fix: handling of EDITOR env var (#10855)

The `ipfs config edit` command did not correctly handle the `EDITOR` environment variable correctly when its value contains flags and arguments, i.e. `EDITOR=emacs -nw`. The command was treating the entire value of `$EDITOR` as the name of the editor command. This has been fixed to parse the value of `$EDITOR` into separate args, respecting shell quoting.

Closes #9375

(cherry picked from commit 4195a1d)

Author: gammazero

core/commands/config.go

@@ -9,13 +9,13 @@ import (
 	"os/exec"
 	"strings"
 
-	"github.com/ipfs/kubo/core/commands/cmdenv"
-	"github.com/ipfs/kubo/repo"
-	"github.com/ipfs/kubo/repo/fsrepo"
-
+	"github.com/anmitsu/go-shlex"
 	"github.com/elgris/jsondiff"
 	cmds "github.com/ipfs/go-ipfs-cmds"
 	config "github.com/ipfs/kubo/config"
+	"github.com/ipfs/kubo/core/commands/cmdenv"
+	"github.com/ipfs/kubo/repo"
+	"github.com/ipfs/kubo/repo/fsrepo"
 )
 
 // ConfigUpdateOutput is config profile apply command's output
@@ -512,7 +512,14 @@ func editConfig(filename string) error {
 		return errors.New("ENV variable $EDITOR not set")
 	}
 
-	cmd := exec.Command(editor, filename)
+	editorAndArgs, err := shlex.Split(editor, true)
+	if err != nil {
+		return fmt.Errorf("cannot parse $EDITOR value: %s", err)
+	}
+	editor = editorAndArgs[0]
+	args := append(editorAndArgs[1:], filename)
+
+	cmd := exec.Command(editor, args...)
 	cmd.Stdin, cmd.Stdout, cmd.Stderr = os.Stdin, os.Stdout, os.Stderr
 	return cmd.Run()
 }

docs/changelogs/v0.36.md

@@ -21,6 +21,7 @@ This release  was brought to you by the [Interplanetary Shipyard](https://ipship
   - [Gateway now supports negative HTTP Range requests](#gateway-now-supports-negative-http-range-requests)
   - [Option for `filestore` command to remove bad blocks](#option-for-filestore-command-to-remove-bad-blocks)
   - [`ConnMgr.SilencePeriod` configuration setting exposed](#connmgrsilenceperiod-configuration-setting-exposed)
+  - [Fix handling of EDITOR env var](#fix-handling-of-editor-env-var)
   - [📦️ Important dependency updates](#-important-dependency-updates)
 - [📝 Changelog](#-changelog)
 - [👨‍👩‍👧‍👦 Contributors](#-contributors)
@@ -87,6 +88,10 @@ The [experimental `filestore`](https://github.com/ipfs/kubo/blob/master/docs/exp
 
 This connection manager option controls how often connections are swept and potentially terminated. See the [ConnMgr documentation](https://github.com/ipfs/kubo/blob/master/docs/config.md#swarmconnmgrsilenceperiod).
 
+#### Fix handling of EDITOR env var
+
+The `ipfs config edit` command did not correctly handle the `EDITOR` environment variable correctly when its value contains flags and arguments, i.e. `EDITOR=emacs -nw`. The command was treating the entire value of `$EDITOR` as the name of the editor command. This has been fixed to parse the value of `$EDITOR` into separate args, respecting shell quoting.
+
 #### 📦️ Important dependency updates
 
 - update `go-libp2p` to [v0.42.0](https://github.com/libp2p/go-libp2p/releases/tag/v0.42.0)

go.mod

@@ -5,6 +5,7 @@ go 1.24
 require (
 	bazil.org/fuse v0.0.0-20200117225306-7b5117fecadc
 	contrib.go.opencensus.io/exporter/prometheus v0.4.2
+	github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239
 	github.com/blang/semver/v4 v4.0.0
 	github.com/caddyserver/certmagic v0.21.6
 	github.com/cenkalti/backoff/v4 v4.3.0

go.sum

@@ -66,6 +66,7 @@ github.com/alecthomas/units v0.0.0-20240927000941-0f3dac36c52b h1:mimo19zliBX/vS
 github.com/alecthomas/units v0.0.0-20240927000941-0f3dac36c52b/go.mod h1:fvzegU4vN3H1qMT+8wDmzjAcDONcgo2/SZ/TyfdUOFs=
 github.com/alexbrainman/goissue34681 v0.0.0-20191006012335-3fc7a47baff5 h1:iW0a5ljuFxkLGPNem5Ui+KBjFJzKg4Fv2fnxe4dvzpM=
 github.com/alexbrainman/goissue34681 v0.0.0-20191006012335-3fc7a47baff5/go.mod h1:Y2QMoi1vgtOIfc+6DhrMOGkLoGzqSV2rKp4Sm+opsyA=
+github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239 h1:kFOfPq6dUM1hTo4JG6LR5AXSUEsOjtdm0kw0FtQtMJA=
 github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/benbjohnson/clock v1.3.5 h1:VvXlSJBzZpA/zum6Sj74hxwYI2DIxRWuNIoXAzHZz5o=
@@ -180,6 +181,7 @@ github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2
 github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
 github.com/filecoin-project/go-clock v0.1.0 h1:SFbYIM75M8NnFm1yMHhN9Ahy3W5bEZV9gd6MPfXbKVU=
 github.com/filecoin-project/go-clock v0.1.0/go.mod h1:4uB/O4PvOjlx1VCMdZ9MyDZXRm//gkj1ELEbxfI1AZs=
+github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568 h1:BHsljHzVlRcyQhjrss6TZTdY2VfCqZPbv5k3iBFa2ZQ=
 github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
 github.com/flynn/noise v1.1.0 h1:KjPQoQCEFdZDiP03phOvGi11+SVVhBG2wOWAorLsstg=
 github.com/flynn/noise v1.1.0/go.mod h1:xbMo+0i6+IGbYdJhF31t2eR1BIU0CYc12+BNAKwUTag=