diff options
| -rw-r--r-- | doc/stdenv/stdenv.xml | 7 | ||||
| -rw-r--r-- | pkgs/build-support/setup-hooks/install-shell-files.sh | 121 |
2 files changed, 99 insertions, 29 deletions
diff --git a/doc/stdenv/stdenv.xml b/doc/stdenv/stdenv.xml index 4c069b57edd..46ee97927ea 100644 --- a/doc/stdenv/stdenv.xml +++ b/doc/stdenv/stdenv.xml @@ -2070,7 +2070,7 @@ nativeBuildInputs = [ breakpointHook ]; The <literal>installManPage</literal> function takes one or more paths to manpages to install. The manpages must have a section suffix, and may optionally be compressed (with <literal>.gz</literal> suffix). This function will place them into the correct directory. </para> <para> - The <literal>installShellCompletion</literal> function takes one or more paths to shell completion files. By default it will autodetect the shell type from the completion file extension, but you may also specify it by passing one of <literal>--bash</literal>, <literal>--fish</literal>, or <literal>--zsh</literal>. These flags apply to all paths listed after them (up until another shell flag is given). Each path may also have a custom installation name provided by providing a flag <literal>--name NAME</literal> before the path. If this flag is not provided, zsh completions will be renamed automatically such that <literal>foobar.zsh</literal> becomes <literal>_foobar</literal>. + The <literal>installShellCompletion</literal> function takes one or more paths to shell completion files. By default it will autodetect the shell type from the completion file extension, but you may also specify it by passing one of <literal>--bash</literal>, <literal>--fish</literal>, or <literal>--zsh</literal>. These flags apply to all paths listed after them (up until another shell flag is given). Each path may also have a custom installation name provided by providing a flag <literal>--name NAME</literal> before the path. If this flag is not provided, zsh completions will be renamed automatically such that <literal>foobar.zsh</literal> becomes <literal>_foobar</literal>. A root name may be provided for all paths using the flag <literal>--cmd NAME</literal>; this synthesizes the appropriate name depending on the shell (e.g. <literal>--cmd foo</literal> will synthesize the name <literal>foo.bash</literal> for bash and <literal>_foo</literal> for zsh). The path may also be a fifo or named fd (such as produced by <literal><(cmd)</literal>), in which case the shell and name must be provided. <programlisting> nativeBuildInputs = [ installShellFiles ]; postInstall = '' @@ -2081,6 +2081,11 @@ postInstall = '' installShellCompletion --zsh --name _foobar share/completions.zsh # implicit behavior installShellCompletion share/completions/foobar.{bash,fish,zsh} + # using named fd + installShellCompletion --cmd foobar \ + --bash <($out/bin/foobar --bash-completion) \ + --fish <($out/bin/foobar --fish-completion) \ + --zsh <($out/bin/foobar --zsh-completion) ''; </programlisting> </para> diff --git a/pkgs/build-support/setup-hooks/install-shell-files.sh b/pkgs/build-support/setup-hooks/install-shell-files.sh index e0ea1f7f30a..434c07a59eb 100644 --- a/pkgs/build-support/setup-hooks/install-shell-files.sh +++ b/pkgs/build-support/setup-hooks/install-shell-files.sh @@ -1,4 +1,4 @@ -#!/bin/bash +# shellcheck shell=bash # Setup hook for the `installShellFiles` package. # # Example usage in a derivation: @@ -49,7 +49,7 @@ installManPage() { done } -# installShellCompletion [--bash|--fish|--zsh] ([--name <name>] <path>)... +# installShellCompletion [--cmd <name>] ([--bash|--fish|--zsh] [--name <name>] <path>)... # # Each path is installed into the appropriate directory for shell completions for the given shell. # If one of `--bash`, `--fish`, or `--zsh` is given the path is assumed to belong to that shell. @@ -61,9 +61,20 @@ installManPage() { # If the shell completion needs to be renamed before installing the optional `--name <name>` flag # may be given. Any name provided with this flag only applies to the next path. # +# If all shell completions need to be renamed before installing the optional `--cmd <name>` flag +# may be given. This will synthesize a name for each file, unless overridden with an explicit +# `--name` flag. For example, `--cmd foobar` will synthesize the name `_foobar` for zsh and +# `foobar.bash` for bash. +# # For zsh completions, if the `--name` flag is not given, the path will be automatically renamed # such that `foobar.zsh` becomes `_foobar`. # +# A path may be a named fd, such as produced by the bash construct `<(cmd)`. When using a named fd, +# the shell type flag must be provided, and either the `--name` or `--cmd` flag must be provided. +# This