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Allow impure Flake
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Fixes: #170
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@shikanime
shikanime committed Nov 2, 2024
1 parent 8cd8213 commit 0988423
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Showing 5 changed files with 64 additions and 32 deletions.
1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -87,6 +87,7 @@ jobs:
| `source-revision` | The revision of `flakehub-push` to use. Conflicts with all other `source-*` options. | string | | |
| `source-tag` | The tag of `flakehub-push` to use. Conflicts with all other `source-*` options. | string | | |
| `source-url` | A URL pointing to a `flakehub-push` binary. Overrides all other `source-*` options. | string | | |
| `impure` | Allow the use of impure operations (e.g. `builtins.fetchGit`). | boolean | | `false` |

## Developing `flakehub-push`

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3 changes: 3 additions & 0 deletions src/cli/mod.rs
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Expand Up @@ -53,6 +53,9 @@ pub(crate) struct FlakeHubPushCli {
#[clap(long, env = "FLAKEHUB_PUSH_MIRROR", default_value_t = false)]
pub(crate) mirror: bool,

#[clap(long, env = "FLAKEHUB_PUSH_IMPURE", value_parser = EmptyBoolParser, default_value_t = false)]
pub(crate) impure: bool,

/// URL of a JWT mock server (like https://github.com/spectare/fakeidp) which can issue tokens.
#[clap(long)]
pub(crate) jwt_issuer_uri: Option<String>,
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81 changes: 52 additions & 29 deletions src/flake_info.rs
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Expand Up @@ -19,28 +19,37 @@ pub struct FlakeMetadata {
pub(crate) source_dir: std::path::PathBuf,
pub(crate) flake_locked_url: String,
pub(crate) metadata_json: serde_json::Value,
pub(crate) impure: bool,
my_flake_is_too_big: bool,
}

#[derive(Debug, Deserialize)]
pub struct FlakeOutputs(pub serde_json::Value);

impl FlakeMetadata {
pub async fn from_dir(directory: &Path, my_flake_is_too_big: bool) -> Result<Self> {
let output = tokio::process::Command::new("nix")
.arg("flake")
.arg("metadata")
.arg("--json")
.arg("--no-write-lock-file")
.arg(directory)
.output()
.await
.wrap_err_with(|| {
eyre!(
"Failed to execute `nix flake metadata --json {}`",
directory.display()
)
})?;
pub async fn from_dir(
directory: &Path,
my_flake_is_too_big: bool,
impure: bool,
) -> Result<Self> {
let mut command = tokio::process::Command::new("nix");
command.arg("flake");
command.arg("metadata");
command.arg("--json");
command.arg("--no-write-lock-file");

if impure {
command.arg("--impure");
}

command.arg(directory);

let output = command.output().await.wrap_err_with(|| {
eyre!(
"Failed to execute `nix flake metadata --json {}`",
directory.display()
)
})?;

let metadata_json: serde_json::Value = serde_json::from_slice(&output.stdout)
.wrap_err_with(|| {
Expand Down Expand Up @@ -79,6 +88,7 @@ impl FlakeMetadata {
flake_locked_url: flake_locked_url.to_string(),
metadata_json,
my_flake_is_too_big,
impure,
})
}

Expand All @@ -93,6 +103,10 @@ impl FlakeMetadata {
command.arg("--all-systems");
}

if self.impure {
command.arg("--impure");
}

command.arg("--json");
command.arg("--no-write-lock-file");
command.arg(&self.source_dir);
Expand Down Expand Up @@ -135,20 +149,24 @@ impl FlakeMetadata {
/// this does not ensure anything about the recentness of the locked revs.
pub async fn check_lock_if_exists(&self) -> Result<()> {
if self.source_dir.join("flake.lock").exists() {
let output = tokio::process::Command::new("nix")
.arg("flake")
.arg("metadata")
.arg("--json")
.arg("--no-update-lock-file")
.arg(&self.source_dir)
.output()
.await
.wrap_err_with(|| {
eyre!(
"Failed to execute `nix flake metadata --json --no-update-lock-file {}`",
self.source_dir.display()
)
})?;
let mut command = tokio::process::Command::new("nix");
command.arg("flake");
command.arg("metadata");
command.arg("--json");
command.arg("--no-update-lock-file");

if self.impure {
command.arg("--impure");
}

command.arg(&self.source_dir);

let output = command.output().await.wrap_err_with(|| {
eyre!(
"Failed to execute `nix flake metadata --json --no-update-lock-file {}`",
self.source_dir.display()
)
})?;

if !output.status.success() {
let command = format!(
Expand Down Expand Up @@ -278,6 +296,11 @@ impl FlakeMetadata {
cmd.arg("eval");
cmd.arg("--json");
cmd.arg("--no-write-lock-file");

if self.impure {
cmd.arg("--impure");
}

cmd.arg(format!("{}#contents", tempdir_path.display()));
let output = cmd.output().await.wrap_err_with(|| {
eyre!(
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7 changes: 4 additions & 3 deletions src/release_metadata.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -46,9 +46,10 @@ impl ReleaseMetadata {
// flake_dir is an absolute path of flake_root(aka git_root)/subdir
let flake_dir = local_git_root.join(&subdir);

let flake_metadata = FlakeMetadata::from_dir(&flake_dir, cli.my_flake_is_too_big)
.await
.wrap_err("Getting flake metadata")?;
let flake_metadata =
FlakeMetadata::from_dir(&flake_dir, cli.my_flake_is_too_big, cli.impure)
.await
.wrap_err("Getting flake metadata")?;
tracing::debug!("Got flake metadata: {:?}", flake_metadata);

// sanity checks
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4 changes: 4 additions & 0 deletions ts/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ type ExecutionEnvironment = {
FLAKEHUB_PUSH_ROLLING?: string;
FLAKEHUB_PUSH_MIRROR?: string;
FLAKEHUB_PUSH_ROLLING_MINOR?: string;
FLAKEHUB_PUSH_IMPURE?: string;
};

class FlakeHubPushAction extends DetSysAction {
Expand All @@ -44,6 +45,7 @@ class FlakeHubPushAction extends DetSysAction {
private mirror: boolean;
private name: string | null;
private rollingMinor: number | null;
private impure: boolean;

constructor() {
super({
Expand Down Expand Up @@ -72,6 +74,7 @@ class FlakeHubPushAction extends DetSysAction {
this.mirror = inputs.getBool("mirror");
this.name = inputs.getStringOrNull("name");
this.rollingMinor = inputs.getNumberOrNull("rolling-minor");
this.impure = inputs.getBool("impure");
}

async main(): Promise<void> {
Expand Down Expand Up @@ -125,6 +128,7 @@ class FlakeHubPushAction extends DetSysAction {
env.FLAKEHUB_PUSH_INCLUDE_OUTPUT_PATHS = this.includeOutputPaths.toString();
env.FLAKEHUB_PUSH_ROLLING = this.rolling.toString();
env.FLAKEHUB_PUSH_MIRROR = this.mirror.toString();
env.FLAKEHUB_PUSH_IMPURE = this.impure.toString();

if (this.name !== null) {
env.FLAKEHUB_PUSH_NAME = this.name;
Expand Down

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