dotfiles

Commit: 9c423d75c6d43f2324e8a190348b089c7a959ba7
Parent: 20a3f6cd831aff55ec1ef1a27333912d618d531e
Author: Randy Palamar
Date:   Wed,  4 Jan 2023 20:54:30 -0700

vis: seamlessly edit gpg encrypted files

Diffstat:
A
.config/vis/gpg.lua
 | 
55
+++++++++++++++++++++++++++++++++++++++++++++++++++++++
M
.config/vis/visrc.lua
 | 
1
+

2 files changed, 56 insertions(+), 0 deletions(-)
diff --git a/.config/vis/gpg.lua b/.config/vis/gpg.lua
@@ -0,0 +1,55 @@
+require('util')
+
+gpg = { key = 0 }
+
+local function decrypt(file)
+	local f, e = util:splitext(file.name)
+	if e ~= '.gpg' then return end
+
+	local err, ostr, estr = vis:pipe(file, {start = 0, finish = file.size}, "gpg -d")
+	if err ~= 0 then return false end
+
+	local i = string.find(estr, "ID")
+	local j = string.find(estr, ",", i)
+	local keyid = string.sub(estr, i+3, j-1)
+	if keyid ~= gpg.key then
+		vis:info(estr)
+		gpg.key = keyid
+	end
+
+	file:delete(0, file.size)
+	file:insert(0, ostr)
+	file.modified = false
+	return true
+end
+vis.events.subscribe(vis.events.FILE_OPEN, decrypt)
+vis.events.subscribe(vis.events.FILE_SAVE_POST, decrypt)
+
+local function encrypt(file, path)
+	local f, e = util:splitext(file.name)
+	if e ~= '.gpg' then return end
+
+	if gpg.key == 0 then
+		vis:info('encrypt: keyid not found. file not saved.')
+		return false
+	end
+
+	local tfn = os.tmpname()
+	local cmd = "gpg --yes -o " .. tfn .. " -e -r " .. gpg.key
+	local err, ostr, estr = vis:pipe(file, {start = 0, finish = file.size}, cmd)
+	if err ~= 0 then
+		if estr then
+			vis:message(estr)
+		end
+		return false
+	end
+
+	local tf = io.open(tfn, 'rb')
+	file:delete(0, file.size)
+	file:insert(0, tf:read("a"))
+	tf:close()
+	os.remove(tfn)
+
+	return true
+end
+vis.events.subscribe(vis.events.FILE_SAVE_PRE, encrypt)
diff --git a/.config/vis/visrc.lua b/.config/vis/visrc.lua
@@ -2,6 +2,7 @@ require('vis')
 require('util')
 require('build')
 require('macros')
+require('gpg')
 
 spell = require('plugins/vis-spellcheck')
 spell.lang = "en_US"