStringsSep " " [
(if mode != "" then "-m ${mode}" else "")
(if username != "" then "-o ${username}" else "")
(if group != "" then "-g ${group}" else "")
];
in
if target.recursive then
[
''
find ${source} -type f -print0 | while read -r -d "" file; do
relative_path=$(realpath -s --relative-to ${source} "$file")
full_dest=${destination}/"$relative_path"
containing_directory=$(dirname "$full_dest")
if [ ! -e "$containing_directory" ]; then
$DRY_RUN_CMD install $VERBOSE_ARG -d ${flags} "$containing_directory"
fi
$DRY_RUN_CMD ln $VERBOSE_ARG -s "$file" "$full_dest"
$DRY_RUN_CMD chown $VERBOSE_ARG -h ${owner} "$full_dest"
done
''
]
else
[
''
$DRY_RUN_CMD ln $VERBOSE_ARG -s ${source} ${destination}
$DRY_RUN_CMD chown $VERBOSE_ARG -h ${owner} ${destination}
''
]
);
"uninstall" = (
target:
let
inherit (get_shell_values target)
source
destination
;
in
if target.recursive then
[
''
find ${source} -type f -print0 | while read -r -d "" file; do
relative_path=$(realpath -s --relative-to ${source} "$file")
full_dest=${destination}/"$relative_path"
$DRY_RUN_CMD echo rm -f "$full_dest"
done
''
]
else
[
''
$DRY_RUN_CMD echo rm -f ${destination}
''
]
);
};
in
@ -176,6 +245,13 @@ in
example = ./files/foo.txt;
description = "The source file to install into the destination.";
};
recursive = lib.mkOption {
type = lib.types.bool;
default = false;
defaultText = "recursive";
example = lib.literalExpression false;
description = "Whether we want to recurse through the directory doing individual installs for each file.";
};
};
config = {
@ -201,9 +277,11 @@ in
builtins.map (user: (builtins.map (path: user.file."${path}") (attrNames user.file))) enabled_users
);
enabled_file_targets = filter (target: target.enable) all_file_targets;
check_commands = builtins.map (install_user_file "check") enabled_file_targets;
install_commands = builtins.map (install_user_file "install") enabled_file_targets;
uninstall_commands = builtins.map (install_user_file "uninstall") enabled_file_targets;
check_commands = lib.flatten (builtins.map (install_user_file "check") enabled_file_targets);
install_commands = lib.flatten (builtins.map (install_user_file "install") enabled_file_targets);
uninstall_commands = lib.flatten (
builtins.map (install_user_file "uninstall") enabled_file_targets
);
in
{
systemd.services.me-install-file = {
@ -220,12 +298,26 @@ in
Type = "oneshot";
RemainAfterExit = "yes";
};
script = (
lib.strings.concatStringsSep "\n" (filter (cmd: cmd != "") (check_commands ++ install_commands))
);
preStop = (lib.strings.concatStringsSep "\n" (filter (cmd: cmd != "") uninstall_commands));
script =
''
set -o pipefail
IFS=$'\n\t'
''
+ (lib.strings.concatStringsSep "\n" (
[
]
++ check_commands
++ install_commands
));
preStop =
''
set -o pipefail
IFS=$'\n\t'
''
+ (lib.strings.concatStringsSep "\n" uninstall_commands);
};
environment.etc."install_out".text = config.systemd.services.me-install-file.script;
environment.etc."uninstall_out".text = config.systemd.services.me-install-file.preStop;
};
}