mirror of
https://github.com/webinstall/webi-installers.git
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refactor!: rename git-gpg-init => git-config-gpg
This commit is contained in:
AJ ONeal
@@ -1,192 +0,0 @@
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---
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title: git-gpg-init
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homepage: https://webinstall.dev/git-gpg-init
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tagline: |
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Get your GnuPG Public Key.
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---
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## Cheat Sheet
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> Although the latest git release allows you to sign with SSH Keys (and GitHub
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> will implement this shortly if it hasn't already), most systems do not have
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> the latest git release, and most verification systems are not updated with the
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> newest verification techniques, so you may wish to sign your commits with GPG,
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> as has been done for the last 20 years...
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Here we'll cover
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- How to [add a GPG key to Github](https://github.com/settings/gpg/new)
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- How to cache the passphrase longer
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- How to [create a GPG key](./gpg-pubkey)
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- How to configure git with GPG signing
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- Troubleshooting 'gpg failed to sign the data'
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Usage:
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```bash
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git-gpg-init
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```
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Example output:
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```txt
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GnuPG Public Key ID: CA025BC42F00BBBE
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-----BEGIN PGP PUBLIC KEY BLOCK-----
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mQGNBGGQtKIBDAChxTT375fetQawLkyyDcz07uIEZVa9pvuip8goMqev7PkOIHi+
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j6PDtFmxgv8ZOFe8+1RfMC7eL5fYah0/OBxNm7pPvAPDWOX38FfUzoq9CALW2xPD
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...
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Yee+eokiC2mWIEkMwbqlnNmkX/wphS0zcCsEiHirmDxgY6YY9QRjlzUMY68OqjfJ
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IFjFWv3R7eckM957wyR5BvdQNfGrW7cWefWhdZOzLEE7
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=GXEK
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-----END PGP PUBLIC KEY BLOCK-----
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Successfully updated ~/.gitconfig for gpg commit signing
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How to verify signed commits on GitHub:
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1. Go to 'Add GPG Key': https://github.com/settings/gpg/new
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2. Copy and paste the key above from the first ---- to the last ----
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```
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### Files
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These are the files / directories that are created and/or modified with this
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install:
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```txt
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~/.config/envman/PATH.env
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~/.local/bin/git-gpg-init
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~/Downloads/YOU.KEY_ID.gpg.asc
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```
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### How to add your GPG Public Key to GitHub
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1. Go to your GitHub Profile (<https://github.com/settings/profile>)
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2. Go to the SSH and GPG Keys (<https://github.com/settings/keys>)
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3. Add GPG Key (<https://github.com/settings/gpg/new>)
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4. Paste the output of `gpg-pubkey` into the form
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### How to cache the Passphrase longer
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If you'd like the passphrase to be cached until your login session ends, just
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set it to 400 days and call it good.
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`~/.gnupg/gpg-agent.conf`:
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```txt
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default-cache-ttl 34560000
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max-cache-ttl 34560000
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```
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You'll need to reload `gpg-agent` for this to take effect, or just logout and
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login again.
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```bash
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# kill gpg-agent dead
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killall gpg-agent
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gpgconf killall gpg-agent
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# start gpg-agent again (yes, 'bye' to start)
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gpg-connect-agent --agent-program ~/.local/opt/gnupg/bin/gpg-agent /bye
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```
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Note: You may need to change or omit `--agent-program`, depending on how you
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installed `gpg` (if you installed it with Webi, run it as shown above).
