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path: root/src/cmd/pack/pack.go
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2020-12-22cmd/pack: r command create output file if not existCherry Zhang
Go 1.15 pack's r command creates the output file if it does not exist. The system "ar" command does this as well. Do the same. For bazelbuild/rules_go#2762. Change-Id: Icd88396b5c714b735c859a29ab29851e4301f4d2 Reviewed-on: https://go-review.googlesource.com/c/go/+/279516 Trust: Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> Reviewed-by: Than McIntosh <thanm@google.com> TryBot-Result: Go Bot <gobot@golang.org>
2020-12-22cmd/pack: treat compiler's -linkobj output as "compiler object"Cherry Zhang
Treat the compiler's -linkobj output as "compiler object, which means "pack c" will "see through" the file and add individual entry to the new archive, instead of the object as a whole. This is somewhat peculiar. But Go 1.15's cmd/pack does this, although seemingly accidental. We just do the same. FWIW, it does make things more consistent with/without -linkobj flag. Fixes #43271. Change-Id: I6b2d99256db7ebf0fa430f85afa7464e334f6bcb Reviewed-on: https://go-review.googlesource.com/c/go/+/279483 Trust: Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> Reviewed-by: Jeremy Faller <jeremy@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
2020-10-20all: update references to symbols moved from os to io/fsRuss Cox
The old os references are still valid, but update our code to reflect best practices and get used to the new locations. Code compiled with the bootstrap toolchain (cmd/asm, cmd/dist, cmd/compile, debug/elf) must remain Go 1.4-compatible and is excluded. For #41190. Change-Id: I8f9526977867c10a221e2f392f78d7dec073f1bd Reviewed-on: https://go-review.googlesource.com/c/go/+/243907 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Rob Pike <r@golang.org>
2020-08-11[dev.link] cmd/pack: use cmd/internal/archive packageCherry Zhang
Rewrite part of cmd/pack to use the cmd/internal/archive package. Change-Id: Ia7688810d3ea4d0277056870091f59cf09cffcad Reviewed-on: https://go-review.googlesource.com/c/go/+/247917 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
2018-04-02cmd: remove some unused parametersDaniel Martí
Change-Id: I9d2a4b8df324897e264d30801e95ddc0f0e75f3a Reviewed-on: https://go-review.googlesource.com/102337 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ilya Tocar <ilya.tocar@intel.com>
2018-03-24cmd/compile: always write pack filesMatthew Dempsky
By always writing out pack files, the object file format can be simplified somewhat. In particular, the export data format will no longer require escaping, because the pack file provides appropriate framing. This CL does not affect build systems that use -pack, which includes all major Go build systems (cmd/go, gb, bazel). Also, existing package import logic already distinguishes pack/object files based on file contents rather than file extension. The only exception is cmd/pack, which specially handled object files created by cmd/compile when used with the 'c' mode. This mode is extended to now recognize the pack files produced by cmd/compile and handle them as before. Passes toolstash-check. Updates #21705. Updates #24512. Change-Id: Idf131013bfebd73a5cde7e087eb19964503a9422 Reviewed-on: https://go-review.googlesource.com/102236 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-09-09cmd/pack: fix export data truncation bugMatthew Dempsky
The binary export data format includes escaping to prevent "\n$$" from appearing internally, but not "\n!\n". This could result in a false positive when cmd/pack searched for "\n!\n" as the delimiter between package definition and linker object. To address this, this CL changes cmd/pack to also be aware of the "\n$$" markers, and to ignore "\n!\n" within the export data. Fixes #21703. Change-Id: I71ea8ba49dbd066c7afb7717ddc0190e38fe5649 Reviewed-on: https://go-review.googlesource.com/60773 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-05-06all: use SeekStart, SeekCurrent, SeekEndJoe Tsai
CL/19862 (f79b50b8d5bc159561c1dcf7c17e2a0db96a9a11) recently introduced the constants SeekStart, SeekCurrent, and SeekEnd to the io package. We should use these constants consistently throughout the code base. Updates #15269 Change-Id: If7fcaca7676e4a51f588528f5ced28220d9639a2 Reviewed-on: https://go-review.googlesource.com/22097 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Joe Tsai <joetsai@digital-static.net> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-03-17cmd/pack,vet: use `go doc` instead of `godoc` in docHyang-Ah Hana Kim
Change-Id: Ic5f62a7d0a5c090da69213d1d0187af0ea48e358 Reviewed-on: https://go-review.googlesource.com/20820 Reviewed-by: Rob Pike <r@golang.org>
2014-12-28cmd/pack: address go vet reportsEmil Hessman
Use log.Fatalf for formatting directives instead of log.Fatal Change-Id: Ia207b320f5795c63cdfa71f92c19ca6d05cc833f Reviewed-on: https://go-review.googlesource.com/2160 Reviewed-by: Minux Ma <minux@golang.org>
2014-09-23cmd/pack: fix c command for existing fileRob Pike
There were at least two bugs: 1) It would overwrite a non-archive. 2) It would truncate a non-archive and then fail. In general the file handling was too clever to be correct. Make it more straightforward, doing the creation separately from archive management. Fixes #8369. LGTM=adg, iant R=golang-codereviews, adg, iant CC=golang-codereviews https://golang.org/cl/147010046
2014-04-17cmd/pack: handle very long lines in pkgdefIan Lance Taylor
LGTM=rsc, bradfitz R=golang-codereviews, rsc, bradfitz CC=golang-codereviews https://golang.org/cl/88170049
2014-04-15cmd/pack: print error along with usageRuss Cox
My cmd/go got in a weird state where it started invoking pack grcP. Change pack to print a 1-line explanation of the usage problem before the generic usage message. LGTM=r R=r CC=golang-codereviews https://golang.org/cl/87770047
2014-04-03cmd/pack: fix format string error in log messageDave Cheney
Fixes #7693. pack.go:347: possible formatting directive in Fatal call LGTM=iant R=golang-codereviews, iant CC=golang-codereviews https://golang.org/cl/83310045
2014-02-20cmd/pack: fix matchRuss Cox
Match used len(ar.files) == 0 to mean "match everything" but it also deleted matched things from the list, so once you had matched everything you asked for, match returned true for whatever was left in the archive too. Concretely, if you have an archive containing f1, f2, then pack t foo.a f1 would match f1 and then, because len(ar.files) == 0 after deleting f1 from the match list, also match f2. Avoid the problem by recording explicitly whether match matches everything. LGTM=r, dsymonds R=r, dsymonds CC=golang-codereviews https://golang.org/cl/65630046
2014-02-19cmd/pack: add 'c' command to create archiveRuss Cox
When Go 1.3 is released, this will keep existing Go 1.2 build scripts that use 'go tool pack grc' working. For efficiency, such scripts should be changed to use 6g -pack instead, but keeping the old behavior available enables a more graceful transition. LGTM=r R=r CC=golang-codereviews https://golang.org/cl/66130043
2014-02-19cmd/pack: use log.SetPrefix to make log calls more compact and consistentRob Pike
Taking my own advice from a review of addr2line. LGTM=rsc R=rsc CC=golang-codereviews https://golang.org/cl/65950044
2014-01-15cmd/pack: rewrite in GoRob Pike
Replace the pack command, a C program, with a clean reimplementation in Go. It does not need to reproduce the full feature set and it is no longer used by the build chain, but has a role in looking inside archives created by the build chain directly. Since it's not in C, it is no longer build by dist, so remove it from cmd/dist and make it a "tool" in cmd/go terminology. Fixes #2705 R=rsc, dave, minux.ma, josharian CC=golang-codereviews https://golang.org/cl/52310044
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