mirror of https://github.com/hashicorp/packer
Merge pull request #8208 from psinghal20/conventional-format-isotime
feat: add strftime function in templatespull/8223/head
Megan Marsh
7 years ago
committed by
GitHub
commit
90573a97dd
@ -0,0 +1,22 @@
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# Compiled Object files, Static and Dynamic libs (Shared Objects)
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*.o
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*.a
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*.so
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# Folders
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_obj
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_test
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# Architecture specific extensions/prefixes
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*.[568vq]
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[568vq].out
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*.cgo1.go
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*.cgo2.c
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_cgo_defun.c
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_cgo_gotypes.go
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_cgo_export.*
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_testmain.go
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*.exe
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@ -0,0 +1,19 @@
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Copyright (c) 2012 Jehiah Czebotar
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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go-strftime
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===========
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go implementation of strftime
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## Example
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```
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package main
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import (
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"fmt"
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"time"
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strftime "github.com/jehiah/go-strftime"
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)
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func main() {
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t := time.Unix(1340244776, 0)
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utc, _ := time.LoadLocation("UTC")
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t = t.In(utc)
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fmt.Println(strftime.Format("%Y-%m-%d %H:%M:%S", t))
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// Output:
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// 2012-06-21 02:12:56
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}
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```
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@ -0,0 +1,72 @@
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// go implementation of strftime
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package strftime
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import (
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"strings"
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"time"
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)
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// taken from time/format.go
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var conversion = map[rune]string{
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/*stdLongMonth */ 'B': "January",
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/*stdMonth */ 'b': "Jan",
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// stdNumMonth */ 'm': "1",
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/*stdZeroMonth */ 'm': "01",
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/*stdLongWeekDay */ 'A': "Monday",
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/*stdWeekDay */ 'a': "Mon",
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// stdDay */ 'd': "2",
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// stdUnderDay */ 'd': "_2",
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/*stdZeroDay */ 'd': "02",
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/*stdHour */ 'H': "15",
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// stdHour12 */ 'I': "3",
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/*stdZeroHour12 */ 'I': "03",
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// stdMinute */ 'M': "4",
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/*stdZeroMinute */ 'M': "04",
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// stdSecond */ 'S': "5",
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/*stdZeroSecond */ 'S': "05",
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/*stdLongYear */ 'Y': "2006",
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/*stdYear */ 'y': "06",
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/*stdPM */ 'p': "PM",
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// stdpm */ 'p': "pm",
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/*stdTZ */ 'Z': "MST",
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// stdISO8601TZ */ 'z': "Z0700", // prints Z for UTC
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// stdISO8601ColonTZ */ 'z': "Z07:00", // prints Z for UTC
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/*stdNumTZ */ 'z': "-0700", // always numeric
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// stdNumShortTZ */ 'b': "-07", // always numeric
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// stdNumColonTZ */ 'b': "-07:00", // always numeric
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/* nonStdMilli */ 'L': ".000",
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}
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// This is an alternative to time.Format because no one knows
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// what date 040305 is supposed to create when used as a 'layout' string
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// this takes standard strftime format options. For a complete list
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// of format options see http://strftime.org/
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func Format(format string, t time.Time) string {
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retval := make([]byte, 0, len(format))
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for i, ni := 0, 0; i < len(format); i = ni + 2 {
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ni = strings.IndexByte(format[i:], '%')
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if ni < 0 {
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ni = len(format)
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} else {
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ni += i
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}
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retval = append(retval, []byte(format[i:ni])...)
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if ni+1 < len(format) {
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c := format[ni+1]
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if c == '%' {
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retval = append(retval, '%')
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} else {
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if layoutCmd, ok := conversion[rune(c)]; ok {
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retval = append(retval, []byte(t.Format(layoutCmd))...)
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} else {
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retval = append(retval, '%', c)
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}
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}
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} else {
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if ni < len(format) {
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retval = append(retval, '%')
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}
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}
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}
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return string(retval)
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}
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