82 lines
3.2 KiB
Bash
Executable File
82 lines
3.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Check if we need to copy node_modules (e.g. in case it has been modified after last copy)
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#
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# The reasoning for a (mostly) read-only node_modules folder:
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# ideally we’d symlink the folder directly to the Nix store
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# so that we’re guaranteed to have a reproducible source.
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# Unfortunately react-native wants to build some stuff after the fact
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# and this is incompatible with the concept of a pure Nix package.
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# Therefore we copy the whole source to the repo directory,
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# allow writing only on the folders where it is absolutely required,
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# and therefore we still keep some peace of mind that the rest
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# of node_modules is unchanged the rest of the time.
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#
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set -Eeuo pipefail
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deps="$1"
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[ -d $deps ] || exit 1
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nodeModulesDir="$STATUS_REACT_HOME/node_modules"
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needCopyModules=1
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sentinelFilePath="$nodeModulesDir/.copied~"
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# Check if node_modules exists and is valid
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if [ -d "$nodeModulesDir" ]; then
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if [ -f "$sentinelFilePath" ]; then
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existingPath="$(cat $sentinelFilePath)"
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if [ "${existingPath}" != "${deps}" ]; then
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echo "Yarn modules changed, copying over new version"
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else
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echo "Checking for modifications in node_modules..."
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modifiedFiles=( $(find $nodeModulesDir -writable -type f -newer $sentinelFilePath \
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-not \( -path "$nodeModulesDir/react-native/third-party/*" -prune \
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-o -path "$nodeModulesDir/react-native/ReactAndroid/build/*" -prune \
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-o -path "$nodeModulesDir/*/android/build/*" -prune \
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-o -path './resources/icons/*' -prune \) -print) )
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if [ ${#modifiedFiles[@]} -eq 0 ]; then
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needCopyModules=0
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echo "No modifications detected."
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else
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echo "Modifications detected in ${#modifiedFiles[@]} files:\n${modifiedFiles[@]}"
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fi
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fi
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fi
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if [ $needCopyModules -eq 1 ] && [ -d $nodeModulesDir ]; then
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chmod u+w -R $nodeModulesDir
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rm -rf $nodeModulesDir
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fi
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fi
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# Replace node_modules if necessary
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if [ ! -d "$nodeModulesDir" ]; then
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if [ -n "${IN_CI_ENVIRONMENT:-''}" ]; then
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# CI jobs might run multiple tasks in parallel, so it is possible that another process is setting up node_modules. In that case, let's wait up to 10 seconds for the .tmp dir goes away
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for i in {1..10}; do
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if [ -d "$nodeModulesDir.tmp" ]; then
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echo "$nodeModulesDir.tmp exists, another process is probably setting up node_modules, waiting for 1 second..."
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sleep 1
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else
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break
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fi
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done
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fi
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if [ -d "$nodeModulesDir.tmp" ]; then
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echo "$nodeModulesDir.tmp already exists, another shell session is probably currently setting up node_modules. Please try again in a few moments."
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ls -al $STATUS_REACT_HOME
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exit 1
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elif [ ! -d "$nodeModulesDir" ]; then
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echo "Copying node_modules from Nix store (${deps}/node_modules)..."
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trap "[ -d \"$nodeModulesDir.tmp\" ] && chmod -R u+w \"$nodeModulesDir.tmp\" && rm -rf \"$nodeModulesDir.tmp\"" ERR INT HUP
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time cp -HRf --preserve=all ${deps}/node_modules/. "$nodeModulesDir.tmp"
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chmod -R u+w "$nodeModulesDir.tmp"
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mv -f "$nodeModulesDir.tmp" $nodeModulesDir
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echo -n "${deps}" > $sentinelFilePath
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trap - ERR INT HUP
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echo "Done"
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fi
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fi
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