build: use CARGO environment variable if set

When enabling support for Temporal, check for the `CARGO` environment
variable to locate the `cargo` binary (defaulting to `cargo` if not
set) and use this to build `deps/crates`.

This will allow using Cargo on systems where the Cargo binary name is
suffixed with the version, e.g. `cargo-1.82` on Ubuntu 24.04.

PR-URL: #62421
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Author: richardlau

configure.py

@@ -1452,7 +1452,9 @@ def get_cargo_version(cargo):
   except OSError:
     error('''No acceptable cargo found!
 
-       Please make sure you have cargo installed on your system.''')
+       Please make sure you have cargo installed on your system and/or
+       consider adjusting the CARGO environment variable if you have installed
+       it in a non-standard prefix.''')
 
   with proc:
     cargo_ret = to_utf8(proc.communicate()[0])
@@ -1540,8 +1542,9 @@ def check_compiler(o):
     # Minimum cargo and rustc versions should match values in BUILDING.md.
     min_cargo_ver_tuple = (1, 82)
     min_rustc_ver_tuple = (1, 82)
-    cargo_ver = get_cargo_version('cargo')
-    print_verbose(f'Detected cargo: {cargo_ver}')
+    cargo = os.environ.get('CARGO', 'cargo')
+    cargo_ver = get_cargo_version(cargo)
+    print_verbose(f'Detected cargo (CARGO={cargo}): {cargo_ver}')
     cargo_ver_tuple = tuple(map(int, cargo_ver.split('.')))
     if cargo_ver_tuple < min_cargo_ver_tuple:
       warn(f'cargo {cargo_ver} too old, need cargo {".".join(map(str, min_cargo_ver_tuple))}')
@@ -2751,6 +2754,11 @@ def make_bin_override():
 # will fail to run python scripts.
 gyp_args += ['-Dpython=' + python]
 
+if options.v8_enable_temporal_support and not options.shared_temporal_capi:
+  cargo = os.environ.get('CARGO')
+  if cargo:
+    gyp_args += ['-Dcargo=' + cargo]
+
 if options.use_ninja:
   gyp_args += ['-f', 'ninja-' + flavor]
 elif flavor == 'win' and sys.platform != 'msys':

deps/crates/crates.gyp

@@ -1,5 +1,6 @@
 {
   'variables': {
+    'cargo%': 'cargo',
     'cargo_vendor_dir': './vendor',
   },
   'conditions': [
@@ -48,7 +49,7 @@
             '<(node_crates_libpath)'
           ],
           'action': [
-            'cargo',
+            '<(cargo)',
             'rustc',
             '<@(cargo_build_flags)',
             '--frozen',