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Error on --locked and --frozen when script lockfile is missing (#18832)

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However, we do not error when these are set as environment variables for
backwards compatibility and general safety since those variables could
only be intended for project use.

Closes https://github.com/astral-sh/uv/issues/18826

---------

Co-authored-by: Claude <noreply@anthropic.com>
This commit is contained in:
Zanie Blue
2026-04-07 07:33:29 -05:00
committed by GitHub
parent 24b3e37dba
commit bb2667ca9b
2 changed files with 53 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files
crates/uv/src/commands/project/run.rs
+34 -11
View File
@@ -74,7 +74,8 @@ use crate::commands::reporters::PythonDownloadReporter;
use crate::commands::{ExitStatus, diagnostics, project};
use crate::printer::Printer;
use crate::settings::{
FrozenSource, GlobalSettings, LockCheck, ResolverInstallerSettings, ResolverSettings,
FrozenSource, GlobalSettings, LockCheck, LockCheckSource, ResolverInstallerSettings,
ResolverSettings,
};
/// Run a command.
@@ -359,18 +360,40 @@ hint: If you are running a script with `{}` in the shebang, you may need to incl
Some(environment.into_interpreter())
} else {
// If no lockfile is found, warn against `--locked` and `--frozen`.
// If no lockfile is found, error for `--locked` and `--frozen` when provided
// via CLI. For environment variables and configuration, warn instead to avoid
// breaking users who set `UV_LOCKED=1` globally.
if let LockCheck::Enabled(lock_check) = lock_check {
warn_user!(
"No lockfile found for Python script (ignoring `{lock_check}`); run `{}` to generate a lockfile",
"uv lock --script".green(),
);
match lock_check {
LockCheckSource::LockedCli | LockCheckSource::Check => {
bail!(
"Unable to find lockfile for Python script, but `{lock_check}` was provided. To create a lockfile, run `{}`.",
"uv lock --script".green(),
);
}
LockCheckSource::LockedEnv | LockCheckSource::LockedConfiguration => {
warn_user!(
"No lockfile found for Python script (ignoring `{lock_check}`); run `{}` to generate a lockfile",
"uv lock --script".green(),
);
}
}
}
if frozen.is_some() {
warn_user!(
"No lockfile found for Python script (ignoring `--frozen`); run `{}` to generate a lockfile",
"uv lock --script".green(),
);
if let Some(frozen_source) = frozen {
match frozen_source {
FrozenSource::Cli => {
bail!(
"Unable to find lockfile for Python script, but `--frozen` was provided. To create a lockfile, run `{}`.",
"uv lock --script".green(),
);
}
FrozenSource::Env | FrozenSource::Configuration => {
warn_user!(
"No lockfile found for Python script (ignoring `--frozen`); run `{}` to generate a lockfile",
"uv lock --script".green(),
);
}
}
}
// Install the script requirements, if necessary. Otherwise, use an isolated environment.
crates/uv/tests/it/run.rs
+19 -12
View File
@@ -414,15 +414,25 @@ fn run_pep723_script() -> Result<()> {
----- stderr -----
");
// Running a script with `--locked` should warn.
// Running a script with `--locked` should error.
uv_snapshot!(context.filters(), context.run().arg("--locked").arg("main.py"), @"
success: false
exit_code: 2
----- stdout -----
----- stderr -----
error: Unable to find lockfile for Python script, but `--locked` was provided. To create a lockfile, run `uv lock --script`.
");
// Running a script with `UV_LOCKED` should warn (not error).
uv_snapshot!(context.filters(), context.run().env("UV_LOCKED", "1").arg("main.py"), @"
success: true
exit_code: 0
----- stdout -----
Hello, world!
----- stderr -----
warning: No lockfile found for Python script (ignoring `--locked`); run `uv lock --script` to generate a lockfile
warning: No lockfile found for Python script (ignoring `UV_LOCKED=1`); run `uv lock --script` to generate a lockfile
");
// If the script can't be resolved, we should reference the script.
@@ -974,19 +984,14 @@ fn run_pep723_script_lock() -> Result<()> {
"#
})?;
// Without a lockfile, running with `--locked` should warn.
// Without a lockfile, running with `--locked` should error.
uv_snapshot!(context.filters(), context.run().arg("--locked").arg("main.py"), @"
success: true
exit_code: 0
success: false
exit_code: 2
----- stdout -----
Hello, world!
----- stderr -----
warning: No lockfile found for Python script (ignoring `--locked`); run `uv lock --script` to generate a lockfile
Resolved 1 package in [TIME]
Prepared 1 package in [TIME]
Installed 1 package in [TIME]
+ iniconfig==2.0.0
error: Unable to find lockfile for Python script, but `--locked` was provided. To create a lockfile, run `uv lock --script`.
");
// Explicitly lock the script.
@@ -1037,7 +1042,9 @@ fn run_pep723_script_lock() -> Result<()> {
----- stderr -----
Resolved 1 package in [TIME]
Checked 1 package in [TIME]
Prepared 1 package in [TIME]
Installed 1 package in [TIME]
+ iniconfig==2.0.0
");
// With a lockfile, running with `--locked` should not warn.