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### How to create a GPG Key
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See:
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- [gpg-pubkey](./gpg-pubkey)
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- and [gpg](./gpg), if you want to do it "the hard way"
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### How to manually set up git commit gpg signing
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(this is what `git-gpg-init` does)
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Run [gpg-pubkey-id](./gpg-pubkey) to get your GnuPG Public Key ID and then
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update your `~/.gitconfig` to sign with it by default:
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```bash
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#!/bin/bash
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MY_KEY_ID="$(
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gpg-pubkey-id
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)"
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git config --global user.signingkey "${MY_KEY_ID}"
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git config --global commit.gpgsign true
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git config --global log.showSignature true
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```
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Or, for Windows users:
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```bash
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#!/usr/bin/env pwsh
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$my_key_id = gpg-pubkey-id
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git config --global user.signingkey "$my_key_id"
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git config --global commit.gpgsign true
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git config --global log.showSignature true
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```
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Or, if you prefer to edit the text file directly:
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`~/.gitconfig`
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```txt
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[user]
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signingkey = CA025BC42F00BBBE
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[commit]
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gpgsign = true
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[log]
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showSignature = true
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```
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In some cases you may also want to prevent conflicts between different installed
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versions of gpg, like so:
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```bash
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git config --global gpg.program ~/.local/opt/gnupg/bin/gpg
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```
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```txt
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[gpg]
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program = /Users/me/.local/opt/gnupg/bin/gpg
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```
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### Troubleshooting 'gpg failed to sign the data'
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`gpg` is generally expected to be used with a Desktop client. On Linux servers
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you may get this error:
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```txt
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error: gpg failed to sign the data
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fatal: failed to write commit object
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```
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Try to load the `gpg-agent`, set `GPG_TTY`, and then run a clearsign test.
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```bash
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gpg-connect-agent /bye
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export GPG_TTY=$(tty)
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echo "test" | gpg --clearsign
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```
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If that works, update your `~/.bashrc`, `~/.zshrc`, and/or
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`~/.config/fish/config.fish` to include the following:
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```bash
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gpg-connect-agent /bye
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export GPG_TTY=$(tty)
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```
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If this is failing on Mac or Windows, then `gpg-agent` is not starting as
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expected on login (for Mac the above may work), and/or the `pinentry` command is
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not in the PATH.
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If you just installed `gpg`, try closing and reopening your Terminal, or
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possibly rebooting.
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@@ -1,36 +0,0 @@
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#!/bin/bash
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set -e
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set -u
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export PATH="$HOME/.local/opt/gnupg/bin:$PATH"
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export PATH="$HOME/.local/opt/gnupg/bin/pinentry-mac.app/Contents/MacOS:$PATH"
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# TODO check for public key without gpg-pubkey?
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if ! command -v gpg-pubkey; then
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webi gpg-pubkey
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else
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gpg-pubkey
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fi
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MY_KEY_ID="$(
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gpg-pubkey-id
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)"
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echo -n "Enabling automatic git commit signing...
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git config --global user.signingkey ${MY_KEY_ID}
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git config --global commit.gpgsign true
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git config --global log.showSignature true
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"
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git config --global user.signingkey "${MY_KEY_ID}"
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git config --global commit.gpgsign true
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git config --global log.showSignature true
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echo ""
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echo "Successfully updated ~/.gitconfig"
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echo ""
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echo "How to verify signed commits on GitHub:"
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echo ""
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echo " 1. Go to 'Add GPG Key': https://github.com/settings/gpg/new"
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echo " 2. Copy and paste the key above from the first ---- to the last ----"
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echo ""
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@@ -1,34 +0,0 @@
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#!/bin/bash
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set -e
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set -u
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function __install_git_gpg_init() {
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MY_CMD="git-gpg-init"
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rm -f "$HOME/.local/bin/$MY_CMD"
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webi_download "$WEBI_HOST/packages/$MY_CMD/$MY_CMD.sh" "$HOME/.local/bin/$MY_CMD"
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chmod a+x "$HOME/.local/bin/$MY_CMD"
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}
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function __check_gpg_pubkey_exists() {
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if ! command -v gpg; then
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webi gpg-pubkey
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export PATH="$HOME/.local/opt/gnupg/bin:$PATH"
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export PATH="$HOME/.local/opt/gnupg/bin/pinentry-mac.app/Contents/MacOS:$PATH"
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fi
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}
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function __check_gpg_exists() {
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if ! command -v gpg; then
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webi gpg
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export PATH="$HOME/.local/opt/gnupg/bin:$PATH"
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export PATH="$HOME/.local/opt/gnupg/bin/pinentry-mac.app/Contents/MacOS:$PATH"
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fi
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}
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__install_git_gpg_init
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__check_gpg_pubkey_exists
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__check_gpg_exists
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# run the command
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"$HOME/.local/bin/$MY_CMD"
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