systemd/tools/meson-vcs-tag.sh

#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later

set -eu
set -o pipefail

dir="${1:?}"
fallback="${2:?}"

# Apparently git describe has a bug where it always considers the work-tree
# dirty when invoked with --git-dir (even though 'git status' is happy). Work
# around this issue by cd-ing to the source directory.
cd "$dir"
# Check that we have either .git/ (a normal clone) or a .git file (a work-tree)
# and that we don't get confused if a tarball is extracted in a higher-level
# git repository.
[ -e .git ] && \
    git describe --abbrev=7 --dirty=^ 2>/dev/null | sed 's/^v//; s/-rc/~rc/' || \
    echo "$fallback"
treewide: more portable bash shebangs As in 2a5fcfae024ffc370bb780572279f45a1da3f946 and in 3e67e5c9928f8b1e1c5a63def88d53ed1fed12eb using /usr/bin/env allows bash to be looked up in PATH rather than being hard-coded. As with the previous changes the same arguments apply - distributions have scripts to rewrite shebangs on installation and they know what locations to rely on. - For tests/compilation we should rather rely on the user to have setup there PATH correctly. In particular this makes testing from git easier on NixOS where do not provide /bin/bash to improve compose-ability. 2020-03-04 09:35:06 +00:00			`#!/usr/bin/env bash`
tree-wide: add spdx header on all scripts and helpers Even though many of those scripts are very simple, it is easier to include the header than to try to say whether each of those files is trivial enough not to require one. 2021-01-27 13:37:10 +01:00			`# SPDX-License-Identifier: LGPL-2.1-or-later`
meson: generate version tag from git $ build/systemctl --version systemd 239-3555-g6178cbb5b5 +PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN +PCRE2 default-hierarchy=hybrid $ git tag v240 -m 'v240' $ ninja -C build ninja: Entering directory `build' [76/76] Linking target fuzz-unit-file. $ build/systemctl --version systemd 240 +PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN +PCRE2 default-hierarchy=hybrid This is very useful during development, because a precise version string is embedded in the build product and displayed during boot, so we don't have to guess answers for questions like "did I just boot the latest version or the one from before?". This change creates an overhead for "noop" builds. On my laptop, 'ninja -C build' that does nothing goes from 0.1 to 0.5 s. It would be nice to avoid this, but I think that <1 s is still acceptable. Fixes #7183. PACKAGE_VERSION is renamed to GIT_VERSION, to make it obvious that this is the more dynamically changing version string. Why save to a file? It would be easy to generate the version tag using run_command(), but we want to go through a file so that stuff gets rebuilt when this file changes. If we just defined an variable in meson, ninja wouldn't know it needs to rebuild things. 2018-12-20 20:35:25 +01:00
			`set -eu`
			`set -o pipefail`

tools: shellcheck-ify most of the tool scripts 2021-04-20 13:02:02 +02:00			`dir="${1:?}"`
			`fallback="${2:?}"`
meson: generate version tag from git $ build/systemctl --version systemd 239-3555-g6178cbb5b5 +PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN +PCRE2 default-hierarchy=hybrid $ git tag v240 -m 'v240' $ ninja -C build ninja: Entering directory `build' [76/76] Linking target fuzz-unit-file. $ build/systemctl --version systemd 240 +PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN +PCRE2 default-hierarchy=hybrid This is very useful during development, because a precise version string is embedded in the build product and displayed during boot, so we don't have to guess answers for questions like "did I just boot the latest version or the one from before?". This change creates an overhead for "noop" builds. On my laptop, 'ninja -C build' that does nothing goes from 0.1 to 0.5 s. It would be nice to avoid this, but I think that <1 s is still acceptable. Fixes #7183. PACKAGE_VERSION is renamed to GIT_VERSION, to make it obvious that this is the more dynamically changing version string. Why save to a file? It would be easy to generate the version tag using run_command(), but we want to go through a file so that stuff gets rebuilt when this file changes. If we just defined an variable in meson, ninja wouldn't know it needs to rebuild things. 2018-12-20 20:35:25 +01:00
meson-vcs-tag: add work-around for git bug 2018-12-19 13:25:07 +01:00			`# Apparently git describe has a bug where it always considers the work-tree`
			`# dirty when invoked with --git-dir (even though 'git status' is happy). Work`
			`# around this issue by cd-ing to the source directory.`
meson-vcs-tag: enhance version info generation When build from release tarball and where there is parent .git dir, this situtaion will get wrong version info. (build with buildroot) The systemd running show wrong version in dmesg log: systemd[1]: systemd 2019.02-1086-gf5f17c4 running in system mode. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Shoule be: systemd[1]: systemd 241 running in system mode. (-PAM -AUDIT -SEL ^^^^^^^^^^^ 2019-05-10 08:58:08 +00:00			`cd "$dir"`
			`# Check that we have either .git/ (a normal clone) or a .git file (a work-tree)`
			`# and that we don't get confused if a tarball is extracted in a higher-level`
			`# git repository.`
Report version string as in the Boot Loader Spec, fix boot loader upgrades We generate a "version string" that is reported by various tools. This patch changes this version string to use the characters specified for the version string in the Boot Loader Specification. We start using the special characters we have in the spec for this exact purpose and thus fix version comparisons. We also stop using '+' which is not part of the allowed charset and is used for boot attempt counting and should not be part of the version string. The version string is (among other places) used in sd-boot and the comparison result is used by 'bootctl update' to decide whether to install a new binary. Before, because 'nn-rc1' compares higher than 'nn', we would refuse to upgrade pre-release versions. The boot loader is the primary motivation. I'm not aware of programatic version comparisons in other places, but it makes sense to use the same versions string everywhere. (This patch effectively only matters for non-distro builds, because distro builds presumably use -Dversion-tag to set something meaningful. Ideally, those version strings are compatible with our version strings, but this is outside of our control.) 2022-10-25 09:53:49 +02:00			`[ -e .git ] && \`
			`git describe --abbrev=7 --dirty=^ 2>/dev/null \| sed 's/^v//; s/-rc/~rc/' \|\| \`
			`echo "$fallback"`