mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-23 06:01:15 +00:00
147 lines
4.2 KiB
Bash
Executable file
147 lines
4.2 KiB
Bash
Executable file
#! /bin/sh
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set -x
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own_dir="$(cd "$(dirname "$0")"; sh -c pwd)"
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source "$own_dir/snippets.sh"
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[ -z "$1" ] && {
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echo "Specify main expression filename."
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exit 1;
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}
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main_file="$1"
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main_dir="$(cd "$(dirname "$main_file")" ; sh -c pwd)"
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file_name="$(basename "$main_file")"
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defs_file="$main_dir"/src-info-for-"$file_name"
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src_file="$main_dir"/src-for-"$file_name"
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# OK, [vcs] revert is always possible
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new_src_file="$main_dir"/src-for-"$file_name"
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forcedUrl="$2"
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defs_dir="$("$own_dir"/attrset-to-dir.sh "$defs_file")"
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src_defs_dir="$("$own_dir"/attrset-to-dir.sh "$src_file")"
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getAttr () {
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file="$defs_dir"/"$1"
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data="$( ( [ -f "$file" ] && cat "$file" ) || echo "$2" )"
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echo "attribute $1 obtained as: [[$data]]" >&2
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echo "$data"
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}
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method="$(getAttr method fetchurl)"
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baseName="$(getAttr baseName 'unnamed-package')"
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commonPrefetchVars=" version name hash"
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prefetchClause=""
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[ fetchSF = "$method" ] && {
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if [ -z "$forcedUrl" ]; then
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freshUrl="$("$own_dir"/urls-from-page.sh "$(getAttr downloadPage)" |
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eval "egrep \"$(getAttr sourceRegexp '.*[.]tar[.].*|.*[.]tgz$|.*[.]tbz2$')\"" |
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eval "egrep -v \"$(getAttr blacklistRegexp '^$')\"" |
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eval "$(getAttr choiceCommand 'head -1')")"
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if ! egrep ':' <<< "$freshUrl" ; then
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freshUrl="$(dirname "$(getAttr downloadPage).")/$freshUrl"
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fi
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echo "Found download link: $freshUrl" >&2
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else
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freshUrl="$forcedUrl"
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fi
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freshUrl="$(echo "$freshUrl" | sed -re "$skipRedirectSF")"
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echo "Sourceforge-corrected URL: $freshUrl" >&2
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version="$(echo "$freshUrl" |
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sed -re "$(getAttr versionExtractorSedScript "$extractVersionSF")")"
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baseName="$(getAttr baseName "$(echo "$freshUrl" | sed -re 's@.*/project/([^/]+)/.*@\1@')")"
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url="$freshUrl"
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name="$baseName-$version"
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advertisedUrl="$freshUrl"
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if [ x"$freshUrl" = x"$(cat "$src_defs_dir"/advertisedUrl)" ]; then
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echo "Source link not changed" >&2
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exit
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fi
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hash=$(nix-prefetch-url "$freshUrl")
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prefetchVars="url advertisedUrl";
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}
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[ fetchurl = "$method" ] && {
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if [ -z "$forcedUrl" ] ; then
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freshUrl="$("$own_dir"/urls-from-page.sh "$(getAttr downloadPage)" |
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eval "egrep \"$(getAttr sourceRegexp '.*[.]tar[.].*|.*[.]tgz$|.*[.]tbz2$')\"" |
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eval "egrep -v \"$(getAttr blacklistRegexp '^$')\"" |
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eval "$(getAttr choiceCommand 'head -1')")"
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if ! egrep ':' <<< "$freshUrl" ; then
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freshUrl="$(dirname "$(getAttr downloadPage).")/$freshUrl"
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fi
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echo "Found download link: $freshUrl" >&2
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else
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freshUrl="$forcedUrl"
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fi
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version="$(echo "$freshUrl" |
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eval "sed -re \"$(getAttr versionExtractorSedScript \
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's/.*-([0-9.]+)[.].*/\1/')\"")"
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mirrorUrl="$(echo "$freshUrl" |
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eval "sed -r -e \"$(getAttr versionReferenceCreator \
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's/-'"${version}"'[.]/-\${version}./')\"" |
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eval "sed -r -e \"$(getAttr mirrorSedScript)\"")"
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url="$mirrorUrl"
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name="$baseName-$version"
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advertisedUrl="$freshUrl"
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url="$mirrorUrl"
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if [ x"$freshUrl" = x"$(cat "$src_defs_dir"/advertisedUrl)" ]; then
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echo "Source link not changed" >&2
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exit
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fi
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hash=$(nix-prefetch-url "$freshUrl")
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prefetchVars="url advertisedUrl";
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}
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[ "fetchgit" = "$method" ] && {
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repoUrl="$(getAttr repoUrl)"
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export NIX_PREFETCH_GIT_CHECKOUT_HOOK="
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cat .git/HEAD
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"
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export NIX_HASH_ALGO=sha256
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rev="$(getAttr rev '')";
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rev_and_hash="$("$own_dir"/../fetchgit/nix-prefetch-git "$repoUrl" "$rev" | tee /dev/stderr | tail -2)"
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rev="$(echo "$rev_and_hash" | head -1)"
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url="$repoUrl";
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hash="$(echo "$rev_and_hash" | tail -1)"
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version="$rev"
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name="$baseName-$version"
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prefetchVars="rev url";
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}
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prefetchAssignments="";
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for i in $commonPrefetchVars $prefetchVars; do
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prefetchAssignments="$prefetchAssignments $i=\"$(eval echo \"\$$i\")\";$(echo -e '\n ')"
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done;
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extraAssignments=""
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for i in $(getAttr extraVars ''); do
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eval "$(getAttr "eval_$i" 'i=""')"
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extraAssignments="$extraAssignments $i=\"$(eval echo \"\$$i\")\";$(echo -e '\n ')"
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done
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cat << EOF > "$new_src_file"
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rec {
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$prefetchAssignments
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$extraAssignments
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}
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EOF
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