This commit is contained in:
Denis Isidoro 2019-09-20 14:01:12 -03:00
parent 4c9f8ba2ff
commit 132aee10ce
16 changed files with 146 additions and 34 deletions

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Makefile Normal file
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BIN ?= navi
PREFIX ?= /usr/local
install:
scripts/symlink
uninstall:
rm -f $(PREFIX)/bin/$(BIN)

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README.md Normal file
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# navi
An interactive cheatsheet tool for the command-line so that you'll never say the following again:
*- How to run that command again?*
*- Oh, it's not in my bash history*
*- Geez, it's almost what I wanted but I need to change some args*
![Demo](https://user-images.githubusercontent.com/3226564/65281359-d158f480-db08-11e9-8e69-e380d76c343b.gif)
**navi** allows you to browse through cheatsheets (that you may write yourself or downloaded from maintainers) and execute commands, prompting for argument values.
## Installation
**Using [brew](https://brew.sh/):**
```
brew install denisidoro/tools/navi
```
**Without brew:**
```
git clone http://github.com/denisidoro/navi /opt/navi
cd /opt/navi
sudo make install
```
## Usage
Simply call `navi`
## Motivation
The main objectives are:
- to increase discoverability, by finding commands given keywords or descriptions;
- to prevent you from running auxiliar commands, copying the result into the clipboard and then pasting into the original command;
- to improve terminal usage as a whole.
Sure, you can find autocompleters out there for all your favorite commands. However, they are very specific and each one may offer a different learning curve.
Or you can launch and browser and search for instructions on Google, but that takes some time.
**navi**, on the other hand, intends to be a general purpose platform for bookmarking any command at a very low cost.
## .cheat syntax
- lines starting with `%` should contain tags which will be added to any command in a given file;
- lines starting with `#` should be descriptions of commands;
- lines starting with `$` should contain commands that generate suggestion values for a given argument;
- all the other non-empty lines are considered as executable commands.
For example, this is a valid `.cheat` file:
```sh
% git, code
# Change branch
git checkout <branch>
$ branch: git branch --format='%(refname:short)'
```
For advanced usage, please refer to the files in [/cheats](https://github.com/denisidoro/navi/tree/master/cheats).
## Alternatives
- [denisidoro/beavr](https://github.com/denisidoro/beavr);
- [how2](https://github.com/santinic/how2);
- [howdoi](https://github.com/gleitz/howdoi);
- [cheat](https://github.com/cheat/cheat).
## Etymology
In [The Legend of Zelda Ocarina of Time](https://zelda.gamepedia.com/Ocarina_of_Time), [navi](https://zelda.gamepedia.com/Navi) is a character that provides [Link](https://zelda.gamepedia.com/Link) with a variety of clues to help him solve puzzles and progress in his quest.

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cheats
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#!/usr/bin/env bash
set -euo pipefail
export DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null && pwd)"
source "${DIR}/src/arg.sh"
source "${DIR}/src/cheat.sh"
source "${DIR}/src/docs.sh"
source "${DIR}/src/misc.sh"
source "${DIR}/src/selection.sh"
source "${DIR}/src/str.sh"
source "${DIR}/src/ui.sh"
source "${DIR}/src/main.sh"
##? Command cheatsheet tool
##?
##? Usage:
##? cheats [options]
##?
##? Options:
##? --print Prevent script execution [default: false]
##? --no-interpolation Prevent argument interpolation [default: false]
##? -c --cheat-folder <cheat-folder> Folder with cheatsheets
docs::eval "$@"
main "$@"

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navi Executable file
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#!/usr/bin/env bash
set -euo pipefail
export SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
source "${SCRIPT_DIR}/src/arg.sh"
source "${SCRIPT_DIR}/src/cheat.sh"
source "${SCRIPT_DIR}/src/docs.sh"
source "${SCRIPT_DIR}/src/misc.sh"
source "${SCRIPT_DIR}/src/selection.sh"
source "${SCRIPT_DIR}/src/str.sh"
source "${SCRIPT_DIR}/src/ui.sh"
source "${SCRIPT_DIR}/src/main.sh"
##? Command cheatsheet tool
##?
##? Usage:
##? cheats [options]
##?
##? Options:
##? --print Prevent script execution [default: false]
##? --no-interpolation Prevent argument interpolation [default: false]
VERSION="0.3.0"
docs::eval "$@"
main "$@"

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scripts/symlink Executable file
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#!/usr/bin/env bash
set -euo pipefail
export SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
script() {
echo "#!/usr/bin/env bash"
echo "${SCRIPT_DIR}/navi" '$@'
}
BIN="/usr/local/bin/navi"
script > "$BIN"
chmod +x "$BIN"

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#!/usr/bin/env bash
cheat::find() {
find "${cheat_folder:-"${DIR}/sheets"}" -iname '*.cheat'
find "${cheat_dir:-"${SCRIPT_DIR}/cheats"}" -iname '*.cheat'
}
cheat::read_many() {

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#!/usr/bin/env bash
set -euo pipefail
docs::eval() {
print=false
no_interpolation=false
cheat_folder=""
docs::extract_help() {
local readonly file="$1"
grep "^##?" "$file" | cut -c 5-
}
docs::eval() {
local wait_for=""
print=false
interpolation=true
for arg in $@; do
case $arg in
--print) print=true;;
--no-interpolation) interpolation=false;;
--version) echo "${VERSION:-unknown}" && exit 0;;
--help) docs::extract_help "$0" && exit 0;;
-d|--dir) wait_for="dir";;
esac
case $wait_for in
dir) cheat_dir="$arg"; wait_for="";;
esac
done
}

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@ -8,7 +8,7 @@ main() {
local cmd="$(selection::command "$selection" "$cheat")"
local arg value
if $no_interpolation; then
if ! $interpolation; then
echo "$cmd"
exit 0
fi