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Merge pull request #1637 from grahame/cargo-errors 

suggest sync/init to user as appropriate
This commit is contained in:
Brian Anderson 2012-01-24 12:01:39 -08:00
parent 7356126457 fe70212f5a
commit bd17319b41
1 changed files with 22 additions and 2 deletions
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24
src/cargo/cargo.rs
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@ -476,6 +476,25 @@ fn install_package(c: cargo, wd: str, pkg: package) {
}
}
fn cargo_suggestion(c: cargo, syncing: bool, fallback: fn())
{
if c.sources.size() == 0u {
error("No sources defined. You may wish to run " +
"\"cargo init\" then \"cargo sync\".");
ret;
}
if !syncing {
let npkg = 0u;
c.sources.values({ |v| npkg += vec::len(v.packages) });
if npkg == 0u {
error("No packages known. You may wish to run " +
"\"cargo sync\".");
ret;
}
}
fallback();
}
fn install_uuid(c: cargo, wd: str, uuid: str) {
let ps = [];
for_each_package(c, { |s, p|
@ -489,7 +508,7 @@ fn install_uuid(c: cargo, wd: str, uuid: str) {
install_package(c, wd, p);
ret;
} else if vec::len(ps) == 0u {
error("No packages.");
cargo_suggestion(c, false, { || error("No packages match uuid."); });
ret;
}
error("Found multiple packages:");
@ -510,7 +529,7 @@ fn install_named(c: cargo, wd: str, name: str) {
install_package(c, wd, p);
ret;
} else if vec::len(ps) == 0u {
error("No packages.");
cargo_suggestion(c, false, { || error("No packages match name."); });
ret;
}
error("Found multiple packages:");
@ -651,6 +670,7 @@ fn cmd_sync(c: cargo, argv: [str]) {
if vec::len(argv) == 3u {
sync_one(c, argv[2], c.sources.get(argv[2]));
} else {
cargo_suggestion(c, true, { || } );
c.sources.items { |k, v|
sync_one(c, k, v);
}