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https://github.com/NixOS/nixpkgs.git
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da31bd5673
Init patchRcPath hooks, which provides utilities to patch shell scripts to be sourced by users. Add test cases and documentation.
51 lines
1.8 KiB
Bash
51 lines
1.8 KiB
Bash
patchRcPathBash(){
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local FILE_TO_PATCH="$1"
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local SOURCETIME_PATH="$2"
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local FILE_TO_WORK_ON="$(mktemp "$(basename "$FILE_TO_PATCH").XXXXXX.tmp")"
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cat <<EOF >> "$FILE_TO_WORK_ON"
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# Lines to add to PATH the source-time utilities for Nixpkgs packaging
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if [[ -n "\${NIXPKGS_SOURCETIME_PATH-}" ]]; then
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NIXPKGS_SOURCETIME_PATH_OLD="\$NIXPKGS_SOURCETIME_PATH;\${NIXPKGS_SOURCETIME_PATH_OLD-}"
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fi
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NIXPKGS_SOURCETIME_PATH="$SOURCETIME_PATH"
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if [[ -n "\$PATH" ]]; then
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PATH="\$NIXPKGS_SOURCETIME_PATH:\$PATH"
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else
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PATH="\$NIXPKGS_SOURCETIME_PATH"
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fi
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export PATH
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# End of lines to add to PATH source-time utilities for Nixpkgs packaging
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EOF
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cat "$FILE_TO_PATCH" >> "$FILE_TO_WORK_ON"
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cat <<EOF >> "$FILE_TO_WORK_ON"
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# Lines to clean up inside PATH the source-time utilities for Nixpkgs packaging
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if [[ -n "\${PATH-}" ]]; then
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# Remove the inserted section
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PATH="\${PATH/\$NIXPKGS_SOURCETIME_PATH}"
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# Remove the duplicated colons
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PATH="\${PATH//::/:}"
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# Remove the prefixing colon
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if [[ -n "\$PATH" && "\${PATH:0:1}" == ":" ]]; then
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PATH="\${PATH:1}"
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fi
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# Remove the trailing colon
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if [[ -n "\$PATH" && "\${PATH:\${#PATH}-1}" == ":" ]]; then
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PATH="\${PATH::}"
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fi
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export PATH
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fi
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if [[ -n "\${NIXPKGS_SOURCETIME_PATH_OLD-}" ]]; then
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IFS="" read -r -d ";" NIXPKGS_SOURCETIME_PATH <<< "\$NIXPKGS_SOURCETIME_PATH_OLD"
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NIXPKGS_SOURCETIME_PATH_OLD="\${NIXPKGS_SOURCETIME_PATH_OLD:\${#NIXPKGS_SOURCETIME_PATH}+1}"
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else
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unset NIXPKGS_SOURCETIME_PATH
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fi
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if [[ -z "\${NIXPKGS_SOURCETIME_PATH_OLD-}" ]]; then
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unset NIXPKGS_SOURCETIME_PATH_OLD
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fi
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# End of lines to clean up inside PATH the source-time utilities for Nixpkgs packaging
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EOF
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cat "$FILE_TO_WORK_ON" > "$FILE_TO_PATCH"
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rm "$FILE_TO_WORK_ON"
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}
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