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bef7f8fee4
- artifacts: u-boot/kernel - pt7 - adapt legacy/artifact versions; use common `capture_rename_legacy_debs_into_artifacts()`
- artifacts: u-boot - pt6: add artifact for u-boot
- use artifact version / reason in actual u-boot .deb if present
- artifacts: kernel - pt5: tune kernel version, refactor
- artifacts: kernel - pt4: squash unrelated bugs that show up; move `prepare_compilation_vars()` to default build
- artifacts: kernel - pt3: drivers+patches+.config hashing
- split file hashing function from drivers-harness; fix it so filenames are relative and sorted; sort from ${SRC}, always
- aplit prepare_kernel_config_core_or_userpatches() from `kernel_config_initialize()`
- artifacts: kernel - pt2: memoizing git ref2info
- artifacts: kernel - pt1: versioning
53 lines
1.8 KiB
Bash
53 lines
1.8 KiB
Bash
# This does many tricks. Beware.
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# Call:
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# run_memoized VAR_NAME cache_id memoized_function_name [function_args]
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function run_memoized() {
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declare var_n="${1}"
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shift
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declare cache_id="${1}"
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shift
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declare memoized_func="${1}"
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shift
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declare extra_args=("${@}")
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# shellcheck disable=SC2178 # nope, that's a nameref.
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declare -n MEMO_DICT="${var_n}" # nameref
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#display_alert "memoize" "before" "info"
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#debug_dict MEMO_DICT
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MEMO_DICT+=(["MEMO_TYPE"]="${cache_id}")
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declare single_string_input="${cache_id}"
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single_string_input="$(declare -p "${var_n}")" # this might use random order...
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MEMO_DICT+=(["MEMO_INPUT_HASH"]="$(echo "${var_n}-${single_string_input}--$(declare -f "${memoized_func}")" "${extra_args[@]}" | sha256sum | cut -f1 -d' ')")
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declare disk_cache_dir="${SRC}/cache/memoize/${MEMO_DICT[MEMO_TYPE]}"
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mkdir -p "${disk_cache_dir}"
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declare disk_cache_file="${disk_cache_dir}/${MEMO_DICT[MEMO_INPUT_HASH]}"
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if [[ -f "${disk_cache_file}" ]]; then
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# @TODO: check expiration; some stuff might want different expiration times, eg, branch vs tag vs commit
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display_alert "Using memoized ${var_n} from ${disk_cache_file}" "${MEMO_DICT[MEMO_INPUT]}" "info"
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cat "${disk_cache_file}"
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# shellcheck disable=SC1090 # yep, I'm sourcing the cache here. produced below.
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source "${disk_cache_file}"
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#display_alert "after cache hit" "before" "info"
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#debug_dict MEMO_DICT
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return 0
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fi
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display_alert "Memoizing ${var_n} to ${disk_cache_file}" "${MEMO_DICT[MEMO_INPUT]}" "info"
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# if cache miss, run the memoized_func...
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${memoized_func} "${var_n}" "${extra_args[@]}"
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# ... and save the output to the cache; twist declare -p's output due to the nameref
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declare -p "${var_n}" | sed -e 's|^declare -A ||' > "${disk_cache_file}"
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#display_alert "after cache miss" "before" "info"
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#debug_dict MEMO_DICT
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return 0
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}
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