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fetchpatch: quote excludes #43538

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Merged
matthewbauer merged 4 commits into from
Jul 19, 2018
Merged

fetchpatch: quote excludes #43538

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aa6adfc
fetchpatch: Add includes to compliment excludes, and require that bot…
Ericson2314 Jun 5, 2018
1ddab0e
fetchpatch: escape excludes and includes
timokau Jul 15, 2018
8f9b985
fetchpatch: fail on empty patch
timokau Jul 15, 2018
3058513
fetchpatch: add option to revert a patch
timokau Jul 16, 2018
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26 changes: 23 additions & 3 deletions pkgs/build-support/fetchpatch/default.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -5,11 +5,15 @@
# stripLen acts as the -p parameter when applying a patch.

{ lib, fetchurl, patchutils }:
{ stripLen ? 0, extraPrefix ? null, excludes ? [], ... }@args:
{ stripLen ? 0, extraPrefix ? null, excludes ? [], includes ? [], ... }@args:

fetchurl ({
postFetch = ''
tmpfile="$TMPDIR/${args.sha256}"
if [ ! -s "$out" ]; then
echo "error: Fetched patch file '$out' is empty!" 1>&2
exit 1
fi
"${patchutils}/bin/lsdiff" "$out" \
| sort -u | sed -e 's/[*?]/\\&/g' \
| xargs -I{} \
Expand All @@ -21,10 +25,26 @@ fetchurl ({
--addnewprefix=b/${extraPrefix} \
''} \
--clean "$out" > "$tmpfile"
if [ ! -s "$tmpfile" ]; then
echo "error: Normalized patch '$tmpfile' is empty (while the fetched file was not)!" 1>&2
echo "Did you maybe fetch a HTML representation of a patch instead of a raw patch?" 1>&2
echo "Fetched file was:" 1>&2
cat "$out" 1>&2
exit 1
fi
${patchutils}/bin/filterdiff \
-p1 \
${builtins.toString (builtins.map (x: "-x ${x}") excludes)} \
${builtins.toString (builtins.map (x: "-x ${lib.escapeShellArg x}") excludes)} \
${builtins.toString (builtins.map (x: "-i ${lib.escapeShellArg x}") includes)} \
"$tmpfile" > "$out"
${args.postFetch or ""}
if [ ! -s "$out" ]; then
echo "error: Filtered patch '$out$' is empty (while the original patch file was not)!" 1>&2
echo "Check your includes and excludes." 1>&2
echo "Normalizd patch file was:" 1>&2
cat "$tmpfile" 1>&2
exit 1
fi
'';
} // builtins.removeAttrs args ["stripLen" "extraPrefix" "excludes" "postFetch"])
meta.broken = excludes != [] && includes != [];
} // builtins.removeAttrs args ["stripLen" "extraPrefix" "excludes" "includes" "postFetch"])