might look something like: +# +# installShellCompletion --zsh --name _foobar <($out/bin/foobar --zsh-completion) +# # This command accepts multiple shell flags in conjunction with multiple paths if you wish to # install them all in one command: # @@ -76,9 +87,16 @@ installManPage() { # installShellCompletion --fish --name foobar.fish share/completions.fish # installShellCompletion --zsh --name _foobar share/completions.zsh # +# Or to use shell newline escaping to split a single invocation across multiple lines: +# +# installShellCompletion --cmd foobar \ +# --bash <($out/bin/foobar --bash-completion) \ +# --fish <($out/bin/foobar --fish-completion) \ +# --zsh <($out/bin/foobar --zsh-completion) +# # If any argument is `--` the remaining arguments will be treated as paths. installShellCompletion() { - local shell='' name='' retval=0 parseArgs=1 arg + local shell='' name='' cmdname='' retval=0 parseArgs=1 arg while { arg=$1; shift; }; do # Parse arguments if (( parseArgs )); then @@ -97,6 +115,17 @@ installShellCompletion() { # treat `--name=foo` the same as `--name foo` name=${arg#--name=} continue;; + --cmd) + cmdname=$1 + shift || { + echo 'installShellCompletion: error: --cmd flag expected an argument' >&2 + return 1 + } + continue;; + --cmd=*) + # treat `--cmd=foo` the same as `--cmd foo` + cmdname=${arg#--cmd=} + continue;; --?*) echo "installShellCompletion: warning: unknown flag ${arg%%=*}" >&2 retval=2 @@ -110,39 +139,67 @@ installShellCompletion() { if (( "${NIX_DEBUG:-0}" >= 1 )); then echo "installShellCompletion: installing $arg${name:+ as $name}" fi - # if we get here, this is a path - # Identify shell - local basename - basename=$(stripHash "$arg") + # if we get here, this is a path or named pipe + # Identify shell and output name local curShell=$shell - if [[ -z "$curShell" ]]; then - # auto-detect the shell - case "$basename" in - ?*.bash) curShell=bash;; - ?*.fish) curShell=fish;; - ?*.zsh) curShell=zsh;; + local outName='' + if [[ -z "$arg" ]]; then + echo "installShellCompletion: error: empty path is not allowed" >&2 + return 1 + elif [[ -p "$arg" ]]; then + # this is a named fd or fifo + if [[ -z "$curShell" ]]; then + echo "installShellCompletion: error: named pipe requires one of --bash, --fish, or --zsh" >&2 + return 1 + elif [[ -z "$name" && -z "$cmdname" ]]; then + echo "installShellCompletion: error: named pipe requires one of --cmd or --name" >&2 + return 1 + fi + else + # this is a path + local argbase + argbase=$(stripHash "$arg") + if [[ -z "$curShell" ]]; then + # auto-detect the shell + case "$argbase" in + ?*.bash) curShell=bash;; + ?*.fish) curShell=fish;; + ?*.zsh) curShell=zsh;; + *) + if [[ "$argbase" = _* && "$argbase" != *.* ]]; then + # probably zsh + echo "installShellCompletion: warning: assuming path \`$arg' is zsh; please specify with --zsh" >&2 + curShell=zsh + else + echo "installShellCompletion: warning: unknown shell for path: $arg" >&2 + retval=2 + continue + fi;; + esac + fi + outName=$argbase + fi + # Identify output path + if [[ -n "$name" ]]; then + outName=$name + elif [[ -n "$cmdname" ]]; then + case "$curShell" in + bash|fish) outName=$cmdname.$curShell;; + zsh) outName=_$cmdname;; *) - if [[ "$basename" = _* && "$basename" != *.* ]]; then - # probably zsh - echo "installShellCompletion: warning: assuming path \`$arg' is zsh; please specify with --zsh" >&2 - curShell=zsh - else - echo "installShellCompletion: warning: unknown shell for path: $arg" >&2 - retval=2 - continue - fi;; + # Our list of shells is out of sync with the flags we accept or extensions we detect. + echo 'installShellCompletion: internal error' >&2 + return 1;; esac fi - # Identify output path - local outName sharePath - outName=${name:-$basename} + local sharePath case "$curShell" in bash) sharePath=bash-completion/completions;; fish) sharePath=fish/vendor_completions.d;; zsh) sharePath=zsh/site-functions # only apply automatic renaming if we didn't have a manual rename - if test -z "$name"; then + if [[ -z "$name" && -z "$cmdname" ]]; then # convert a name like `foo.zsh` into `_foo` outName=${outName%.zsh} outName=_${outName#_} @@ -153,8 +210,16 @@ installShellCompletion() { return 1;; esac # Install file - install -Dm644 -T "$arg" "${!outputBin:?}/share/$sharePath/$outName" || return - # Clear the name, it only applies to one path + local outDir="${!outputBin:?}/share/$sharePath" + local outPath="$outDir/$outName" + if [[ -p "$arg" ]]; then + # install handles named pipes on NixOS but not on macOS + mkdir -p "$outDir" \ + && cat "$arg" > "$outPath" + else + install -Dm644 -T "$arg" "$outPath" + fi || return + # Clear the per-path flags name= done if [[ -n "$name" ]]; then |