motiejus/undocker
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cmdline quoting

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This commit is contained in:
Motiejus Jakštys 2021-05-24 00:11:58 +03:00
parent 76ab2a9c82
commit 46aed94077
2 changed files with 17 additions and 4 deletions
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19
lxcconfig/lxcconfig.go
View File

@ -73,9 +73,10 @@ func LXCConfig(rd io.ReadSeeker, wr io.Writer) error {
}
func docker2lxc(d dockerConfig) lxcConfig {
// cmd/entrypoint logic is copied from lxc-oci template
ep := strings.Join(d.Config.Entrypoint, " ")
cmd := strings.Join(d.Config.Cmd, " ")
// cmd/entrypoint logic is copied from lxc-oci template and adopted
// for simple double-argument quoting.
ep := quoted(d.Config.Entrypoint)
cmd := quoted(d.Config.Cmd)
if len(ep) == 0 {
ep = cmd
if len(ep) == 0 {
@ -154,3 +155,15 @@ func parseJSON(rd io.ReadSeeker, offsets map[string]offsetSize, fname string, c
}
return nil
}
func quoted(cmds []string) string {
ret := make([]string, len(cmds))
for i, cmd := range cmds {
if cmd == "" || strings.ContainsRune(cmd, ' ') {
ret[i] = `"` + cmd + `"`
} else {
ret[i] = cmd
}
}
return strings.Join(ret, " ")
}

2
lxcconfig/lxcconfig_test.go
View File

@ -48,7 +48,7 @@ func TestLXCConfig(t *testing.T) {
want: strings.Join([]string{
`lxc.include = LXC_TEMPLATE_CONFIG/common.conf`,
`lxc.architecture = amd64`,
`lxc.execute.cmd = '/entrypoint.sh /bin/sh -c echo foo'`,
`lxc.execute.cmd = '/entrypoint.sh /bin/sh -c "echo foo"'`,
`lxc.init.cwd = /x`,
`lxc.environment = LONGNAME="Foo Bar"`,
`lxc.environment = SHELL=/bin/tcsh`,