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https://gitlab.com/buildroot.org/buildroot.git
synced 2026-08-01 21:23:51 -09:00
63877f9e86
Currently, the relocate-sdk.sh script scans the whole extracted SDK tree to find instances of paths it needs to replace, which can take a significant amount of time when the SDK is large, particularly relative to the number of files that actually need to change. However, the resulting list only depends on the SDK tarball itself, so we can calculate it at build time and ship it with the tarball so relocate-sdk.sh can use it directly. Testing this on my machine with somewhat IOPS-limited rotating media, the time goes down from: $ time ./relocate-sdk.sh Relocating the buildroot SDK from [...] to [...] ... ./relocate-sdk.sh 5.19s user 26.21s system 9% cpu 5:34.40 total To: $ time ./relocate-sdk.sh Relocating the buildroot SDK from [...] to [...] ... ./relocate-sdk.sh 0.49s user 0.29s system 103% cpu 0.749 total Signed-off-by: Florian Larysch <fl@n621.de> Signed-off-by: Arnout Vandecappelle <arnout@rnout.be>
48 lines
1.4 KiB
Bash
Executable File
48 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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if [ "$#" -gt 1 ]; then
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echo "Usage: $0 [path]"
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echo "Run this script to relocate the buildroot SDK to the current location"
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echo "If [path] is given, sets the location to [path] (without moving it)"
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exit 1
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fi
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cd "$(dirname "$(readlink -f "$0")")"
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if [ "$#" -eq 1 ]; then
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NEWPATH="$1"
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else
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NEWPATH="${PWD}"
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fi
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LOCFILE="share/buildroot/sdk-location"
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if [ ! -r "${LOCFILE}" ]; then
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echo "Previous location of the buildroot SDK not found!"
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exit 1
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fi
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OLDPATH="$(cat "${LOCFILE}")"
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if [ "${NEWPATH}" = "${OLDPATH}" ]; then
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echo "This buildroot SDK has already been relocated!"
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exit 0
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fi
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# Check if the path substitution does work properly, e.g. a tree
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# "/a/b/c" copied into "/a/b/c/a/b/c/" would not be allowed.
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newpath="$(sed -e "s|${OLDPATH}|${NEWPATH}|g" "${LOCFILE}")"
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if [ "${NEWPATH}" != "${newpath}" ]; then
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echo "Something went wrong with substituting the path!"
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echo "Please choose another location for your SDK!"
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exit 1
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fi
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echo "Relocating the buildroot SDK from ${OLDPATH} to ${NEWPATH} ..."
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# Replace the old path with the new one in all text files
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while read -r FILE ; do
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sed -i "s|${OLDPATH}|${NEWPATH}|g" "${FILE}"
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done < share/buildroot/sdk-relocs
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# At the very end, we update the location file to not break the
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# SDK if this script gets interruted.
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sed -i "s|${OLDPATH}|${NEWPATH}|g" ${LOCFILE}
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