Automagically add --rebuild to nix build commands in interactive mode

[?]

Apr 11, 2023, 9:58 PM

FYBNOJLTCRNCVUO65HCB5KI6OVOBU5AWG5RKMENQEFDPWZYKCVIAC

Dependencies

[2] 7KPFEFGS Skip rebuilds in automatic mode
[3] U6EHWR7Y Tweak --gcroots
[4] VGNXPE5D Only rebuild the vm integration test in interactive mode
[5] 3GPSC2KX Add compatibility checks for fancy parts of the demos
[6] VUARRVTI Clean up strings
[7] ZV5WPO25 Extend 02
[8] WNFTZY3M Optionally prevent relevant nix store paths from being GC'ed
[9] BH5XPS7C Add 07-vm-integration test
[10] TEQJC3HX Add 03-nix-container
[11] VXZ5QMIE Fix CI
[12] W2G433QU Refactor libdemo and flakeref for nix run commands
[*] VMUKZQZR Work on 02-nix-build

Change contents

replacement in bash/nix-container-demo-helper.sh at line 37

[5.650]→[5.650:732](∅→∅),[5.732]→[3.1115:1211](∅→∅),[3.1211]→[5.842:909](∅→∅),[5.842]→[5.842:909](∅→∅)

local -r storepath="${1}"
echo "Preventing GC for '${storepath}'"
local -r gcroot="${__nix_gcroot_dir}/${__nix_gcroot_prefix}-$(basename "${storepath}")"
rm -f "${gcroot}"
ln -s "${storepath}" "${gcroot}"

[5.650]

[3.1212]

if [ "${WRAP_NIX_MAKE_GCROOTS:-0}" = 1 ]; then
local -r storepath="${1}"
echo "Preventing GC for '${storepath}'"
local -r gcroot="${__nix_gcroot_dir}/${__nix_gcroot_prefix}-$(basename "${storepath}")"
rm -f "${gcroot}"
ln -s "${storepath}" "${gcroot}"
fi
replacement in bash/nix-container-demo-helper.sh at line 58

[5.928]→[5.928:1074](∅→∅)

if [ "${WRAP_NIX_MAKE_GCROOTS:-0}" = 0 ]; then
command nix "$@"
else
local -r action=$1
shift

[5.928]

[5.1074]

local -r action=$1
shift
replacement in bash/nix-container-demo-helper.sh at line 61

[5.1075]→[5.1075:1131](∅→∅)

local nix_args=()
local args=()

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[5.1131]

local nix_args=()
local args=()
replacement in bash/nix-container-demo-helper.sh at line 64

[5.1132]→[5.1132:1503](∅→∅)

local __encountered_dashes=0
while [ $# -gt 0 ]; do
if [ "$1" == "--" ]; then
__encountered_dashes=1
elif [ "${__encountered_dashes}" = 1 ]; then
args+=("$1")
else
nix_args+=("$1")
fi
shift
done

[5.1132]

[5.1503]

local __encountered_dashes=0
while [ $# -gt 0 ]; do
if [ "$1" == "--" ]; then
__encountered_dashes=1
elif [ "${__encountered_dashes}" = 1 ]; then
args+=("$1")
else
nix_args+=("$1")
fi
shift
done
replacement in bash/nix-container-demo-helper.sh at line 76

[5.1504]→[5.1504:2304](∅→∅)

local storepath
if [ "${action}" = run ]; then
command nix run "${nix_args[@]}" -- "${args[@]}"
for storepath in $(command nix build "${nix_args[@]}" --no-link --print-out-paths); do
__nix_make_gcroot "${storepath}"
done
elif [ "${action}" = build ]; then
command nix build "${nix_args[@]}"
for storepath in $(command nix build "${nix_args[@]}" --no-link --print-out-paths); do
__nix_make_gcroot "${storepath}"
done
elif [ "${action}" = develop ]; then
# shellcheck disable=SC2016
storepath="$(command nix develop "${nix_args[0]}" --command bash -c 'echo ${NIX_GCROOT}' 2>/dev/null)"

[5.1504]

[5.2304]

local storepath
if [ "${action}" = run ]; then
command nix run "${nix_args[@]}" -- "${args[@]}"
for storepath in $(command nix build "${nix_args[@]}" --no-link --print-out-paths); do
replacement in bash/nix-container-demo-helper.sh at line 81

[5.2353]→[5.2353:2406](∅→∅)

command nix develop "${nix_args[@]}"

[5.2353]

[5.2406]

done
elif [ "${action}" = build ]; then
if __libdemo_is_interactive && [ -e "$(nix eval --raw "${nix_args[0]}")" ]; then
command nix build "${nix_args[@]}" --rebuild
replacement in bash/nix-container-demo-helper.sh at line 86

[5.2423]→[5.2423:2480](∅→∅)

command nix "${action}" "${nix_args[@]}"

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[5.2480]

command nix build "${nix_args[@]}"
edit in bash/nix-container-demo-helper.sh at line 88

[5.2495]

[5.2495]

for storepath in $(command nix build "${nix_args[@]}" --no-link --print-out-paths); do
__nix_make_gcroot "${storepath}"
done
elif [ "${action}" = develop ]; then
# shellcheck disable=SC2016
storepath="$(command nix develop "${nix_args[0]}" --command bash -c 'echo ${NIX_GCROOT}' 2>/dev/null)"
__nix_make_gcroot "${storepath}"
command nix develop "${nix_args[@]}"
else
command nix "${action}" "${nix_args[@]}"
edit in 07-vm-integration-test/demo.sh at line 40

[5.5940]→[5.5940:5994](∅→∅),[5.5994]→[4.18:52](∅→∅)

n "Force a rebuild so we can see what is happening"

i nix build "${dir}" -L --rebuild
edit in 03-nix-container/demo.sh at line 14

[5.2723]→[5.5453:5516](∅→∅),[5.5453]→[5.5453:5516](∅→∅),[5.5516]→[5.2724:2773](∅→∅)

x nix build "${dir}#container" -L -o "${dir}/result-container"
, "Let's rebuild so we can see what happened..."
replacement in 03-nix-container/demo.sh at line 15

[5.2862]→[2.37:110](∅→∅)

i nix build "${dir}#container" -L -o "${dir}/result-container --rebuild"

[5.2862]

[5.5590]

x nix build "${dir}#container" -L -o "${dir}/result-container"
edit in 02-nix-build/demo.sh at line 34

[5.4682]

[5.552]

n "If the package was already built and put into the Nix store before this would normally be a no-op,"
, "but for the purposes of an interactive demo we will rebuild it, so we can see what happens."
edit in 02-nix-build/demo.sh at line 39

[5.516]→[5.4683:4850](∅→∅),[5.4850]→[2.116:150](∅→∅),[2.150]→[5.673:674](∅→∅),[5.611]→[5.673:674](∅→∅),[5.673]→[5.673:674](∅→∅)

h "Maybe there was no output; this means that package was already built and put into the Nix store"
, "Let's build it again so we can see what happens under the hood"
i nix build "${dir}" -L --rebuild