README.md

@@ -63,17 +63,6 @@ GiB somehow).
 the build will fail if the limit is reached. If set to false, then the build
 will continue even if the limit is reached.
 
-## Soft-lock if `sccache` is preinstalled in chroot
-
-Apparently, some packages automatically use ccache/sccache if it is installed in
-the chroot, and in some cases, causes a soft-lock during a build. It is
-recommended to not have ccache/sccache preinstalled in the chroot and to just
-let the aur-helper-script install it when necessary.
-
-For example, when building `tenacity-git` with sccache preinstalled, the build
-will hang after the final build step. Apparently, killing the running `sccache`
-process stops the soft-lock in this case.
-
 # Setting up the AUR Helper
 
 The AUR Helper requires several things:
@@ -97,9 +86,7 @@ The `python-toml` package is required for the Python script to run.
 
 Use `/usr/bin/mkarchroot` to create your CHROOT in a directory.
 
-    mkarchroot $HOME/mychroot/root base base-devel cmake ninja
+    mkarchroot $HOME/mychroot/root base base-devel ccache sccache cmake ninja
-
-As noted earlier, it is better to NOT preinstall `ccache` and `sccache`.
 
 You must refer to the CHROOT as `$HOME/mychroot` if you used the same name as in
 the previous example.

update.py

@@ -742,13 +742,6 @@ def get_pkgbuild_version(
                     f'{os.environ["HOME"]}/.cargo/git:/build/.cargo/git',
                 )
             for dep in pkg_state[pkg]["other_deps"]:
-                prefetch_result = prefetch_dependency(dep, other_state)
-                if prefetch_result != "fetched":
-                    log_print(
-                        'ERROR: Failed to prefetch dep "{}"'.format(dep),
-                        other_state=other_state,
-                    )
-                    return False, None, None, None
                 dep_fullpath = get_latest_pkg(dep, "/var/cache/pacman/pkg")
                 if not dep_fullpath:
                     log_print(
@@ -1381,20 +1374,7 @@ def update_pkg_list(
             "--holdver",
         ]
         failure = False
-        if "ccache_dir" in pkg_state[pkg]:
-            pkg_state[pkg]["other_deps"].append("ccache")
-        elif "sccache_dir" in pkg_state[pkg]:
-            pkg_state[pkg]["other_deps"].append("sccache")
         for dep in pkg_state[pkg]["other_deps"]:
-            prefetch_result = prefetch_dependency(dep, other_state)
-            if prefetch_result != "fetched":
-                log_print(
-                    'ERROR: Failed to prefetch dep "{}"'.format(dep),
-                    other_state=other_state,
-                )
-                failure = True
-                pkg_state[pkg]["build_status"] = "get_dep_fail"
-                break
             dep_fullpath = get_latest_pkg(dep, "/var/cache/pacman/pkg")
             if not dep_fullpath:
                 log_print(
@@ -2050,22 +2030,6 @@ def prepare_user_chroot(other_state: [str, Any]):
     return True
 
 
-def prefetch_dependency(pkg_name, other_state: [str, Any]):
-    """Returns "fetched" on success."""
-    log_print(
-        f'Prefetching package "{pkg_name}" with "pacman -Sw"...',
-        other_state=other_state,
-    )
-    try:
-        subprocess.run(
-            ("/usr/bin/env", "sudo", "pacman", "--noconfirm", "-Sw", pkg_name),
-            check=True,
-        )
-    except subprocess.CalledProcessError:
-        return "fail"
-    return "fetched"
-
-
 def main():
     """The main function."""
     signal.signal(signal.SIGINT, signal_handler)