105 lines
3.0 KiB
Plaintext
105 lines
3.0 KiB
Plaintext
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# Completion script for hledger.
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# Created using a Makefile and real hledger.
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# No set -e because this file is sourced and is not supposed to quit the current shell.
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set -o pipefail
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# TODO grep "^$wordToComplete" is not safe to use if the word contains regex
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# special chars. But it might be no problem because of COMP_WORDBREAKS.
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# TODO Try to get file from -f --file arguments from COMP_WORDS and pass it to
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# the 'hledger accounts' call.
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# Working with bash arrays is nasty compared to editing a text file. Consider
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# for example grepping an array or map a substitution on it.
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# Therefore, we create temp files in RAM for completion suggestions (see below).
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readonly HLEDGER_COMPLETION_TEMPDIR=$(mktemp -d)
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hledgerCompletionFunction() {
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#declare cmd=$1
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declare wordToComplete=$2
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declare precedingWord=$3
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declare subcommand
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for subcommand in "${COMP_WORDS[@]}"; do
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if grep -Fxqe "$subcommand" "$HLEDGER_COMPLETION_TEMPDIR/commands.txt"; then
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#declare -a options
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#readarray -t options <(grep "^$wordToComplete" "$HLEDGER_COMPLETION_TEMPDIR/options-$subcommand.txt")
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#COMPREPLY+=( "${options[@]}" )
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COMPREPLY+=( $(grep -h "^$wordToComplete" -- "$HLEDGER_COMPLETION_TEMPDIR/options-$subcommand.txt") )
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break
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fi
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subcommand=
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done
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if [[ -z $subcommand ]]; then
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declare completeFiles filenameSoFar
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echo "$precedingWord, $wordToComplete"
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case $wordToComplete in
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--file=*|--rules-file=*)
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completeFiles=1
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filenameSoFar=${wordToComplete#*=}
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;;
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esac
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case $precedingWord in
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-f|--file|--rules-file)
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completeFiles=1
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filenameSoFar=$wordToComplete
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;;
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=)
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completeFiles=1
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filenameSoFar=$wordToComplete
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;;
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esac
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if [[ -n $completeFiles ]]; then
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#COMP_WORDBREAKS='= '
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declare -a files
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# This does not work because assignment to 'files' in the "pipe
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# subshell" has no effect!
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#compgen -df | grep "^$filenameSoFar" | readarray -t files
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readarray -t files < <(compgen -df | grep "^$filenameSoFar")
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COMPREPLY=( "${files[@]}" )
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else
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COMPREPLY+=( $(grep -h "^$wordToComplete" -- "$HLEDGER_COMPLETION_TEMPDIR/commands.txt" "$HLEDGER_COMPLETION_TEMPDIR/generic-options.txt") )
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fi
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else
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# Almost all subcommands accept [QUERY]
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# -> always add accounts to completion list
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COMP_WORDBREAKS=' '
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COMPREPLY+=( $(hledger accounts --flat | grep "^$wordToComplete") )
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fi
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}
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# Register completion function for hledger:
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complete -F hledgerCompletionFunction hledger
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# Include lists of commands and options generated by the Makefile using the
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# m4 macro processor.
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# Included files must have exactly one newline at EOF to prevent weired errors.
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cat <<TEXT > "$HLEDGER_COMPLETION_TEMPDIR/commands.txt"
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include(`commands.txt')dnl
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TEXT
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cat <<TEXT > "$HLEDGER_COMPLETION_TEMPDIR/generic-options.txt"
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include(`generic-options.txt')dnl
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TEXT
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include(`foreach2.m4')
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foreach(`cmd', (include(`commands-list.txt')), `
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cat <<TEXT > "$HLEDGER_COMPLETION_TEMPDIR/options-cmd.txt"
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include(options-cmd.txt)dnl
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TEXT
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')
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